def test_available_subtypes():
subtypes = sf.available_subtypes()
assert 'PCM_24' in subtypes
assert 'FLOAT' in subtypes
assert 'VORBIS' in subtypes
subtypes = sf.available_subtypes('WAV')
assert 'PCM_24' in subtypes
assert 'FLOAT' in subtypes
assert 'VORBIS' not in subtypes
subtypes = sf.available_subtypes('nonsense')
assert subtypes == {}
def test_available_subtypes():
subtypes = sf.available_subtypes()
assert 'PCM_24' in subtypes
assert 'FLOAT' in subtypes
assert 'VORBIS' in subtypes
subtypes = sf.available_subtypes('WAV')
assert 'PCM_24' in subtypes
assert 'FLOAT' in subtypes
assert 'VORBIS' not in subtypes
subtypes = sf.available_subtypes('nonsense')
assert subtypes == {}
def cli(input_file, input_text, speed, tone, output_file, output_format,
output_subtype, list_formats, list_subtypes, letter_space_factor):
if list_formats:
for key, value in soundfile.available_formats().items():
click.echo('\x1b[1m{:<10}\x1b[0m {}'.format(key, value))
return
if list_subtypes:
for key, value in soundfile.available_subtypes(list_subtypes).items():
click.echo('\x1b[1m{:<10}\x1b[0m {}'.format(key, value))
return
if not input_text:
input_text = input_file.read()
options = dict(samplerate=44100,
channels=1,
subtype=output_subtype,
format=output_format)
with soundfile.SoundFile(output_file, 'w', **options) as fp:
stream_morse_code(fp,
input_text,
wpm=speed,
tone=tone,
letter_space_factor=letter_space_factor)
def find_soundfile_subtype(depth, default=16):
""" Find wav subtype for given bit depth"""
try:
subs = sf.available_subtypes("wav")
r = next(k for k in subs
if k.startswith("PCM") and k.endswith(str(depth)))
except StopIteration:
print("depth not available, default {} bits selected".format(default))
r = "PCM_{}".format(default)
return r
def change_format_and_subtype(audio_path):
audio, sr = sf.read(audio_path)
audio_info = sf.info(audio_path)
formats = ['WAV', 'FLAC']
if audio_info.format in formats:
formats.remove(audio_info.format)
_format = random.choice(formats)
subtypes = sf.available_subtypes(_format)
accepted_subtypes = ['PCM_16', 'PCM_32', 'PCM_24', 'FLOAT', 'DOUBLE']
subtypes = [s for s in subtypes.keys() if s in accepted_subtypes]
if audio_info.subtype in subtypes:
subtypes.remove(audio_info.subtype)
_subtype = random.choice(subtypes)
sf.write(audio_path, audio, sr, subtype=_subtype, format=_format)
import wave
import librosa
import soundfile as sf
import numpy as np
x, _ = librosa.load('./8bit_8000hz.WAV', sr=8000)
print(len(x))
sf.write('tmp.wav', x, 8000, 'PCM_U8')
# wave.open('tmp.wav','r')
# sf.write('stereo_file.flac', np.random.randn(10), 8000, 'PCM_S8')
print("fac types", sf.available_subtypes('FLAC'))
print("wav types", sf.available_subtypes('WAV'))
import soundfile as sf
if __name__ == '__main__':
print(sf.default_subtype('WAV'))
print(sf.available_subtypes('WAV'))
# DATA, SAMPLERATE = sf.read(file='test_in_32bit_float.wav', dtype='float32')
# sf.write(file='test_out_32bit_float.wav', data=DATA, samplerate=SAMPLERATE, subtype='PCM_16')
# read int -> float
# DATA, SAMPLERATE = sf.read(file='test_in_16bit_int.wav', dtype='float32')
# sf.write(file='test_out_32bit_float.wav', data=DATA, samplerate=SAMPLERATE, subtype='FLOAT')
# read float -> int
# DATA, SAMPLERATE = sf.read(file='test_in_32bit_float.wav', dtype='int16')
# sf.write(file='test_out_16bit_int.wav', data=DATA, samplerate=SAMPLERATE, subtype='PCM_16')
# write int -> float
# DATA, SAMPLERATE = sf.read(file='test_in_16bit_int.wav', dtype='int16')
# sf.write(file='test_out_32bit_float.wav', data=DATA, samplerate=SAMPLERATE, subtype='FLOAT')
# write float -> int
print(sf.info('test_in_32bit_float.wav', False))
DATA, SAMPLERATE = sf.read(file='test_in_32bit_float.wav', dtype='float32')
sf.write(file='test_out_16bit_int.wav',
data=DATA,
samplerate=SAMPLERATE,
subtype='PCM_16')
