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# Bandpass Unit Parameters

Parameters for the Bandpass unit.

## Topics

### Constants

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

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


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