Audio Mixer
MultiMon's inline audio mixer — per-track volume, pan, mute and solo, the master fader, and the one output device the whole show uses.
MultiMon’s audio lives in an inline mixer in the main window. There is no separate audio routing dialog to open and no window to go looking for.
Master controls
Above the track list are a MASTER fader and a Mute box, which apply to the whole mix, and an Add audio… button.
Add audio… loads a standalone stem — a music bed, a click track, a separate language mix — from
mp3, wav, flac, aac or m4a, or takes the audio of an mp4 or mov. A track that came from a
video slot appears in the mixer on its own and follows that slot; clear the video to remove it.
Per-track controls
Every track in the mixer has:
| Control | What it does |
|---|---|
| Volume | The level for that track |
| Pan | Its position across the stereo field |
| Mute | Silences that track |
| Solo | Plays that track alone |
| Remove | Takes a track you added out of the mix (tracks linked to a video slot cannot be removed this way) |
MultiMon has no channel-by-channel routing matrix, no mixer presets, no test tones and no surround upmix.
One output device for the whole show
There is a single AUDIO DEVICE dropdown at the top of the main window, beside the mode dropdown. Every track is sent to that one device — there is no per-track output device, so you cannot send one clip’s sound to one set of speakers and another clip’s to a different set.
On Windows, output runs through WASAPI in shared mode, so MultiMon coexists with everything else using your audio devices.
Clocked to the master timeline
Audio is clocked to the same master timeline that drives the video, so sound stays locked to picture across every screen. See Video synchronisation for how that clock works.
Saving your mixer settings
Mixer state belongs to your session. Note one current limitation: per-link mixer overrides set within
a perform session are not yet saved into the .mmproj project file. If a show depends on a specific
override, set it before you go up.
If a device disappears
If the audio device is removed mid-show — unplugged, switched by Windows, or its format changed — MultiMon rebuilds the WASAPI endpoint on the render thread and carries on. It retries three times; if the rebuild still fails, that output stops for the rest of the show. The audio ends there, and the application and the video keep running. Nothing crashes and nothing wedges, but you will not get the sound back without restarting the show.
If the graphics device is lost, MultiMon rebuilds it and resumes playback from the master clock. See What you can configure.