FOS : Filter : PureUGen : UGen : AbstractFunction : Object

out(i) = (a0 * in(i)) + (a1 * in(i-1)) + (b1 * out(i-1))

(

// same as OnePole

{    var x;

    x = LFTri.ar(0.4, 0, 0.99);

    FOS.ar(LFSaw.ar(200, 0, 0.2), 1 - x.abs, 0.0, x)

}.play;

)

​

(

// same as OneZero

{    var x;

    x = LFTri.ar(0.4, 0, 0.99);

    FOS.ar(LFSaw.ar(200, 0, 0.2), 1 - x.abs, x, 0.0)

}.play;

)

​

(

// same as OnePole, kr

{    var x, ctl;

    x = LFTri.kr(0.2, 0, 0.99);

    ctl = FOS.kr(LFSaw.kr(8, 0, 0.2), 1 - x.abs, 0.0, x);

    LFTri.ar(ctl * 200 + 500);

}.play;

)