object HPZ2 extends Serializable
three point difference filter UGen. Implements the formula :
out(i) = 0.25 * (in(i) - 2 * in(i-1) + in(i-2))
Examples
// engage with mouse button play { val sig = WhiteNoise.ar(0.5) val flt = HPZ2.ar(sig) LinXFade2.ar(sig, flt, MouseButton.kr(-1, 1)) }
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ar(in: GE): HPZ2
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input signal to be filtered
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kr(in: GE): HPZ2
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input signal to be filtered
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