mode="full") print("Convolution (including mirrored data) is %s seconds or %s frames" % (frame_to_seconds(len(convolution_data), framerate=sg.framerate), len(convolution_data))) print("Normalizing Convolution Amplitude") convolution = Waveform( normalize(convolution_data[:int(len(convolution_data) / 2)])) if args.plot: _, subplots = pyplot.subplots(4, 1) subplots[0].plot(main_track.frames) subplots[0].set_title('Main Track 440.0 and 660.0 Hz - Root and Fifth') subplots[1].plot(harmony_track.frames) subplots[1].set_title('Harmony Major Third (550.0 Hz)') subplots[2].plot(preprocessed_harmony_track.frames) subplots[2].set_title('Preprocessed Harmony Track') subplots[3].plot(convolution.frames) subplots[3].set_title('Convolved track of the two waveforms.') pyplot.show() else: from potty_oh.wav_file import wav_file_context with wav_file_context(args.filename) as fout: fout.write_frames(convolution.frames) return 0 if __name__ == "__main__": common.call_main(main)
The music21 libaries have a lot of purposes beyond what I need so for now I think all I need is to know how to access the note pitches and their positions and durations within the work. From those three bits of info I can then construct a waveform representing that music given a tempo to define the length of a quarter note. """ import numpy from music21 import corpus from potty_oh.common import get_cmd_line_parser from potty_oh.common import call_main def main(): parser = get_cmd_line_parser(description=__doc__) parser.parse_args() work_path = numpy.random.choice(corpus.getComposer('bach')) work = corpus.parse(work_path) for note in work.flat.notes: print('{} [{}]: {} {}'.format(note.offset, note.duration.quarterLength, note.pitch, note.frequency)) return 0 if __name__ == "__main__": call_main(main)
common.ParserArguments.length(parser) common.ParserArguments.framerate(parser) common.ParserArguments.set_defaults(parser, type='constant', length=2.0) args = parser.parse_args() common.defaults.framerate = args.framerate sg = Generator(length=args.length, verbose=args.debug) key = Key() unison = sg.sin_constant(key.interval(Interval.unison)) maj_third = sg.sin_constant(key.interval(Interval.major_third)) min_third = sg.sin_constant(key.interval(Interval.minor_third)) fifth = sg.sin_constant(key.interval(Interval.fifth)) powerchord = unison.mix_down(fifth) maj_triad = powerchord.mix_down(maj_third) min_triad = mix_down(powerchord, min_third) with wav_file_context(args.filename) as fout: fout.write_frames(powerchord.frames) fout.write_frames(maj_triad.frames) fout.write_frames(min_triad.frames) return 0 if __name__ == "__main__": common.call_main(main)
The music21 libaries have a lot of purposes beyond what I need so for now I think all I need is to know how to access the note pitches and their positions and durations within the work. From those three bits of info I can then construct a waveform representing that music given a tempo to define the length of a quarter note. """ import numpy from music21 import corpus from potty_oh.common import get_cmd_line_parser from potty_oh.common import call_main def main(): parser = get_cmd_line_parser(description=__doc__) parser.parse_args() work_path = numpy.random.choice(corpus.getComposer('bach')) work = corpus.parse(work_path) for note in work.flat.notes: print('{} [{}]: {} {}'.format(note.offset, note.duration.quarterLength, note.pitch, note.frequency)) return 0 if __name__ == "__main__": call_main(main)