def SaveChannel(self, parent_filename, period=False):
""" Save the channel in an audio file.
:param parent_filename: (str)
:param period: (bool) Save a portion of the channel only
"""
s = None
e = None
if period is True:
dlg = PeriodChooser(self, self._prefs, 0., float(self._channel.get_nframes())/float(self._channel.get_framerate()))
answer = dlg.ShowModal()
if answer == wx.ID_OK:
(s, e) = dlg.GetValues()
try:
s = float(s)
e = float(e)
if e < s:
raise Exception
except Exception:
ShowInformation(self, self._prefs, "Error in the definition of the portion of time.", style=wx.ICON_ERROR)
return
dlg.Destroy()
if answer != wx.ID_OK:
return
new_filename = SaveAsAudioFile()
# If it is the OK response, process the data.
if new_filename is not None:
if new_filename == parent_filename:
ShowInformation(self, self._prefs, "Assigning the current file name is forbidden. Choose a new file name.", style=wx.ICON_ERROR)
return
# Create a formatted channel
try:
channel = self.ApplyChanges(s, e)
except Exception as e:
ShowInformation(self, self._prefs, "Error while formatting the channel: %s" % str(e), style=wx.ICON_ERROR)
return
message = "File {:s} saved successfully.".format(new_filename)
if channel is None:
channel = self._channel
else:
message += "\nYou can now open it with AudioRoamer to see your changes!"
# Save the channel
try:
audio = sppasAudioPCM()
audio.append_channel(channel)
sppas.src.audiodata.aio.save(new_filename, audio)
except Exception as e:
message = "File not saved. Error: {:s}".format(str(e))
else:
# Update members
self._filename = new_filename
ShowInformation(self, self._prefs, message, style=wx.ICON_INFORMATION)
def write_audio_tracks(self, ipustrs, ipusaudio, output, extension):
""" Write the audio in track files.
:param ipustrs: (IPUsTrs)
:param ipusaudio: (IPUsAudio)
:param output: (str) Directory name
:param extension: (str) Extension of the file name for audio tracks
"""
if not os.path.exists(output):
os.mkdir(output)
if extension is None:
raise IOError('An extension is required to write audio tracks.')
if ipusaudio.get_channel() is None:
return
try:
split_tracks = ipusaudio.get_track_data(self.tracks)
except Exception as e:
raise Exception('Split into tracks failed: %s' % e)
names = ipustrs.get_names()
# Write audio tracks
for i, split_track in enumerate(split_tracks):
track_basename = ""
if len(names) > 0 and len(names[i]) > 0:
# Specific names are given
track_basename = os.path.join(output, names[i])
else:
track_basename = os.path.join(output, "track_%.06d" % (i + 1))
track_wavname = track_basename + "." + extension
audio_out = sppasAudioPCM()
audio_out.append_channel(ipusaudio.get_channel())
try:
sppas.src.audiodata.aio.save_fragment(track_wavname, audio_out,
split_track)
except Exception as e:
raise Exception("Can't write track: %s. Error is %s" %
(track_wavname, e))
def write_audio_tracks(self, ipustrs, ipusaudio, output, extension):
""" Write the audio in track files.
:param ipustrs: (IPUsTrs)
:param ipusaudio: (IPUsAudio)
:param output: (str) Directory name
:param extension: (str) Extension of the file name for audio tracks
"""
if not os.path.exists(output):
os.mkdir(output)
if extension is None:
raise IOError('An extension is required to write audio tracks.')
if ipusaudio.get_channel() is None:
return
try:
split_tracks = ipusaudio.get_track_data(self.tracks)
except Exception as e:
raise Exception('Split into tracks failed: %s' % e)
names = ipustrs.get_names()
# Write audio tracks
for i, split_track in enumerate(split_tracks):
track_basename = ""
if len(names) > 0 and len(names[i])>0:
# Specific names are given
track_basename = os.path.join(output, names[i])
else:
track_basename = os.path.join(output, "track_%.06d" % (i+1))
track_wavname = track_basename+"."+extension
audio_out = sppasAudioPCM()
audio_out.append_channel(ipusaudio.get_channel())
try:
sppas.src.audiodata.aio.save_fragment(track_wavname, audio_out, split_track)
except Exception as e:
raise Exception("Can't write track: %s. Error is %s" % (track_wavname, e))
def SaveChannel(self, parent_filename, period=False):
"""Save the channel in an audio file.
