I need to create a ducking feature for an audio device.
There are 4 audio inputs on the system and 4 audio outputs, which outputs exactly same audio which came from the inputs.
In addition, there is a special microphone input. Only when a person talk to microphone, I want the 4 outputs gain to be decreased, each by a configurable amount.
Can some one please explain to me (or provide me a SigmaStudio diagram if possible) which components should I use to achieve such a behavior from my DSP?
Thanks in advance.