Appsys ProAudio

SRC-64 - Uncategorized Appsys ProAudio - Free user manual and instructions

Name: SRC-64
Brand: Appsys ProAudio
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Product Type	Digital Audio Sample Rate Converter
Brand	Appsys ProAudio
Model	SRC-64
Dimensions (W x H x D)	Approximately 220 x 44 x 160 mm (1/2 rack width, 1U height)
Weight	Approximately 0.8 kg
Power Supply	External 12V DC power adapter (center positive)
Power Consumption	Approximately 5W
Input Connectors	AES/EBU (XLR) and S/PDIF (RCA coaxial)
Output Connectors	AES/EBU (XLR) and S/PDIF (RCA coaxial)
Supported Sample Rates	32 kHz to 192 kHz (input and output)
Sample Rate Conversion Ratio	Any input to any output within range
Bit Depth	Up to 24-bit
Main Functions	Sample rate conversion between different digital audio formats; jitter reduction; signal reclocking
Indicators	Power LED, Lock LED, Sample rate LEDs for input and output
Controls	Power switch, input select button, output sample rate selector
Housing Material	Aluminum chassis with steel top cover
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity (non-condensing)	Up to 80%
Maintenance and Cleaning	Use a dry, soft cloth to clean the exterior. Do not use solvents or abrasive cleaners. Ensure unit is powered off and disconnected from power before cleaning.
Safety Precautions	Use only the supplied power adapter. Do not expose to moisture or liquid. Avoid placing near heat sources. Ensure adequate ventilation.
Spare Parts and Repairability	Contact Appsys ProAudio or authorized service centers for replacement parts. The device should be serviced by qualified personnel only.
General Information	The SRC-64 is a professional-grade sample rate converter designed for studio and live sound applications. It features dual inputs and outputs, allowing flexible routing and format conversion.

Frequently Asked Questions - SRC-64 Appsys ProAudio

What is the sample rate range of the SRC-64?

The SRC-64 supports input and output sample rates from 32 kHz up to 192 kHz, including common rates like 44.1 kHz and 48 kHz.

Can I convert from AES/EBU to S/PDIF?

Yes, the SRC-64 accepts both AES/EBU (XLR) and S/PDIF (RCA) inputs and outputs, so you can convert between these formats while also converting the sample rate if needed.

Do I need special cables for AES/EBU?

AES/EBU typically uses balanced XLR cables with 110 ohm impedance. Standard microphone cables may work for short distances, but for reliable operation, use proper digital audio cables.

How do I select the output sample rate?

Use the output sample rate selector on the front panel. The SRC-64 automatically converts the input sample rate to the selected output rate.

What does the Lock LED indicate?

The Lock LED indicates that the SRC-64 has successfully locked onto the incoming digital audio signal. If it is off, there may be no signal or an incompatible format.

Can I use the SRC-64 to reduce jitter?

Yes, the SRC-64 reclocks the digital signal, which can reduce jitter and improve audio quality. It acts as a digital reclocking device.

Is the SRC-64 rack-mountable?

The SRC-64 is half-rack width and 1U height. Optional rack ears may be available to mount two units side-by-side in a standard 19-inch rack.

What power adapter does it use?

It uses an external 12V DC power adapter (center positive) with a 2.1mm barrel jack. A suitable adapter is included with the unit.

Can I connect it directly to my computer?

The SRC-64 does not have USB or Thunderbolt connectivity. It is a standalone converter that connects between digital audio devices via AES/EBU or S/PDIF interfaces.

How do I update the firmware?

The SRC-64 does not have user-updatable firmware. Contact Appsys ProAudio for any firmware updates or technical support.

User questions about SRC-64 Appsys ProAudio

0 question about this device. Answer the ones you know or ask your own.

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USER MANUAL SRC-64 Appsys ProAudio

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3D rendering of a green printed circuit board with various integrated circuits and connectors (no visible text or symbols)

SRC·64

Asynchronous Sample Rate Converter

Add-on Module for MVR-64

User's Manual

((en))

1. GENERAL....3

1.1 Features 3
1.2. Box Contents 4
1.3. Conventions used in this manual 4

2. INSTALLATION 5

2.1. Multiverter Firmware Check 5
2.2. Hardware Installation 6

3. OPERATION 8

3.1. General 8
3.2. Select the async input....8
3.3. Select the async output....9
3.4. Select the async clock source 10
3.5.ASRC Status Display 10

4. CONFIGURATION EXAMPLES 12

4.1. Typical Setups 12

5. MAINTENANCE 14

5.1.ASRC selfiest 14
5.2. Determining ASRC Firmware|Hardware version 14
5.3.ASRC Firmware Upgrade 14

6. SPECIFICATIONS....16

7. APPENDIX 17

7.1. Warranty 17
7.2. Manufacturer contact 17
7.3. Recycling 17
7.4. Document Revision History 17
7.5 About this document....17

1. GENERAL

1.1 Features

The SRC-64 add-on module adds the capability of asynchronous sample rate conversion to your multiverter. Designed as internal add-on module, it leaves the "Extension" port available to other break-out boxes.

