def mul_stereo(fileName, width, lfactor, rfactor):
lsample = audioop.tomono(fileName, width, 1, 0)
rsample = audioop.tomono(fileName, width, 0, 1)
lsample = audioop.mul(lsample, width, lfactor)
rsample = audioop.mul(rsample, width, rfactor)
lsample = audioop.tostereo(lsample, width, 1, 0)
rsample = audioop.tostereo(rsample, width, 0, 1)
return audioop.add(lsample, rsample, width)
def mul_stereo(fileName,width,lfactor,rfactor):
lsample = audioop.tomono(fileName, width, 1, 0)
rsample = audioop.tomono(fileName,width, 0, 1)
lsample = audioop.mul(lsample,width,lfactor)
rsample = audioop.mul(rsample, width,rfactor)
lsample = audioop.tostereo(lsample, width, 1, 0)
rsample = audioop.tostereo(rsample, width, 0, 1)
return audioop.add(lsample,rsample,width)
def test_tostereo(self):
for w in 1, 2, 4:
data1 = datas[w]
data2 = bytearray(2 * len(data1))
for k in range(w):
data2[k::2*w] = data1[k::w]
self.assertEqual(audioop.tostereo(data1, w, 1, 0), data2)
self.assertEqual(audioop.tostereo(data1, w, 0, 0), b'\0' * len(data2))
for k in range(w):
data2[k+w::2*w] = data1[k::w]
self.assertEqual(audioop.tostereo(data1, w, 1, 1), data2)
def pan(slice, pan_pos=0.5, amp=1.0):
amps = pantamp(pan_pos)
lslice = audioop.tomono(slice, audio_params[1], 1, 0)
lslice = audioop.tostereo(lslice, audio_params[1], amps[0], 0)
rslice = audioop.tomono(slice, audio_params[1], 0, 1)
rslice = audioop.tostereo(rslice, audio_params[1], 0, amps[1])
slice = audioop.add(lslice, rslice, audio_params[1])
return audioop.mul(slice, audio_params[1], amp)
def pan(slice, pan_pos=0.5, amp=1.0):
amps = pantamp(pan_pos)
lslice = audioop.tomono(slice, audio_params[1], 1, 0)
lslice = audioop.tostereo(lslice, audio_params[1], amps[0], 0)
rslice = audioop.tomono(slice, audio_params[1], 0, 1)
rslice = audioop.tostereo(rslice, audio_params[1], 0, amps[1])
slice = audioop.add(lslice, rslice, audio_params[1])
return audioop.mul(slice, audio_params[1], amp)
def _convert_data(self, data: bytes, to_depth: int, to_channels: int,
to_rate: int, to_unsigned: bool = False) -> bytes:
"""Convert audio data."""
out_width = to_depth // 8
if self._from_float:
ldata = audioop.tomono(data, self._width, 1, 0)
rdata = audioop.tomono(data, self._width, 0, 1)
for mono_data in [ldata, rdata]:
float_array = array('f', mono_data)
out_array = array('i' if self._out_depth > 16 else 'h')
for i in float_array:
if i > 1.0:
i = 1.0
elif i < -1.0:
i = -1.0
out_array.append(round(i * 32767.0))
mono_data = out_array.tobytes()
ldata = audioop.tostereo(ldata, self._width, 1, 0)
rdata = audioop.tostereo(rdata, self._width, 0, 1)
data = audioop.add(ldata, rdata, self._width)
if self._to_alaw:
data = audioop.lin2alaw(data, self._width)
if self._depth != to_depth:
data = audioop.lin2lin(
data,
self._width,
out_width
)
if self._unsigned != to_unsigned:
data = audioop.bias(data, out_width, 128)
# Make it stereo
if self._channels < to_channels:
data = audioop.tostereo(data, out_width, 1, 1)
# Make it mono
elif self._channels > to_channels:
data = audioop.tomono(data, out_width, 1, 1)
