Formant Khoomii

formant.coffee

formants =
  a:[700, 1200, 2900]
  i:[300, 2700, 2700]
  u:[390, 1200, 2500]
  e:[450, 1750, 2750]
  o:[460,  880, 2800]

freq = 174.61412048339844
freq = T("+", freq, T("sin", {freq:3, mul:0.8}).kr()).kr()

synth = T("saw", {freq:freq})
f1 = T("bpf", {freq:T("param", {value: 700}), Q:9}, synth)
f2 = T("bpf", {freq:T("param", {value:1200}), Q:9}, synth)
f3 = T("bpf", {freq:T("param", {value:2900}), Q:9}, synth)
synth = T("+", f1, f2, f3)
synth = T("bpf", {freq:3200, Q:0.5}, synth)

timer = T("interval", {interval:250}, ->
  f = formants["aiueo"[(Math.random()*5)|0]]
  f1.freq.linTo(f[0], 150)
  f2.freq.linTo(f[1], 150)
  f3.freq.linTo(f[2], 150)
)