ex = "labeled_data/1/1.wav"
(rate, sig) = wavfile.read(ex)
mt, st = aFE.mtFeatureExtraction(sig, rate, round(rate*1),
                                 round(rate*0.5), round(rate*0.25),
                                 round(rate*0.125))
print len(mt) 
print len(mt[0])
print len(st)
print len(st[0])

56
9
28
34