ALP882e-MIC - Soundcard Digigram - Free user manual and instructions

USER MANUAL ALP882e-MIC Digigram

Professional multi-channel sound cards

Digital Digigram processor card with external connector and drive slots (no visible text or symbols beyond branding)

Close-up of a DIGRAM network card with visible ports and connectors (no readable text beyond branding)

May2023

Author	Date	Status
SBT	12/05/23	Release version

TABLEOFCONTENTS

1 INTRODUCTION 4

2IMPORTANTNOTICE5

3BOXCONTENTS6

4GENERALCHARACTERISTICS6

4.1 Mainhardware characteristics6
4.2 Mainsoftwarecharacteristics6
4.3Routingaudiostreamsinthecard7

5REQUIREDCONFIGURATION10

5.1 Required hardware configuration 10
5.2 NecessarysoftwareconfigurationunderWindows12
5.3 NecessarysoftwareconfigurationunderLinux12

6HARDWAREINSTALLATION13

6.1Preparingthecard 13
6.2Installingthecard 13
6.3StateofinternalLED 13

7SOFTWAREINSTALLATIONUNDERWINDOWS

7.1 Veryfirstinstallation 14
7.2 Updatingthedriverversion 15
7.3 Updating the firmware 15
7.4 Verifying the card installation 16
7.5 Adjusting the internal latency of the card 18
7.6Replacingacard 19
7.7Changingtheorderofinstalledcards 19

8UNINSTALLINGTHEDRIVERUNDERWINDOWS

9CONFIGURING THE CARDUNDER WINDOW SVIATHEALP-XMANAGER APPLICATION 21

9.1Samplingclockmanagement 21
9.2 Managing input and output levels 23
9.3 Managingtheroutingandmixingofinputsignals 28
9.4DisplayofGPIOsandcontrolofGPOs 31
9.5Creating, saving and loading sessions 31
9.6 Firmwareupdateprocedure 31
9.7Keyboardshortcuts 33

10ASIOCONTROLPANELforWindows

11SOFTWAREINSTALLATIONUNDERLINUX 35

11.1 Automaticinstallation 35
11.2 Building and installing the driver manually 36

12CONFIGURINGTHEALP882eANDALP882e-MICCARDSUNDERLINUXVIAAMIXER

12.1 Diagram of the audio input towards audio output chain for 37
12.2 Description of the controls for ALP882e and ALP882e-MIC 39

13 CONFIGURING THE ALP442e AND ALP442e-MIC CARDS UNDER LINUX VIA AMIXER 49

13.1 Diagram of the audio inputs towards audio outputs chain for ALP442e and ALP442e-MIC 49
13.2 Description of the controls for ALP442e and ALP442e-MIC 50
13.3 RULES TO CALCULATE THE GAIN VALUES 56

14SPECIFICATIONS59

14.1 Configuration59
14.2Inputs59
14.3 Outputs60
14.4Audiocharacteristics60
14.5 Analogperformances60
14.6Samplerateconverters(SRC)61
14.7Connectors 61
14.8 Development environment 61

15APPENDICES 62

15.1 ALP442e&ALP442e-MICfunctionaldiagram 62
15.2ALP882e&ALP882e-MICfunctionaldiagram 63
15.3LED 64
15.4Connectorsandswitches 65
15.5HowtousetheGPIOs 65
15.6CablesforALP442eandALP442e-MIC 67

15.6.1 Cableforanalogl/Os 67
15.6.2 Cablefordigitall/Os 69

15.7CablesforALP882eandALP882e-MIC 72

15.7.1 Cableforanalogl/Os 72
15.7.2 Cablefordigitall/Os 75

1INTRODUCTION

This document describes the installation and use of the following Digigram multichannel PCI Express cards under Windows and Linux: ALP442e, ALP442e-MIC, ALP882e, and ALP882e-MIC.

These cards are part of the ALP-X professional sound cards range.

Copyright2023Digigram.Allrightsreserved.

NopartofthismanualmaybereproducedwithoutthepriorconsentofDigigram. Thisreservationincludes photocopying,translatingand/orreformattingtheinformationcontainedinthismanual.

Everything possible has been done to ensure the greatest accuracy, however, a diagram cannot be held liable for any error or omission and reserves the right to make modifications and improvements without prior notice.

DigigramandtheDigigramlogo,ALP442e,ALP442e-MIC,ALP882eandALP882e-MICaretrademarksor brandnamesofDigigramDigital.Allothermarksareownedbytheirrespectivecompanies.

2IMPORTANTNOTICE

Certifications

The product is currently being certified.

This product has been designed in accordance with the following standards:

• EMC Directive 2014/30/EU.
• FCC Rules Part 15, Subpart B.

To ensure compliance with the standards listed above, the following rules must be followed:

• The cable supplied must not be modified.
• The additional cables used must have their respective shielding connected at each end.

Caution

An electrostatic discharge (ESD) can damage the card components. Take the following precautions to avoid such damage when handling the card:

Connect the card and everything entering into contact with it to the earth potential by providing a conductive surface and discharge paths. Take these precautions as a minimum:

• Unplug all power and signal sources.
• Place the card on an earthed conductive work surface.
• Connect to the earth potential using an anti-static strap or by holding an earthed object.
• Earth all the tools entering into contact with the card.

GiventheshortenedlengthofthePCIEXPRESS ^TM connectorandtheresultinglackof mechanicalstability, westronglyadviseagainsttransportingthecardsinstalledina computer, unlessitschassisorcasehasadeviceforholdingthecardfirmlyinplacetoavoid materialdamage.

3BOXCONTENTS

Thank you for purchasing a DIGIGRAM sound card in the ALP-X range.

The box contains:

• The ALP442e, or ALP442e-MIC, or ALP882e, or ALP882e-MIC sound card equipped with a low-profile bracket (79.2 mm),
• a standard height bracket (full height: 120 mm) that can be fitted instead of the low profile one.

The two breakout cables that bear the XLR and BNC connectors are available as an option. One cable supports the analog I/Os, the other one supports the digital I/Os and clocks.

Please contact your card supplier to acquire the Digigram-certified cables.

4GENERALCHARACTERISTICS

ALP442e, ALP442e-MIC, ALP882e and ALP882e-MIC are PCI EXPRESS sound cards. They can be inserted into and therefore operate in PCIe® x1, x4, x8 or x16 slots.

4.1 Mainhardwarecharacteristics

• 4 (ALP442e/ALP442e-MIC) or 8 (ALP882e/ALP882e-MIC) balanced analog inputs with:
• software-adjustable analog gain and a maximum input level of +24 dBu.
• switchable 48V phantom power on each input (ALP442e-MIC and ALP882e-MIC)
  These inputs can be used in unbalanced mode ("-" signal to be connected to the ground).

- 8 electronically balanced analog outputs, with a maximum output level of +24 dBu. (Electronically balanced outputs can process either balanced or unbalanced lines without loss of level).

- 2 (ALP442e/ALP442e-MIC) or 4 (ALP882e/ALP882e-MIC) stereo digital AES3 inputs, 32 kHz to 192 kHz, each with a high quality hardware sample rate converter (SRC).

- 2 (ALP442e/ALP442e-MIC) or 4 (ALP882e/ALP882e-MIC) AES3 stereo digital AES3 outputs (up to 192 kHz)

• 1 AES11 synchronisation input (up to 192 kHz)

• 1 word clock input/output (up to 192 kHz)

- 8 GPI dry contacts and 8 GPO relays

• Low latency multi-card drivers
• Wasapi/DirectSound and ASIO application programming interfaces under Windows
• Alsa and libgpio for Linux
• ALP442e / ALP442e-MIC: 8 playback channels / 8 recording channels
  ALP882e / ALP882e-MIC: 16 playback channels / 16 recording channels
• Simultaneous acquisition and playback in PCM (8, 16 and 24 bit)
• On-board mixing of physical audio inputs and software "playback" devices to physical audio

outputs and software recording devices.

- "ALP-X Manager" application installed with the driver, to control the card settings:

- clock source (internal, wordclock, AES11, AES3 input)

- frequency of the fallback internal clock

- input and output gains and VU-meters

- 48V phantom power switches (for -MIC cards)

- routing of inputs to outputs

- API for implementing the management of the card settings in a software application.

4.3Routingaudiostreamsinthecard

The ALP cards incorporate an on-board mixer in an FPGA component.

On ALP442e and ALP442e-MIC, this is a mixer with 16 mono inputs (8 stereo) and 16 mono outputs (8 stereo). The mixer captures the physical input channels of the card (4 analog channels and 4 AES3 channels) and the 8 channels of the playback devices.

The mixer restores 16 audio channels, respectively to the 8 physical outputs of the card (4 analog channels and 4 AES3 channels) and the 8 recording device channels.

The mixer can therefore be configured to perform the mixing and the routing of the 16 input channels to the 16 output channels (16 mix sums).

graph TD
    A["4 analog input ch."] --> C["16 x 16 on-board mixer (16 mix sums)"]
    B["4 digital input ch."] --> C
    D["8 DAW playback channels"] --> C
    E["4 analog output ch."] --> C
    F["4 digital output ch."] --> C
    G["8 DAW recording channels"] --> C

ALP442e & ALP442e-MIC

On ALP882e and ALP882e-MIC, this is a mixer with 32 mono inputs (16 stereo) and 32 mono outputs (16 stereo).

The mixer captures the physical input channels of the card (8 analog channels and 8 AES3 channels) and the 16 channels of the playback devices.

The mixer restores 32 audio channels, respectively to the 16 physical outputs of the card (8 analog channels and 8 AES3 channels) and the 16 recording device channels.

The mixer can therefore be configured to perform the mixing and the routing of all the 32 input channels to the 32 output channels (32 mix sums).

graph TD
    A["8 analog input channels"] --> C["32 x 32 on-board mixer (32 mix sums)"]
    B["8 digital input channels"] --> C
    D["16 DAW playback channels"] --> C
    C --> E["8 analog output channels"]
    C --> F["8 digital output channels"]
    C --> G["16 DAW recording channels"]

ALP882e & ALP882e-MIC

The following diagrams show a more detailed view of the workflows in the card, with the input and output gains.

graph LR
    A["Playout application(s)"] --> B["Playback device ALP PLAY 1-2"]
    A --> C["Playback device ALP PLAY 3-4"]
    A --> D["Playback device ALP PLAY 5-6"]
    A --> E["Playback device ALP PLAY 7-8"]
    B --> F["+"]
    C --> G["+"]
    D --> H["+"]
    E --> I["+"]
    F --> J["Rec device REC 1-2"]
    G --> K["Rec device REC 3-4"]
    H --> L["Rec device REC 1-2"]
    I --> M["Rec device REC 3-4"]
    N["ANA IN 1"] --> O["ADC"]
    N --> P["Analog channels 1&2"]
    Q["ANA IN 2"] --> R["ADC"]
    Q --> S["Analog channels 3&4"]
    T["ANA IN 3"] --> U["ADC"]
    T --> V["Analog channels 3&4"]
    W["AES IN 1L"] --> X["AES3 channels 1&2"]
    Y["AES IN 1R"] --> Z["AES3 channels 3&4"]
    AA["AES IN 2L"] --> AB["AES3 channels 3&4"]
    AC["AES IN 2R"] --> AD["AES3 channels 3&4"]
    AE["48V and gain"] --> AF[": ALP442e only"]
    AG["16 x 16 mixer"] --> AH["DAC"]
    AH --> AI["Analog channels 1&2"]
    AH --> AJ["DAC"]
    AK["Acquisition applications"] --> AL["Rec device REC 1-2"]
    AK --> AM["Rec device REC 3-4"]
    AK --> AN["Rec device REC 1-2"]
    AK --> AO["Rec device REC 3-4"]
    AH --> AP["ANAL OUT 1"]
    AH --> AQ["ANAL OUT 2"]
    AH --> AR["ANAL OUT 3"]
    AH --> AS["ANAL OUT 4"]
    AH --> AT["DAG channel"]
    AH --> AU["DAG channel"]
    AH --> AV["DAG channel"]
    AH --> AW["DAG channel"]
    AH --> AX["DAG channel"]
    AH --> AY["DAG channel"]
    AH --> AZ["DAG channel"]
    AH --> BA["DAG channel"]
    AH --> BB["DAG channel"]
    AH --> BC["DAG channel"]
    AH --> BD["DAG channel"]
    AH --> BE["DAG channel"]

