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36 lines
803 B
Python
Executable File
36 lines
803 B
Python
Executable File
#!/usr/bin/env python
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import pylab
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import numpy as np
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from amodem import common
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from amodem.config import Configuration
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import sys
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"""Script that exposes pylab's spectogram plotting
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capabilities to the command line. It implements this
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for amodem.config Configurations.
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"""
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def spectrogram(t, x, Fs, NFFT=256):
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ax1 = pylab.subplot(211)
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pylab.plot(t, x)
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pylab.subplot(212, sharex=ax1)
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pylab.specgram(x, NFFT=NFFT, Fs=Fs, noverlap=NFFT/2,
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cmap=pylab.cm.gist_heat)
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def main():
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config = Configuration()
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for fname in sys.argv[1:]:
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x = common.load(open(fname, 'rb'))
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t = np.arange(len(x)) * config.Ts
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pylab.figure()
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pylab.title(fname)
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spectrogram(t, x, config.Fs)
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pylab.show()
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if __name__ == '__main__':
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main()
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