:param parent_filename: (str)
:param period: (bool) Save a portion of the channel only
"""
s = None
e = None
if period is True:
dlg = PeriodChooser(
self, self._prefs, 0.,
float(self._channel.get_nframes()) /
float(self._channel.get_framerate()))
answer = dlg.ShowModal()
if answer == wx.ID_OK:
(s, e) = dlg.GetValues()
try:
s = float(s)
e = float(e)
if e < s:
raise Exception
except Exception:
ShowInformation(
self,
self._prefs,
"Error in the definition of the portion of time.",
style=wx.ICON_ERROR)
return
dlg.Destroy()
if answer != wx.ID_OK:
return
new_filename = SaveAsAudioFile()
# If it is the OK response, process the data.
if new_filename is not None:
if new_filename == parent_filename:
ShowInformation(
self,
self._prefs,
"Assigning the current file name is forbidden. Choose a new file name.",
style=wx.ICON_ERROR)
return
# Create a formatted channel
try:
channel = self.ApplyChanges(s, e)
except Exception as e:
ShowInformation(self,
self._prefs,
"Error while formatting the channel: %s" %
str(e),
style=wx.ICON_ERROR)
return
message = "File {:s} saved successfully.".format(new_filename)
if channel is None:
channel = self._channel
else:
message += "\nYou can now open it with AudioRoamer to see your changes!"
# Save the channel
try:
audio = sppasAudioPCM()
audio.append_channel(channel)
sppas.src.audiodata.aio.save(new_filename, audio)
except Exception as e:
message = "File not saved. Error: {:s}".format(str(e))
else:
# Update members
self._filename = new_filename
ShowInformation(self,
self._prefs,
message,
style=wx.ICON_INFORMATION)
freq = 2000 # Hz
r = 0.98
a1 = -2.0 * r * math.cos(freq / (SAMPLE_RATE / 2.0) * math.pi)
a2 = r * r
filter = [a1, a2]
print(filter)
n = audioin.get_nframes()
original = struct.unpack('%dh' % n, audioin.read_frames(n))
original = [s / 2.0**15 for s in original]
result = [0 for i in range(0, len(filter))]
biggest = 1
for sample in original:
for cpos in range(0, len(filter)):
sample -= result[len(result) - 1 - cpos] * filter[cpos]
result.append(sample)
biggest = max(abs(sample), biggest)
result = [sample / biggest for sample in result]
result = [int(sample * (2.0**15 - 1)) for sample in result]
# ----------------------------------------------------------------------------
audioout = sppasAudioPCM()
channel = sppasChannel(framerate=SAMPLE_RATE,
sampwidth=audioin.get_sampwidth(),
frames=struct.pack('%dh' % len(result), *result))
audioout.append_channel(channel)
sppas.src.audiodata.aio.save(args.o, audioout)
help='The position (in number of frames) when begins the mix, don\'t use with -bs')
parser.add_argument("-ef",
default=0,
metavar="value",
type=float,
help='The position (in number of frames) when ends the mix, don\'t use with -es')
if len(sys.argv) <= 1:
sys.argv.append('-h')
args = parser.parse_args()
# ----------------------------------------------------------------------------
audio_out = sppasAudioPCM()
audio = sppas.src.audiodata.aio.open(args.w)
if args.bf and args.bs:
print("bf option and bs option can't be used at the same time!")
sys.exit(1)
if args.ef and args.es:
print("ef option and es option can't be used at the same time!")
sys.exit(1)
if args.bf:
begin = args.bf
elif args.bs:
begin = args.bs*audio.get_framerate()
else:
if verbose > 0:
p.update(1, "")
del p
if verbose > 1:
print("\nEnd mixing channels at %s" %
time.strftime('%d/%m/%y %H:%M:%S', time.localtime()))
# ========================SAVE THE RESULT============================#
p = None
if verbose > 0:
p = ProcessProgressTerminal()
p.set_new()
p.set_header("Saving the output file")
p.set_fraction(0)
p.update(0, "")
audio_out = sppasAudioPCM()
audio_out.append_channel(newchannelleft)
audio_out.append_channel(newchannelright)
sppas.src.audiodata.aio.save(args.o, audio_out)
if verbose > 0:
p.update(1, "")
# ----------------------------------------------------------------------------
if verbose > 1:
print("\nEnd process at %s",
time.strftime('%d/%m/%y %H:%M:%S', time.localtime()))
freq = 2000 # Hz
r = 0.98
a1 = -2.0 * r * math.cos(freq / (SAMPLE_RATE / 2.0) * math.pi)
a2 = r * r
filter = [a1, a2]
print(filter)
n = audioin.get_nframes()
original = struct.unpack('%dh' % n, audioin.read_frames(n))
original = [s / 2.0**15 for s in original]
result = [0 for i in range(0, len(filter))]
biggest = 1
for sample in original:
for cpos in range(0, len(filter)):
sample -= result[len(result) - 1 - cpos] * filter[cpos]
result.append(sample)
biggest = max(abs(sample), biggest)
result = [sample / biggest for sample in result]
result = [int(sample * (2.0**15 - 1)) for sample in result]
# ----------------------------------------------------------------------------
audioout = sppasAudioPCM()
channel = sppasChannel(framerate=SAMPLE_RATE,
sampwidth=audioin.get_sampwidth(),
frames=struct.pack('%dh' % len(result), *result))
audioout.append_channel(channel)
sppas.src.audiodata.aio.save(args.o, audioout)
