Harmonics objects are convenient factories for creating Arrays that are used to fill buffers using the b_gen sine fill commands on the server.
Create a new Harmonics array of size. Nothing is filled in for you, until instance methods are applied.
a = Harmonics.new(16); // just returns an instance of Harmonics with sizea.ramp(1.0, 1.0); // returns a harmonic seriesb = Buffer.alloc(s, 512, 1);// harmonic series for freqs, ramp down for ampsb.sine2(a.ramp(1.0, 1.0).postln, a.ramp(0.5, -0.025).postln, true, true, true);(z = SynthDef("help-Osc",{ arg out=0,bufnum=0; Out.ar(out, Osc.ar(bufnum, 200, 0, 0.5) )});)y = z.play(s,[\out, 0, \bufnum, b]);y.free;Implements the formula: 1 / ((i+1) ** k)
xxxxxxxxxxa.decay(1.0);b.sine2(a.ramp(1.0, 1.0).postln, a.decay(1.0).postln, true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);y.free;Implements the formula: 1 / (i ** k)
xxxxxxxxxxa.geom(1.2);b.sine2(a.ramp(1.0, 1.0).postln, a.geom(1.2).postln, true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);y.free;Create a formant like structure.
xxxxxxxxxxa.formant(6, 3);b.sine2(a.formant(12, 3).postln, a.geom(1.2), true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);y.free;xxxxxxxxxxa.teeth(6, 3);b.sine2(a.teeth(2, 3).postln, a.geom(1.2), true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);b.sine2(a.teeth(4, 1).postln, a.geom(1.2), true, true, true);b.sine2(a.teeth(1, 3).postln, a.geom(1.2), true, true, true);b.sine2(a.teeth(2, 3).postln, a.geom(1.2), true, true, true);y.free;Returns 1.0 to the nth place, fills the rest with 0.0
xxxxxxxxxxa.cutoff(3);b.sine2(a.ramp(1.0, 1.0), a.cutoff(3), true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);b.sine2(a.ramp(1.0, 1.0), a.cutoff(3), true, true, true);b.sine2(a.ramp(1.0, 1.0), a.cutoff(5), true, true, true);b.sine2(a.ramp(1.0, 1.0), a.cutoff(1), true, true, true);y.free;xxxxxxxxxxa.shelf(0, 6, 1, 0);b.sine2(a.ramp(1.0, 1.0), a.shelf(0, 6, 1, 0).postln , true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);b.sine2(a.ramp(1.0, 1.0), a.shelf(0, 11, 1, 0).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.shelf(2, 6, 1, 0).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.shelf(6, 8, 1, 0).postln , true, true, true);y.free;xxxxxxxxxxa.sine(8, 0, 1, 0);b.sine2(a.ramp(1.0, 1.0), a.sine(8, 0, 1, 0).postln , true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);b.sine2(a.ramp(1.0, 1.0), a.sine(4, 0, 1, 0).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.sine(2.2, 0.5pi, 0.4, 0.2).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.sine(pi, 0.25pi, 0.5, 0).postln , true, true, true);y.free;xxxxxxxxxxa.pulse(8, 0, 2, 1, 0);b.sine2(a.ramp(1.0, 1.0), a.pulse(8, 0, 2, 1, 0).postln , true, true, true);y = z.play(s,[\out, 0, \bufnum, b]);b.sine2(a.ramp(1.0, 1.0), a.pulse(8, 0, 2, 1, 0).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.pulse(4, 0, 2, 0.4, 0.2).postln , true, true, true);b.sine2(a.ramp(1.0, 1.0), a.pulse(7, 0.5pi, 3, 0.5, 0.1).postln , true, true, true);y.free;