---
title: AVAudioSession.InterruptionReason.builtInMicMuted
framework: avfaudio
role: symbol
role_heading: Case
path: avfaudio/avaudiosession/interruptionreason/builtinmicmuted
---

# AVAudioSession.InterruptionReason.builtInMicMuted

The system interrupts the audio session when the device mutes the built-in microphone.

## Declaration

```swift
case builtInMicMuted
```

## Discussion

Discussion This interruption reason typically occurs when a user closes an iPad’s Smart Folio cover.

## See Also

### Interruption Reasons

- [AVAudioSession.InterruptionReason.default](avfaudio/avaudiosession/interruptionreason/default.md)
- [AVAudioSession.InterruptionReason.routeDisconnected](avfaudio/avaudiosession/interruptionreason/routedisconnected.md)
- [AVAudioSession.InterruptionReason.sceneWasBackgrounded](avfaudio/avaudiosession/interruptionreason/scenewasbackgrounded.md)
- [AVAudioSession.InterruptionReason.appWasSuspended](avfaudio/avaudiosession/interruptionreason/appwassuspended.md)