# Convert the sample rate of the data to the requested rate.
if self._rate != to_rate and data:
data, self._state = audioop.ratecv(
data,
out_width,
to_channels,
self._rate,
to_rate,
self._state,
)
return data
def test_tostereo(self):
for w in 1, 2, 4:
data1 = datas[w]
data2 = bytearray(2 * len(data1))
for k in range(w):
data2[k :: 2 * w] = data1[k::w]
self.assertEqual(audioop.tostereo(data1, w, 1, 0), data2)
self.assertEqual(audioop.tostereo(data1, w, 0, 0), b"\0" * len(data2))
for k in range(w):
data2[k + w :: 2 * w] = data1[k::w]
self.assertEqual(audioop.tostereo(data1, w, 1, 1), data2)
def testtostereo(data): data2 = '' for d in data[0]: data2 = data2 + d + d if audioop.tostereo(data[0], 1, 1, 1) <> data2: return 0 return 1
def raw_read(self):
"""Return some amount of data as a raw audio string"""
buf = self.source.raw_read()
if buf is None:
self.eof = True
return None
# Convert channels as needed
if self.set_channels and self.source.channels() != self.set_channels:
if self.set_channels == 1:
buf = audioop.tomono(buf, self.source.raw_width(), .5, .5)
else:
buf = audioop.tostereo(buf, self.source.raw_width(), 1, 1)
# Convert sampling rate as needed
if self.set_sampling_rate and self.source.sampling_rate() != self.set_sampling_rate:
(buf, self.ratecv_state) = audioop.ratecv(buf, self.source.raw_width(), self.channels(), self.source.sampling_rate(), self.set_sampling_rate, self.ratecv_state)
if self.set_raw_width and self.source.raw_width() != self.set_raw_width:
if self.source.raw_width() == 1 and self.source.has_unsigned_singles():
buf = audioop.bias(buf, 1, -128)
buf = audioop.lin2lin(buf, self.source.raw_width(), self.set_raw_width)
if self.set_raw_width == 1 and self.source.has_unsigned_singles():
buf = audioop.bias(buf, 1, 128)
return buf
def to44KStereo(self, buffer):
try:
b = audioop.tostereo(buffer.data, 2, 1, 1)
b, self.fromstate = audioop.ratecv(b, 2, 2, 8000, 44100, self.fromstate)
except audioop.error:
return ''
return b
def coerce_lin(source_aiff, template_obj):
'''Read data from source, and convert it to match template's params.'''
import audioop
frag = source_aiff.read_lin()
Ss = source_aiff.stream
St = template_obj.stream
# Sample width
if Ss.getsampwidth() != St.getsampwidth():
print 'coerce sampwidth %i -> %i' %(Ss.getsampwidth(), St.getsampwidth())
frag = audioop.lin2lin(frag, Ss.getsampwidth(), St.getsampwidth())
width = St.getsampwidth()
# Channels
if Ss.getnchannels() != St.getnchannels():
print 'coerce nchannels %i -> %i' %(Ss.getnchannels(), St.getnchannels())
if Ss.getnchannels()==2 and St.getnchannels()==1:
frag = audioop.tomono(frag, width, 0.5, 0.5)
elif Ss.getnchannels()==1 and St.getnchannels()==2:
frag = audioop.tostereo(frag, width, 1.0, 1.0)
else:
print "Err: can't match channels"
# Frame rate
if Ss.getframerate() != St.getframerate():
print 'coerce framerate %i -> %i' %(Ss.getframerate(), St.getframerate())
frag,state = audioop.ratecv(
frag, width,
St.getnchannels(),
Ss.getframerate(), # in rate
St.getframerate(), # out rate
None, 2,1
)
return frag
def encode(self, frame, force_keyframe=False):
assert frame.format.name == 's16'
assert frame.layout.name in ['mono', 'stereo']
channels = len(frame.layout.channels)
data = bytes(frame.planes[0])
timestamp = frame.pts
# resample at 48 kHz
if frame.sample_rate != SAMPLE_RATE:
data, self.rate_state = audioop.ratecv(data, SAMPLE_WIDTH,
channels, frame.sample_rate,
SAMPLE_RATE,
self.rate_state)
timestamp = (timestamp * SAMPLE_RATE) // frame.sample_rate
# convert to stereo
if channels == 1:
data = audioop.tostereo(data, SAMPLE_WIDTH, 1, 1)
length = lib.opus_encode(self.encoder,
ffi.cast('int16_t*', ffi.from_buffer(data)),
SAMPLES_PER_FRAME, self.cdata,
len(self.cdata))
assert length > 0
return [self.buffer[0:length]], timestamp
def convert_to(self,
data: bytes,
to_depth: int,
to_channels: int,
to_rate: int,
to_unsigned: bool = False) -> bytes:
"""Convert audio data."""
dest_width = to_depth // 8
print(to_depth, self._depth)
if self._depth != to_depth:
if self._depth == 8:
data = audioop.bias(data, 1, 128)
data = audioop.lin2lin(data, self._width, dest_width)
if to_depth == 8:
data = audioop(data, 1, 128)
if self._unsigned != to_unsigned:
data = audioop.bias(data, dest_width, 128)
# Make it stereo
if self._channels < to_channels:
data = audioop.tostereo(data, dest_width, 1, 1)
# Make it mono
elif self._channels > to_channels:
data = audioop.tomono(data, dest_width, 1, 1)
# print(dest_width)
# Convert the sample rate of the data to the requested rate.
if self._rate != to_rate and data:
data, self._state = audioop.ratecv(data, dest_width, to_channels,
self._rate, to_rate,
self._state, 2, 1)
return data
def to_stereo(self):
if self.channels == 2:
return self
elif self.channels == 1:
return Audio(channels=2, width=self.width, rate=self.rate, data=audioop.tostereo(self.data, self.width, 0.5, 0.5))
else:
raise ValueError(f"Can't convert audio with channels={self.channels}")
def _combine_audio(self):
"""Combines all audio in self.files into one song of raw audio."""
