The audio mixer

InterDirector has three stereo mix buses: Master, A and B, each with its own fader, meter and mute. Master is what actually goes out with your stream and recording; A and B are extra buses you can build for another purpose, such as a monitor feed, and each can optionally be returned into Master.

Routing a source

Every source’s strip in the audio mixer has three small buttons, M, A and B, one for each bus. Press one to send that source’s audio to that bus; a source can go to more than one at once. A new source is routed to Master by default, with Follow Program switched on.

Gain, mute and meters

Each source has its own fader and a mute button, and each bus has the same. A source’s meter shows what it is actually sending, after its effects and its own fader — muting it, or routing it only to a bus you have not sent anywhere, both show as silence there.

Sending A or B into Master

A and B can each be returned into Master, so you can build a submix (several microphones combined, say) and send the result to Master as one fader, instead of routing every source there directly.

Where the sound goes

Master, A and B each go to a stereo pair you choose on your Mac’s audio interface, set once per Mac. Open a bus’s own settings to choose its pair.

Next

Follow Program, for sound that should come and go with the picture, and adding a VST3 effect to a source or a bus.