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19 lines
418 B
Python
19 lines
418 B
Python
import pylab
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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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Pxx, freqs, bins, im = pylab.specgram(x,
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NFFT=NFFT, Fs=Fs, noverlap=NFFT/2, cmap=pylab.cm.gist_heat)
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pylab.show()
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if __name__ == '__main__':
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import sys
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import common
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fname, = sys.argv[1:]
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t, x = common.load(fname)
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spectrogram(t, x, common.Fs)
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