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# kAudioFileStreamProperty_DataFormat

An `AudioStreamBasicDescription` structure describing the format of the audio data in the stream.

```
var kAudioFileStreamProperty_DataFormat: AudioFileStreamPropertyID { get }
```

## Discussion

An `AudioStreamBasicDescription` structure describing the format of the audio data in the stream. For more information on audio stream basic descriptions, see <doc://com.apple.documentation/documentation/CoreAudio/core-audio-data-types>.

---

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