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# SCStreamOutputType.audio

An output type that represents an audio capture sample buffer.

```
case audio
```

## Discussion

A captured sample buffer wraps an <doc://com.apple.documentation/documentation/CoreAudioTypes/AudioBufferList> structure that contains the audio samples. The stream configuration’s [`sampleRate`](/documentation/ScreenCaptureKit/SCStreamConfiguration/sampleRate) and [`channelCount`](/documentation/ScreenCaptureKit/SCStreamConfiguration/channelCount) property values determine of the format of the audio.

---

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