util.py 文件源码

def compute_avgamplitude(signal, winsize, window):
    windownum = int(len(signal) / (winsize / 2)) - 1
    avgamp = np.zeros(winsize)
    for l in xrange(windownum):
        avgamp += np.absolute(sp.fft(get_frame(signal, winsize, l) * window))
    return avgamp / float(windownum)