Besides external audio sources, sounds played from internal storage volumes (including removable media such as external hard drives or thumb drives) via the Media Players (DDRs, etc.) can be added to the output mix.
Video and audio-only files in DDR playlists, along with audio files in the Sounds player, may contain one or more audio channels. At most, Media Players output the first four audio channels of multiple channels; additional embedded channels are ignored. Other options and controls in these sub-panels are similar to those provided for external audio sources.
This control group governs the sound embedded in Animation Store Transitions. The remaining control groups in the Audio Mixer are dedicated to various audio outputs.
Secondary Audio Busses
Beyond the primary busses mentioned here, the system maintains a large number of secondary internal busses. For example, the Solo switch for each input (and output) is actually a send that adds sound to a Solo bus.
Likewise, the IsoCorder™ module (on supporting models) permits discrete recording from the unmodified audio input associated with any single video source; this constitutes up to eight additional audio busses.