In [1]:

    

import numpy as np
import synth

CHUNK = 1024
CHANNELS = 1
RATE = 44100
WIDTH = 2


    

In [66]:

    

DATASIZE = 50000
frame = synth.synth_complex([200, 5000], [1,1], DATASIZE)

signal = numpy.array(frame, dtype=float)
# plot a part of it
pylab.plot(signal[0:1000])


    

    
Out[66]:





[<matplotlib.lines.Line2D at 0x10d2b6f50>]






    

In [67]:

    

rfft_signal = np.abs(np.fft.rfft(signal[0:CHUNK]))
plot(rfft_signal)


    

    
Out[67]:





[<matplotlib.lines.Line2D at 0x10e27e710>]






    

In [73]:

    

import pyaudio
import quietnet

def play_frames(buffer, chunk, channels, framerate, sample_width):
    frames = quietnet.pack_buffer(buffer)
    p = pyaudio.PyAudio()
    
    stream = p.open(format=p.get_format_from_width(sample_width),
                    channels=channels,
                    rate=framerate,
                    output=True)
    for frame in frames:
        stream.write(frame)
        
    stream.stop_stream()
    stream.close()
    p.terminate()


    

In [76]:

    

DATASIZE = 500000
frames = synth.synth_complex([17000], [1,1], DATASIZE)

# actually play it
play_frames(frames, CHUNK, CHANNELS, RATE, 2)


    

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