---
title: "AudioServicesPlaySystemSound(_:)"
framework: audiotoolbox
role: symbol
role_heading: Function
path: "audiotoolbox/audioservicesplaysystemsound(_:)"
---

# AudioServicesPlaySystemSound(_:)

Plays a system sound object.

## Declaration

```swift
func AudioServicesPlaySystemSound(_ inSystemSoundID: SystemSoundID)
```

## Parameters

- `inSystemSoundID`: The system sound to play. Before using this function, call the doc://com.apple.audiotoolbox/documentation/AudioToolbox/AudioServicesCreateSystemSoundID(_:_:) function to obtain a system sound.

## Discussion

Discussion This function plays a short sound (30 seconds or less in duration). Because sound might play for several seconds, this function is executed asynchronously. To know when a sound has finished playing, call the AudioServicesAddSystemSoundCompletion(_:_:_:_:_:) function to register a callback function. On some iOS devices, you can pass the kSystemSoundID_Vibrate constant to invoke vibration. On other iOS devices, calling this function with that constant does nothing. Sound files that you play using this function must be: No longer than 30 seconds in duration In linear PCM or IMA4 (IMA/ADPCM) format Packaged in a .caf, .aif, or .wav file In addition, when you use the AudioServicesPlaySystemSound function: Sounds play at the current system audio volume, with no programmatic volume control available Sounds play immediately Looping and stereo positioning are unavailable Simultaneous playback is unavailable: You can play only one sound at a time The sound is played locally on the device speakers; it does not use audio routing.

## See Also

### Related Documentation

- [AudioServicesAddSystemSoundCompletion(_:_:_:_:_:)](audiotoolbox/audioservicesaddsystemsoundcompletion(_:_:_:_:_:).md)
- [AudioServicesCreateSystemSoundID(_:_:)](audiotoolbox/audioservicescreatesystemsoundid(_:_:).md)

### Playing Sounds

- [AudioServicesPlayAlertSoundWithCompletion(_:_:)](audiotoolbox/audioservicesplayalertsoundwithcompletion(_:_:).md)
- [AudioServicesPlaySystemSoundWithCompletion(_:_:)](audiotoolbox/audioservicesplaysystemsoundwithcompletion(_:_:).md)
- [AudioServicesPlayAlertSound(_:)](audiotoolbox/audioservicesplayalertsound(_:).md)