hsc3-0.17: Help/UGen/lfPulse.help.lhs
Sound.SC3.UGen.Help.viewSC3Help "LFPulse"
Sound.SC3.UGen.DB.ugenSummary "LFPulse"
Note: SC2 had no initial phase argument.
> import Sound.SC3
> g_01 = let f = lfPulse KR 3 0 0.3 * 200 + 200 in lfPulse AR f 0 0.2 * 0.1
> g_02 = let x = mouseX KR 0 1 Linear 0.2 in lfPulse AR 220 0 x * 0.1
square wave as sum of sines.
for odd partials n, amplitude is (1 / n), for even partials amplitude is 0.
phase is always 0.
> g_03 =
> let mk_freq f0 n = f0 * fromInteger n
> mk_amp n = if even n then 0 else 1 / fromInteger n
> mk_param f0 n = let m = [1,3 .. n] in zip (map (mk_freq f0) m) (map mk_amp m)
> x = midiCPS (mouseX KR 20 72 Linear 0.2)
> y = mouseY KR 0.01 0.1 Exponential 0.2
> e = xLine KR 0.01 1 20 DoNothing
> o1 = sum (map (\(fr,am) -> sinOsc AR fr 0 * am) (mk_param x 50)) * (1 - e)
> o2 = lfPulse AR x 0 0.5 * e
> in mce2 o1 o2 * y
Drawings
> import Sound.SC3.Plot {- hsc3-plot -}
> plot_ugen1 0.1 (lfPulse AR (line KR 100 800 0.1 DoNothing) 0 0.5)
