Audio Outputs allows up to four independently controllable audio outputs to be configured.
If both Master Output and Headphones are set to the same device, Headphones will take priority.
Master Output
Select the output to send the Master audio mix to. This is the default audio mix
used for streaming, recording and external output.
Headphones
Select the output to send the Headphones audio mix to.
This mix is the same as Master Output except when Solo is enabled on an input.
When Solo is enabled on an input only that input will be heard.
A, B
These are optionally auxiliary audio buses that can be configured as an independent mix from the Audio Mixer.
For additional information about the audio buses feature, see the Audio Mixer documentation.
Audio Channels
Many sound cards provide 3 or more stereo outputs from a single device.
These are typically used to output surround sound, but can be used to output up to three independent stereo audio mixes in vMix.
1-2 The most common setting for standard stereo audio outputs
3-4 This will send a stereo mix out over the output usually used for Center-Subwoofer
5-6 This will send a stereo mix out over the output usually used for RearLeft-RearRight
Default Bus for New Inputs
Advanced audio scenarios may require inputs to be sent to an auxiliary bus such as A and B when they are added for the first time.
This default can be configured here.