Group Tracks on a Bus
A track has one output, master unless you change it. Point several tracks’ outputs at one
track, and that track is the group’s bus.
The Audio Graph explains the model.
Route the tracks into a bus
Section titled “Route the tracks into a bus”Make the bus, give it the effects the group shares, and set each track’s output with >>:
use "std/instruments" { Sampler, Kit };use "std/effects" { Lowpass };
let drum_bus = AudioTrack("drum_bus").set_effects(#[Lowpass("lowpass", 4000)]);
let kick = AudioTrack("kick").set_instrument(Sampler(Kit("CR-78")));let snare = AudioTrack("snare").set_instrument(Sampler(Kit("CR-78")));
kick >> drum_bus;snare >> drum_bus;
kick << [bd*4];snare << [_ sd _ sd];
PLAY;The bus reaches master by itself, so the group has one fader: drum_bus.volume.
>> chains hops, so kick >> drum_bus >> master routes a track and its bus in one line.
Take a track out of the group
Section titled “Take a track out of the group”Route it back to master:
snare >> master;Delete a bus
Section titled “Delete a bus”drum_bus.delete();The tracks that output to the bus now output to nowhere
— Live’s Sends Only — and stop sounding until you route them again (kick >> master;). Nothing
is rerouted for you. Sends into the bus are removed and sidechain inputs it fed are unwired; the
console names every track this touched.
Related
Section titled “Related”- Audio: Routing & sends — sends and the other routing methods
- Share an Effect with a Send — add a copy of a track to a bus instead of moving it
- The Audio Graph — outputs, sends, gain and dependency order