Error creating GRPC channel: Unable to establish connection to server. Current state: 3

Gaming and Visualization Technologies Engines Unreal
1

Hi! I am trying to connect audio2face container and the NVIDIA ACE plugin. The container is up and running, and when using Animate from wav in Unreal, I get the following error:

LogACERuntime: [ACE SID 1] Started A2F session at https://0.0.0.0:52000
LogACEAIMSDK: Error: AIM: [2025-01-31 18:27:03.607][nvaim][error][a2x.cpp:159][audio2xCreateInstance] Error creating GRPC channel: Unable to establish connection to server. Current state: 3
LogACEA2FRemote: Warning: Failed to connect to a2f service at {URL:“https://0.0.0.0:52000”}: RPC error
LogACERuntime: Warning: [ACE SID 1] Failed sending 72724 samples to A2F

The first message implies that it is connecting to the service but then fails to create the channel to send the wav file. What is causing this?

Thanks!

2

Im having the same error:

[nvaim][error][a2x.cpp:159][audio2xCreateInstance] Error creating GRPC channel: Unable to establish connection to server. Current state: 3

is there any solution for this? the previous comment was 2 months ago already without any reply =(

4

Hi, can you please move this thread to the “# ace-digital-humans” channel on discord server?

Support for A2F has moved:
If you’d like to submit a bug, please do so through our NVIDIA Enterprise Support portal.
If you would like to join the conversation around NVIDIA ACE, please join our NVIDIA Developer Discord.