Pixel Streaming Audio Issues – Audio Not Working in Browser

Hello everyone,

I’m encountering an issue with Pixel Streaming in Unreal Engine 5 where everything works as expected except for the audio. Here’s my setup:

  1. I run the .exe file with these arguments: -AudioMixer -PixelStreamingIP=localhost -PixelStreamingPort=8888.
  2. I run the Pixel Streaming web server from the official GitHub repository.
  3. The .exe running on the server has audio, and I’ve tested both audio from Blueprints and in-scene audio (importing audio in the Content Browser and adding them to the scene), but once I connect through the browser, there’s no audio at all.

I’ve tried multiple virtual audio solutions like VB-Cable, VoiceMeeter, and others, but none seem to fix the issue. The game runs perfectly in the browser on Chrome, Firefox, and Edge, but the audio just won’t play, both local and from remote access.

Has anyone encountered this problem before or have any suggestions for fixing it? Any help would be greatly appreciated!

Thanks in advance!

I found a temporary workaround for the audio issue in Pixel Streaming, but it’s not ideal.

I added the PixelStreamingAudioComponent to the scene and set the browser (where Unreal + Pixel Streaming are running on the remote server) to use VB-Cable Output as the microphone and open the stream link (127.0.0.1). This allows the browser to capture everything from the system’s audio output and sends it to the PixelStreaming server.

To prevent a feedback loop, I disabled audio for the browser, Unreal, and Cable Output in the Audio Mixer.

There’s a slight lag between video and audio. This is a hacky solution, and a more native fix would be preferable, but I haven’t found one yet.

Hi there ksn_D!

In order to get to the bottom of this sticky situation, could you please let me know the following:

  • What version of UE are you using
  • What version of the Pixel Streaming Infrastructure are you using
  • What OS are you running Pixel Streaming on (Windows or Linux instance) (I assume Windows but better to be safe!)

Thank you

Hi @MWillWallT , thanks so much for the reply!

To answer your points:

  • Unreal version is 5.3.2
  • Pixel Streaming version is the latest from the Github repository, under 5.3 branch
  • OS is Windows 10