if len(self.files) == 0:
return None
elif len(self.files) == 1:
return self.files[0].data
# Find length of longest audiofile.
longest = 0
for file in self.files:
length = len(file.data)
if file.info.get('channels', 2) == 1:
# Mono segments will be doubled when converted to stereo.
length *= 2
if length > longest:
longest = length
combined = bytes(longest)
for file in self.files:
data = file.data
# Convert to stereo if mono.
if file.info.get('channels', 2) == 1:
data = audioop.tostereo(data, int(IMPORT_WIDTH / 8), 1, 1)
data += bytes(longest - len(data))
combined = audioop.add(combined, data, int(IMPORT_WIDTH / 8))
return combined
def to44KStereo(self, buffer):
try:
b = audioop.tostereo(buffer.data, 2, 1, 1)
b, self.fromstate = audioop.ratecv(b, 2, 2, 8000, 44100, self.fromstate)
except audioop.error:
return ''
return b
def normalize(self) -> 'Sample':
"""
Normalize the sample, meaning: convert it to the default samplerate, sample width and number of channels.
When mixing samples, they should all have the same properties, and this method is ideal to make sure of that.
"""
if self.__locked:
raise RuntimeError("cannot modify a locked sample")
self.resample(params.norm_samplerate)
if self.samplewidth != params.norm_samplewidth:
# Convert to desired sample size.
self.__frames = audioop.lin2lin(self.__frames, self.samplewidth,
params.norm_samplewidth)
self.__samplewidth = params.norm_samplewidth
if params.norm_nchannels not in (1, 2):
raise ValueError(
"norm_nchannels has invalid value, can only be 1 or 2")
if self.nchannels == 1 and params.norm_nchannels == 2:
# convert to stereo
self.__frames = audioop.tostereo(self.__frames, self.samplewidth,
1, 1)
self.__nchannels = 2
elif self.nchannels == 2 and params.norm_nchannels == 1:
# convert to mono
self.__frames = audioop.tomono(self.__frames, self.__samplewidth,
1, 1)
self.__nchannels = 1
return self
def write(self, data):
if not hasattr(self, 'LC'):
return
assert self.isOpen(), "calling write() on closed %s" % (self, )
if self.writechannels == 2:
data = audioop.tostereo(data, 2, 1, 1)
wrote = self.writedev.write(data)
if not wrote: log.msg("ALSA overrun")
def write(self, data):
if not hasattr(self, 'LC'):
return
assert self.isOpen(), "calling write() on closed %s"%(self,)
if self.writechannels == 2:
data = audioop.tostereo(data, 2, 1, 1)
wrote = self.writedev.write(data)
if not wrote: log.msg("ALSA overrun")
def testtostereo(data):
if verbose:
print 'tostereo'
data2 = ''
for d in data[0]:
data2 = data2 + d + d
if audioop.tostereo(data[0], 1, 1, 1) <> data2:
return 0
return 1
def testtostereo(data):
if verbose:
print 'tostereo'
data2 = ''
for d in data[0]:
data2 = data2 + d + d
if audioop.tostereo(data[0], 1, 1, 1) != data2:
return 0
return 1
def doPanning(self, buf):
"""
Calculate panning levels for the specified buffer.
Will return a new bytes-like object of the same length as buf.
"""
if self.panning == 0.0:
return buf
left = audioop.tomono(buf, SAMPLE_WIDTH, 1, 0)
right = audioop.tomono(buf, SAMPLE_WIDTH, 0, 1)
left = audioop.mul(left, SAMPLE_WIDTH, (self.panning - 1) / 2)
right = audioop.mul(right, SAMPLE_WIDTH, (self.panning + 1) / 2)
left = audioop.tostereo(left, SAMPLE_WIDTH, 1, 0)
right = audioop.tostereo(right, SAMPLE_WIDTH, 0, 1)
return audioop.add(left, right, SAMPLE_WIDTH)
def _monoToStereo(fn, leftBalance, rightBalance):
audiofile = wave.open(fn, "r")
params = audiofile.getparams()
sampwidth = params[1]
nframes = params[3]
waveData = audiofile.readframes(nframes)
sample = audioop.tostereo(waveData, sampwidth,
leftBalance, rightBalance)
return sample, params
async def source(self, session):
data = await fetch_voice_data(
session=session,
token=self.google_cloud_token,
text=self.text,
language_code=self.language,
name=self.voice_setting.voice[self.language],
rate=self.voice_setting.speed,
pitch=self.voice_setting.pitch,
)
return discord.PCMAudio(io.BytesIO(audioop.tostereo(data, 2, 1, 1)))
def _monoToStereo(fn, leftBalance, rightBalance):
audiofile = wave.open(fn, "r")
params = audiofile.getparams()
sampwidth = params[1]
nframes = params[3]
waveData = audiofile.readframes(nframes)
sample = audioop.tostereo(waveData, sampwidth, leftBalance,
rightBalance)
return sample, params
def read(self, size: int = -1) -> bytes:
"""Convert audio.
Convert the samples to the given rate and makes it mono or stereo
depending on the channels value.