ALP442e and ALP442e-MIC

graph LR
    A["Playout application(s)"] --> B["Playback device ALP PLAY 1-2"]
    A --> C["Playback device ALP PLAY 15-16"]
    B --> D["32 x 32 mixer"]
    C --> D
    D --> E["Recording device REC 1-2"]
    D --> F["Recording device REC 15-16"]
    E --> G["Acquisition applications"]
    F --> G
    H["ANA IN 1"] --> I["ADC"]
    H --> J["Analog channels 1&2"]
    H --> K["Analog channels 7&8"]
    L["ANA IN 2"] --> I
    L --> J
    M["..."]
    N["ANA IN 7"] --> O["ADC"]
    N --> P["Analog channels 7&8"]
    Q["AES IN 1L"] --> R["AES3 channels 1&2"]
    S["AES IN 1R"] --> T["AES3 channels 7&8"]
    U["AES IN 4L"] --> V["AES3 channels 7&8"]
    W["AES IN 4R"] --> X["AES3 channels 7&8"]
    Y["48V and gain ▶ ALP882e only"] --> Z["Digital channels 1&2"]
    AA["48V"] --> AB["Analog channels 1&2"]
    AC["48V"] --> AD["Analog channels 7&8"]
    AE["+"] --> AF["DAC"]
    AF --> AG["Analog channels 1&2"]
    AH["+"] --> AI["DAC"]
    AI --> AJ["Analog channels 7&8"]
    AK["+"] --> AL["DAC"]
    AL --> AM["Analog channels 1&2"]
    AN["+"] --> AO["DAC"]
    AO --> AP["Analog channels 7&8"]
    AQ["+"] --> AR["DAC"]
    AR --> AS["Analog channels 1&2"]
    AT["+"] --> AU["DAC"]
    AU --> AV["Analog channels 7&8"]
    AW["+"] --> AX["DAC"]
    AX --> AY["Analog channels 1&2"]
    AZ["+"] --> BA["DAC"]
    BA --> BB["Analog channels 7&8"]
    BC["+"] --> BD["DAC"]
    BD --> BE["Analog channels 1&2"]
    BF["+"] --> BG["DAC"]
    BG --> BH["Analog channels 7&8"]
    BI["+"] --> BJ["DAC"]
    BJ --> BK["Analog channels 1&2"]
    BL["+"] --> BM["DAC"]
    BM --> BN["Analog channels 7&8"]
    BO["+"] --> BP["DAC"]
    BP --> BQ["Analog channels 1&2"]
    BR["+"] --> BS["DAC"]
    BS --> BT["Analog channels 7&8"]
    BU["+"] --> BV["DAC"]
    BV --> BW["Analog channels 1&2"]
    BX["+"] --> BY["DAC"]
    BY --> BZ["Analog channels 7&8"]
    CA["+"] --> CB["DAC"]
    CB --> CC["Analog channels 1&2"]
    CD["+"] --> CE["DAC"]
    CE --> CF["Analog channels 7&8"]
    CG["+"] --> CH["DAC"]
    CH --> CI["Analog channels 1&2"]
    CJ["+"] --> CK["DAC"]
    CK --> CL["Analog channels 7&8"]
    CM["+"] --> CN["DAC"]
    CN --> CO["Analog channels 1&2"]
    CP["+"] --> CQ["DAC"]
    CQ --> CR["Analog channels 7&8"]
    CS["+"] --> CT["DAC"]
    CT --> CU["Analog channels 1&2"]
    CV["+"] --> CW["DAC"]
    CW --> CX["Analog channels 7&8"]
    CY["+"] --> CZ["DAC"]
    CZ --> DA["Analog channels 1&2"]
    DB["+"] --> DC["DAC"]
    DC --> DD["Analog channels 7&8"]
    DE["48V and gain ▶ ALP882e only"] --> AE

5REQUIREDCONFIGURATION

5.1 Required hardware configuration

There are no particular hardware restrictions in terms of PC on using the ALP card and its driver. The PC can have standard height or low profile PCIe card slots. The ALP card can in particular be used in 2U racks or reduced size PCs by using the smaller bracket instead of the standard height bracket that is fitted by default.

A PCI EXPRESS™ (PCIe®) x1, x4, x8 or x16 slot must be available to plug in the card.

The processor power and memory required depend mainly on the operating system and the applications used on the PC.

Note: The driver of the card reports to the OS that it does not manage the Sleep mode. As a consequence, the PC should not go to sleep mode.

In case the PC goes to sleep mode under Windows, please proceed as follows to disable the sleep mode.

ThewindowssleepmodeforthePCIebusmustbedisabled.

Go to Windows Settings, System, and select "Power & sleep".

Select Never" for the option "Put the computer to sleep".

Settings Home Find a setting System Display Sound Notifications & actions Power & sleep Screen Save energy and battery life Make your battery last longer by choosing shorter times for screen and sleep settings Never Sleep When plugged in, PC goes to sleep after Never Related settings Additional power settings Help from the web

On the same window, click on "Additional power settings".

Power Options Control Panel Home Choose what the power button does Create a power plan Choose when to turn off the display Change when the computer sleeps Control Panel Home Choose or customize a power plan A power plan is a collection of hardware and system settings (like display brightness, sleep, etc.) that manages how your computer uses power. Tell me more about power plans Preferred plans Balanced (recommended) Change plan settings Automatically balances performance with energy consumption on capable hardware. Power saver Change plan settings Saves energy by reducing your computer's performance where possible. Show additional plans Click on "Change plan settings" in front of "Balanced (recommended)"

	Select “Change advanced power settings”.
	Select “PCI Express”, “Link State Power Management”, and select “Off” for the setting.Click on Ok to validate

5.2 NecessarysoftwareconfigurationunderWindows

ALP cards operate under Windows from 64-bit versions of Windows 10 from version 20H2, and from Windows Server 2019.

To use your ALP-X card, you must install the driver included in the installation kit "ALP-X Kit".

Download the latest version from the digigram website from the ALP882e card support page or from the support pages for ALP882e-MIC and ALP442e and ALP442e-MIC (the same diver supports all the ALP cards).

The "ALP-X Kit" installer is used to install the following components:

• a 64-bit WDM driver offering the WASAPI and DirectSound application interfaces,
• an ASIO driver (32 bits and 64 bits), with its "ALP-X ASIO Settings" configuration interface. Installing this component is optional,
• the "ALP-X Manager" application, which serves to adjust the ALP-X card settings and display the vu-meters. Installing this component is optional.

NoteforWindowsServeroperatingsystems

Under Windows server, it is necessary to allow the applications to access the input audio devices of the sound cards.

Please proceed as follows:

• Go to the Windows Settings, and select Privacy.
• Select "Microphone"
• Activate the option "Allowappstoaccessyourmicrophone"

5.3 NecessarysoftwareconfigurationunderLinux

ALP cards operate under Linux from the 64-bit Kernel 4.1x onwards.

The Alsa driver for Linux is available for downloading. It is supplied as a DKMS package, which can therefore be used to compile the driver for the target Linux distribution used.

6HARDWAREINSTALLATION

Given the shortened length of the PCI EXPRESS connector and the resulting lack of mechanical stability, we strongly advise against transporting the cards installed in a computer, unless it has a device for holding the card firmly in place to avoid material damage.

The card must be inserted in the computer before installing its driver.

6.1 Preparingthecard

Before fixing the card in the computer, make sure you install on the card the bracket matching the PCIe slot into which it is going to be inserted.

To install the card in a standard height PCIe slot, remove the low profile bracket by loosening the two screws on the sides of the cable connector, position the standard height bracket and retighten the two screws.

DIGIGRAM Analog/Original DC-10 DC-11 DC-12 DC-13 DC-14 DC-15 DC-16 DC-17 DC-18 DC-19 DC-20 DC-21 DC-22 DC-23 DC-24 DC-25 DC-26 DC-27 DC-28 DC-29 DC-30 DC-31 DC-32 DC-33 DC-34 DC-35 DC-36 DC-37 DC-38 DC-39 DC-40 DC-41 DC-42 DC-43 DC-44 DC-45 DC-46 DC-47 DC-48 DC-49 DC-50 DC-51 DC-52 DC-53 DC-54 DC-55 DC-56 DC-57 DC-58 DC-59 DC-60 DC-61 DC-62 DC-63 DC-64 DC-65 DC-66 DC-67 DC-68 DC-69 DC-70 DC-71 DC-72 DC-73 DC-74 DC-75 DC-76 DC-77 DC-78 DC-79 DC-80 DC-81 DC-82 DC-83 DC-84 DC-85 DC-86 DC-87 DC-88 DC-89 DC-90 DC-91 DC-92 DC-93 DC-94 DC-95 DC-96 DC-97 DC-98 DC-99 DC-100

6.2Installingthecard

Insert the card in the available PCIe slot and press to position it firmly.

Tighten the screw fixing the bracket to the chassis or lock the card using the device provided for this purpose on your computer.

6.3StateofinternalLED

The ALP card has two internal LEDs on the edge of its mother board, as shown below.. The state of these LEDs can be seen when the PC cover is open.

LED 1 LED2

If the card and its on-board firmware are initialised correctly, LED 1 must be lit solid green, and LED 2 must flash every second (1 Hz).

If LED 2 flashes faster (twice per second - 2 Hz), this means that the firmware version that has been uploaded to the card is corrupted, and the card is running the backup factory firmware version. It is then necessary to re-install the appropriate firmware version.

7SOFTWAREINSTALLATIONUNDERWINDOWS

IMPORTANT

To install the software, you must have administrator rights on the computer.

Please visit the Digigram website at www.digigram.com to obtain the most recent driver.

Should you use a specific application developed or installed by a Digigram partner, this may mean using a specific driver version. In this case, confirm with your application supplier which driver version to use.

Any driver downloaded from our website has to be unpacked before installing it. Double click on the downloaded file to start the auto-extraction utility. You can choose the default destination (temporary Windows folder) or select another one.

7.1 Veryfirstinstallation

• Switch off the computer and insert the ALP card(s) in an available PCIe slot.
• Restart the computer.
• Click on Cancel if the "New device detected" wizard appears.
• Double click on the ALP driver installation file "ALP-X Kit vxx.exe"

	Click on Next to continue with the installation.
	Click on "I agree" to continue with the installation.
	In this window, select the components to be installed in addition to the card driver.ALP-X Manager: application used to configure the settings of the ALP card(s installed.Some software programs may have been designed with the ALP card settings controls built in. In this case, it may be recommended not to install the ALP-X Manager application.ALP-X ASIO Settings: this application is used to configure the ASIO driversettings. There is no need to install it no application reliant on the ASIO interface is used.
	The driver is installed by default in the fold "C:\Program Files (x86)\Digigram\ALP-X".To change this folder, click on Browse and select a new destination.Click on Install to continue with the installation.
	The driver and selected components are being installed.

7.2 Updatingthedriverversion

If a driver version for the ALP card has already been installed, and you want to install another version, first uninstall the current driver version (see chapter "Uninstalling the driver under Windows"), and then install the new version by double clicking on the driver installation file "ALP-X Kit vxx.exe" (see the detailed procedure in the hereinabove chapter "Very first installation").

7.3 Updating the firmware

The ALP card on-board firmware may have to be upgraded, and updates can be supplied by Digigram and prove necessary.

Updating the firmware can be done from the ALP-X Manager GUI (see chapter Firmware update procedure).

7.4 Verifying the card installation

Once the driver and card have been installed as per the process described hereinabove, you can verify that the card is installed correctly and working properly.

7.4.1 Presenceofplaybackandrecordingdevices

The audio devices exposed by the card driver are visible on the Windows Sound panel. To open it, right click on the loudspeaker icon in the Windows taskbar and select "Sounds":

Open Sound settings Open Volume mixer Spatial sound (Off) Sounds Troubleshoot sound problems

The audio devices exposed by the card driver are visible from the "Play" and "Record" tabs.

Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: ALP PLAY 1-2 DIGIGRAM ALPS82e Ready ALP PLAY 3-4 DIGIGRAM ALPS82e Ready ALP PLAY 5-6 DIGIGRAM ALPS82e Ready ALP PLAY 7-3 DIGIGRAM ALPS82e Ready ALP PLAY 9-10 DIGIGRAM ALPS82e Ready ALP REC 1-2 DIGIGRAM ALPS82e Ready ALP REC 3-4 DIGIGRAM ALPS82e Ready ALP REC 5-6 DIGIGRAM ALPS82e Ready ALP REC 7-8 DIGIGRAM ALPS82e Ready ALP REC 9-10 DIGIGRAM ALPS82e Ready Configure Set Default Properties OK Cancel Apply Configure Set Default Inspects OK Cancel Apply

If the card devices are not listed in the Windows Sound control panel:

• Make sure that the card is inserted correctly in the PCI slot and screwed to the computer chassis.
• Try to uninstall the ALP-X Kit (from the Windows control panel, Applications) and re-install it.

Playback to a device can be tested by right clicking on it and selecting "Test". The VU-meter must then show modulation and the sound must be heard on the card output(s) according to the routing and levels configured in the ALP-X Manager application.

If several cards of the same model are installed, their devices have the same name (ALP PLAY and ALP REC), but the name of the card associated to each device differs from an index (no index for the first card, and index starting from 2 for the following cards of the same model). In the example below, the first card in the PCIe slot enumeration order is an ALP882e, the second card is an ALP442e, and the third card is an ALP882e.

Firstcard:ALP882e	Secondcard:ALP442e	Thirdcard:ALP882e
ALPPLAY1-2Digigram ALP882eALPPLAY3-4Digigram ALP882e...ALPPLAY15-16Digigram ALP882e	ALPPLAY1-2Digigram ALP442eALPPLAY3-4Digigram ALP442e...ALPPLAY7-8Digigram ALP442e	ALPPLAY1-22-Digigram ALP882eALPPLAY3-42-Digigram ALP882e...ALPPLAY15-162-DigigramALP882e

Note

The output WDM device level setting, accessible from the Windows Sound control panel, is coupled to the corresponding input level setting of the card's onboard mixer, and impacts left and right channels.

ALP PLAY 1-2 (DIGIGRAM ALP882e) 88 Ensoleillé ENG 437 PM 4/6/2023 PLAY 1-2 PLAY 1-2 Stereo 0 dB 5 M

Note that after the first installation of the card, the default gain settings are as follows:

• Input analog gains are set to -24 dB (+24 dU -> 0 dBfs).
  • Digital input and output gains are set to 0 dB

7.4.2 Carddetected by the Digigram ALP-X Manager application

The ALP-X Manager application, installed with the driver, is used to control the ALP card settings via a graphic interface. This application can be launched from the shortcut created on the desktop or from the start menu, Digigram group. The card must appear as below if it and its driver are installed correctly. Note that a maximum of eight ALP cards can be displayed and handled in ALP-X Manager.

ALP-X Manager FILE SETTINGS HELP SAVE SESSION Untitled Session ALP882e #00044 MASTER Serial Number 27040/000044 Firmware Version 1.5.223 Buffer Size 40 samples

Note: When the ALP Manager application is started, if the driver detects that the firmware version on the ALP Card is too old, a message like the following one is displayed.

Warning

×

Firmware on card #00257 must be updated. The following possible errors can be ignored until the firmware update is done.

OK

If several ALP cards are running in the PC with a too old firmware version, one message per card is displayed.

From the list of ALP cards displayed in the ALP Manager, a firmware to be updated is displayed in red colour as shown below.

2- ALP222e #00964 NASTER Serial Number 270300000964 Firmware Version 2.2.252 Buffer Size 48 samples ALP442e-MIC #00257 NASTER Serial Number 270500000257 Firmware Version 1.8.240 Buffer Size 48 samples ALP222e-MIC #20003 NASTER Serial Number 270300020003 Firmware Version 24.273 Buffer Size 48 samples

Please refer to the firmware update procedure.

7.4.3 Cardavailability under ASIO

If the ASIO driver for the card has been installed (option to be selected during the installation procedure), then the card must be detected and displayed in the ASIO control panel.

