vMix supports three independent stereo audio mixes or buses called Master (or M), A and B.
The output of this audio mixes can also be independently selected for the Recording, Stream and External Output as described below.
The Master mix is enabled at all times however, the A and B buses will only be enabled if
To enable the A or B buses, do one of the following in Settings -> Audio Outputs
1. Set A or B to Enabled
2. Set A or B to a free channel on an audio device (such an ASIO audio interface)
Master: 2 Channel Master mix
BusA: 2 Channel A mix
BusB: 2 Channel B mix
MA: 2 Channel Master + 2 Channel A
MAB: 2 Channel Master + 2 Channel A + 2 Channel B
Select the audio mix from the dropdown box next to Audio in Recording Setup
NOTE: Only the AVI video format and the WAV File Record options supports more than 2 channels, if a 4 or 6 channel option is selected here for other formats
then only the first 2 channels will be included.
Select the audio mix from the Channels dropdown box in Streaming Quality Settings
Select the audio mix from the Audio Channels dropdown box in Settings -> External Output
AJA and Blackmagic support 2, 4 and 6 channel output. When embedding up to 6 channels in SDI, the remaining
10 channels will be left silent.