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# Core Audio Enumerations

## Topics

### Enumerations

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[`enum AudioDeviceClockAlgorithmSelector : UInt32;`](/documentation/CoreAudio/AudioDeviceClockAlgorithmSelector)

[`enum AudioHardwarePowerHint`](/documentation/CoreAudio/AudioHardwarePowerHint)

[`enum AudioLevelControlTransferFunction`](/documentation/CoreAudio/AudioLevelControlTransferFunction)

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[`enum AudioHardwareDirection`](/documentation/CoreAudio/AudioHardwareDirection)

An enum representing audio stream direction.

[`enum AudioServerPlugInIOOperation : UInt32;`](/documentation/CoreAudio/AudioServerPlugInIOOperation)

[`enum CATapMuteBehavior`](/documentation/CoreAudio/CATapMuteBehavior)


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