Omniverse Audio2Face Livelink Error on Linux


I’m trying to run Audio2Face Livelink (to Unreal Engine 5) on a Linux machine, and I kept on getting the following error.

What can I do to fix this? Is the Livelink plugin not supported on Linux? Thank.

@tsc003 can you confirm whether you’ve installed and activated the “NVIDIA Omniverse Audio2Face LiveLink” plugin per the instruction? and if you can confirm the version of A2F you are using would be a good idea as well for the devs.

We followed the instructions linked.
We are experience a crash that is related to the OmniverseLiveLink Plugin when packaging for Linux and launching the application. I believe it’s more unreal related and we may need to include a directory in the project settings.
We are using UE v5.2.1 and A2F v2023.1.1

We don’t currently support UE Livelink plugin for Linux. But the source code is provided in the UE Livelink plugin, so in theory, you could compile it yourself.

  • You could use Audio2Face’s livelink extension as a starting point and reference for creating the custom streaming extension. It can be found in a folder similar to this: C:\Users\<UserName>\AppData\Local\ov\pkg\prod-audio2face-2023.1.1\exts\omni.avatar.livelink

  • You could also use A2F->UE livelink plugin as a reference for receiving blendShape weights. It can be found in a folder simliar to this: C:\Users\<UserName>\AppData\Local\ov\pkg\prod-audio2face-2023.1.1\ue-plugins\audio2face-ue-plugins

This might also help: Compiling a plugin for a new engine version | Epic Developer Community (