---
title: source
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosession/deactivationcontext/source
---

# source

The source of the audio session deactivation.

## Declaration

```swift
var source: AVAudioSession.DeactivationSource { get }
```

## See Also

### Getting the deactivation details

- [interruptionContext](avfaudio/avaudiosession/deactivationcontext/interruptioncontext.md)