Audio Output
Send audio to speakers or system output.
What it does
Audio Output is a terminal node: it plays sound rather than passing a value downstream. Wire an audio signal into Left (mono, or the left channel of a stereo pair) and optionally Right, and those samples are written through to the system's audio output as the graph cooks. Volume and Mute are applied at the output stage, so changes respond instantly, even mid-note.
It also reports the live output Level, for a meter, and the device's actual Sample Rate, which upstream audio nodes can match.
When to use it
A synthesised tone, loaded audio file or live input heard through the speakers
The final mix of an audio signal chain sent somewhere
An on-screen level meter, or the device's real sample rate fed back into other audio nodes
| Parameter | Type | Default | What it does |
|---|---|---|---|
left | Signal or Number[] | — | Left/mono audio buffer (NumberArray with sample_rate) |
right | Signal or Number[] | — | Right channel (if unconnected, duplicates left) |
volume | Number | 0.800 | Master output volume |
mute | Boolean | false | Mute audio output |
Gotchas
With Right left unconnected, Left is duplicated, so a stereo pair always comes out and a mono source needs no manual split.
Mute is a dedicated toggle, separate from Volume, for instant silence without losing the volume setting.
Worked example
Add an Audio Output node and wire your audio source into Left.
Leave Right unconnected for mono, or wire a second channel for stereo.
Adjust Volume to taste, and use Mute to silence playback instantly.
Watch the Level output to confirm signal is reaching the device.
See also
Audio Input · Audio File · Ableton Link · Numbers, signals & audio