(Note: The module is called "ASRC" in this manual for clarity).

It features highest analog performance |THD+N-134dB typ.1, 64-channel, bi-directional conversion between any interfaces supported by the multiverter plus a number of special modes for maximum flexibility.

The ASRC can be assigned to any input interface and also any output of the multiverter, giving a true bi-directional conversion between both clock domains:

Appsys ProAudio SRC-64 - Features - 1

flowchart

graph LR
    A["Async Inputs"] --> B["ASRC In"]
    B --> C["Multiverter Routing Matrix Core"]
    C --> D["ASRC Out"]
    D --> E["Async Outputs"]
    F["Sync Inputs"] --> C
    G["Sync Outputs"] --> C
    style C fill:#000,stroke:#fff,color:#fff
    note right of C: "Asynchronous clock path"
    note right of E: "Async Outputs"

Appsys ProAudio SRC-64 - Features - 2

Asynchronous clock domain („Async clock“). Clock can be taken from async input, or BNC, or generated internally.

Appsys ProAudio SRC-64 - Features - 3

Main clock domain. Clock is taken from selected multiverter clock source

■The ASRC is inserted (by software) between the selected input and the rest of the multiverter. The input can run independently, and the ASRC takes care of matching the data to the main clock of the multiverter.
■For the output, the ASRC can be inserted between the main clock of the multiverter and the selected output. The data is then converted to match the ASRC's asynchronous clock ("async clock") and sample rate before it is sent out.
■ Existing multiverter routing capabilities are fully preserved.

■Special modes allow the use of two MADl or AES50 ports together, to send and receive all 64 channels at 96 kHz (48ch for AES50). Conversions between MADl 64ch @96k => MADl 64ch @48k or vice versa - using two MADl ports for the 96k part and one for the 48k part - are also supported.

1.2. Box Contents

■1 SRC-64 PCB Module
■2 Screws M3×20 T10
■2 Spacers
■This manual

1.3. Conventions used in this manual

■A button on the front of the device is shown like this: Sel
■The encoder can be pushed. This is shown as 0K
■ A particular LED on the front of the device is shown like this: ✦ WCLK
■ Text indicated on the seven-segment display is shown as 02

Appsys ProAudio SRC-64 - Conventions used in this manual - 1

A section marked with a warning sign mark tells you that the information is particularly important to avoid damage or malfunction.

Appsys ProAudio SRC-64 - Conventions used in this manual - 2

Filled circles with an exclamation mark indicates an action that must be performed | "Required"

Appsys ProAudio SRC-64 - Conventions used in this manual - 3

A section marked with a prohibited sign tells you that the action indicated is prohibited ("Prohibited")

Appsys ProAudio SRC-64 - Conventions used in this manual - 4

A section marked with a "information" icon indicates a useful tip.

2. INSTALLATION

2.1. Multiverter Firmware Check

Appsys ProAudio SRC-64 - Multiverter Firmware Check - 1

The multiverter requires at least firmware 2.0 for the SRC to work.

Please check and update if required |see below|.

■ Check the multiverters' firmware version: Press Recall move to Function press OK move to 12 press OK move to AD
■ If the seven-segment display shows 02 or higher, your firmware is already capable of addressing the ASRC, and you can proceed with the next section [2.2 Hardware Installation].
If 01 is shown, a firmware update is required. Download the firmware update from our website and follow the instructions in the README.TXT file contained in the package.

2.2. Hardware Installation

Appsys ProAudio SRC-64 - Hardware Installation - 1

CAUTION: To prevent electric shock, remove all mains power plugs from the multiverter before opening!

Appsys ProAudio SRC-64 - Hardware Installation - 2

ATTENTION: Static Sensitive Devices Observe Precautions for Handling!

■Remove the two screws at the rear of the multiverter's top cover |Torx T10):

Appsys ProAudio SRC-64 - Hardware Installation - 3

natural_image

Pure architectural floor plan lines without any text, numbers, or symbols

■Flip the multiverte to detach the top cover. Disconnect the cover's ground connection at the base.