"""
data = self._buffer
while len(data) < size:
temp_data = self._source.read()
if not temp_data:
if len(data) != 0:
data += b'\x00' * (size - len(data))
break
if self._source._floatp and not self._floatp:
in_array = array('f', temp_data)
out_array = array(f"{'h' if self._depth <= 16 else 'i'}")
for i in in_array:
if i >= 1.0:
out_array.append(32767)
elif i <= -1.0:
out_array.append(-32768)
else:
out_array.append(math.floor(i * 32768.0))
temp_data = out_array.tobytes()
# Convert audio data from source width to self._width.
if self._depth != self._source.depth:
temp_data = audioop.lin2lin(temp_data, self._source._width,
self._width)
if self._unsigned != self._source.unsigned:
temp_data = audioop.bias(temp_data, self._source._width, 128)
# Make it stereo
if self._source.channels < self._channels:
temp_data = audioop.tostereo(temp_data, self._width, 1, 1)
# Make it mono
elif self._source.channels > self._channels:
temp_data = audioop.tomono(temp_data, self._width, 1, 1)
# Convert the sample rate of the data to the requested rate.
if self._rate != self._source.rate and temp_data:
temp_data, self._state = audioop.ratecv(
temp_data, self._width, self._channels, self._source.rate,
self._rate, self._state)
data += temp_data
self._buffer = data[size:]
return data[:size]
def write_audio( audio_buf, filename, sample_rate=RATE, stereo=True ):
"""parameter is a mono audio file. If flag @stereo is set, then the
output file is stereo with one silent channel (this is useful if the
file is going to be used as a sonar emission)."""
# convert mono audio buffer to stereo
# below, parameters are ( buffer, width, lfactor, rfactor)
if( stereo ):
if SPEAKER=='right':
audio_buf = audioop.tostereo( audio_buf, 2, 0, 1 )
else: # SPEAKER=='left'
audio_buf = audioop.tostereo( audio_buf, 2, 1, 0 )
wfile = wave.open( filename, 'w' )
if( stereo ):
wfile.setnchannels(2)
else:
wfile.setnchannels(1)
wfile.setsampwidth(2) # two bytes == 16 bit
wfile.setframerate(sample_rate)
wfile.writeframes( audio_buf )
wfile.close()
async def source(self, session):
data = await fetch_voice_data(
session=session,
token=self.bot.google_cloud_token,
text=self.text,
language_code=LANGUAGES[self.language],
name=convert_voice_name(LANGUAGES[self.language],
self.voice_setting.voice[self.language]),
rate=self.voice_setting.speed,
pitch=self.voice_setting.pitch,
)
source = discord.PCMAudio(io.BytesIO(audioop.tostereo(data, 2, 1, 1)))
return discord.PCMVolumeTransformer(source, volume=0.4)
def dump_wav(fn, samples, params, stereo=True):
with wave.open(fn, mode='wb') as audio_file:
audio_file.setparams(params)
if stereo:
audio_file.setnchannels(2)
ch_left, ch_right = list(zip(*samples))
left_bytes = audioop.tostereo(array.array('h', ch_left),
params.sampwidth, 1, 0)
right_bytes = audioop.tostereo(array.array('h', ch_right),
params.sampwidth, 0, 1)
sample_bytes = audioop.add(left_bytes, right_bytes,
params.sampwidth)
else:
audio_file.setnchannels(1)
sample_bytes = array.array('h', samples)
audio_file.writeframesraw(sample_bytes)
def resample(self,
data,
freq=44100,
bits=8,
signed=0,
channels=1,
byteorder=None):
"Convert a sample to the mixer's own format."
bytes = bits / 8
byteorder = byteorder or sys.byteorder
if (freq, bytes, signed, channels, byteorder) == self.parameters:
return data
# convert to native endianness
if byteorder != sys.byteorder:
data = byteswap(data, bytes)
byteorder = sys.byteorder
# convert unsigned -> signed for the next operations
if not signed:
data = audioop.bias(data, bytes, -(1 << (bytes * 8 - 1)))
signed = 1
# convert stereo -> mono
while channels > self.channels:
assert channels % 2 == 0
data = audioop.tomono(data, bytes, 0.5, 0.5)
channels /= 2
# resample to self.freq
if freq != self.freq:
data, ignored = audioop.ratecv(data, bytes, channels, freq,
self.freq, None)
freq = self.freq
# convert between 8bits and 16bits
if bytes != self.bytes:
data = audioop.lin2lin(data, bytes, self.bytes)
bytes = self.bytes
# convert mono -> stereo
while channels < self.channels:
data = audioop.tostereo(data, bytes, 1.0, 1.0)
channels *= 2
# convert signed -> unsigned
if not self.signed:
data = audioop.bias(data, bytes, 1 << (bytes * 8 - 1))
signed = 0
# convert to mixer endianness
if byteorder != self.byteorder:
data = byteswap(data, bytes)
byteorder = self.byteorder
# done
if (freq, bytes, signed, channels, byteorder) != self.parameters:
raise ValueError, 'sound sample conversion failed'
return data
def to_stereo(self, right=None):
'Convert mono audio to stereo'
if right is None: right = self
if self.params.nchannels != 1 or right.params.nchannels != 1:
raise PcmValueError('Mono audio required')
if self.params.framerate != right.params.framerate:
raise PcmValueError('Channels have different frame rate')
if self.params.nframes != right.params.nframes:
raise PcmValueError('Channels have different length')
left, right = self._adjust_both(right)
return self.__class__(left.params,
audioop.add(
audioop.tostereo(left.frames,
left.params.sampwidth, 1,
0),
audioop.tostereo(right.frames,
right.params.sampwidth, 0,
1), left.params.sampwidth),
nchannels=2)
def audio_stereo_out(sig_meas,fs,n_chan):
global stream
#converts the signal to a stereo signal
stereoaudio = audioop.tostereo(sig_meas, 2, 1, 1)
#DEBUG sna=len(stereoaudio)
#DEBUG print sna
# save .wav file
sf = wave.open("/tmp/amg2025/meas_stereo.wav", 'w')
sf.setparams((n_chan, 2, fs, 0, 'NONE', 'no compression'))
sf.writeframesraw(stereoaudio)
sf.close()
stream.write(stereoaudio)
def normalize(self):
"""
Normalize the sample, meaning: convert it to the default samplerate, sample width and number of channels.
