I wanted to record the audio of the microphone to save it into a .wav file and I’ve setup an AudioCapture component to output the audio recorded into a Sound Submix to save it later on into a file.
The problem is that I can also hear the audio recorded out of my speakers. I’ve tried to enable the “Output to Bus Only” option in the Audio Capture component, but then it doesn’t record anything.
In a slightly different setup where the audio capture component has a post-effect bus send to a source bus, I found that setting “output to bus only” in both the audio capture component and the sound source bus the capture component is outputting to is necessary to stop mic being played back through the system audio output.
So perhaps in your case the audio is being sent to a bus by the submix, and that submix needs to have “output to bus only” enabled? Would have to see more of your project to know for sure.