■Remove the indicated two screws from the multiverters main board:

Appsys ProAudio SRC-64 - Hardware Installation - 4

natural_image

Technical diagram of an internal electronic device with labeled ports and connectors (no readable text or symbols)

■Place the supplied spacers on top of the holes, and carefully plug the ASRC into the main board.
■Insert the supplied screws through the ASRC holes and the spacers, then fasten them.
■Re-connect the covers ground connection to the base.
■Slide the top cover into the front panel slit, then close the lid and mount the cover using the two black screws.

3. OPERATION

3.1. General

The ASRC is configured and enabled disabled through the "Clock" menu in a few simple steps, described below.

The general sequence is:

1) Select the async input
2) Select the async output
3| Select the async clock (the clock source for async input+output)
4) Configure the routing matrix (same as without ASRC)

You can always go back to the previous step by pushing the Back button.

Appsys ProAudio SRC-64 - General - 1

See chapter "4. Configuration Examples" for typical setups

3.2. Select the async input

This selects the input interface whose data is received at its own asynchronous clock and sample rate, and is then converted to the multiverter's main clock and sample rate.

■Push the Set button in the "Clock" menu.
■ Navigate the cursor to the ASRC LED and push OK to confirm. The seven-segment display shows in to indicate the input selection mode.
■You can now select the appropriate input rows). The example shows how to select "MAD|optical" as asynchronous input:

Appsys ProAudio SRC-64 - Select the async input - 1

text_image

Routing ADAT MADI optical MADI coaxial MADI TP AES50 Dante/AES67 Extension AD MO MC MT AE DA EX Inputs Set Outputs

Note: For some configurations it is possible to select two rows at once. This is used if you want to concatenate the channels from two inputs to make use of all

64 channels at 96kHz (48ch with AES50), or 32ch at 192kHz.

■When ready, push OK to confirm.

Appsys ProAudio SRC-64 - Select the async input - 2

If you need only asynchronous outputs, select "X" for the inputs. This disables the receive part of the ASRC, and all inputs run now on the main clock.

3.3. Select the async output

This selects the output interface whose data is converted from the multiverter's main clock sample rate to the async clock on output.

Appsys ProAudio SRC-64 - Select the async output - 1

Some interfaces (AES50, Dante|AES67) do not allow different receive and transmit clocks. When such an interface is selected as input, the output runs automatically at the same clock and cannot be chosen separately.

■Assign the input as described. When this is finished, the seven-segment display shows 0u to indicate the output selection mode.
■Select the appropriate output column[s]. The example shows how to select 'MADl optical' as asynchronous output:

Appsys ProAudio SRC-64 - Select the async output - 2

text_image

Routing ADAT MADI optical MADI coaxial MADI TP AES50 Dante/AES67 Extension AD MO MC MT AE DA EX Inputs Set Outputs

■ Note: For some configurations it is possible to select two rows at once. This is used if you want to concatenate two outputs together to make use of all 64 channels at 96 kHz |48ch with AES50|, or 32ch at 192 kHz. Selecting "X" disables the ASRC for the output direction.

Appsys ProAudio SRC-64 - Select the async output - 3

If you need only asynchronous inputs, select "X" for the outputs. Transmitted data is then output at the multiverter's main clock sampling rate (no samplerate conversion happens for transmit data).

If no async input and no async output is selected [both "X"], the ASRC function is disabled and the ASRC is turned off.

3.4. Select the async clock source

This selects the source for the asynchronous clock (the clock which is used for the selected async inputs and outputs).

Depending on the async interfaces selected, not all interfaces can be used as source for the async clock. Usually, it's possible to select a | the async input as clock source, b | the BNC wordclock input, or c) an internally generated clock.

■ The seven-segment display shows RS to indicate the "async" clock selection mode, and the *ASRC LED shows yellow.
■ Navigate the cursor to the desired clock source and push OK to confirm.
■Depending on the clock source, the multiverter may ask you now to choose the SMUX mode{how single-speed data should be interpreted} or the samplerate (if you are using an internal clock). Push OK to confirm.

3.5. ASRC Status Display

The status LEDs for "Routing", "Clock" and "Monitor" show yellow instead of green to indicate that the respective function makes use of the ASRC.

■ When the ASRC is active, the ✉ASRC LED is lit. Yellow color indicates that the selected input clock is valid, while red color indicates that the input clock is missing or invalid.
■The ASRC clock source and samplerate are shown in yellow if the clock is valid, otherwise in red.
In the routing matrix, connections using the ASRC are displayed yellow in contrast to the normal green when the selected conversion involves the use of the ASRC. If there is any condition which prevents the data from being converted (i.e. missing input data or clock) the respective connection is shown in red.

