ALP-AES67 – Ravenna, SMPTE ST-2110 PCIe sound card


Digigram’s newest addition to the ALP-X range of audio interface redefines versatility and opens new possibilities: ALP-AES67 works with SMPTE ST-2110 and Ravenna for an enlarged scope of applications where audio is at stake. It features a low-profile form-factor that accommodates most PCs and servers. ALP-AES67 also features a fanless design to save on consumption and increase sustainability. 

The card’s connectivity, combined with 64 channels of playback and 64 recording channels to/from an AES-67, Ravenna or SMPTE ST-2110 network, opens new possibilities to work under a larger range of audio protocols and deploy broader networks.  

Now a classic with Digigram audio interfaces, ALP-AES67 operates under Windows or Linux environments. Built on the same reliable, robust and stable architecture as all ALP cards, ALP-AES67 guarantees sub-millisecond round trip latency and seamlessly integrates AoIP networks.  Used with ALP-X Manager, Digigram’s unified control panel for the whole ALP range, ALP-AES67 works wonders with applications where critical audio is paramount :  in broadcast, public safety, medical, and transportation.


Drivers for Windows
and Linux

64 playback channels
64 recording channels

Switching ports mode
Redundant ports mode


Low profile PCIe
Fanless design

Compatibility with AES67, Ravenna & SMPTE ST2110-30

4 Eth ports for redundancy (ST 2022-07) And switching

Management via network: WEB GUI, Aneman MTDiscovery NMOS is=04 & is=05

Low Profile
2 Eth ports
Low Profile
4 Eth ports
Full-height Profile
4 Eth ports


Form Factor

Low profile PCIe

Full-height PCIe (with the provided additional full-height bracket)


L: 168 mm x H: 69 mm x l: 20 mm
L: 6.6 inch; H: 2.7 inch; l: 0.8 inch

L: 168 mm x H: 99 mm x l: 20 mm
L: 6.6 inch; H: 3.9 inch; l: 0.8 inch

Expansion Bus
PCI Express TM (PCIe TM) x1 (x2, x4, x8, x16 compatible)

Control panel

Digigram ALP-X ASIO Settings (Windows)
Asio Control Panel: up to 8 ALP-X cards
Select I/Os used through Asio
(others can be used through Wasapi)

Digigram ALP-X Manager (Windows)
One unified control panel for the whole ALP-X range
Manages up to 8 ALP-X cards
Vu-meters, clock frequency
Firmware update



Supported OS
Windows (as of Windows 10 20H2, Server 2019)


  • Ubuntu: (ver. 20.04 – kernel 5.15, ver. 22.04 – kernel 6.5)
  • Debian 11 – kernel 5.10
  • Debian 12 – kernel 6.1
  • RHEL 9 kernel 5.14


Windows: Asio, Wasapi/DirectSound

Linux: Alsa

One Driver Package
Multi-application and multi-card
API available to access the parameters


Switch mode (the 4 ports are identical)Network connectivity

  • Configuration with two network ports

2 x Gbps Eth ports that can be used in redundancy mode (Pri, Sec), or in switching mode (Pri, Switch)

  • Configuration with four network ports

4 Eth ports on the full-height bracket, or 2 Eth ports on each low-profile bracket

    • Switch mode (the 4 ports are identical)
    • ST 2022-7 mode: 2 pairs of redundant ports

Input and output channels

  • 64 x 64 channels at 44.1kHz and 48 kHz
  • 32 x 32 channels at 88.2 kHz and 96 kHz
  • 16 x 16 channels at 176.4 kHz and 192 kHz

Audio flows

  • Maximum 64 input and 64 output streams


  • Up to 2000 samples per channel (41.7ms at 48 kHz)

AoIP compatibility

  • AES67, Ravenna
  • SMPTE ST 2110-30 Level A,B, C
  • SMPTE ST 2022-7 (Class A,B,C,D)
  • SAP for streams announcement for compatibility with Dante products set to AES67 mode

Sample format

  • PCM 16, 24, 32 bits


  • WEB GUI, Aneman & MTDiscovery (Merging Technologies)
  • NMOS IS=04 & IS=05

(Discovery & Registration, Connection management)


Sound cards

Which Linux Distribution are supported by ALP sound cards ?

ALP cards are supported under the following Linux distributions, from the mentioned versions:

  • Ubuntu:
       ver. 20.04 - kernel 5.15
       ver. 22.04 - kernel 6.5
  • Debian 11 - kernel 5.10
  • Debian 12 - kernel 6.1
  • RHEL 9 kernel 5.14

In case you need to run the driver under another Linux distribution, please contact Digigram to get
the source code. If  you experience issues for compiling / running the driver on your Linux distribution, we
propose a service to provide you with the appropriate driver; please contact Digigram.

My sound card is not detected by Windows

Make sure that you downloaded the lasted driver on our website. Indeed, from time to time we have to make component updates that require a new driver.