Revision 6:fd0f9d0615b2 7-synthesize-stereo-sines-with-numpy.py

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7-synthesize-stereo-sines-with-numpy.py
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import numpy as np
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import pylab as plt
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from scikits.audiolab import Sndfile
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from scikits.audiolab import Format
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    # generate tone and set volume for left and right


  		




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    tone[i][0] = np.sin(2*np.pi*freq*phaseVal)*amp


  		




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    tone[i][1] = np.sin(2*np.pi*freq*phaseVal)*amp


  		




  
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    tone[i][1] = np.sin(2*np.pi*(freq*2)*phaseVal)*amp


  		




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#################################################


  		




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# close the audio file


  		




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f.close()


  		




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#################################################


  		




  
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############### PLOT USING PYLAB ################


  		




  
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#################################################   


  		




  
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toneL = tone[:,0]


  		




  
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toneR = tone[:,1]


  		




  
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plt.subplot(211)


  		




  
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plt.plot(toneL[0:200])


  		




  
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plt.subplot(212)


  		




  
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plt.plot(toneR[0:200])


  		




  
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plt.show()


  		












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