In the "Monitor" section, the selected input is displayed in yellow (in contrast to the normal green) when the selected input runs through the ASRC.

4. CONFIGURATION EXAMPLES

The examples below show typical conversion setups with their configuration of the ASRC inputs, outputs, possible async clock sources and typical routings.

Appsys ProAudio SRC-64 - CONFIGURATION EXAMPLES - 1

Although the "Routing" matrix examples show only conversions involving the ASRC, more conversions can run at the same time:

■An arbitrary number of additional conversions within the main clock domain can run in parallel.

■Any ASRCed input can additionally be routed to an arbitrary number of outputs in the main clock domain.

4.1. Typical Setups

Setup<=> bidirectional=> unidirectional

Step 1:ASRC input'Which input comesasync and should go through the ASRC?'

Step 2:ASRC output'Which output should run at the ASRC samplerate?'

Step 3:ASRC clock source'From where should the ASRC take its clock?'

Step 4:Routing'Which input should go to which output?'You can add additional routings as required!

AES50 48ch/96kHz<=>Dante 48ch/48kHzUse 'MT' port in AES50 mode, see multiverter Manual

AEMTWCLKINT

MAD|optical32ch/96kHz<=>Dante 32ch/48kHz

MOWCLKINT

MAD|optical+MAD| coaxial64ch/96kHz<=>Dante 64ch/48kHz

MOMCWCLKINT

MAD|optical+MAD|coaxial64ch/96kHz=>MAD|optical64ch/48kHz

WCLKINT

MAD|optical64ch/48kHz=>MAD|optical+MAD|coaxial64ch/96kHz

WCLKINT

MAD|opticalat any samplerate=>anything else*at main samplerate*|All outputs shown

WCLK

Any input*at main samplerate=>Dante48kHz*|ADAT shown

INT

Any input*at main samplerate=>MAD|optical48kHz*|ADAT shown

WCLKINT

ASRC disabled

any any

5. MAINTENANCE

5.1.ASRC selftest

If there is any doubt on the correct operation of the ASRC, it can easily be checked by running the ASRC selftest. The selftest works by passing an internally generated sine wave forward and back through the ASRC (running two conversions, from 96 kHz => 88.2 kHz => 96 kHz) on all 64 channels.

■ To enter ASRC selftest mode: Press Recall move to Function move to 11 press OK turn the encoder until the seven-segment display shows 'ASRC selftest' and press OK.

■The resulting data is output on the headphones where it can be verified by listening to it. The ASRC works correctly if a clean, non-distorted 1000Hz sine tone can be heard on all channels. Use *Ch to listen to the appropriate channel. The output volume can be adjusted using *Vol.

■The resulting data is also output on MAD optical channels 1-32 and MAD coaxial channels 33-64 as two 96kHz/32ch streams, clocked by the internal clock of the multiverter. You can use any signal meter to check the result; the output level should be -20dB on all channels.

■ To exit ASRC selftest mode, press the Back button.

5.2. Determining ASRC Firmware/Hardware version

To check the firmware and hardware version of the ASRC module: Press Recall move to Function press OK move to 12 press OK

■Move the cursor to - ✱ EX to show the ASRC Firmware Major Version number - ✱ Ch to show the ASRC Firmware Minor Version number - ✱ Vol to show the ASRC Hardware Version in the seven-segment display.

5.3. ASRC Firmware Upgrade

Although seldom required, the ASRC firmware itself can be upgraded. This is done similar to the multiverter upgrade, with the difference that the USB plug has to be connected directly to the ASRC (not on the multiverter).

Appsys ProAudio SRC-64 - ASRC Firmware Upgrade - 1

RISK OF ELECTRIC SHOCK:

It is strongly advised to power the Multiverter from the DC source

(9..24V) during upgrade.

When powering via AC mains, it is possible to touch live parts inside during the upgrade! Only qualified personnel should do this, obeying the safety rules when working with live mains voltage.

■The ASRC module must be mounted within the multiverter during update (the multiverter supplies power to it).
■The cover of the multiverter must remain open throughout the upgrade process to allow plugging of the USB cable into the ASRC's USB jack.
■Follow the instructions in the README.TXT file of the firmware update.

