def main():
parser = get_cmd_line_parser(description=__doc__)
ParserArguments.filename(parser)
ParserArguments.tempo(parser)
ParserArguments.framerate(parser)
ParserArguments.set_defaults(parser)
ParserArguments.best(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
song = Stream()
roots = 'ABCDEFG'
scales = [scale.MajorScale, scale.MinorScale,
scale.WholeToneScale, scale.ChromaticScale]
print('Choosing a random scale from Major, Minor, Whole Tone, Chromatic.')
rscale = random.choice(scales)(Pitch(random.choice(roots)))
print('Using: %s' % rscale.name)
print('Generating a score...')
random_note_count = 50
random_note_speeds = [0.5, 1]
print('100 Random 1/8th and 1/4th notes in rapid succession...')
for i in range(random_note_count):
note = Note(random.choice(rscale.pitches))
note.duration.quarterLength = random.choice(random_note_speeds)
song.append(note)
scale_practice_count = 4
print('Do the scale up and down a few times... maybe %s' %
scale_practice_count)
rev = rscale.pitches[:]
rev.reverse()
updown_scale = rscale.pitches[:]
updown_scale.extend(rev[1:-1])
print('updown scale: %s' % updown_scale)
for count, pitch in enumerate(cycle(updown_scale)):
print(' note %s, %s' % (count, pitch))
song.append(Note(pitch))
if count >= scale_practice_count * len(updown_scale):
break
print('Composition finished:')
song.show('txt')
if args.best:
print('Audifying the song to file "{}"...')
wave = audify_to_file(song, args.tempo, args.filename, verbose=True)
else:
wave = audify_basic(song, args.tempo, verbose=True)
print('Writing Song to file "{}"...'.format(args.filename))
with wav_file_context(args.filename) as fout:
fout.write_frames(wave.frames)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
print('1 second waveform at 1000Hz')
frequency_powers = analyze_window(
sig_gen.sin_constant(1000))
print("Frequency Powers found by FFT: ", frequency_powers)
print('\n0.5 second waveform at 880Hz')
frequency_powers = analyze_window(
sig_gen.sin_constant(880, length=0.5))
print("Frequency Powers found by FFT: ", frequency_powers)
print('\n0.75 second waveform at 1234Hz')
frequency_powers = analyze_window(
sig_gen.sin_constant(1234, length=0.75))
tmp = list(frequency_powers.items())
tmp.sort(key=lambda x: x[1], reverse=True)
print('{} present non-zero frequencies in signal. The most '
'powerfull frequencies are:\n{}'.format(
len(frequency_powers), '\n'.join([str(t) for t in tmp[:10]])))
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
print('0.2 second waveform at 1000Hz and 0.2 seconds at 440Hz '
'(starting 0.1 second in)')
signal = Waveform([])
signal = signal.insert(0, sig_gen.sin_constant(1000, length=0.2))
signal = signal.insert(seconds_to_frame(0.1),
sig_gen.sin_constant(440, length=0.2))
if args.plot:
plot.plot_waveform(signal.frames, 1, 0, 4000)
else:
with wav_file_context('signal.wav') as fout:
fout.write_frames(signal.frames)
spectrum = analyze_whole_waveform(signal)
print("Frequency Powers found by STFT: ")
timeslices = [(time, spec) for time, spec in spectrum.items()]
timeslices.sort(key=lambda x: x[0])
for timeslice in timeslices:
print(timeslice)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
print('0.2 second waveform at 1000Hz and 0.2 seconds at 440Hz '
'(starting 0.1 second in)')
signal = Waveform([])
signal = signal.insert(0, sig_gen.sin_constant(1000, length=0.2))
signal = signal.insert(seconds_to_frame(0.1),
sig_gen.sin_constant(440, length=0.2))
if args.plot:
plot.plot_waveform(signal.frames, 1, 0, 4000)
else:
with wav_file_context('signal.wav') as fout:
fout.write_frames(signal.frames)
spectrum = analyze_whole_waveform(signal)
print("Frequency Powers found by STFT: ")
timeslices = [(time, spec) for time, spec in spectrum.items()]
timeslices.sort(key=lambda x: x[0])
for timeslice in timeslices:
print(timeslice)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
print('1 second waveform at 1000Hz')
frequency_powers = analyze_window(sig_gen.sin_constant(1000))
print("Frequency Powers found by FFT: ", frequency_powers)
print('\n0.5 second waveform at 880Hz')
frequency_powers = analyze_window(sig_gen.sin_constant(880, length=0.5))
print("Frequency Powers found by FFT: ", frequency_powers)
print('\n0.75 second waveform at 1234Hz')
frequency_powers = analyze_window(sig_gen.sin_constant(1234, length=0.75))
tmp = list(frequency_powers.items())
tmp.sort(key=lambda x: x[1], reverse=True)
print('{} present non-zero frequencies in signal. The most '
'powerfull frequencies are:\n{}'.format(
len(frequency_powers), '\n'.join([str(t) for t in tmp[:10]])))
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
ParserArguments.filename(parser)
ParserArguments.tempo(parser)
ParserArguments.framerate(parser)
ParserArguments.set_defaults(parser)
ParserArguments.best(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
print('Generating Signal:')
sig_gen = Generator()
song = Waveform([])
qnl = quarter_note_length(args.tempo)
# work = corpus.parse(numpy.random.choice(corpus.getComposer('bach')))
work = corpus.parse(numpy.random.choice(corpus.getCorePaths()))
notes = work.flat.notes
if args.best:
audify_to_file(notes, args.tempo, args.filename, args.verbose)
return 0
note_count = len(notes)
try:
for count, note in enumerate(notes):
print('{}/{}: {} [{}]: {} {}'.format(count, note_count,
note.offset,
note.duration.quarterLength,
note.pitch,
note.pitch.frequency))
note_length = qnl * note.quarterLength
start = seconds_to_frame(qnl * note.offset)
print(' inserting {} seconds into frame {}'.format(
note_length, start))
song = song.insert(
start,
sig_gen.sin_constant(note.pitch.frequency, length=note_length))
except KeyboardInterrupt:
print('Stopping song generating here...')
