---
title: secondaryAudioShouldBeSilencedHint
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosession/secondaryaudioshouldbesilencedhint
---

# secondaryAudioShouldBeSilencedHint

A Boolean value that indicates whether another app, with a nonmixable audio session, is playing audio.

## Declaration

```swift
var secondaryAudioShouldBeSilencedHint: Bool { get }
```

## Discussion

Discussion Use this property as a hint to silence audio that’s secondary to the functionality of the app. For example, in a game that uses the ambient category, you can use this property to mute the soundtrack while leaving sound effects unmuted.

## See Also

### Mixing with other audio

- [isOtherAudioPlaying](avfaudio/avaudiosession/isotheraudioplaying.md)
- [silenceSecondaryAudioHintNotification](avfaudio/avaudiosession/silencesecondaryaudiohintnotification.md)
- [allowHapticsAndSystemSoundsDuringRecording](avfaudio/avaudiosession/allowhapticsandsystemsoundsduringrecording.md)
- [setAllowHapticsAndSystemSoundsDuringRecording(_:)](avfaudio/avaudiosession/setallowhapticsandsystemsoundsduringrecording(_:).md)