#!/usr/bin/python

def do(filein):
    from aubio import aubioclass
    hopsize   = 512
    bufsize   = 4096
    frameread = 0
    filei     = aubioclass.sndfile(filein)
    srate     = filei.samplerate()
    channels  = filei.channels()
    myvec     = aubioclass.fvec(hopsize,channels)
    readsize  = filei.read(hopsize,myvec)
    ppick     = aubioclass.pitchpick(bufsize,hopsize,channels,myvec,srate)
    while(readsize==hopsize):
        readsize = filei.read(hopsize,myvec)
        val = ppick.do(myvec)
        freq = aubioclass.bintofreq(val,srate,bufsize)
        now = (frameread)*hopsize/(srate+0.)
        print "%.3f     %.2f" % (now,freq)
        frameread += 1

if __name__ == "__main__":
    import sys
    do(sys.argv[1])