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  /cts/suite/audio_quality/test_description/processing/
calc_thd.py 25 fftData = abs(fft.fft(data * np.hanning(len(data))))
26 fftData[0] = 0 # ignore DC
27 fftLen = len(fftData)/2
31 np.argmax(fftData[baseI - iMargain /2: baseI + iMargain/2])
32 peakLoc = np.argmax(fftData[:fftLen])
37 P0 = math.pow(la.norm(fftData[baseSignalLoc - iMargain/2: baseSignalLoc + iMargain/2]), 2)
41 Pothers += math.pow(la.norm(fftData[i - iMargain/2: i + iMargain/2]), 2)
gen_random.py 34 fftData = fft.rfft(randomSignal)
37 #print len(randomSignal), len(fftData), fLow, fHigh, iHigh
40 fftData[0] = 0 # DC
42 fftData[ 2 * i + 1 ] = 0
43 fftData[ 2 * i + 2 ] = 0
45 fftData[samples - 1] = 0
47 filteredData = fft.irfft(fftData)
48 #freq = np.linspace(0.0, samplingRate, num=len(fftData), endpoint=False)

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