print('Writing Song {} to file {}...'.format(work.corpusFilepath,
args.filename))
with wav_file_context(args.filename) as fout:
fout.write_frames(song.frames)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
ParserArguments.filename(parser)
ParserArguments.tempo(parser)
ParserArguments.framerate(parser)
parser.add_argument('-r', '--repo', help='The git repository to use.')
ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
repo_data = scrape_repository_data(args.repo)
song = compose_repository_song(repo_data)
notes = song.flat.notes
waveform = audify(notes, args.tempo, args.verbose)
with wav_file_context(args.filename) as fout:
fout.write_frames(waveform.frames)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
ParserArguments.filename(parser)
ParserArguments.tempo(parser)
ParserArguments.framerate(parser)
ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
print('Generating Signal:')
work = corpus.parse(numpy.random.choice(corpus.getCorePaths()))
notes = work.flat.notes
waveform = audify(notes, args.tempo, args.verbose)
print('Writing Song {} to file {}...'.format(work.corpusFilepath,
args.filename))
with wav_file_context(args.filename) as fout:
fout.write_frames(waveform.frames)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
ParserArguments.filename(parser)
ParserArguments.tempo(parser)
ParserArguments.framerate(parser)
ParserArguments.set_defaults(parser)
args = parser.parse_args()
defaults.framerate = args.framerate
print('Generating Signal:')
work = corpus.parse(numpy.random.choice(corpus.getCorePaths()))
notes = work.flat.notes
waveform = audify(notes, args.tempo, args.verbose)
print('Writing Song {} to file {}...'.format(
work.corpusFilepath, args.filename))
with wav_file_context(args.filename) as fout:
fout.write_frames(waveform.frames)
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
parser.add_argument('--phase',
help="Run the experiment with a given phase value.",
type=float,
default=0.0)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
phase = 0 if not hasattr(args, 'phase') else args.phase
signal = sig_gen.sin_constant(440, length=0.05, phase=phase % (2 * pi))
freq, power_domain, freq_domain = do_fft(signal)
try:
_, subplots = pyplot.subplots(1, 2)
subplots[0].plot(power_domain)
subplots[0].set_title('Power Domain')
subplots[1].plot(freq_domain)
subplots[1].set_title('Freq Domain')
pyplot.show()
_, subplots = pyplot.subplots(1, 2)
subplots[0].plot(real(freq_domain))
subplots[0].set_title('Real Freq. Domain')
subplots[1].plot(imag(freq_domain))
subplots[1].set_title('Imaginary Freq. Domain')
pyplot.show()
finally:
pyplot.close()
return 0
def main():
parser = get_cmd_line_parser(description=__doc__)
parser = ParserArguments.filename(parser)
parser = ParserArguments.plot(parser)
parser = ParserArguments.framerate(parser)
parser = ParserArguments.set_defaults(parser)
parser.add_argument(
'--phase', help="Run the experiment with a given phase value.",
type=float, default=0.0)
args = parser.parse_args()
defaults.framerate = args.framerate
sig_gen = Generator(verbose=args.debug)
phase = 0 if not hasattr(args, 'phase') else args.phase
signal = sig_gen.sin_constant(440, length=0.05, phase=phase % (2 * pi))
freq, power_domain, freq_domain = do_fft(signal)
try:
_, subplots = pyplot.subplots(1, 2)
subplots[0].plot(power_domain)
subplots[0].set_title('Power Domain')
subplots[1].plot(freq_domain)
subplots[1].set_title('Freq Domain')
pyplot.show()
_, subplots = pyplot.subplots(1, 2)
subplots[0].plot(real(freq_domain))
subplots[0].set_title('Real Freq. Domain')
subplots[1].plot(imag(freq_domain))
subplots[1].set_title('Imaginary Freq. Domain')
pyplot.show()
finally:
pyplot.close()
return 0