AUHipass Parameters Parameters for the Highpass unit. TopicsConstantskHipassParam_CutoffFrequencykHipassParam_Resonance See AlsoFiltersAudio Unit Filter SubtypesBandpass Unit ParametersAULowpass ParametersAULowShelf ParametersAUHighShelfFilter ParametersAUNBandEQ Filter TypesAUNBandEQ Property IDsAUNBandEQ Parameters