This control panel can be started from the ASIO application to select the appropriate audio devices. All cards present must be listed in the "ACTIVE CARDS GROUP" selection list.

ALP-X ASIC Settings HELP ACTIVE CARDS GROUP ALP882e-MIC ASIO CHANNELS ALLOCATION BUFFER SIZE (latency) 512 samples (10.7 ms at 48kHz) SAMPLE SIZE ● 16 bits ● 24 bits ● 32 bits AUDIO ERRORS RESET Playing errors counter 0 Recording errors counter 0 Last Reset //://://:// //://:// Enable direct monitoring control Boost ASIO priority OPEN "DIGIRAN ALP-X MANAGER"

7.5Adjustingtheinternallatencyofthecard

The following describes advanced settings that may impact the proper functioning of data exchanges between the card and the PC. It is recommended that you do not change these settings.

The internal latency of the card is determined by the duration of sample buffers the card exchanges with the PC for playback and recording audio streams. By default, this duration is 512 sampling clock periods (10.7ms at 48 kHz).

The lower the internal latency, the lower the global latency of the card. However, a very low latency may lead to "choppy" audio on slow PCs. In this case it is necessary to increase the internal latency.

The internal latency of the card can be changed by electing the properties of the card, from the Windows Device Manager:

Software devices Sound, video and game controllers DIGIGRAM ALP882e-MIC

Right click on the ALP card, and select Properties, Advanced. The following window is displayed:

DIGIGRAM ALP882e-MIC Properties General Advanced Driver Details Events Resources Internal buffer (in samples) 8 256 48 2 64 Event quantity / applicative buffer OK Cancel

Internalbuffer: number of sampling clock periods of the buffers exchanged between the card and the driver.

Eventquantity: This parameter should not be modified without having technical advice from Digigram.

Select the new latency value, and click on "Ok".

The PC must be restarted.

7.6Replacingacard

If an ALP card has to be replaced by another one, it is strongly recommended to proceed as follows:

• Turn off the PC.
• Remove the card to be replaced.
• Restart the PC.

- Go to the Windows Device Manager, and select "Sound, video and game controllers". From the "View" menu, select "Show Hidden devices". Select the ALP card that was hidden and select "Uninstall".

• Turn off the PC.
• Insert the new card.
• Restart the PC.

7.7Changingtheorderofinstalledcards

If several ALP cards are installed, and you want to move cards from a slot to another, it is strongly recommended to proceed as follows:

• Turn off the PC.
• Remove the cards to be moved.
• Restart the PC.

• Go to the Windows Device Manager, and select "Sound, video and game controllers". From the "View" menu, select "Show Hidden devices". Select the ALP cards that were hidden and select "Uninstall".

• Turn off the PC.

• Insert the cards in the appropriate slots.
• Restart the PC.

8UNINSTALLINGTHEDRIVERUNDER WINDOWS

Proceed as follows to uninstall an ALP driver version.

Please note that uninstalling a version must be done prior to the installation of another version.

	From Windows Start menu, open the "Settings" panel
[20SA] AppsUninstall, defaults, optional features	Click on the "Apps" icon.
Apps & featuresOptional featuresApp execution aliasesSearch, sort, and filter by drive. If you would like to uninstall or move an app, select it from the list.Sort by: Name√Filter by: All drives√50 apps found[33X10] 3D Viewer 16.0 KBMicrosoft Corporation 8/4/2022[AK27] ALP-X Kit 145 MB9/20/2022	From the list of installed Apps & features, select ALP-X k
Uninstall	Click on Uninstall.This will remove all the ALP-X ... components

Apps & features

9CONFIGURINGTHECARDUNDERWINDOWS VIATHEALP-XMANAGERAPPLICATION

This application can be launched from the shortcut created on the desktop or from the start menu, Digigram group.

When the ALP Manager application is started, if the driver detects that the firmware version on the ALP Card is too old, a message like the following one is displayed.

Warning

Firmware on card #00257 must be updated. The following possible errors can be ignored until the firmware update is done.

If several ALP cards are running in the PC with a too old firmware version, one message per card is displayed.

From the list of ALP cards displayed in the ALP Manager, a firmware to be updated is displayed in red colour as shown below.

2- ALP222e #00964 NASTER Serial Number 270300000964 Firmware Version 2.2.252 Buffer Size 48 samples ALP442e-MIC #00257 NASTER Serial Number 270300000257 Firmware Version 1.8.240 Buffer Size 48 samples ALP222e-MIC #20003 NASTER Serial Number 270300000003 Firmware Version 2.4.273 Buffer Size 48 samples

Please refer to the firmware update procedure.

If another view is displayed, click on the icon to display the list of ALP cards present and detected.

The following settings are displayed for each ALP card detected:

• its serial number,
  • the on-board firmware version,
• the size of buffers exchanged between the driver and the card (see Adjusting the internal latency of the card).

9.1Samplingclockmanagement

Click on the clock icon to display the clock selection settings of each present ALP card.

	The ALP card can be configured as an internal clock or exte clock (AES11, AES3 input, Word Clock).To select the clock source, click on the "Prioritized source" selection list and select the desired source.A red padlock icon on the right of the clock name means t clock signal is absent. A green padlock icon on the right of clock name means the clock signal is present.In addition, the detected sample rate of an external clock is displayed in the clock list.
	If the internal clock is selected ("Internal"), select the sampler Rate value from the "Internal Sampling Rate" selection list.Possible values are: (in kHz)11.025, 16, 22.05, 24, 32, 44.1, 488.2, 96, 128, 176.4, 192, and Application.Selecting "Application" means that the sampling frequency is by the application.Setting the card to one of the frequency values means that software application that uses the card must be configured at the same frequency value.
	If an external clock is selected, the card is synchronised to long as it is present.If the external clock signal is lost, the ALP card falls back to internal clock, which is automatically set at the same frequent as the external clock.
	The clock source used at a given moment is displayed in th "Sync Source" field, and its frequency value is given by the "Sampling Rate" field.

9.2 Managing input and output levels

At the first installation of the card, the default gain settings are as follows:

• Input analog gains are set to -24 dB (+24 dU -> 0 dBfs).
  • Digital input and output gains are set to 0 dB
• The routing matrix is configured this way:

ALP442e&ALP442e-Mic	ALP882e&ALP882e-Mic
Play 1-2 routed to analog outputs 1-2Play 3-4 routed to analog outputs 3-4Play 5-6 routed to left & right channels of AES3 outputPlay 7-8 routed to left & right channels of AES3 output	Play 1-2 routed to analog outputs 1-2Play 3-4 routed to analog outputs 3-4Play 5-6 routed to analog outputs 5-6Play 7-8 routed to analog outputs 7-8Play 9-10 routed to left & right ch. of AES3 output 1Play 11-12 routed to left & right ch. of AES3 output 2Play 13-14 routed to left & right ch. of AES3 output 3Play 15-16 routed to left & right ch. of AES3 output 4
Analog Inputs 1-2 routed to Rec channels 1-2Analog Inputs 3-4 routed to Rec channels 3-4Left & right channels of AES3 Input 1 routed to Rec dLeft & right channels of AES3 Input 2 routed to Rec d	Analog Inputs 1-2 routed to Rec channels 1-2Analog Inputs 3-4 routed to Rec channels 3-4Analog Inputs 5-6 routed to Rec channels 5-6Analog Inputs 7-8 routed to Rec channels 7-8Left & right channels of AES3 Input 1 routed to Rec ch.Left & right channels of AES3 Input 2 routed to Rec ch.Left & right channels of AES3 Input 3 routed to Rec ch.Left & right channels of AES3 Input 4 routed to Rec ch.

The other routing points of the matrix are muted (no mix).

Click on the icon to access the "I/O Monitor" view which is used to adjust audio levels.

I/O MONITOR EAV SESSION Unified Session INPUTS PLAY 1-2 PLAY 3-4 PLAY 5-6 PLAY 7-8 PLAY 9-10 PLAY 11-12 PLAY 13-14 PLAY 15-16 ANA 1-2 ANA 3-4 PLAYBACK STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRENO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCO STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN STRECCN

The onboard mixer features two categories of audio inputs and audio outputs

• Physical inputs (analog and AES3)
- Software playback inputs. They correspond to the playback devices exposed by the driver to the applications.
• Physical outputs (analog and AES3)

- Software recording outputs. They correspond to the recording devices exposed by the driver and captured by the applications

The table below gives the correspondence between the sound devices exposed in the operating system and the Play inputs and Rec outputs of the matrix.

		Software audio device	Windows Audio Devices	ASIO devices		Software audio device	Windows Audio Devices	ASIO devices
		Playback devices = Mixer inputs				Recording devices = Mixer output
ALP442e/MIC	ALP882e/MIC	PLAY 1-2 (stereo)PLAY 1 & PLAY 2 (mono)	ALP PLAY 1-2	ALP-1 / ALP-2		REC 1-2 (stereo)REC 1 & REC 2 (mono)	ALP REC 1-2	ALP-1 / ALP-2
		PLAY 3-4 (stereo)PLAY 3 & PLAY 4 (mono)	ALP PLAY 3-4	ALP-3 / ALP-4		REC 3-4 (stereo)REC 3 & REC 4 (mono)	ALP REC 3-4	ALP-3 / ALP-4
		PLAY 5-6 (stereo)PLAY 5 & PLAY 6 (mono)	ALP PLAY 5-6	ALP-5 / ALP-6		PLAY 5-6 (stereo)REC 5 & REC 6 (mono)	ALP REC 5-6	ALP-5 / ALP-6
		PLAY 7-8 (stereo)PLAY 7 & PLAY 8 (mono)	ALP PLAY 7-8	ALP-7 / ALP-8		REC 7-8 (stereo)REC 7 & REC 8 (mono)	ALP REC 7-8	ALP-7 / ALP-8
	ALP882e/MIC	PLAY 9-10 (stereo)PLAY 9 & PLAY 10 (mono)	ALP PLAY 9-10	ALP-9 / ALP-10		REC 9-10 (stereo)REC 9 & REC 10 (mono)	ALP REC 9-10	ALP-9 / ALP-10
		PLAY 11-12 (stereo)PLAY 11 & PLAY 12 (mono)	ALP PLAY11-12	ALP-11 / ALP-12		REC 11-12 (stereo)REC 11 & REC 12 (mono)	ALP REC 11-12	ALP-11 / ALP-12
		PLAY 13-14 (stereo)PLAY 13 & PLAY 14 (mono)	ALP PLAY 13-14	ALP-13 / ALP-14		REC 13-14 (stereo)REC 13 & REC 14 (mono)	ALP REC 13-14	ALP-13 / ALP-14
		PLAY15-16 (stereo)PLAY 15 & PLAY 16 (mono)	ALP PLAY 15-16	ALP-15 / ALP-16		REC 15-16 (stereo)REC 15 & REC 16 (mono)	ALP REC 15-16	ALP-15 / ALP-16

The physical inputs are displayed in the mixer GUI when the "INPUTS" button is activated.

The software playback inputs are displayed when the "PLAYBACK" button is activated.

The physical outputs are displayed when the "OUTPUTS" button is activated.

The software recording inputs are displayed when the "RECORD" button is activated.

From the bottom bar of the I/O Monitor view, select the ALP card to display its Monitor page.

-15.8 dB -15.2 dB S M S M ALP882e #00044 ALP223eHIC #00931

The following table lists the various possible settings from the mixer view.

	Click on this icon to display the concerned pair of channels as two channel strips.
	Click on this icon to display the concerned pair of channels as one channel strip.On a stereo channel strip, the controls (volumes, solo, mute) are ap to the left and right channels.
	ChannelstripnameClick on the channel strip name and enter a new name.Note: when a channel strip display is changed from mono to stereo, stereo to mono, the channel stream name goes back to the default As a consequence, it is recommended to keep the display mode use (mono or stereo) when the channel strip names have been changed.
	AnaloginputgainsettingsThe first screen capture on the left relates to the ALP442e or ALP88 screen capture below relates to the ALP442e-MIC or ALP882e-MIC, w a Line/Mic level selection is available.The analog input gain can be adjusted thanks to the potentiometer top of the analog input channel strip. Note that if the inputs are dis as a stereo input, the gain adjustment applies to the left and right channels.There are three ways of adjusting the input gain.1) Click on the round potentiometer without releasing and move the mouse left or right to decrease and increase the gain respective steps of 0.5 dB.2) Press the Ctrl key without releasing and then click on the potentiometer with the mouse. The gain can be adjusted in step dB with the mouse wheel as long as the Ctrl key remains press3) Click on the gain value displayed below the potentiometer, write enter the new value.Double click on the potentiometer to reset the analog gain to 0 dB.For ALP442e / ALP882e and ALP442e-MIC / ALP882e-MIC in LINE input mode, analog input gain values range from -24 dB to +16 dB, in ste 0.5 dB.Selecting the Mic mode from the Line/Mic selector sets the input to Mic mode. This changes the gain range and gives access to the 48V phantom power switch.For ALP442e-MIC / ALP882e-MIC in Mic input mode, analog input gai values range from 0 dB to +56 dB, in steps of 0.5 dB.Here are a few examples of input level alignment:
	ALP442e / ALP882e and ALP442e-MIC / ALP882e-MIC in LINE input mode	ALP442e-MIC / ALP882e-MIC in Mic input mode
	Gain=+16dB: -16 dBu->0 dBfs.Gain=+ 10 dB: -10 dBu->0 dBfsGain=+ 0 dB: 0 dBu->0 dBfsGain=-10 dB: +10 dBu->0 dBfsGain=-24 dB: +24 dBu->0 dBfs	Gain= 56 dB: -56 dBu->0 dBfsGain= 46 dB: -46 dBu->0dBfsGain= 30 dB: -30 dBu->0dBfsGain= 10 dB: -10 dBu->0 dBfsGain= 0 dB: 0 dBu->0 dBfsGapain= -10 dB: +10 dBu->0 dBfs
	DigitalgainsettingsDigital gains are available for all the input and output audio streams can be adjusted via the faders.There are three ways of adjusting the digital gain.1) Click and hold the fader button down and move the mouse vert to increase/decrease the gain in 0.1 dB steps.2) Press the Ctrl key without releasing and then click on the fader button. The gain can be adjusted with the mouse wheel in 1 dB as long as the Ctrl key remains pressed.3) Click on the gain value displayed below the fader, write and ente new value.Double click on the fader to reset the digital gain to 0 dB.Digital gain values range from -90.1 dB to +12 dB, in steps of 0.1 d
	Each Vu-meter displays the input signal level in dBfs, before or after digital gain is applied..Double click on the blue radio button on the bottom left of the vu- to display the Pre/Post digital gain selection. The radio button appea depends on the selected mode: Pre-fader : Post-fader
	The Vu-meters display the levels in peak-meter.The clipping threshold of the vu-meters can be adjusted from the gl menu "Settings/Audio meters". When the signal level exceeds this threshold, the red LED above the Vu-meter lights up.
	48Vphantompower(ALP442e-MIC/ALP882e-MIC)Setting the phantom power on an analog input is possible when this is set to Mic level mode.
	SoloThe solo button has an effect on the two channels of a stereo pair.A click on this button sets the two channels in solo mode, and it tu
	yellow.
	MuteThe mute button has an effect on the two channels of a stereo paiA click on this button sets the two channels in mute mode, and it t red.
	PairingchannelstripsTo set a common level for several input channel strips, validate the on each channel strip. The gain setting on one channel strip is then applied to all the paired channel strips.
	PreorpostfaderVu-metersThe blue LED button allows selecting if the Vu-meter displays the sig level before or after the digital gain set via the fader.To select pre or post fader Vu-meter, click on the blue LED button right of the Vu-meter bar(s), and select the mode.

