ref: 4dd7816b6654077a8e96af1c9ae5d621c143199e
dir: /python/demos/demo_pitch.py/
#! /usr/bin/env python import sys from aubio import source, pitch win_s = 1024 # fft size hop_s = win_s # hop size if len(sys.argv) < 2: print "Usage: %s <filename> [samplerate]" % sys.argv[0] sys.exit(1) filename = sys.argv[1] samplerate = 0 if len( sys.argv ) > 2: samplerate = int(sys.argv[2]) s = source(filename, samplerate, hop_s) samplerate = s.samplerate pitch_o = pitch("default", win_s, hop_s, samplerate) pitch_o.set_unit("midi") pitches = [] # total number of frames read total_frames = 0 while True: samples, read = s() pitch = pitch_o(samples)[0] print "%f %f" % (total_frames / float(samplerate), pitch) #pitches += [pitches] total_frames += read if read < hop_s: break #print pitches