Okay I’m not entirely sure about voice, maybe someone else can chime in. The Pixel Streaming plugin seems to support mic input, but I have no idea if it actually works or not. If it does work then you can manipulate the input within your UE game. Otherwise it is possible to just hook a separate voice chat server to your web frontend, but it will be a bit complicated if you want the voice controls to be in-game vs on the web interface.