Can’t you mute the audio on the HDMI camera feed and then add a separate specific audio source using the audio from that HDMI as well? Then put the audio only in the scenes where you want it?I just discovered that if I have an active source that is HDMI Capture then it comes in with audio and you can't separate out the audio. So even if you're only using the video portion of the HDMI input, if it is in your source you will also get the audio from that source.