SPECIFICATIONS

Parameter Value
Dimensions 115x94x2	7 mm \| BxHxD
Weight 65 g
Operating temperature	0..+70°C, non-condensing
Storage temperature	40..+85°C, non-condensing
Power consumption 7	W max.
Channel count Up to 6	4 per direction in x1 modes {44.1 / 48 kHz}
	Up to 64 per interface in x2 modes {88.2 / 96 kHz}
	Up to 32 per interface in x4 modes {176.4 / 192 kHz}
Sample rates Arbitrary	sample rates between 32kHz and 192kHz
Analog performance T	HD+N..-133 dB typ., -120dB max.Dynamic range [A-weighted, 20 Hz to 20 kHz]: 139 dB
Latency For up-sampling conversions: tls = 16ifs_in + 32ifs_in
	fs_in / kHz t / ms
	44.1	1.09
	48	1.03
	88.2	0.54
	96	0.5
	176.2	0.27
	For down-sampling conversions: tls = 16ifs_in + \|32ifs_in\|*(ifs_inifs_out)
	fs_in / kHz	fs_out / kHz	t / ms	176.4	fs_in / kHz	is_out / kHz
	48	44.1 1.06			44.1 0.82
	88.2	44.1 0.91			48	0.76
		48	0.84		96	88.2 0.45
	96	44.1 0.89			192 44.1 48	0.81
		48	0.83			0.75
		88.2 0.53				88.2 0.45
						96
						176.4

7. APPENDIX

7.1. Warranty

We offer a full two (2) year warranty from the date of purchase. Within this period, we repair or exchange your device free of charge in case of any defect*. If you experience any problems, please contact us first. We try hard to solve your problem as soon as possible, even after the warranty period.

* Not covered by the warranty are any damages resulting out of improper use, willful damage, normal wear-out (especially of the connectors) or connection with incompatible devices.

7.2. Manufacturer contact

Appsys ProAudio

Rolf Eichenseher

Bullingerstr. 63 / BK241

CH-8004 Zürich

Switzerland

www.appsys.ch

info @appsys.ch

Phone: +41 43 537 28 51

Mobile: +41 76 747 07 42

7.3. Recycling

Appsys ProAudio SRC-64 - Recycling - 1

According to EU directive 2002/96/EU, electronic devices with a crossed-out dustbin may not be disposed into normal domestic waste.

Please return the products back for environment-friendly recycling, we'll refund you the shipping fees.

7.4. Document Revision History

2: Layout improved

1: Initial release

7.5. About this document

All trademarks mentioned in this document are property of the respective owners. All information provided here is subject to change without prior notice.

Table of contents Click a title to access it

SRC·64
Table of Contents
GENERAL....3
INSTALLATION 5
OPERATION 8
CONFIGURATION EXAMPLES 12
MAINTENANCE 14
SPECIFICATIONS....16
APPENDIX 17
GENERAL
Features
Box Contents
Conventions used in this manual
INSTALLATION
Multiverter Firmware Check
Hardware Installation
OPERATION
General
Select the async input
Select the async output
Select the async clock source
ASRC Status Display
CONFIGURATION EXAMPLES
MAINTENANCE
5.1.ASRC selftest
Determining ASRC Firmware/Hardware version
ASRC Firmware Upgrade
RISK OF ELECTRIC SHOCK:
APPENDIX
Warranty
Manufacturer contact
Recycling
Document Revision History
About this document

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Product information

Brand : Appsys ProAudio

Model : SRC-64

Category : Uncategorized

SRC-64 - Uncategorized Appsys ProAudio - Free user manual and instructions

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Frequently Asked Questions - SRC-64 Appsys ProAudio

User questions about SRC-64 Appsys ProAudio

USER MANUAL SRC-64 Appsys ProAudio

SRC·64

Table of Contents

1. GENERAL....3

2. INSTALLATION 5

3. OPERATION 8

4. CONFIGURATION EXAMPLES 12

5. MAINTENANCE 14

6. SPECIFICATIONS....16

7. APPENDIX 17

1. GENERAL

1.1 Features

1.2. Box Contents

1.3. Conventions used in this manual

2. INSTALLATION

2.1. Multiverter Firmware Check

2.2. Hardware Installation

3. OPERATION

3.1. General

3.2. Select the async input

3.3. Select the async output

3.4. Select the async clock source

3.5. ASRC Status Display

4. CONFIGURATION EXAMPLES

5. MAINTENANCE

5.1.ASRC selftest

5.2. Determining ASRC Firmware/Hardware version

5.3. ASRC Firmware Upgrade

RISK OF ELECTRIC SHOCK:

7. APPENDIX

7.1. Warranty

7.2. Manufacturer contact

7.3. Recycling

7.4. Document Revision History

7.5. About this document

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