-- bpf
let f = fSinOsc kr (xLine kr 0.7 300 20 RemoveSynth) 0 * 3600 + 4000
in bpf (saw ar 200 * 0.5) f 0.3

-- bpf
let x = mouseX kr 100 10000 Exponential 0.2
in bpf (saw ar 200 * 0.5) x 0.3

-- bpf
let n = whiteNoiseId 'α' ar
    x = mouseX kr 220 440 Exponential 0.1
    y = mouseY kr 0.01 0.2 Linear 0.1
in bpf n (mce [x, 550 - x]) y

-- bpf ; of control signals
let vib = bpf (pinkNoiseId 'α' kr) (mouseX kr 1 100 Exponential 0.2) 0.3 * 10
in sinOsc ar (vib * 200 + 600) 0 * 0.1

-- bpf ; ln 2021-04-11 https://lukasnowok.github.io/spectrology/
let n = bpf (whiteNoiseId 'α' ar) 10000 (xLine ar 2 0.002 20 DoNothing)
    o = sinOsc ar 10000 0 * xLine ar 0.001 0.3 20 DoNothing
in (n + o) * 0.1

---- ; drawings
Ui.ui_baudline 4096 50 "linear" 2
Sound.Sc3.Plot.Fft.plot_ugen_fft1 0.05 (bpf (whiteNoiseId 'α' ar) 440 0.01)