#lang scribble/manual @(require (for-label racket)) @title{RHPF} A resonant high pass filter.@section{related} Classes/Formlet, Classes/RLPF, Classes/Resonz, Classes/Ringz @section{categories} UGens>Filters>Linear @section{description} A resonant high pass filter. @section{classmethods} @section{method} ar, kr @section{argument} in The input signal. @section{argument} freq Cutoff frequency in Hertz. WARNING: due to the nature of its implementation frequency values close to 0 may cause glitches and/or extremely loud audio artifacts! @section{argument} rq The reciprocal of Q (bandwidth / cutoffFreq). @section{argument} mul Output will be multiplied by this value. @section{argument} add This value will be added to the output. @section{Examples} @racketblock[ { RHPF.ar(Saw.ar(200,0.1), FSinOsc.kr(XLine.kr(0.7,300,20), 0, 3600, 4000), 0.2) }.play; ( { var ctl = RHPF.kr(LFSaw.kr(2), SinOsc.kr(XLine.kr(0.07,30,20), 0, 35, 40), 0.05); SinOsc.ar(ctl * 200 + 500); }.play; ) :: ]