6 from aubio import pitch, sink
13 pyaudio_format = pyaudio.paFloat32
16 stream = p.open(format=pyaudio_format,
20 frames_per_buffer=buffer_size)
24 output_filename = sys.argv[1]
25 record_duration = 5 # exit 1
26 outputsink = sink(sys.argv[1], samplerate)
31 record_duration = None
35 win_s = 4096 # fft size
36 hop_s = buffer_size # hop size
37 pitch_o = pitch("default", win_s, hop_s, samplerate)
38 pitch_o.set_unit("midi")
39 pitch_o.set_tolerance(tolerance)
41 print("*** starting recording")
44 audiobuffer = stream.read(buffer_size)
45 signal = np.fromstring(audiobuffer, dtype=np.float32)
47 pitch = pitch_o(signal)[0]
48 confidence = pitch_o.get_confidence()
50 print("{} / {}".format(pitch,confidence))
53 outputsink(signal, len(signal))
56 total_frames += len(signal)
57 if record_duration * samplerate < total_frames:
59 except KeyboardInterrupt:
60 print("*** Ctrl+C pressed, exiting")
63 print("*** done recording")