SHREKT TON CPU

tp2.py

from pyo import *
import random
import math

server = Server()
server.boot()

play_dur = 0.125

# Instrument de synthèse
note_dur = 0.1
note_fadein = 0.01
note_fadeout = 0.01
req = math.ceil((note_dur + note_fadein + note_fadeout) / play_dur)

src = [Sine(mul=[0,0,0,0]) for _ in range(req)]
fader = [Fader(fadein=note_fadein, fadeout=note_fadeout, dur=note_dur) for _ in range(req)]
for f in fader:
  f.exp = 3
shiftFreq = Randi(min=0.125, max=12.0, freq=0.6)
shift = LFO(
    type=0,
    freq=1/shiftFreq,
    add=[0.75, 0.5, 0.0],
    mul=[0.5, 1.0, 2.0])

cur_note = 0
def play_note(freq, mul):
  global cur_note

  fader[cur_note].play()
  # === ICI ÇA SHREKT TON CPU === #
  src[cur_note].freq = [freq] + freq * shift
  src[cur_note].mul = [mul * 0.15 * (i - 4)/4 for i in (range(4))] * fader[cur_note]

  cur_note = (cur_note + 1) % req

mix = Mix(src, mul=0.75)
delay = Delay(mix, delay=1)
reverb = WGVerb([mix, delay], mul=0.5, bal=0.4, feedback=0.7, cutoff=3500).out()

# Génération mélodique
ton1 = 60
ton2 = 60 + 9
ton3 = 60 + 2
ton4 = 60 + 7
notes = [
  ton1, ton1 + 5, ton1 + 7, ton1 + 11,
  ton2, ton2 + 3, ton2 + 6, ton2 + 10,
  ton3, ton3 + 3, ton3 + 7, ton3 + 9,
  ton4, ton4 + 4, ton4 + 7, ton4 + 10]
freqs = midiToHz(notes)

beat = 0
def play():
  global beat

  start = beat % len(freqs)
  end = (beat + 3) % len(freqs)
  sliding = freqs[start:end] if start < end else freqs[0:end] + freqs[start:len(freqs)]
  play_note(
    freq = random.choice(sliding),
    mul = 1.0 if beat % 4 == 0 else 0.25)

  beat = beat + 1

pattern = Pattern(play, time=play_dur).play()

server.gui(locals())