When mixing samples, they should all have the same properties, and this method is ideal to make sure of that.
"""
assert not self.__locked
self.resample(self.norm_samplerate)
if self.samplewidth != self.norm_samplewidth:
# Convert to 16 bit sample size.
self.__frames = audioop.lin2lin(self.__frames, self.samplewidth, self.norm_samplewidth)
self.__samplewidth = self.norm_samplewidth
if self.nchannels == 1:
# convert to stereo
self.__frames = audioop.tostereo(self.__frames, self.samplewidth, 1, 1)
self.__nchannels = 2
return self
def audio_stereo_out(sig_meas, fs, n_chan):
global stream
#converts the signal to a stereo signal
stereoaudio = audioop.tostereo(sig_meas, 2, 1, 1)
#DEBUG sna=len(stereoaudio)
#DEBUG print sna
# save .wav file
sf = wave.open("/tmp/amg2025/meas_stereo.wav", 'w')
sf.setparams((n_chan, 2, fs, 0, 'NONE', 'no compression'))
sf.writeframesraw(stereoaudio)
sf.close()
stream.write(stereoaudio)
def speeker(): try: while True: try: data = audioChunks.get(True, 1) except Queue.Empty: if is_stopped: global is_stopped is_stopped = False else: stream.write(audioop.tostereo(data, 2, 1, 1)) audioChunks.task_done() if stop_check(): stop() finally: print "closeing" stream.close() p.terminate()
def read(self, size=None):
""" Convert the samples to the given rate and makes it mono or stereo
depending on the channels value. The data is buffered so
"""
if not audioop:
print("audioop not found so returning empty byte")
return b'\x00'
data = self._buffer
while len(data) < size:
temp_data = self._source.read()
if not temp_data:
if len(data) != 0:
data += b'\x00' * (size - len(data))
break
if self._depth != self._source.depth:
temp_data = audioop.lin2lin(temp_data, self._source._width,
self._width)
if self._unsigned != self._source.unsigned:
temp_data = audioop.bias(temp_data, self._source._width, 128)
# Make it stereo
if self._source.channels < self._channels:
temp_data = audioop.tostereo(temp_data, self._width, 1, 1)
# Make it mono
elif self._source.channels > self._channels:
temp_data = audioop.tomono(temp_data, self._width, 1, 1)
# Convert the sample rate of the data to the requested rate.
if self._rate != self._source.rate and temp_data:
temp_data, self._state = audioop.ratecv(temp_data, self._width,
self._channels,
self._source.rate,
self._rate,
self._state)
data += temp_data
self._buffer = data[size:]
return data[:size]
def make_pcm(content: bytes) -> io.BytesIO:
"""
wavのファイルからヘッダーを取り除き、フレームレートなどを合わせます。
:param content: wavのデータ
:return: 出力するPCM
"""
with wave.open(io.BytesIO(content)) as wav:
bit = wav.getsampwidth()
pcm = wav.readframes(wav.getnframes())
if bit != 2:
pcm = audioop.lin2lin(pcm, bit, 2)
if wav.getnchannels() == 1:
pcm = audioop.tostereo(pcm, 2, 1, 1)
if wav.getframerate() != 48000:
pcm = audioop.ratecv(pcm, 2, 2, wav.getframerate(), 48000, None)[0]
return io.BytesIO(pcm)
def stereo(self, left_factor=1.0, right_factor=1.0):
"""
Turn a mono sample into a stereo one with given factors/amplitudes for left and right channels.
Note that it is a fast but simplistic conversion; the waveform in both channels is identical
so you may suffer from phase cancellation when playing the resulting stereo sample.
If the sample is already stereo, the left/right channel separation is changed instead.
