# sound proc

Source: https://ref.dm-lang.org/proc/sound

### Format
- `sound(file,repeat=0,wait,channel,volume)`
- `(supports named arguments)`


### Args
- `file`: A sound file to play
- `repeat`: 1 to play sound repeatedly
- `wait`: 0 to interrupt current sound on channel; 1 to wait in queue
- `channel`: 0 for any available channel, 1-1024 for specific channel (non-MIDI only)
- `volume`: 100 for full volume (default), 0 for none, or any value in between


This is used to play a sound file.

The sound file must be a music or sample file. Music files include MIDI (.mid or .midi), and module formats .mod, .it, .s3m, .xm, and .oxm. A sample file used for sound effects can be .wav, .ogg, .raw, .wma, or .aiff.\*

The following example plays some sound files. Note that `sound()` is not even necessary when you don't need to set any additional parameters.

```dm /sound/
usr << 'giggle.wav' // play a giggle once
usr << sound('gigue.midi',1) // repeat gigue
usr << sound('boom.wav', volume=50) // play an explosion at half volume
```

\*See **Notes** under [sound support](https://ref.dm-lang.org/DM/sound.md) for more information.

### See also
- [sound datum](https://ref.dm-lang.org/sound/index.md)
- [vars (sound)](https://ref.dm-lang.org/sound/var/index.md)
- [\<\< output operator](https://ref.dm-lang.org/operator/lessless/output.md)
- [load_resource proc](https://ref.dm-lang.org/proc/load_resource.md)