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# kAudioSessionCategory_SoloAmbientSound

The default category, used unless you set a category with the [`AudioSessionSetProperty(_:_:_:)`](/documentation/AudioToolbox/AudioSessionSetProperty(_:_:_:)) function.

```
var kAudioSessionCategory_SoloAmbientSound: Int { get }
```

## Discussion

When you use this category, audio from other apps is silenced. Your audio is silenced by screen locking and by the Silent switch (called the *Ring/Silent switch* on iPhone).

This category is equivalent to the <doc://com.apple.documentation/documentation/AVFAudio/AVAudioSession/Category-swift.struct/soloAmbient> category provided in the AVFoundation framework.

---

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