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# AURoundTripAACParam Parameters

## Topics

### Constants

[`var kRoundTripAACParam_BitRate: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_BitRate)

[`var kRoundTripAACParam_CompressedFormatSampleRate: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_CompressedFormatSampleRate)

[`var kRoundTripAACParam_EncodingStrategy: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_EncodingStrategy)

[`var kRoundTripAACParam_Format: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_Format)

[`var kRoundTripAACParam_Quality: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_Quality)

[`var kRoundTripAACParam_RateOrQuality: AudioUnitParameterID`](/documentation/AudioToolbox/kRoundTripAACParam_RateOrQuality)


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