Hi vMix,

there's no shorcut yet to control these like in a MIDI Controller knobs or faders, specially the Master Bus. The limitation is we can only control the SetGain of Inputs but not Buses. If for Example, the Master Bus goes out to a House Speaker, there's no shortcut yet to adjust the Gain DB. Even in vMix API, GainDB value is not present for the Buses.

Thanks in advance.

+1 for this.

The gain control already exists for each bus in the Audio Mixer UI, but it isn't exposed as a shortcut, an activator or in the API. Inputs already have SetGain, so the same thing for buses should hopefully be a small addition?

Proposed:
- SetBusXGain, with Value = Bus,Gain dB (M,A,B,C,D,E,F,G; same range as SetGain)
- A gain attribute on the master and bus elements in the API XML, so external controllers can read the current value and stay in sync when it's changed in the UI
- Optionally, matching activators so MIDI surfaces get feedback

Use case: we run vMix audio from hardware control surfaces (a Behringer X-Touch over MCU) in a broadcast remote operations setup. Bus faders, mutes and send-to-master can all be controlled and read back over the API today, but bus gain is the one level control the operator can't reach without going into the vMix UI.

The current workarounds aren't great. A gain VST on the bus can only be toggled on or off over the API, not adjusted, for example.

Thanks for considering it.