9.3 Managingtheroutingandmixingofinputsignals

Click on the "Grid" to access the "Matrix" view which is used to mix/route input signals towards the outputs

From the bottom bar of the MATRIX view, select the ALP card to display its matrix.

For each ALP card, the internal mixer can mix all or some of the input signals towards each output. Each output can therefore receive its own mix of inputs.

As in the "I/O Monitor" view, it is possible to select the inputs displayed in this matrix (physical inputs-INPUTS and/or software play inputs-PLAYBACK) and the outputs displayed (physical outputs-OUTPUTS and/or outputs-RECORD).

There are two possible matrix views:

• A complete view that shows all the mixing points. This view is displayed when the "MATRIX MODE" selector is positioned on "ADVANCED" (view displayed above).
• A reduced view which displays a sub-assembly of mixing points. This view is displayed when the "MATRIX MODE" selector is positioned on "REDUCED" (below).

It allows to route left input channels of the matrix to its left output channels, and the right input channels to its right output channels

Each mixing point can be activated or deactivated by clicking on it (Mute / Unmute). All the hidden boxes are deactivated mixing points.

The digital gain applied to the channel can be adjusted for each mixing point. To do this, press the Ctrl key, place the mouse cursor over the mixing point without clicking and use the mouse wheel to increase or decrease the digital gain value; the gain value applied is then displayed during the adjustment.

To directly set the gain to 0dB, press the Ctrl key and double click on the mixing point. Visually, a mixing point is a solid blue if the gain is at its maximum (+12 dB). It is circled in blue and empty if the gain is at its minimum value (-90 dB).

Caution:

Do you want to switch to a reduced matrix ? Your settings will be lost.

Moving from "ADVANCED" view to "REDUCED" view deactivates certain mixing points. If gain settings have been configured on these points in the "ADVANCED" view, these settings are lost when moving to "REDUCED" mode. The message opposite warns the user. Select Yes to confirm to move to REDUCED mode.

As an example, the matrix below allows the following:

- Routing the audio stream played by an application: playback channels 1&2 routed towards analog outputs 1&2, and playback channels 3&4 routed towards the AES3 output.

- Routing the physical input signals towards the corresponding outputs (ANA IN 1 towards ANAOUT1, ANAIN2 towards ANAOUT2, AES3 IN towards AES3 OUT).

As a result, playback signals and input signals are mixed to the outputs.

Note that a gain is applied to each input signal towards the output.

- Routing the content of physical inputs towards the associated recording outputs, so that an application can capture the input signals.

9.4 Display of GPIOsandcontrol of GPOs

Click on the GPIO to access the view that displays the state of the card's GPIO, from which the GPO can be activated/deactivated.

FILE SETTINGS HELP SAVE SESSION Untitled Session GPIOS GPI DESCRIPTION STATE GPO DESCRIPTION STATE 1 Open 1 Open 2 Open 2 Open 3 Open 3 Open 4 Open 4 Open 5 Open 5 Open 6 Open 6 Open 7 Open 7 Open 8 Open 8 Open GPIO

From the bottom bar of the GPIOs view, select the ALP card to display the status of its GPIOs.

The status of the GPIs is displayed on the left, and the state of the GPO is displayed on the right.

To position the state of a GPO manually, click on the "STATE" switch matching this GPO to move it to the desired position: Open or Close.

9.5Creating, saving and loading sessions

The current configuration of all settings defined in ALP-X Manager can be saved. Go to the File menu and select "Save session as".

To load a settings configuration, go to the File menu and select "Open session".

To create a new configuration from blank settings, go to the File menu and select "New session".

To save the settings during an existing session, go to the File menu and select "Save".

ALP-X Manager FILE HELP New Session Ctrl+N Open Session Ctrl+O Save Session as Ctrl+Alt+S Save Ctrl+S

9.6 Firmwareupdateprocedure

The ALP card on-board firmware may have to be upgraded, and updates can be supplied by Digigram and prove necessary.

To perform an update, click on the button on the right of the "Firmware version" field, as shown on the screen capture below.

ALP882e #00044 MASTER Serial Number 270400000044 Firmware Version 1.6.223 Buffer Size 48 samples

	The ALP card is selected from the list of cards detected.Click on the "Browse" button and select the file matching the firmware to be applied (file with extension ".bin").
	Click on the "Update" button to launch the update.
	The firmware upload is in progress
	Once the upload is completed, it is necessary to shut down computer. Select "Shut down now" for an immediate automat shutdown, or "Shut down later" if you want to shut down the computer later. In this latter case, don't forget to shut down restart the computer before using the card.Select "Yes" to confirm the shut down, or "No, I will shut do later". In this latter case, don't forget to shut down and resta the computer before using the card.

9.7Keyboardshortcuts

Keyboard shortcut	Action
Session
Ctrl + S	Save
Ctrl + Alt + S	Save As
Ctrl + N	New
Ctrl + O	Open
Potentiometer/Fader
Ctrl + Wheel	1 dB increments on the potentiometer/fader
Ctrl + Shift + Wheel	0.1 dB increments on the fader0.5 dB increments on the potentiometer
Double click	Reset the fader/potentiometer value to 0
Matrix
Ctrl + Wheel	1 dB increments on the mixing point
Ctrl + Shift + Wheel	0.1 dB increments on the mixing point

10ASIOCONTROLPANELforWindows

The ASIO control panel can be started from the Asio application, from the menu allowing for the settings of the audio device and the ASIO configuration.

ALP-X Asia Settings HELP ACTIVE CARDS GROUP ALP882e-MIC ASIO CHANNELS ALLOCATION BUFFER SIZE (latency) 512 samples (10.7 ms at 48kHz) SAMPLE SIZE 16 bits 24 bits 32 bits AUDIO ERRORS PLAYING errors counter 0 RECORDING errors counter 0 Last Reset ////-//-// ///-// //-// Enable direct monitoring control Boost ASIO priority OPEN "DIGIGRAN ALP-X MANAGER"

Active cards group/Asio channels allocation	This section is used to select the input channels and output channels are managed by the ASIO driver and which can therefore be used by application based on the ASIO interface.For every card selected from the "ACTIVE CARDS GROUP" list, click on "ASIO CHANNELS ALLOCATION" button and select the channels to be under ASIO.
	IMPORTANT: The current driver version does allow for the selection of multiple cards to be used from the same application.A card that is not used under ASIO can be used from a WASAPI or DirectSound application.
	Buffersize(latency)This section is used to select the size of audio buffers used by the A driver. This size is given as a number of samples and a cross-referen duration is indicated for a sampling frequency of 48 kHz. The higher buffer size, the higher the latency.A small buffer size can lead to breaks in audio throughput on a low-powered machine or on a machine with a high processor load.The latency value to selectmustbeatleast 5ms (which is 256 samples 48 kHz).The default value is set to 512 samples (10,7ms).SamplesizeThis setting defines the format of samples exchanged between the application and the card driver.
	EnableDirectMonitoringControlTick this setting to authorise an ASIO application to drive the zero lat hardware monitoring of inputs towards outputs. If an application mon software, this causes latency between the input signal and the output signal, linked to the ASIO buffer sizes.
	BoostASIOpriorityThis option allows the system to run the ASIO process with high pri thereby increasing the reliability of this process. Caution, however, this can make other processes unstable.
	AudioerrorsThis section is used to visualise current errors for playback and recor via the ASIO driver. Errors frequently reflect too small an ASIO buffer for the system's possibilities. Should they occur, then the buffer size to be increased until there are no more errors.Sync status errors reflect clock synchro errors (AES11 external clock, WordClock or inter-card synchro).Error counters can be reset to zero by clicking on the RESET button.Lastly, a time counter displays the time elapsed since the last counter reset.

11SOFTWAREINSTALLATIONUNDERLINUX

11.1 Automaticinstallation

This method works on most major distributions, by using the DKMS system. After the initial installation, nothing more is needed to be done as DKMS will take care of re-building the driver every time the kernel is updated, or a new kernel is installed.

Requirements:

A package manager which supports DKMS. Most major distributions support this, please check your distribution's documentation if you are not sure.

DKMS

The kernel headers for the kernel version(s) you need

Git, if you don't use a Debian-based or RPM-based distribution

1. Download and install the driver
2. Install the dependencies
3. Download the driver package (Choose the latest .deb or .rpm package)
4. Install the driver package

11.2 Building and installing the driver manually

This method works for any Linux system, but it is necessary to apply it every time the kernel is updated, as it doesn't use any package manager to automatically rebuild the driver.

Requirements:

The kernel headers for the kernel version(s) you need

Git

Make and a C compiler such as gcc

Please refer to your distribution's documentation to install these requirements.

1. Get the source code (contact [e-mail])
2. Compile the driver: Go into the src/ directory, and compile the driver by simply running make to create the file: snd-alpx.ko and snd-pcm-dmaengine.ko depending on your current kernel's configuration
3. Install and load the driver: The compilation has generated a kernel module: snd-alpx.ko.
4. Copy this/these module(s) to the kernel's module directory:
5. Run "sudo depmod -a"
6. Run sudo modprobe snd-alpx
7. Then run lsmod | grep snd to check installation of the driver
8. Run aplay -l or L to list the devices
9. Launch alsamixer

12CONFIGURINGTHEALP882eAND ALP882e-MICCARDSUNDERLINUXVIAAMIXER

12.1 Diagramoftheaudioinputstowardsaudio outputchainfor

The mixer inputs and outputs are numbered 0 to 31. The mixer offers 32 mix buses, with 32 input channels per bus, and a digital gain associated to each channel in a mix.

• The DAW0 to DAW15 inputs are the 16 audio channels coming from the host machine (played by software on the host machine).
• The ANA0 to ANA7 inputs are the eight analog input channels (IN1 and IN8).
• The inputs AES0 to AES7 are the eight input channels of the four digital inputs AES/EBU IN1 to AES/EBU IN4.
• The DAW0 to DAW15 outputs are the 16 audio channels destined for the host machine (captured by software on the host machine).
• The ANA0 to ANA7 outputs are the eight analog output channels (OUT1 and OUT8)
• The AES0 to AES7 outputs are the eight channels of the four stereo digital outputs AES/EBU OUT1 to AES/EBU OUT4.

By default, the matrix gains are positioned so as to have:

DAW0	PLAY ->	ANA0	OUT	1
DAW1	PLAY ->	ANA0	OUT	2
DAW2	PLAY ->	ANA0	OUT	3
DAW3	PLAY ->	ANA0	OUT	4
DAW4	PLAY ->	ANA0	OUT	5
DAW5	PLAY ->	ANA0	OUT	6
DAW6	PLAY ->	ANA0	OUT	7
DAW7	PLAY ->	ANA0	OUT	8

DAW8	PLAY -> AES0	OUT (AES/EBU OUT1 Left)
DAW9	PLAY -> AES1	OUT (AES/EBU OUT1 Right)
DAW10	PLAY -> AES2	OUT (AES/EBU OUT2 Left)
DAW11	PLAY -> AES3	OUT (AES/EBU OUT2 Right)
DAW12	PLAY -> AES4	OUT (AES/EBU OUT3 Left)
DAW13	PLAY -> AES5	OUT (AES/EBU OUT3 Right)
DAW14	PLAY -> AES6	OUT (AES/EBU OUT4 Left)
DAW15	PLAY -> AES7	OUT (AES/EBU OUT4 Right)

ANA1	IN	->	DAW0	Record
ANA2	IN	->	DAW1	Record
ANA3	IN	->	DAW2	Record
ANA4	IN	->	DAW3	Record
ANA5	IN	->	DAW4	Record
ANA6	IN	->	DAW5	Record
ANA7	IN	->	DAW6	Record
ANA8	IN	->	DAW7	Record

AES0 (AES/EBU IN1 Left) -> DAW8 Record

AES1 (AES/EBU IN1 Right) -> DAW9 Record

AES2 (AES/EBU IN2 Left) -> DAW10 Record

AES3 (AES/EBU IN2 Right) -> DAW11 Record

AES4 (AES/EBU IN3 Left) -> DAW12 Record

AES5 (AES/EBU IN3 Right) -> DAW13 Record

AES6 (AES/EBU IN4 Left) -> DAW14 Record

AES7 (AES/EBU IN4 right) -> DAW15 Record

12.2 Description of the controls for ALP882e and ALP882e-MIC

12.2.1Clock,SRCs,andphantompowerforALP882e-MIC)

