Audio Routing & Metronome

Routing Strings

Tracks store their destination in audioTo. The core parser resolves common routes:

• master and main route to the main stereo pair.
• monitor routes to channels 2-3 when at least four hardware channels are available, otherwise it falls back to the main pair.
• ext:0 routes to physical channel 0.
• ext:2-3 routes to a stereo physical pair using zero-based external channel indexes.

The parser also accepts hardware-style output names such as out 1 or out_1, converting them to the matching zero-based channel internally.

Master Vs. Physical Outputs

Use Master for musical playback that should follow the main mix. Use external outputs for material that must bypass the main mix, such as click, count-ins, spoken cues, or guide stems.

The desktop settings panel controls which output channels are enabled. Track headers can then choose the route.

Metronome

LibreTracks includes a synthesized metronome. It does not require a separate imported audio file.

The settings model stores:

• Whether the metronome is enabled.
• Metronome volume.
• Metronome output route.

The audio runtime applies metronome settings independently from regular clip playback, which lets click routing remain separate from the Master bus.

Live Routing Pattern

A typical live setup is:

• Playback stems to Master.
• Click and cue tracks to an external output such as ext:2-3.
• Metronome to the same cue output or another dedicated channel.

Always rehearse with the same interface and channel map that will be used on stage.