"""
assert not self.__locked
if self.__nchannels == 2:
# first split the left and right channels and then remix them
right = self.copy().right()
self.left().amplify(left_factor)
return self.stereo_mix(right, 'R', right_factor)
if self.__nchannels == 1:
self.__frames = audioop.tostereo(self.__frames, self.__samplewidth, left_factor, right_factor)
self.__nchannels = 2
return self
raise ValueError("sample must be mono or stereo already")
def normalize(self):
"""
Normalize the sample, meaning: convert it to the default samplerate, sample width and number of channels.
When mixing samples, they should all have the same properties, and this method is ideal to make sure of that.
"""
assert not self.__locked
self.resample(self.norm_samplerate)
if self.samplewidth != self.norm_samplewidth:
# Convert to 16 bit sample size.
self.__frames = audioop.lin2lin(self.__frames, self.samplewidth,
self.norm_samplewidth)
self.__samplewidth = self.norm_samplewidth
if self.nchannels == 1:
# convert to stereo
self.__frames = audioop.tostereo(self.__frames, self.samplewidth,
1, 1)
self.__nchannels = 2
return self
def speeker():
try:
while True:
try:
data = audioChunks.get(True, 1)
except Queue.Empty:
if is_stopped:
global is_stopped
is_stopped = False
else:
stream.write(audioop.tostereo(data, 2, 1, 1))
audioChunks.task_done()
if stop_check():
stop()
finally:
print "closeing"
stream.close()
p.terminate()
def stereo(self, left_factor=1.0, right_factor=1.0):
"""
Turn a mono sample into a stereo one with given factors/amplitudes for left and right channels.
Note that it is a fast but simplistic conversion; the waveform in both channels is identical
so you may suffer from phase cancellation when playing the resulting stereo sample.
If the sample is already stereo, the left/right channel separation is changed instead.
"""
assert not self.__locked
if self.__nchannels == 2:
# first split the left and right channels and then remix them
right = self.copy().right()
self.left().amplify(left_factor)
return self.stereo_mix(right, 'R', right_factor)
if self.__nchannels == 1:
self.__frames = audioop.tostereo(self.__frames, self.__samplewidth,
left_factor, right_factor)
self.__nchannels = 2
return self
raise ValueError("sample must be mono or stereo already")
def normalize(self) -> 'Sample':
"""
Normalize the sample, meaning: convert it to the default samplerate, sample width and number of channels.
When mixing samples, they should all have the same properties, and this method is ideal to make sure of that.
"""
if self.__locked:
raise RuntimeError("cannot modify a locked sample")
self.resample(params.norm_samplerate)
if self.samplewidth != params.norm_samplewidth:
# Convert to 16 bit sample size.
self.__frames = audioop.lin2lin(self.__frames, self.samplewidth,
params.norm_samplewidth)
self.__samplewidth = params.norm_samplewidth
if self.nchannels == 1:
# convert to stereo
self.__frames = audioop.tostereo(self.__frames, self.samplewidth,
1, 1)
self.__nchannels = 2
return self
def Removevoice(self):
self.createMessage("")
f = self.selectedFile
if(f==None):
showinfo("Warning!","Please upload or create a file first")
return
if(f.removevoiceval==False):
rate = 44100
self.removevoice["bg"]= "dark green"
wf = wave.open(f.file_path)
data = numpy.fromstring(wf.readframes(wf.getnframes()),
dtype=numpy.int16)
CHANNELS = wf.getnchannels()
if(CHANNELS!=2):
showinfo("Warning!", "File must be Stereo and not Mono")
self.removevoice["bg"]= "black"
else:
f.tempFile = True
self.createMessage("Processing...")
#Each channel is saved alternately and hence, this idea
# can be used in conjunction with the fact that voice
#samples are generally present in all channels to eliminate
# the voice. Here, I use stereo, and hence the below method.
f.tempVoiceRemovedMono = data[0::2] - data[1::2]
f.tempVoiceRemovedStereo = audioop.tostereo(f.tempVoiceRemovedMono, 2, 1, 1)
f.tempFileArray = numpy.fromstring(f.tempVoiceRemovedStereo,dtype=numpy.int16)
f.removevoiceval = True
self.createMessage("Done!")
(nchannels,sampwidth,framerate,nframes,comptype,compname) = (2,2,44100,
len(f.tempVoiceRemovedStereo),
"NONE", "not compressed")
f.tempfileparameters = (nchannels,sampwidth,framerate,nframes,comptype,compname)
wf.close()
f.destroy()
f.plot(self,rate,'temp')
self.removevoice["bg"]= "black"
else:
self.removevoiceval = True
self.removevoice["bg"]= "black"
def read(filename):
""" Read a 44.1k / 16bit WAV file from disk with the Python wave module.