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Detail
Card clock source	Clk Src	R	0	1089	0123456	Word Clk = Wordclock inAES Syn = AES11 Sync inAES Aud 1/2 = AES3 in 1AES Aud 3/4 = AES3 in 2AES Aud 5/6 = AES3 in 3AES Aud 7/8 = AES3 in 4Internal = Internal clock
Effective Clock value	Clk Eff Base	R	0	1090	01234567	Invalid,Reserved,Reserved,Reserved,Reserved,32kHz,44.1kHz,48kHz
Effective clock value in kHz is:“Clk Eff base” x “Clk Eff Coef”.	Clk Eff Coef	R	0	1091	012	x1,x2,x4
Enable / disable the SRC on the AES3 input 1	AES SRC 1/2Disable	W	0	1097	10	DisabledEnabled
Enable / disable the SRC on the AES3 input 2	AES SRC 3/4Disable	W	0	1098
Enable / disable the SRC on the AES3 input 3	AES SRC 5/6Disable	W	0	1099
Enable / disable the SRC on the AES3 input 4	AES SRC 7/8Disable	W	0	1100
Authorisation to switch to a sour with lower priority	Clk Src Up	W	0	1092	01	No switchingSwitching authorised
Authorisation to switch to a sour with higher priority	Clk Src Down	W	0	1093
Clock priority 0 (highest priority)	Clk P0	W	0	1094	0123456	Word Clk = Wordclock inAES Syn = AES11 Sync inAES Aud 1/2 = AES3 in 1AES Aud 3/4 = AES3 in 2AES Aud 5/6 = AES3 in 3AES Aud 7/8 = AES3 in 4Internal = Internal clock
Clock priority 1	Clk P1	W	0	1095
Clock priority 2	Clk P2	W	0	1096
Clock priority 3 (lowest priority)	Clk P3	W	0	1097
Description	Alsa mixer control	Read / Write	Index	NumId	Value	Status
Phantom power on analog In 1	McPh1	R / W	0	1110	01	48V OFF48 V ON
Phantom power on analog In 2	McPh2		0	1111
Phantom power on analog In 3	McPh3		0	1112
Phantom power on analog In 4	McPh4		0	1113
Phantom power on analog In 5 (*)	McPh5		0	1114
Phantom power on analog In 6	McPh6		0	1115
Phantom power on analog In 7	McPh7		0	1116
Phantom power on analog In 8	McPh8		0	1117

12.2.2 Gainson the physical inputs

Descriptionofcontrol	Alsamixer control	Read / Write	Index	NumId	Values	GainindBALP442e ALP442e-MCALP882e ALP882e-MIC
Analog gain on analog input 1	Codec Analog Capture Volume	R / W	0	1102	012...50...82...162	Mute Mute-24.5 dB N.A-24 dB N.A... N.A... N.A0 dB 0dB... ...+16 dB +16 dBN.AN.AN.A +56 dB
Analog gain on analog input 2			1	1103
Analog gain on analog input 3			2	1104
Analog gain on analog input 4			3	1105
Analog gain on analog input 5			4	1106
Analog gain on analog input 6			5	1107
Analog gain on analog input 7			6	1108
Analog gain on analog input 8			7	1109
Digital gain on analog input 1	Ana Capture Volume	R / W	0	17	019011021	-90.1dB-90 dB0 dB+12 dB
Digital gain on analog input 2			1	18
Digital gain on analog input 3			2	19
Digital gain on analog input 4			3	20
Digital gain on analog input 5			4	21
Digital gain on analog input 6			5	22
Digital gain on analog input 7			6	23
Digital gain on analog input 8			7	24
Digital gain on left channel of AES3 input 1	AES Capture Volume	R / W	0	25	019011021	-90.1dB-90 dB0 dB+12 dB
Digital gain on right channel of AES3 input			1	26
Digital gain on left channel of AES3 input 2			2	27
Digital gain on right channel of AES3 input			3	28
Digital gain on left channel of AES3 input 3			4	29
Digital gain on right channel of AES3 input			5	30
Digital gain on left channel of AES3 input 4			6	31
Digital gain on right channel of AES3 input			7	32

12.2.3GainsontheapplicationDAWinputs(playfrom softwareapplications)

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Digital gain on Play DAW0 input	DAW Playback Volume	R / W	0	1	019011021	-90.1 dB-90 dB0 dB+12 dB
Digital gain on Play DAW1 input			1	2
Digital gain on Play DAW2 input			2	3
Digital gain on Play DAW3 input			3	4
Digital gain on Play DAW4 input			4	5
Digital gain on Play DAW5 input			5	6
Digital gain on Play DAW6 input			6	7
Digital gain on Play DAW7 input			7	8
Digital gain on Play DAW8 input			8	9
Digital gain on Play DAW9 input			9	10
Digital gain on Play DAW10 input			10	11
Digital gain on Play DAW11 input			11	12
Digital gain on Play DAW12 input			12	13
Digital gain on Play DAW13 input			13	14
Digital gain on Play DAW14 input			14	15
Digital gain on Play DAW15 input			15	16

12.2.4Gainsonthephysicaloutputs

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Digital gain on analog output 1	Analog Playback Volume	R / W	0	33	019011021	-90.1 dB-90 dB0 dB+12 dB
Digital gain on analog output2			1	34
Digital gain on analog output3			2	35
Digital gain on analog output4			3	36
Digital gain on analog output5			4	37
Digital gain on analog output 6			5	38
Digital gain on analog output 7			6	39
Digital gain on analog output 8			7	40
Digital gain on left channel of AES3 output 1	AES Playback Volume	R / W	0	41	019011021	-90.1dB-90 dB0 dB+12 dB
Digital gain on right channel of AES3 output			1	42
Digital gain on left channel of AES3 output 2			2	43
Digital gain on right channel of AES3 output			3	44
Digital gain on left channel of AES3 output 3			4	45
Digital gain on right channel of AES3 output			5	46
Digital gain on left channel of AES3 output 4			6	47
Digital gain on right channel of AES3 output			7	48

12.2.5GainsontheDAWoutputs(recordingfromsoftware applications)

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Digital gain on DAW0 output	DAW Capture Volume	R / W	0	49	0	-90.1dB
Digital gain on DAW1 output			1	50
Digital gain on DAW2 output			2	51
Digital gain on DAW3 output			3	52
Digital gain on DAW4 output			4	53
Digital gain on DAW5 output			5	54
Digital gain on DAW6 output			6	55
Digital gain on DAW7 output			7	56
Digital gain on DAW8 output			8	57
Digital gain on DAW9 output			9	58
Digital gain on DAW10 output			10	59
Digital gain on DA11 output			11	60
Digital gain on DAW12 output			12	61
Digital gain on DAW13 output			13	62
Digital gain on DAW14 output			14	63
Digital gain on DAW15 output			15	64

12.2.6GainsinthematrixappliedtoaPlayDAWinput

In the following table, replace x by the input number, from 0 to 15.

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Play DAW INx gain towards analog OUTt 1	Mxr x/0	R / W	0	65 + x	0	-90.1dB
Play DAW INx gain towards analog OUTt 2	Mxr x/1		0	97 + x		-90 dB
Play DAW INx gain towards analog OUTt 3	Mxr x/2		0	129 + x		0 dB
Play DAW INx gain towards analog OUTt 4	Mxr x/3		0	161 + x		+12 dB
Play DAW INx gain towards analog OUTt 5	Mxr x/4		0	193 + x
Play DAW INx gain towards analog OUTt 6	Mxr x/5		0	225 + x
Play DAW INx gain towards analog OUTt 7	Mxr x/6		0	257 + x
Play DAW INx gain towards analog OUT 8	Mxr x/7		0	289 + x
Play DAW INx gain towards AES OUT 1 d	Mxr x/8		0	321 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/9		0	353 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/10		0	385 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/11		0	417 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/12		0	449 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/13		0	481 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/14		0	513 + x
Play DAW IN x gain towards AES OUT ch	Mxr x/15		0	545 + x
Play DAWx gain towards DAW0 record out	Mxr x/16		0	577 + x
Play DAWx gain towards DAW1 record out	Mxr x/17		0	609 + x
Play DAWx gain towards DAW2 record out	Mxr x/18		0	641 + x
Play DAWx gain towards DAW3 record out	Mxr x/19		0	673 + x
Play DAWx gain towards DAW4 record out	Mxr x/20		0	705 + x
Play DAWx gain towards DAW5 record out	Mxr x/21		0	737 + x
Play DAWx gain towards DAW6 record out	Mxr x/22		0	769 + x
Play DAWx gain towards DAW7 record out	Mxr x/23		0	801 + x
Play DAWx gain towards DAW8 record out	Mxr x/24		0	833 + x
Play DAWx gain towards DAW9 record out	Mxr x/25		0	865 + x
Play DAWx gain towards DAW10 record output	Mxr x/26		0	897 + x
Play DAWx gain towards DAW11 record output	Mxr x/27		0	929 + x
Play DAWx gain towards DAW12 record output	Mxr x/28		0	961 + x
Play DAWx gain towards DAW13 record output	Mxr x/29		0	993 + x
Play DAWx gain towards DAW14 record output	Mxr x/30		0	1025 + x
Play DAWx gain towards DAW15 record output	Mxr x/31		0	1057 + x

12.2.7 Gainsinthematrix applied to the signalfroman analog input

In the following table, replace x by the analog input number, from 0 to 7.

Description	Alsa mixer control	Read / Write	Index	NumId	Values	Gain in dB
Gain on analog IN x towards analog output 1	Mxr (x+16)/0	R / W	0	81 + x	0	-90.1dB
Gain on analog IN x towards analog output 2	Mxr (x+16)/1		0	113 + x
Gain on analog IN xx towards analog output 3	Mxr (x+16)/2		0	145 + x
Gain on analog IN x towards analog output 4	Mxr (x+16)/3		0	177 + x
Gain on analog IN x towards analog output 5	Mxr(x+16)/4		0	209 + x
Gain on analog IN x towards analog output 6	Mxr (x+16)/5		0	241 + x
Gain on analog IN x towards analog output 7	Mxr (x+16)/6		0	273 + x
Gain on analog IN x towards analog output 8	Mxr (x+16)/7		0	305 + x
Gain on analog IN x towards AES output channel 1	Mxr (x+16)/8		0	337 + x	1	-90 dB
Gain on analog IN x towards AES output channel 2	Mxr (x+16)/9		0	369 + x
Gain on analog IN x towards AES output channel 3	Mxr (x+16)/10		0	401 + x
Gain on analog IN x towards AES output channel 4	Mxr (x+16)/11		0	433 + x		0 dB
Gain on analog IN x towards AES output channel 5	Mxr (x+16)/12		0	465 + x
Gain on analog IN x towards AES output channel 6	Mxr (x+16)/13		0	497 + x		+12 dB
Gain on analog IN x towards AES output channel 7	Mxr (x+16)/14		0	529 + x
Gain on analog IN x towards AES output channel 8	Mxr (x+16)/15		0	561 + x
Gain on analog IN x towards DAW0 record output	Mxr (x+16)/16		0	593 + x
Gain on analog IN x towards DAW1 record output	Mxr (x+16)/17		0	625 + x
Gain on analog IN x towards DAW2 record output	Mxr (x+16)/18		0	657 + x
Gain on analog IN x towards DAW3 record output	Mxr (x+16)/19		0	689 + x
Gain on analog IN x towards DAW4 record output	Mxr (x+16)/20		0	721 + x
Gain on analog IN x towards DAW5 record output	Mxr (x+16)/21		0	753 + x
Gain on analog IN x towards DAW6 record output	Mxr (x+16)/22		0	785 + x
Gain on analog IN x towards DAW7 record output	Mxr (x+16)/23		0	817 + x
Gain on analog IN x towards DAW8 record output	Mxr (x+16)/24		0	849 + x
Gain on analog iIN x towards DAW9 record output	Mxr (x+16)/25		0	881 + x
Gain on analog IN x towards DAW10 record output	Mxr (x+16)/26		0	913 + x
Gain on analog IN x towards DAW11 record output	Mxr (x+16)/27		0	945 + x
Gain on analog IN x towards DAW12 record output	Mxr (x+16)/28		0	977 + x
Gain on analog IN x towards DAW13 record output	Mxr (x+16)/29		0	1009 + x
Gain on analog IN x towards DAW14 record output	Mxr (x+16)/30		0	1041 + x
Gain on analog IN x towards DAW15 record output	Mxr (x+16)/31		0	1073 + x

12.2.8Gainsinthematrixappliedtothesignalfromadigital input

In the following table, replace x by the analog input number, from 0 to 7.

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Gain on AES channel x towards analog output 1	Mxr (x+24)/0	R / W	0	89 + x	019011021	-90.1dB-90 dB0 dB+12 dB
Gain on AES channel x towards analog output 2	Mxr (x+24)/1		0	121 + x
Gain on AES channel x towards analog output 3	Mxr (x+24)/2		0	153 + x
Gain on AES channel x towards analog output 4	Mxr (x+24)/3		0	185 + x
Gain on AES channel x towards analog output 5	Mxr (x+24)4		0	217 + x
Gain on AES channel x towards analog output 6	Mxr (x+24)/5		0	249 + x
Gain on AES channel x towards analog output 7	Mxr (x+24)/6		0	281 + x
Gain on AES channel x towards analog output 8	Mxr (x+24)/7		0	313 + x
Gain on AES channel x towards AES output ch. 1	Mxr (x+24)/8		0	345 + x
Gain on AES channel x towards AES output ch. 2	Mxr (x+24)/9		0	377 + x
Gain on AES channel x towards AES output ch. 3	Mxr (x+24)/10		0	409 + x
Gain on AES channel x towards AES output ch. 4	Mxr (x+24)/11		0	441 + x
Gain on AES channel x towards AES output ch. 5	Mxr (x+24)/12		0	473 + x
Gain on AES channel x towards AES output ch. 6	Mxr (x+24)/13		0	505 + x
Gain on AES channel x towards AES output ch. 7	Mxr (x+24)/14		0	537 + x
Gain on AES channel x towards AES output ch. 8	Mxr (x+24)/15		0	569 + x
Gain on AES channel x towards DAW0 record output	Mxr (x+24)/16		0	601 + x
Gain on AES channel x towards DAW1 record output	Mxr (x+24)/17		0	633 + x
Gain on AES channel x towards DAW2 record output	Mxr (x+24)/18		0	665 + x
Gain on AES channel x towards DAW3 record output	Mxr (x+24)/19		0	697 + x
Gain on AES channel x towards DAW4 record output	Mxr (x+24)/20		0	729 + x
Gain on AES channel x towards DAW5 record output	Mxr (x+24)/21		0	761 + x
Gain on AES channel x towards DAW6 record output	Mxr (x+24)/22		0	793 + x
Gain on AES channel x towards DAW7 record output	Mxr (x+24)/23		0	825 + x
Gain on AES channel x towards DAW8 record output	Mxr (x+24)/24		0	857 + x
Gain on AES channel x towards DAW9 record output	Mxr (x+24)/25		0	889 + x
Gain on AES channel x towards DAW10 record out	Mxr (x+24)/26		0	921 + x
Gain on AES channel x towards DAW11 record out	Mxr (x+24)/27		0	953 + x
Gain on AES channel x towards DAW12 record out	Mxr (x+24)/28		0	985 + x
Gain on AES channel x towards DAW13 record out	Mxr (x+24)/29		0	1017 + x
Gain on AES channel x towards DAW14 record out	Mxr (x+24)/30		0	1049 + x
Gain on AES channel x towards DAW15 record out	Mxr (x+24)/31		0	1081 + x

13CONFIGURINGTHEALP442eAND ALP442e-MICCARDSUNDERLINUXVIAAMIXER

13.1 Diagramoftheaudioinputstowardsaudio outputchainforALP442eandALP442e-MIC

The mixer inputs and outputs are numbered 0 to 15. The mixer offers 16 mix buses, with 16 input channels per bus, and a digital gain associated to each channel in a mix.

