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import matplotlib.pyplot as plt
import numpy as np
import wave
import sys
spf = wave.open('test.wav','r')
#Extract Raw Audio from Wav File
signal = spf.readframes(-1)
signal = np.fromstring(signal, 'Int16')
signal = signal.astype(np.float32)
#If Stereo
if spf.getnchannels() == 2:
print('Just mono files')
sys.exit(0)
#plt.figure(1)
#plt.title('Signal Wave...')
#plt.plot(signal)
#plt.show()
plt.specgram(signal, Fs=48000)
plt.show()
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