Mono files are converted to stereo automatically. """
if not quiet: print 'loading', filename
file = wave.open(filename, "r")
file_frames = file.readframes(file.getnframes())
snd = Sound()
# check for mono files
if file.getnchannels() == 1:
file_frames = audioop.tostereo(file_frames, file.getsampwidth(), 0.5, 0.5)
snd.params = file.getparams()
snd.params = (2, snd.params[1], snd.params[2], snd.params[3], snd.params[4], snd.params[5])
else:
snd.params = file.getparams()
snd.data = file_frames
return snd
def _tostereo(self, output):
return [tostereo(o, self.bytes, n % 2, (n + 1) % 2) for n, o in enumerate(output)]
def write(self, data):
from audioop import tostereo
if self._channels == 2:
data = tostereo(data, 2, 1, 1)
self.dev.write(data)
def test_tostereo(self):
data2 = ''
for d in data[0]:
data2 = data2 + d + d
self.assertEqual(audioop.tostereo(data[0], 1, 1, 1), data2)
def loop(self):
"""Master loop"""
import os.path
import audioop
silent = "\x00" * settings.STEREO_CHUNK_SIZE
self.mumble.users.myself.texture(self.load_bitmap(settings.STOP_BITMAP))
while self.mumble.is_alive() and not self.exit:
while not self.stdin_q.empty():
line = self.stdin_q.get()
self.cmd(line)
if ( ( self.recording and not self.force_stop ) or self.force_start ) and not self.force_newfile:
if not self.audio_file:
# Start recording
# ask the pymumble library to handle incoming audio
self.mumble.set_receive_sound(True)
# signal the others I'm recording (to be fair)
self.mumble.users.myself.recording()
# Change the recorder avatar
self.mumble.users.myself.texture(self.load_bitmap(settings.START_BITMAP))
# time of the start of the recording
self.cursor_time = time.time() - settings.BUFFER
# Assemble file name
audio_file_name = os.path.join(settings.SAVEDIR, "mumble-%s" % time.strftime("%Y%m%d-%H%M%S"))
print "Starting new Recording"
self.audio_file = AudioFile(audio_file_name, self.settings["OUTPUT"])
self.cmd_log.info("RECORDING START")
if self.cursor_time < time.time() - settings.BUFFER: # it's time to check audio
base_sound = copy.copy(silent)
for user in self.mumble.users.values(): # check the audio queue of each users
session = user["session"]
while ( user.sound.is_sound() and
user.sound.first_sound().time < self.cursor_time):
user.sound.get_sound(settings.FLOAT_RESOLUTION) # forget about too old sounds
if user.sound.is_sound():
if ( user.sound.first_sound().time >= self.cursor_time and
user.sound.first_sound().time < self.cursor_time + settings.FLOAT_RESOLUTION ):
# available sound is to be treated now and not later
sound = user.sound.get_sound(settings.FLOAT_RESOLUTION)
if sound.target == 0: # take care of the stereo feature
stereo_pcm = audioop.tostereo(sound.pcm, 2, *self.users[session]["stereo"])
else:
stereo_pcm = audioop.tostereo(sound.pcm, 2, 1, 1)
base_sound = self.add_sound(base_sound, stereo_pcm)
if not self.audio_file.write(base_sound):
self.cmd_log.error("ERROR 2002 ENCODER closed while write")
self.force_stop = True
self.force_start = False
self.cursor_time += settings.FLOAT_RESOLUTION
else:
time.sleep(settings.FLOAT_RESOLUTION)
else:
if self.audio_file:
# finish recording
self.mumble.users.myself.unrecording()
self.mumble.users.myself.texture(self.load_bitmap(settings.STOP_BITMAP))
self.mumble.set_receive_sound(False)
self.cursor_time = None
self.audio_file.close()
self.audio_file = None
self.cmd_log.info("RECORDING STOP")
self.force_newfile = False
time.sleep(0.5)
def loop(self):
"""Master loop"""
import os.path
import audioop
silent = "\x00" * STEREO_CHUNK_SIZE
self.mumble.users.myself.comment("Auto mode (starting with %i users)." % USER_COUNT + COMMENT_SUFFIX)
self.mumble.users.myself.texture(self.load_bitmap(STOP_BITMAP))
while self.mumble.is_alive() and not self.exit:
if ( ( self.recording and not self.force_stop ) or self.force_start ) and not self.force_newfile:
if not self.audio_file:
# Start recording
self.mumble.set_receive_sound(True) # ask the pymumble library to handle incoming audio
self.mumble.users.myself.recording() # signal the others I'm recording (to be fair)
self.mumble.users.myself.texture(self.load_bitmap(START_BITMAP)) # Change the recorder avatar
self.cursor_time = time.time() - BUFFER # time of the start of the recording
#create the files
audio_file_name = os.path.join(SAVEDIR, "mumble-%s" % time.strftime("%Y%m%d-%H%M%S"))
self.audio_file = AudioFile(audio_file_name)
if CREATE_WEBVTT:
self.chapters = webvtt.WebVtt(audio_file_name + "-chapters.vtt")
self.captions = webvtt.WebVtt(
audio_file_name + "-captions.vtt",
regions=[
"Region: id=left width=50% regionanchor=0%,100% viewportanchor=0%,100%",
"Region: id=right width=50% regionanchor=100%,100% viewportanchor=100%,100%",
]
)
usernames = list()
for user in self.mumble.users.values():
if user["name"] != USER:
usernames.append(user["name"])