• The DAW0 to DAW7 inputs are the 8 audio channels coming from the host machine (played by software on the host machine).
• The ANA0 to ANA3 inputs are the four analog input channels (IN1 to IN4).
• The inputs AES0 to AES3 are the four input channels of the two digital inputs AES/EBU IN1 and IN2.
• The DAW0 to DAW7 outputs are the 8 audio channels destined for the host machine (captured by software on the host machine).
• The ANA0 to ANA3 outputs are the four analog output channels (OUT1 to OUT4)
• The AES0 to AES3 outputs are the four channels of the two stereo digital outputs AES/EBU OUT1 and OUT4.

By default, the matrix gains are positioned so as to have:

DAW0 PLAY -> ANA0 OUT 1DAW1 PLAY -> ANA0 OUT 2DAW2 PLAY -> ANA0 OUT 3DAW3 PLAY -> ANA0 OUT 4DAW4 PLAY -> AES0 OUT (AES/EBU OUT1 Left)DAW5 PLAY -> AES1 OUT (AES/EBU OUT1 Right)DAW6 PLAY -> AES2 OUT (AES/EBU OUT2 Left)DAW7 PLAY -> AES3 OUT (AES/EBU OUT2 Right)

ANA1 IN -> DAW0 RecordANA2 IN -> DAW1 RecordANA3 IN -> DAW2 RecordANA4 IN -> DAW3 RecordAES0 (AES/EBU IN1 Left) -> DAW4 RecordAES1 (AES/EBU IN1 Right) -> DAW5 RecordAES2 (AES/EBU IN2 Left) -> DAW6 RecordAES3 (AES/EBU IN2 Right) -> DAW7 Record

13.2 Description of the controls for ALP442e and ALP442e-MIC

13.2.1Clock,SRCs,andphantompowerforALP442e-MIC)

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Detail
Card clock source	Clk Eff Src	R	0	289	0	Internal = Internal clock
					1	SIC (Inter card synchro)
					2	Word Clk = Wordclock in AES Syn = AES11 Sync in AES Aud 1/2 = AES3 in 1
					3	AES Aud 3/4 = AES3 in 2
					4
					5
Effective Clock value	Clk Eff	R	0	290	0	8 kHz,
					1	11.025kHz,
					2	16kHz,
					3	22.05kHz,
					4	24kHz,
Effective clock value in kHz is: "Clk Eff base" x "Clk Eff Coef".					5	32kHz,
					6	44.1kHz,
					7	48kHz
					8	64kHz
					9	88.2kHz
					10	96kHz
					11	128kHz
					12	176.4kHz
					13	192kHz
Enable / disable the SRC on the AES3 input 1	AES SRC 1/2 Disable	W	0	298	1	Disabled
Enable / disable the SRC on the AES3 input 2	AES SRC 3/4 Disable	W	0	299	0	Enabled
Authorisation to switch to a sour with lower priority	Clk Src Up	W	0	292	0	No switching
Authorisation to switch to a sour with higher priority	Clk Src Down	W	0	293	1	Switching authorised
Clock priority 0 (highest priority)	Clk P0	W	0	294	0	Internal = Internal clock
Clock priority 1	Clk P1	W	0	295	1	SIC (Inter card synchro)
Clock priority 2	Clk P2	W	0	296	2	Word Clk = Wordclock in AES Syn = AES11 Sync in AES Aud 1/2 = AES3 in 1
Clock priority 3 (lowest priority)	Clk P3	W	0	297	3	AES Aud 3/4 = AES3 in 2
					4
					5
Description	Alsa mixer control	Read / Write	Index	Numld	Value	Status
Phantom power on analog In 1	McPh1	R / W	0	304	0	48V OFF
Phantom power on analog In 2	McPh2		0	305
Phantom power on analog In 3	McPh3		0	306		48 V ON
Phantom power on analog In 4	McPh4		0	307

13.2.2 Gainson the physical inputs

Descriptionofcontrol	Alsamixer control	Read /	Index	NumId	Values	GainindBALP442eALP442e-MCALP882eALP882e-MIC
Analog gain on analog input 1	Codec Analog Capture Volume	R / W	0	300	0	Mute Mute-24.5 dB N.A-24 dB N.A.
Analog gain on analog input 2			1	301	1
					2
Analog gain on analog input 3			2	302	...	... N.A
					50	0 dB 0dB
Analog gain on analog input 4			3	303	...	... +16 dB +16 dB
					82
					...	N.A
					162	+56 dB
Digital gain on analog input 1	Ana Capture Volume	R / W	0	9	0	-90.1dB
Digital gain on analog input 2			1	10	1	-90 dB
Digital gain on analog input 3			2	11	901	0 dB
					1021	+12 dB
Digital gain on analog input 4			3	12
Digital gain on left channel of AES3 input 1	AES Capture Volume	R / W	0	13	0	-90.1dB
Digital gain on right channel of AES3 input			1	14	1	-90 dB
Digital gain on left channel of AES3 input 2			2	16	901	0 dB
					1021	+12 dB
Digital gain on right channel of AES3 input			3	16

13.2.3GainsontheapplicationDAWinputs(playfrom softwareapplications)

Description	Alsa mixer control	Read / Write	Index	NumId	Values	Gain in dB
Digital gain on Play DAW0 input	DAW Playback Volume	R / W	0	1	0	-90.1 dB
Digital gain on Play DAW1 input			1	2
Digital gain on Play DAW2 input			2	3	1	-90 dB
Digital gain on Play DAW3 input			3	4	901	0 dB
Digital gain on Play DAW4 input			4	5	1021	+12 dB
Digital gain on Play DAW5 input			5	6
Digital gain on Play DAW6 input			6	7
Digital gain on Play DAW7 input			7	8

13.2.4Gainsonthephysicaloutputs

Description	Alsa mixer control	Read / Write	Index	NumId	Values	Gain in dB
Digital gain on analog output 1	Analog Playback Volume	R / W	0	17	0	-90.1 dB
					1	-90 dB
Digital gain on analog output2			1	18	901	0 dB
					1021	+12 dB
Digital gain on analog output3			2	19
Digital gain on analog output4			3	20
Digital gain on left channel of AES3 output 1	AES Playback Volume	R / W	0	21	0	-90.1dB
					1	-90 dB
Digital gain on right channel of AES3 output 1			1	22	901	0 dB
					1021	+12 dB
Digital gain on left channel of AES3 output 2			2	23
Digital gain on right channel of AES3 output 2			3	24

13.2.5GainsontheDAWoutputs(recordingfromsoftware applications)

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Digital gain on DAW0 output	DAW Capture Volume	R / W	0	25	0	-90.1dB
Digital gain on DAW1 output			1	26
Digital gain on DAW2 output			2	27
Digital gain on DAW3 output			3	28
Digital gain on DAW4 output			4	29
Digital gain on DAW5 output			5	30
Digital gain on DAW6 output			6	31
Digital gain on DAW7 output			7	32

(*) ALP882e and ALP882e-Mic only.

13.2.6GainsinthematrixappliedtoaPlayDAWinput

In the following table, replace x by the input number, from 0 to 7.

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Play DAW INx gain towards analog OUTt 1	Mxr x/0	R / W	0	33 + x	0	-90.1dB
Play DAW INx gain towards analog OUTt 2	Mxr x/1		0	49 + x
Play DAW INx gain towards analog OUTt 3	Mxr x/2		0	65 + x
Play DAW INx gain towards analog OUTt 4	Mxr x/3		0	81+ x
Play DAW INx gain towards AES OUT 1 d	Mxr x/4		0	97+ x
Play DAW IN x gain towards AES OUT ch	Mxr x/5		0	113+ x
Play DAW IN x gain towards AES OUT ch	Mxr x/6		0	129+ x
Play DAW IN x gain towards AES OUT ch	Mxr x/7		0	145+ x
Play DAW INx gain towards DAW0 record output	Mxr x/8		0	161+ x	1	-90 dB
Play DAW INx gain towards DAW1 record output	Mxr x/9		0	177+ x	901	0 dB
Play DAW INx gain towards DAW2 record output	Mxr x/10		0	193+ x	1021	+12 dB
Play DAW INx gain towards DAW3 record output	Mxr x/11		0	209+ x
Play DAW INx gain towards DAW4 record output	Mxr x/12		0	225+ x
Play DAW INx gain towards DAW5 record output	Mxr x/13		0	241+ x
Play DAW INx gain towards DAW6 record output	Mxr x/14		0	257+ x
Play DAW INx gain towards DAW7 record output	Mxr x/15		0	273+ x

13.2.7 Gainsinthematrixappliedtothesignalfromananalog input

In the following table, replace x by the analog input number, from 0 to 3.

Description	Alsa mixer control	Read / Write	Index	NumId	Values	Gain in dB
Gain on analog IN x towards analog output 1	Mxr (x+8)/0	R / W	0	41 + x	019011021	-90.1dB-90 dB0 dB+12 dB
Gain on analog IN x towards analog output 2	Mxr (x+8)/1		0	57+ x
Gain on analog IN xx towards analog output 3	Mxr (x+8)/2		0	73+ x
Gain on analog IN x towards analog output 4	Mxr (x+8)/3		0	89+ x
Gain on analog IN x towards AES output channel 1	Mxr (x+8)/4		0	105+ x
Gain on analog IN x towards AES output channel 2	Mxr (x+8)/5		0	121+ x
Gain on analog IN x towards AES output channel 3	Mxr (x+8)/6		0	137+ x
Gain on analog IN x towards AES output channel 4	Mxr (x+8)/7		0	153+ x
Gain on analog IN x towards DAW0 record output	Mxr (x+8)/8		0	169+ x
Gain on analog IN x towards DAW1 record output	Mxr (x+8)/9		0	185+ x
Gain on analog IN x towards DAW2 record output	Mxr (x+8)/10		0	201+ x
Gain on analog IN x towards DAW3 record output	Mxr (x+8)/11		0	217+ x
Gain on analog IN x towards DAW4 record output	Mxr (x+8)/12		0	233+ x
Gain on analog IN x towards DAW5 record output	Mxr (x+8)/13		0	249+ x
Gain on analog IN x towards DAW6 record output	Mxr (x+8)/14		0	265+ x
Gain on analog IN x towards DAW7 record output	Mxr (x+8)/15		0	281+ x

13.2.8Gainsinthematrixappliedtothesignalfromadigital input

In the following table, replace x by the digital input number, from 0 to 3.

Description	Alsa mixer control	Read / Write	Index	Numld	Values	Gain in dB
Gain on AES channel x towards analog output 1	Mxr (x+12)/0	R / W	0	45+ x	019011021	-90.1dB-90 dB0 dB+12 dB
Gain on AES channel x towards analog output 2	Mxr (x+12)/1		0	61+ x
Gain on AES channel x towards analog output 3	Mxr (x+12)/2		0	77+ x
Gain on AES channel x towards analog output 4	Mxr (x+12)/3		0	93+ x
Gain on AES channel x towards AES output ch. 1	Mxr (x+12)/4		0	109+ x
Gain on AES channel x towards AES output ch. 2	Mxr (x+12)/5		0	125+ x
Gain on AES channel x towards AES output ch. 3	Mxr (x+12)/6		0	141+ x
Gain on AES channel x towards AES output ch. 4	Mxr (x+12)/7		0	157+ x
Gain on AES channel x towards DAW0 record output	Mxr (x+12)/8		0	173+ x
Gain on AES channel x towards DAW1 record output	Mxr (x+12)/9		0	189+ x
Gain on AES channel x towards DAW2 record output	Mxr (x+12)/10		0	205+ x
Gain on AES channel x towards DAW3 record output	Mxr (x+12)/11		0	221+ x
Gain on AES channel x towards DAW4 record output	Mxr (x+12)/12		0	237+ x
Gain on AES channel x towards DAW5 record output	Mxr (x+12)/13		0	253+ x
Gain on AES channel x towards DAW6 record output	Mxr (x+12)/14		0	269+ x
Gain on AES channel x towards DAW7 record output	Mxr (x+12)/15		0	285+ x

13.3 RULESTOCALCULATETHEGAINVALUES

The ALP442e and ALP882e cards are designed so that 0dFs is reached for an analog input signal of 0dBu (0.780V), and an analog gain set to 0 dB.

