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#!/usr/bin/env python
# encoding: utf-8
"""
Spectral gate and blur.
"""
from pyo import *
s = Server(duplex=0).boot()
snd = "../snds/ounkmaster.aif"
chnls = sndinfo(snd)[3]
size = 2048
olaps = 8
win = 5
snd = SfPlayer(snd, loop=True, mul=0.3)
fin = FFT(snd, size=size, overlaps=olaps, wintype=win)
pol = CarToPol(fin["real"], fin["imag"])
# bin-by-bin amplitude threshold
thresh = Sig(0.2)
thresh.ctrl([SLMap(0.0001, 1, "log", "value", 0.2)], title="Gate Threshold")
# attenuation
mult = Sig(0.1)
mult.ctrl([SLMap(0.0001, 1, "log", "value", 0.0001)], title="Gate Attenuation")
amp = Compare(pol["mag"] * 50, thresh, ">")
scl = amp * (1 - mult) + mult
delta = Vectral(pol["mag"] * scl, framesize=size, overlaps=olaps, down=0.35)
delta.ctrl(title="Blur controls")
car = PolToCar(delta, pol["ang"])
fout = IFFT(car["real"], car["imag"], size=size, overlaps=olaps, wintype=win).mix(chnls).out()
s.gui(locals())
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