title = "<c.system>Recording started with users {users}".format(users=",".join(usernames))
self.captions.add_cue(title, duration=2)
if self.cursor_time < time.time() - BUFFER: # it's time to check audio
base_sound = None
for user in self.mumble.users.values(): # check the audio queue of each users
session = user["session"]
while ( user.sound.is_sound() and
user.sound.first_sound().time < self.cursor_time):
user.sound.get_sound(FLOAT_RESOLUTION) # forget about too old sounds
if user.sound.is_sound():
if self.captions is not None and "caption" not in self.users[session]:
self.users[session]["caption"] = self.captions.add_cue("<v {user}>{user}".format(user=user["name"]))
if ( user.sound.first_sound().time >= self.cursor_time and
user.sound.first_sound().time < self.cursor_time + FLOAT_RESOLUTION ):
# available sound is to be treated now and not later
sound = user.sound.get_sound(FLOAT_RESOLUTION)
if sound.target == 0: # take care of the stereo feature
stereo_pcm = audioop.tostereo(sound.pcm, 2, *self.users[session]["stereo"])
if self.captions is not None:
self.users[session]["caption"].set_region(self.users[session]["region"])
else:
stereo_pcm = audioop.tostereo(sound.pcm, 2, 1, 1)
if base_sound == None:
base_sound = stereo_pcm
else:
#base_sound = audioop.add(base_sound, sound.pcm, 2)
base_sound = self.add_sound(base_sound, stereo_pcm)
else:
if self.captions is not None and "caption" in self.users[session]:
self.users[session]["caption"].end()
del self.users[session]["caption"]
if base_sound:
self.audio_file.write(base_sound)
else:
self.audio_file.write(silent)
self.cursor_time += FLOAT_RESOLUTION
else:
time.sleep(FLOAT_RESOLUTION)
else:
if self.audio_file:
# finish recording
self.mumble.users.myself.unrecording()
self.mumble.users.myself.texture(self.load_bitmap(STOP_BITMAP))
self.mumble.set_receive_sound(False)
self.cursor_time = None
self.audio_file.close()
self.audio_file = None
if self.current_chapter is not None:
self.current_chapter.end()
self.current_chapter = None
self.chapters = None
for user in self.users.values():
if "caption" in user:
user["caption"].end()
del user["caption"]
self.captions = None
self.force_newfile = False
time.sleep(0.5)
def mixstereo(chans):
""" mix a list of two mono sounds into a stereo sound """
chans[0] = audioop.tostereo(chans[0], audio_params[1], 1, 0)
chans[1] = audioop.tostereo(chans[1], audio_params[1], 0, 1)
return mix(chans)
def __init__(self, filename, mode='r', depth=16, rate=44100, channels=2,
bigendian=False, unsigned=False, **kwargs):
""" AllFile(self, filename, mode='r', depth=16, rate=44100, channels=2,
bigendian=False, unsigned=False, **kwargs) -> Loads the
correct codec for the file and acts as a wrapper providing additional
funcionality.
"""
codec = get_codec(filename, blacklist=[os_basename(__file__)])
self._supported_modes = getattr(codec, '_supported_modes', 'r')
source = codec(filename, mode=mode, **kwargs)
super(AllFile, self).__init__(filename, mode, source.depth,
source.rate, source.channels)
self._source = source
self._bigendian = bigendian
self._unsigned = unsigned
self._state = None
annotations = getattr(codec.read, '__annotations__')
self.read.__annotations__.update(annotations)
self._buffer = annotations.get('return', bytes)()
self._buffer_size = self._source.buffer_size
self._length = self._source.length
self._info_dict = self._source._info_dict
self.write = self._source.write
self._closed = False
if self._depth != self._source.depth:
self._convert_depth = lambda data: \
audioop.lin2lin(data, self._source._width, self._width)
else:
self._convert_depth = lambda data: data
if self._unsigned != self._source.unsigned:
self._convert_unsigned = lambda data: \
audioop.bias(data, self._source._width, 128)
else:
self._convert_unsigned = lambda data: data
# Make it stereo
if self._source.channels < self._channels:
self._convert_channels = lambda data: audioop.tostereo(data,
self._width,
1, 1)
# Make it mono
elif self._source.channels > self._channels:
self._convert_channels = lambda data: audioop.tomono(data,
self._width,
1, 1)
else:
self._convert_channels = lambda data: data
# Convert the sample rate of the data to the requested rate.
if self._rate != self._source.rate:
self._convert_rate = lambda data: audioop.ratecv(data, self._width,
self._channels,
self._source.rate,
self._rate,
self._state)
else:
self._convert_rate = lambda data: (data, self._state)
if self._bigendian != self._source.bigendian:
self._convert_endian = swap_endian
else:
self._convert_endian = lambda data: data
def test_tostereo(self):
data2 = bytearray()
for d in data[0]:
data2.append(d)
data2.append(d)
self.assertEqual(audioop.tostereo(data[0], 1, 1, 1), data2)
def stereo(snd):
""" Just a wrapper for audioop.tostereo from the standard library.
Pass it a mono sound and it will convert it to stereo.
"""
return audioop.tostereo(snd, audio_params[1], 0.5, 0.5)
