Creating a Talback / Control Room App for macOS?

Hi Everyone,

I want to build a Talkback App to mute/unmute an audio input of my CoreAudio interface before it gets to the destination application (in my case a VoIP app like Skype).
Also the audio returning from the VoIP app should be able to be dimmed before it gets back to the audio interface and the speakers.
Both mic mute/unmute and speaker dim should be controllable through Midi.

Before I get deep into the framework docs, is this generally possible with Juce and maybe could someone point me in the right direction where to start?