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# Parametric EQ Unit Parameters

Parameters for the Parametric EQ unit.

## Topics

### Constants

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

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

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


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