You can also use the audio mixer in the RCS software to adjust these settings: Note that you only want to mute the HDMI audio channels you are not using:
You can do this by pressing the Level Setup button and scrolling to page 4 in the menu displayed on the Monitor HDMI output or by going to Menu > Audio Input:
In most cases, this is some or all of the HDMI inputs and the USB input. The first thing you want to do when setting up a VR-1HD is to mute any audio channels you do not plan to use. The VR-1HD has multiple ways to connect audio sources:
