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# AUAudioFrameCount

A number of audio sample frames.

```
typealias AUAudioFrameCount = UInt32
```

## Discussion

This alias is type `uint32_t` for impedance-matching with the pervasive use of `UInt32` in the Audio Toolbox framework and the C Audio Unit framework APIs, as well as the <doc://com.apple.documentation/documentation/AVFAudio/AVAudioFrameCount> data type.

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