- Analog input gain

If G is the analog input gain in dB

Value (numid[index]) = 50+2G, with: G(dB) ∈ [-24;16], and index ∈ [1;82]

Example: G = -24dB => numid[index] = 2

Value of numid(index)With index=1102 to 1109	Gain	Max input signal for 0dBfs
0	Mute	--
1	-24.5 dB	24.5 dB
2	-24 dB	24 dB
6	-22 dB	22
14	-18 dB	18
26	-12 dB	12
42	-4 dB	4
50	0 dB	0
56	+3 dB	-3
70	+10 dB	-10
82	+16 dB	-16

- Digital input gain

If G is the digital gain value in dB

Value (numid[index]) = 901 + 10G, with: G(dB) ∈ [-90.1;12]

Example: -24dB => numid (index) = 661

Digital Gain	Value for numid(index)
-90.1	09
-12 dB	781
-6 dB	841
-3 dB	871
0 dB	901
+3 dB	931
+6 dB	961
+12 dB	1021

13.3.1 Exampleofgainsforthecalibrationofinputandoutput signallevels

Let's consider the first analog input and output.

Gains to be set for recording

		ALP442e & ALP882e		ALP442e-MIC & ALP882e-MIC
Type of gain	Numid	Value for +12dBu = 0dBfs	Value for +24 dBu = 0dBfs	Value for -50 dBu = 0dBfs	Value for -30dBu = 0dBfs
Analog input gain	1102	26	2	150	110
Digital input gain	17	901	901	901	901
Mixer gain	593	901	901	901	901
Record digital gain	1	901	901	901	901

Gains to be set for playback

Type of gain	Numid	Value for 0 dBfs=+12 dBu	Value for 0dBfs=+24dBu
Play digital gain	49	901	901
Mixer gain	65	901	901
Digital gain on analog output	33	781	901

13.3.2GPIOs

Reading the status of the GPIs and setting the status of the GPOs can be done through the Linux libgpio library.

14SPECIFICATIONS

14.1 Configuration

Bus/Format	PCI EXPRESSTM x1 / Low profile (compatible x4, x8, x16)
Dimensions	168 mm × 69 mm × 20 mm
Consumption (+3.3 V/+12 V)	1 A/0.35 A
In operation: temperature/humidity (without condensation)	0°C/+50°C • 5%/90%
Storage: temperature/humidity (without condensation)	-5°C/+70°C • 0%/95%

14.2 Inputs

	ALP442e	ALP442e-Mic	ALP882e	ALP882e-Mic
Line analog inputs	4 balanced		8 balanced
Maximum input level / impedance	+24 dBu / >10 kΩ	Line: +24 dBu / >10 kΩMic: +10 dBu /> 10 kΩ(ALP882e-MIC only)	+24 dBu / >10 kΩ	Line: +24 dBu / >10 kΩMic: +10 dBu /> 10 kΩ (ALP882e-MIC only)
Digital input (stereo)	2 AES3 stereo, 110 Ohms, with hardware SRC on each input		4 AES3 stereo, 110 Ohms, with hardware SRC on each input
Line input gains	-24 dB to +16 dB, in 0.5 dB stepsMax. sensitivity: 0 dBfs for -16 dBu
Mic input gains	-	0 dB to +56 dB, 0.5 dB stepsMax. sensitivity: 0 dBfs for -56 dBu	-	0 dB to +56 dB, in 0 dB stepsMax. sensitivity: 0 dBfs for -56 dBu
Programmable digital input gains	-90 dB to +12 dB, 0.1 dB increments
Synchronisation inputs	1 AES11, 32 kHz to 192 Khz1 Word Clock, (75 Ohms), 32 kHz to 192 Khz
GPIs	8 dry contacts

14.3 Outputs

	ALP442e & ALP442e-Mic	ALP882e & ALP882e-Mic
Line analog outputs	4 electronically balanced (can be used asymmetrically without loss of level)	8 electronically balanced (can be used asymmetrically without loss of level)
Maximum output level / impedance	+24 dBu / <100 kΩ
Digital output	4 AES3 stereo, up to 192 kHz
Programmable digital output gain	-90 dB to +12 dB, 0.1 dB increments
Clock output	1 Word Clock, (75 Ohms), 32 kHz to 192 Khz
Contacts	8 relay contacts, 0.5 A, 48 VDC

14.4Audiocharacteristics

Sampling frequency	Programmable from 8 to 192 kHz
CAN/CNA resolutions	24 bits/192 kHz
Audio formats supported	PCM: 16, 24, 32 bits, Float IEEE754

14.5 Analogperformances

Measurements taken at Fs=48 kHz, with filter on band 22 Hz-22 kHz.

Frequency response	@48 kHz, 20 Hz - 20 kHz - Inputs: +/- 0.83 dB Outputs: +/- 0.57 dB @48 kHz, 10 Hz - 20 kHz - Inputs: +/- 2.72 dB Outputs: +/- 0.57 dB
Phase shift between tracks	@10 Hz: Inputs: < 0.81° / Outputs: < -0.24° @1 kHz: Inputs: < 0.01° / Outputs: < -0.02° @20 kHz: Inputs: < 0.14° / Outputs: < -0.13°
Signal to Noise Ratio	Inputs: >115 dBA (>112 dB unweighted) Outputs: >109 dBA (>106 dB unweighted)
THD + Noise	@1 kHz +24 dBu : Inputs: <-95dB / Outputs: <-94 dB +22 dBu : Inputs: <-98dB / Outputs: <-96 dB
Crosstalk	Inputs: -128 dB @1 kHz / -107 dB @15 kHz / -105 dB @20 kHz Outputs: -127 dB @1 kHz / -112 dB @15 kHz / -108.5 dB @20 kHz
Equivalent Input Noise (E.I.N) (ALP882e-MIC)	-124 dB (A/D-D/A, G=+56 dB)

14.6Samplerateconverters(SRC)

Maximum frequency	192 kHz
Frequency ratio	1:8 to 7.5:1

14.7Connectors

Internal connectors	Inter-card synchronisation
External connectors	2 x 68-pin VHDCI connectorsOne for analog I/OsOne for Digital I/Os (AES3 I/Os + Clocks + GPIOs)

14.8 Developmentenvironment

Drivers	DirectSound/WASAPI, ASIO
Operating systems supported	Windows 10 from version 20H2, Enterprise version LTSC 1607Linux (from Linux Kernel 4.9)
Main characteristics of on-board processing	PCM playback and acquisition, Float IEEE754, direct monitoring, real time mixing, levels adjustment, panning management

15APPENDICES

15.1ALP442e&ALP442e-MICfunctionaldiagram

graph TD
    A["AES11, WordClock Inter-card sync"] --> B["Sync"]
    B --> C["ADC"]
    C --> D["16 x 16 embedded mixer"]
    E["ENA IN 1"] --> F["ADC"]
    G["ENA IN 2"] --> H["ADC"]
    I["ENA IN 3"] --> J["ADC"]
    K["ENA IN 4"] --> L["ADC"]
    M["AES IN 1"] --> N["SRC"]
    O["AES IN 2"] --> P["SRC"]
    Q["VCXC"] --> R["WordClock out"]
    S["8 GPIs"] --> T["DAC"]
    U["8 GPOs"] --> V["DAC"]
    W["PCI Express"] --> X["Tx"]
    Y["8 channels"] --> Z["8 channels"]
    AA["Play DAW1- - - - - PLAY DAW 8"] --> AB["PCI Express"]
    AC["REC DAW1- - - - - REC DAW 8"] --> AD["PCI Express"]
    AE["48V"] --> F
    AF["48V"] --> H
    AG["48V"] --> J
    AH["48V"] --> L
    AI["48V"] --> N
    AJ["48V"] --> P
    AK["48V"] --> L
    AL["48V"] --> N
    AM["48V"] --> P
    AN["48V"] --> N
    AO["48V"] --> P

Note: 48V phantom power only for ALP442e-MIC

15.2ALP882e&ALP882e-MICfunctionaldiagram

graph TD
    subgraph "32 x 32 embedded mixer"
        direction TB
        A["Sync"] --> B["ADC"]
        B --> C["AND"]
        C --> D["AND"]
        D --> E["AND"]
        E --> F["AND"]
        F --> G["AND"]
        G --> H["AND"]
        H --> I["AND"]
        I --> J["AND"]
        J --> K["AND"]
        K --> L["AND"]
        L --> M["AND"]
        M --> N["AND"]
        N --> O["AND"]
        O --> P["AND"]
        P --> Q["AND"]
        Q --> R["AND"]
        R --> S["AND"]
        S --> T["AND"]
        T --> U["AND"]
        U --> V["AND"]
        V --> W["AND"]
        W --> X["AND"]
        X --> Y["AND"]
        Y --> Z["AND"]
        Z --> AA["AND"]
        AA --> AB["AND"]
        AB --> AC["AND"]
        AC --> AD["AND"]
        AD --> AE["AND"]
        AE --> AF["AND"]
        AF --> AG["AND"]
        AG --> AH["AND"]
        AH --> AI["AND"]
        AI --> AJ["AND"]
        AJ --> AK["AND"]
        AK --> AL["AND"]
        AL --> AM["AND"]
        AM --> AN["AND"]
        AN --> AO["AND"]
        AO --> AP["AND"]
        AP --> AQ["AND"]
        AQ --> AR["AND"]
        AR --> AS["AND"]
        AS --> AT["AND"]
        AT --> AU["AND"]
        AU --> AV["AND"]
        AV --> AW["AND"]
        AW --> AX["AND"]
        AX --> AY["AND"]
        AY --> AZ["AND"]
        AZ --> BA["AND"]
        BA --> BB["AND"]
        BB --> BC["AND"]
        BC --> BD["AND"]
        BD --> BE["AND"]
        BE --> BF["AND"]
        BF --> BG["AND"]
        BG --> BH["AND"]
        BH --> BI["AND"]
        BI --> BJ["AND"]
        BJ --> BK["AND"]
        BK --> BL["AND"]
        BL --> BM["AND"]
        BM --> BN["AND"]
        BN --> BO["AND"]
        BO --> BP["AND"]
        BP --> BQ["AND"]
        BQ --> BR["AND"]
        BR --> BS["AND"]
        BS --> BT["AND"]
        BT --> BU["AND"]
        BU --> BV["AND"]
        BV --> BW["AND"]
    end

    subgraph "PCI Express"
            direction LR
            A1["48V"]
            A2["48V"]
            A3["48V"]
            A4["48V"]
            A5["48V"]
            A6["48V"]
            A7["48V"]
            A8["48V"]
            A9["48V"]
            A10["48V"]
            A11["48V"]
            A12["48V"]
            A13["48V"]
            A14["48V"]
            A15["48V"]
            A16["48V"]
            A17["48V"]
            A18["48V"]
            A19["48V"]
            A20["48V"]
            A21["48V"]
            A22["48V"]
            A23["48V"]
            A24["48V"]
            A25["48V"]
            A26["48V"]
            A27["48V"]
            A28["48V"]
            A29["48V"]
            A30["48V"]
            A31["48V"]
            A32["48V"]
            A33["48V"]
            A34["48V"]
            A35["48V"]
            A36["48V"]
            A37["48V"]
            A38["48V"]
            A39["48V"]
            A40["48V"]
            A41["48V"]
            A42["48V"]
            A43["48V"]
            A44["48V"]
            A45["48V"]
            A46["48V"]
            A47["48V"]
            A48["48V"]
            A49["48V"]
            A50["48V"]
            A51["48V"]
            A52["48V"]
            A53["48V"]
            A54["48V"]
            A55["48V"]
            A56["48V"]
            A57["48V"]
            A58["48V"]
            A59["48V"]
            A60["48V"]
            A61["48V"]
            A62["48V"]
            A63["48V"]
            A64["48V"]
            A65["48V"]
            A66["48V"]
            A67["48V"]
            A68["48V"]
            A69["48V"]
            A70["48V"]
            A71["48V"]
            A72["48V"]
            A73["48V"]
            A74["48V"]
            A75["48V"]
            A76["48V"]
            A77["48V"]
            A78["48V"]
            A79["48V"]
            A80["48V"]
            A81["48V"]
            A82["48V"]
            A83["48V"]
            A84["48V"]
            A85["48V"]
            A86["48V"]
            A87["48V"]
            A88["48V"]
            A89["48V"]
            A90["48V"]
            A91["48V"]
            A92["48V"]
            A93["48V"]
            A94["48V"]
            A95["48V"]
            A96["48V"]
            A97["48V"]
            A98["48V"]
            A99["48V"]
            B00["DAC"] --> C00["DAC"] --> D00["DAC"] --> E00["DAC"] --> F00["DAC"] --> G00["DAC"] --> H00["DAC"] --> I00["DAC"] --> J00["DAC"] --> K00["DAC"] --> L00["DAC"] --> M00["DAC"] --> N00["DAC"] --> O00["DAC"] --> P00["DAC"] --> Q00["DAC"] --> R00["DAC"] --> S00["DAC"] --> T00["DAC"] --> U00["DAC"] --> V00["DAC"] --> W00["DAC"] --> X00["DAC"] --> Y00["DAC"] --> Z00["DAC"] --> AA00["DAC"] --> AB00["DAC"] --> AC00["DAC"] --> AD00["DAC"] --> AE00["DAC"] --> AF00["DAC"] --> AG00["DAC"] --> AH00["DAC"] --> AI00["DAC"] --> AJ00["DAC"] --> AK00["DAC"] --> AL00["DAC"] --> AM00["DAC"] --> AN00["DAC"] --> AO00["DAC"] --> AP00["DAC"] --> AQ00["DAC"] --> AR00["DAC"] --> AS00["DAC"] --> AT00["DAC"] --> AU00["DAC"] --> AV00["DAC"] --> AW00["DAC"] --> AX00["DAC"] --> AY00["DAC"] --> AZ00["DAC"] --> BA00["DAC"] --> BB00["DAC"] --> BC00["DAC"] --> BD00["DAC"] --> BE00["DAC"] --> BF00["DAC"] --> BG00["DAC"] --> BH00["DAC"] --> BI00["DAC"] --> BJ00["DAC"] --> BK00["DAC"] --> BL00["DAC"] --> BM00["DAC"] --> BN00["DAC"] --> BO00["DAC"] --> BP00["DAC"] --> BQ00["DAC"] --> BR00["DAC"] --> BS00["DAC"] --> BT00["DAC"] --> BU00["DAC"] --> BV00["DAC"] --> BW00["DAC"] --> BX00["DAC"] --> BYW00["DAC"] --> BZW0D["AE OUT 1""] 
    end

Note: 48V phantom power only for ALP882e-MIC

15.3LED

TheALPcardhasfourgreenLEDs:2LEDsonthePCB(onlyvisiblewhenthePCisopen)andtwoLEDs onthebracketsillustratedinthediagrambelow.

