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# preferredSampleRate

The preferred sample rate, in hertz.

```
var preferredSampleRate: Double { get }
```

## Discussion

The value of this property indicates the preferred sample rate set using the [`setPreferredSampleRate(_:)`](/documentation/AVFAudio/AVAudioSession/setPreferredSampleRate(_:)) method.

To determine the actual sample rate, query the [`sampleRate`](/documentation/AVFAudio/AVAudioSession/sampleRate) property.

---

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