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Viewing changes to examples/sequencing/02_random_score.py

  • Committer: Package Import Robot
  • Author(s): Tiago Bortoletto Vaz
  • Date: 2012-06-08 20:35:45 UTC
  • Revision ID: package-import@ubuntu.com-20120608203545-4z7kcf2lgvpsk18y
Tags: upstream-0.6.1
Import upstream version 0.6.1

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examples/sequencing/02_random_score.py
 
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#!/usr/bin/env python
 
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# encoding: utf-8
 
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"""
 
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Calling Python function from an audio stream with the Score object.
 
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"""
 
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from pyo import *
 
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import random
 
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s = Server(sr=44100, nchnls=2, buffersize=256, duplex=0).boot()
 
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# Frequency of event generation in Hz
 
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GEN_FREQ = .25
 
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aamp = Linseg([(0,0),(1./GEN_FREQ,1),(2./GEN_FREQ,0)], mul=.5).stop()
 
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asyn = Rossler(pitch=0.25, chaos=0.5, stereo=True, mul=aamp).out()
 
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bamp = Linseg([(0,0),(1./GEN_FREQ,1),(2./GEN_FREQ,0)], mul=.25).stop()
 
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bsyn = SineLoop(freq=[100,100], feedback=0.05, mul=bamp).out()
 
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camp = Linseg([(0,0),(1./GEN_FREQ,1),(2./GEN_FREQ,0)], mul=.25).stop()
 
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csyn = FM(carrier=[100,100], ratio=[.49,.5], index=6, mul=camp).out()
 
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def event_0():
 
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    print "playing chaotic attractor"
 
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    asyn.pitch = random.uniform(0.25,0.75)
 
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    asyn.chaos = random.uniform(0.2,0.8)
 
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    aamp.play()
 
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def event_1():
 
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    print "playing looped oscillator"
 
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    bsyn.freq = [random.choice(range(50,501,50))*random.uniform(0.99,1.01) for i in range(2)]
 
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    bsyn.feedback = random.uniform(0.01, 0.1)
 
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    bamp.play()
 
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def event_2():
 
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    print "playing frequency modulation"
 
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    csyn.carrier = [random.choice([50,100,150,200,250])*random.uniform(0.99,1.01) for i in range(2)]
 
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    csyn.ratio = [random.choice([.1251,.249,.502,.7501,1.003]) for i in range(2)]
 
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    camp.play()
 
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tr = RandInt(max=3, freq=GEN_FREQ)
 
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sc = Score(input=tr, fname='event_')
 
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s.gui(locals())
 
 
b'\\ No newline at end of file'