#! /usr/bin/env python import sysfrom aubio import source, sink, pvoc, tss if __name__ == '__main__':    if len(sys.argv) < 2:        print('usage: %s <inputfile> <outputfile_transient> <outputfile_steady>' % sys.argv[0])        sys.exit(1)     samplerate = 44100    win_s = 1024       # fft size    hop_s = win_s // 8 # block size     f = source(sys.argv[1], samplerate, hop_s)    g = sink(sys.argv[2], samplerate)    h = sink(sys.argv[3], samplerate)     pva = pvoc(win_s, hop_s)    # a phase vocoder    pvb = pvoc(win_s, hop_s)    # another phase vocoder    t = tss(win_s, hop_s)       # transient steady state separation     t.set_threshold(0.01)    t.set_alpha(3.)    t.set_beta(4.)     read = hop_s     while read:        samples, read = f()               # read file        spec = pva(samples)               # compute spectrum        trans_spec, stead_spec = t(spec)  # transient steady-state separation        transients = pva.rdo(trans_spec)  # overlap-add synthesis of transients        steadstate = pvb.rdo(stead_spec)  # overlap-add synthesis of steady states        g(transients, read)               # write transients to output        h(steadstate, read)               # write steady states to output     del f, g, h                           # finish writing the files now    sys.exit(0)     from demo_spectrogram import get_spectrogram    from pylab import subplot, show    subplot(311)    get_spectrogram(sys.argv[1])    subplot(312)    get_spectrogram(sys.argv[2])    subplot(313)    get_spectrogram(sys.argv[3])    show()