LED 1 LED 2 Intercard sync connectors

LED	Description	Behaviour
LED1	Signalswhenthecardisinitialisedcorrectly	Constantlylit
LED2	Signalsifthecardisrunningthelastupdated firmwareorthebackupfactoryfirmware version.	Flashesevery2seconds: Thecardrunsthelastuploadedfirmwareversion (normalbehaviour).Flasheseverysecond: Thecardrunsthebackupfactoryfirmwareinstead ofthelastuploadedversionThislastfirmwareis corruptedinmemoryandhastobeappliedagain.
WCIn	Wordclock	OffwhennoWordclocksignalisdetected.FlasheswhenaWordclocksignalisdetectedbutthe cardisnotsynchronisedonitLitwhenthecardissynchronisedtotheWordclock input
InterCard sync	Intercardsynchro/cardlocator	Offwhenthecardisnotsynchronisedtoanother oneviatheintercardribboncableLitwhenthecardisslavedtoanotheroneviathe intercardsynchroribbon.Flasheswhenthebutton“cardlocator”ispressed fromtheALP-XManagerapplication.

15.4Connectorsandswitches

VHDCI 68 pins, female

J2: Connectorfordigitall/Os

VHDCI 68 pins, female.

J3: Connectorforinter-cardsynchronisation

15.5HowtousetheGPIOs

15.5.1GPIs

The eight GPIs are dry contacts, as shown on the diagram below. It is not necessary to connect a voltage to the GPIs.

GP Input GPI R602 P5V GP Input Status GND R602 P5V

When the GPI pin is not connected to the ground, the GPI status is OPEN. When the GPI X pin is connected to the ground, the GPI status is CLOSED.

15.5.2GPOs

The eight GPOs are opti-relays, as shown on the diagram below.

GPOI_CMD GPOI_COM GPOI_NO

The contact between GPO_COM and GPO-NO is made when the CLOSED command is sent. GPOs support a maximal voltage of 48VDC and a maximum current of 500 mA.

15.6CablesforALP442eandALP442e-MIC

15.6.1 CableforanalogI/Os

15.6.1.1Diagram

500±50mm 100±10mm 500±50mm ANA FILAMIC 1 ANA FILAMIC 2 ANA FILAMIC 3 ANA FILAMIC 4 XLR3P Female 1 3 2 ANA OUT 1 ANA OUT 2 ANA OUT 3 ANA OUT 4 XLR3P Male 2 3 1

15.6.1.2 Pinout

J1	Upper VHDCI 68 pins male
J2 to J9	Female XLR: analog inputs
J10 to J17	Male XLR: analog outputs

PinoutofconnectorJ1(VHDCImale)

Pin#	Signal	Pin#	Signal	Pin#	Signal
1	GND	24		47	GND
2	GND	25	GND	48	GND
3		26	GND	49	ANA IN4 -
4		27		50	ANA IN4 +
5	GND	28		51	GND
6	GND	29	GND	52	GND
7		30	GND	53	ANA OUT4 +
8		31		54	ANA OUT4 -
9	GND	32		55	GND
10	GND	33	GND	56	GND
11		34	GND	57	ANA OUT3-
12		35	GND	58	ANA OUT3 +
13	GND	36	GND	59	GND
14	GND	37	ANA IN1 -	60	GND
15		38	ANA IN1 +	61	ANA OUT2 +
16		39	GND	62	ANA OUT2 -
17	GND	40	GND	63	GND
18	GND	41	ANA IN2 -	64	GND
19		42	ANA IN2 +	65	ANA OUT1 +
20		43	GND	66	ANA OUT1 -
21	GND	44	GND	67	GND
22	GND	45	ANA IN3 -	68	GND
23		46	ANA IN3 +	-	-

15.6.2 Cablefordigital/Os

15.6.2.1Diagram

J1 500±50mm 100±10mm 35 68 34 P/N Label 500±50mm AES EBU IN 1 AES EBU IN 2 AES EBU OUT 1 AES EBU OUT 2 AES EBU SYNC IN WC IN WC OUT GPin GPOUT 50±5mm J2 XLR3P Female J3 J4 XLR3P Male J5 J6 BNC Female J7 J8 DB25P Female J9 J10

15.6.2.2 Pinout

J1 connector (lower VHDCI male)
Pin#	Signal	Pin #	Signal	Pin #	Signal	Pin #	Signal
1	WLCK OUT	18	GPO1-COM	35	WLCK IN	52	GPI 1
2	GND	19	GPO1-NO	36	GND	53	GND
3	GND	20	GPO2-COM	37	AES11-SYNC IN-	54	GPI 2
4	-	21	GPO2-NO	38	AES11-SYNC IN+	55	GND
5	-	22	GPO3-COM	39	GND	56	GPI 3
6		23	GPO3-NO	40	AES3 IN 1+	57	GND
7		24	GPO4-COM	41	AES3 IN 1-	58	GPI 4
8	GND	25	GPO4-NO	42	GND	59	GND
9		26	GPO5-COM	43	AES3 IN 2+	60	GPI 5
10		27	GPO5-NO	44	AES3 IN 2-	61	GND
11	GND	28	GPO6-COM	45	GND	62	GPI 6
12	AES3 0UT2 -	29	GPO6-NO	46		63	GND
13	AES3 0UT2 +	30	GPO7-COM	47		64	GPI 7
14	GND	31	GPO7-NO	48	GND	65	GND
15	AES3 0UT1 -	32	GPO8-COM	49		66	GPI 8
16	AES3 0UT1 +	33	GPO8-NO	50		67	GND
17	GND	34	GND	51	GND	68	GND

J9(Sub-DB25female)-GPIs
Pin#	Signal	Pin#	Signal
1	GPI 1	14	GPI5
2	GND	15	GND
3	GND	17	GPI6
4	GPI 2	18	GND
5	GND	20	GPI7
6	GND	21	GND
7	GPI3	23	GPI8
8	GND	24	GND
10	GPI4	25	GND

J10(Sub-DB25female)-GPOs
Pin#	Signal	Pin#	Signal
1	GPO1 COM	14	GPO5 COM
2	GPO1 NO	15	GPO5 NO
4	GPO2 COM	17	GPO6 COM
5	GPO2 NO	18	GPO6 NO
7	GPO3 COM	20	GPO7 COM
8	GPO3 NO	21	GPO7 NO
7	GND	23	GPO8 COM
10	GPO4 COM	24	GPO8 NO
11	GPO4 NO	25	GND

Pins that are not mentioned are connected to the ground.

J2 & J3 (Female XLR)	AES3 inputs 1 & 2	Pin 1: GNDPin 2= +Pin 3= -
J4 to J5 (Male XLR)	AES3 outputs 1 & 2
J6 (Female XLR)	AES11 SYNC
J7 (female BNC)	Wordclock IN
J8 (female BNC)	Wordclock OUT

15.7CablesforALP882eandALP882e-MIC

15.7.1 CableforanalogI/Os

15.7.1.1Diagram

500±50mm 100±10mm 35 68 34 500±50mm ANA INL/MIC 1 ANA INL/MIC 2 ANA INL/MIC 3 ANA INL/MIC 4 ANA INL/MIC 5 ANA INL/MIC 6 ANA INL/MIC 7 ANA INL/MIC 8 ANA OUT 1 ANA OUT 2 ANA OUT 3 ANA OUT 4 ANA OUT 5 ANA OUT 6 ANA OUT 7 ANA OUT 8 50±5mm J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16 J17 XLR3P Female 1 2 3 XLR3P Male 2 3 1

15.7.1.2 Pinout

J1	Upper VHDCI 68 pins male
J2 to J9	Female XLR: analog inputs
J10 to J17	Male XLR: analog outputs

PinoutofconnectorJ1(VHDCImale)

Pin#	Signal	Pin#	Signal	Pin#	Signal
1	GND	24	ANA OUT7 +	47	GND
2	GND	25	GND	48	GND
3	ANA IN8 -	26	GND	49	ANA IN4 -
4	ANA IN8 +	27	ANA OUT6 +	50	ANA IN4 +
5	GND	28	ANA OUT6 -	51	GND
6	GND	29	GND	52	GND
7	ANA IN7 -	30	GND	53	ANA OUT4 +
8	ANA IN7 +	31	ANA OUT5 -	54	ANA OUT4 -
9	GND	32	ANA OUT6 +	55	GND
10	GND	33	GND	56	GND
11	ANA IN6 -	34	GND	57	ANA OUT3-
12	ANA IN6 +	35	GND	58	ANA OUT3 +
13	GND	36	GND	59	GND
14	GND	37	ANA IN1 -	60	GND
15	ANA IN5 -	38	ANA IN1 +	61	ANA OUT2 +
16	ANA IN5 +	39	GND	62	ANA OUT2 -
17	GND	40	GND	63	GND
18	GND	41	ANA IN2 -	64	GND
19	ANA OUT8 +	42	ANA IN2 +	65	ANA OUT1 +
20	ANA OUT8 -	43	GND	66	ANA OUT1 -
21	GND	44	GND	67	GND
22	GND	45	ANA IN3 -	68	GND
23	ANA OUT7 -	46	ANA IN3 +	-	-

15.7.2 CablefordigitalI/Os

15.7.2.1Diagram

35 1 68 34 500±50mm 100±10mm P/N Label 500±50mm AES EBU IN 1 AES EBU IN 2 AES EBU IN 3 AES EBU IN 4 AES EBU/OUT 1 AES EBU/OUT 2 AES EBU/OUT 3 AES EBU/OUT 4 AES EBU/SYNC IN VIG IN VIG OUT GPIb GPOut 50±5mm XLR3P Female 1 2 3 2 XLR3P Male 2 3 1 BNC Female 14 15 14 14 14 DB25P Female

15.7.2.2 Pinout

graph TD
    subgraph J1
        A["40"] --> B["2"]
        C["41"] --> D["3"]
        E["43"] --> F["2"]
        G["44"] --> H["3"]
        I["46"] --> J["2"]
        K["47"] --> L["3"]
        M["49"] --> N["2"]
        O["50"] --> P["3"]
        Q["16"] --> R["2"]
        S["15"] --> T["3"]
        U["13"] --> V["2"]
        W["12"] --> X["3"]
        Y["10"] --> Z["2"]
        AA["9"] --> AB["3"]
        AC["7"] --> AD["2"]
        AE["6"] --> AF["3"]
        AG["38"] --> AH["2"]
        AI["37"] --> AJ["3"]
        AK["35"] --> AL["1"]
        AM["1"] --> AN["Center"]
        AO["2, 5, 6, 11, 14, 17, 34, 36, 39, 42, 45, 48, 51, 68, +69, 70"] --> AN
    end
    subgraph Shell
        AN
        ANA["Center"]
        ANB["Outside"]
        ANC["Center"]
        AND["Outside"]
    end
    J1 --> J2
    J1 --> J3
    J1 --> J4
    J1 --> J5
    J1 --> J6
    J1 --> J7
    J1 --> J8
    J1 --> J9
    J1 --> J10
    J1 --> J11
    J1 --> J12

J1

J1 connector (lower VHDCI male)
Pin#	Signal	Pin #	Signal	Pin #	Signal	Pin #	Signal
1	WLCK OUT	18	GPO1-COM	35	WLCK IN	52	GPI 1
2	GND	19	GPO1-NO	36	GND	53	GND
3	GND	20	GPO2-COM	37	AES11-SYNC IN-	54	GPI 2
4	-	21	GPO2-NO	38	AES11-SYNC IN+	55	GND
5	-	22	GPO3-COM	39	GND	56	GPI 3
6	AES3 OUT4 -	23	GPO3-NO	40	AES3 IN 1+	57	GND
7	AES3 OUT4 +	24	GPO4-COM	41	AES3 IN 1-	58	GPI 4
8	GND	25	GPO4-NO	42	GND	59	GND
9	AES3 OUT3 -	26	GPO5-COM	43	AES3 IN 2+	60	GPI 5
10	AES3 OUT3 +	27	GPO5-NO	44	AES3 IN 2-	61	GND
11	GND	28	GPO6-COM	45	GND	62	GPI 6
12	AES3 OUT2 -	29	GPO6-NO	46	AES3 IN 3+	63	GND
13	AES3 OUT2 +	30	GPO7-COM	47	AES3 IN 3-	64	GPI 7
14	GND	31	GPO7-NO	48	GND	65	GND
15	AES3 OUT1 -	32	GPO8-COM	49	AES3 IN 4+	66	GPI 8
16	AES3 OUT1 +	33	GPO8-NO	50	AES3 IN 4-	67	GND
17	GND	34	GND	51	GND	68	GND

J13(Sub-DB25female)-GPIs
Pin#	Signal	Pin#	Signal
1	GPI 1	14	GPI5
2	GND	15	GND
3	GND	17	GPI6
4	GPI 2	18	GND
5	GND	20	GPI7
6	GND	21	GND
7	GPI3	23	GPI8
8	GND	24	GND
10	GPI4	25	GND

J14(Sub-DB25female)-GPOs
Pin#	Signal	Pin#	Signal
1	GPO1 COM	14	GPO5 COM
2	GPO1 NO	15	GPO5 NO
4	GPO2 COM	17	GPO6 COM
5	GPO2 NO	18	GPO6 NO
7	GPO3 COM	20	GPO7 COM
8	GPO3 NO	21	GPO7 NO
7	GND	23	GPO8 COM
10	GPO4 COM	24	GPO8 NO
11	GPO4 NO	25	GND

Pins that are not mentioned are connected to the ground.

J2 to J5 (Female XLR)	AES3 inputs 1 to 4	Pin 1: GND / Pin 2: Pin 3: -
J6 to J9 (Male XLR)	AES3 outputs 1 to 4
J10 (Female XLR)	AES11 SYNC
J11 (female BNC)	Wordclock IN
J12 (female BNC)	Wordclock OUT

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