Digigram ALP222e-Mic Bedienungsanleitung

User Manual – ALP222e & ALP222e-Mic

User Manual

ALP222e &

ALP222e-Mic

Professional stereo sound cards

May 2023

User Manual – ALP222e & ALP222e-Mic

TABLE OF CONTENTS

1 INTRODUCTION 4

2 IMPORTANT NOTICE 5

3 BOX CONTENTS 6

4 GENERAL CHARACTERISTICS 7

4.1 Main hardware characteristics 7

4.2 Main software characteristics 7

4.3 Routing audio streams in the card 7

5 REQUIRED CONFIGURATION 9

5.1 Required hardware conﬁguration 9

5.2 Necessary software conﬁguration under Windows 11

5.3 Necessary software conﬁguration under Linux 11

6 HARDWARE INSTALLATION 12

6.1 Preparing the card 12

6.2 Installing the card 12

6.3 State of internal LED 12

7 SOFTWARE INSTALLATION UNDER WINDOWS 13

7.1 Very first installation 13

7.2 Updating the driver version 15

7.3 Updating the ﬁrmware 15

7.4 Verifying the card installation 15

7.5 Adjusting the internal latency of the card 18

7.6 Replacing a card 19

7.7 Changing the order of installed cards 19

8 UNINSTALLING THE DRIVER UNDER WINDOWS 21

9 CONFIGURING THE CARD UNDER WINDOWS VIA THE ALP-X MANAGER APPLICATION 22

9.1 Sampling clock management 23

9.2 Managing input and output levels 24

9.3 Managing the routing and mixing of input signals 28

9.4 Display of GPIOs and control of GPOs 31

9.5 Creating, saving and loading setting sessions 32

9.6 Firmware update procedure 32

9.7 Keyboard shortcuts 34

10 ASIO CONTROL PANEL for Windows 35

11 SOFTWARE INSTALLATION UNDER LINUX 37

11.1 Automatic installation 37

11.2 Building and installing the driver manually 37

12 CONFIGURING UNDER LINUX VIA AMIXER 38

12.1 Diagram of the inputs towards outputs chain 38

12.2 Description of controls 39

12.3 Setting the parameters from amixer 45

13 SPECIFICATIONS 59

User Manual – ALP222e & ALP222e-Mic

13.1 Conﬁguration 59

13.2 Inputs 60

13.3 Outputs 61

13.4 Audio characteristics 62

13.5 Analog performances 62

13.6 Sample rate converter performance (SRC) 62

13.7 Connectors 63

13.8 Development environment 63

14 APPENDICES 64

14.1 ALP222e functional diagram 64

14.2 LED 65

14.3 Connectors and switches 66

14.4 Breakout cable diagram 67

14.5 Pinout of the breakout cable connector 68

14.6 How to use GPI’s and GPO’s 70

User Manual – ALP222e & ALP222e-Mic

1 INTRODUCTION

This document describes the installation and use of the PCI Express DIGIGRAM ALP222e &

ALP222e-Mic sound cards under Windows and Linux.

These two stereo cards are part of the ALP-X professional sound cards range, which also includes

multi-channel cards (4, 8 channels).

No part of this manual may be reproduced without the prior consent of Digigram. This reservation includes

photocopying, translating and/or reformatting the information contained in this manual.

Everything possible has been done to ensure the greatest accuracy, however Diagram cannot be held liable

for any error or omission and reserves the right to make modiﬁcations and improvements without prior

notice.

Digigram and the Digigram logo, and ALP222e are trademarks or brand names of Digigram Digital. All other

marks are owned by their respective companies.

User Manual – ALP222e & ALP222e-Mic

2 IMPORTANT NOTICE

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.

Given the shortened length of the PCI EXPRESSTM connector and the resulting lack of

mechanical stability, we strongly advise against transporting the cards installed in a

computer, unless its chassis or case has a device for holding the card ﬁrmly in place to avoid

material damage.

User Manual – ALP222e & ALP222e-Mic

3 BOX CONTENTS

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

The box contains:

●an ALP222e or ALP222e-Mic sound card equipped with a standard height bracket (full

height: 120 mm),

●a low-proﬁle bracket (79.2 mm) that can be ﬁtted instead of the full-height bracket,

The breakout cable that bears the XLR and BNC connectors is available as an option.

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

To download the most recent card driver, please visit the digigram website at:

www.digigram.com/support/drivers-ﬁrmware-downloads/

User Manual – ALP222e & ALP222e-Mic

4 GENERAL CHARACTERISTICS

ALP222e and ALP222e-Mic are PCI EXPRESSTM x1 sound cards. They can be inserted into and

therefore operate in PCIe® x1, x2, x4, x8 or x16 slots.

4.1 Main hardware characteristics

●2 balanced analog inputs (can be used unbalanced) with software-adjustable analog gain

and a maximum input level of +24 dBu.

Mic/Line level selection and switchable 48V phantom power on ALP222e-Mic.

●2 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).

●1 stereo AES3 digital input, 32 kHz to 192 kHz, with high quality hardware sample rate

converter (SRC).

●1 AES11 synchronisation input (up to 192 kHz)

●1 AES3 digital stereo output (up to 192 kHz)

●1 mini jack stereo headphone output, which replicates the analog outputs.

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

●2 GPI dry contacts and 2 GPO relays

●Inter-card synchronisation

4.2 Main software characteristics

●Low latency multi-card drivers

●Wasapi/DirectSound and ASIO application programming interfaces under Windows, and Alsa

and libgpio for Linux

●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

- frequency of the fallback internal clock

- input and output gains, phantom power (ALP222e-Mic), RMS VU-meters with peak-meters

- routing of inputs to outputs

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

4.3 Routing audio streams in the card

The ALP card incorporates an on-board mixer in an FPGA component. This is a mixer with 8 mono

inputs (4 stereo) and 8 mono outputs (4 stereo).

The mixer captures the 4 physical input channels of the card (2 analog channels and 2 AES3

channels) and the 4 channels of the playback devices.

The mixer restores 8 audio channels, respectively to the 4 physical outputs of the card (2 analog

channels and 2 AES3 channels) and the 4 recording device channels.

The mixer can therefore be conﬁgured to perform the mixing and the routing of the 8 input

channels to the 8 output channels (8 mix sums).

User Manual – ALP222e & ALP222e-Mic

Principle of the ALP222e on-board mixer

Note: the stereo headphone output replicates the analog outputs.

User Manual – ALP222e & ALP222e-Mic

5 REQUIRED CONFIGURATION

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 EXPRESSTM (PCIe®) x1, x2, 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.

The sleep mode for the PCIe bus must be disabled.

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

Select Never” for the option “Put the computer to sleep”.

On the same window, click on “Additional power settings”.

Click on “Change plan settings” in

front of “Balanced

(recommended)”

User Manual – ALP222e & ALP222e-Mic

Select “Change advanced power

settings”.

Select “PCI Express”, “Link State

Power Management”, and select

“Oﬀ” for the setting.

Click on Ok to validate

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