def test_Mix(self):
self._sample_1.extract_channel(0)
self._sample_2.extract_channel(0)
formatter1 = ChannelFormatter(self._sample_1.get_channel(0))
formatter1.set_framerate(16000)
formatter1.set_sampwidth(2)
formatter1.convert()
formatter2 = ChannelFormatter(self._sample_2.get_channel(0))
formatter2.set_framerate(16000)
formatter2.set_sampwidth(2)
formatter2.convert()
equalizer = ChannelsEqualizer()
equalizer.append_channel(formatter1.channel)
equalizer.append_channel(formatter2.channel)
equalizer.equalize()
mixer = ChannelsMixer()
mixer.append_channel(equalizer.get_channel(0))
mixer.append_channel(equalizer.get_channel(1))
newchannel = mixer.mix()
self.assertEqual(newchannel.get_nframes(), equalizer.get_channel(0).get_nframes())
self.assertEqual(newchannel.get_nframes(), equalizer.get_channel(1).get_nframes())
def equalize_channels( settings, p=None ):
"""
Equalize channels of the settings.
@param settings: a list of dictionaries with extracted information from a settings file.
@param p is a progress dialog
"""
equalizer = ChannelsEqualizer()
if p: p.update(0.25, "Load channels to equalize. ")
for channel in settings:
equalizer.append_channel( channel['channel'] )
if p: p.update(0.50, "Equalize each channel... ")
equalizer.equalize()
if p: p.update(0.90, "Save equalized channels. ")
for i,channel in enumerate(settings):
channel['channel'] = equalizer.get_channel(i)
parser = ArgumentParser(usage="%s -w input files [options]" % os.path.basename(PROGRAM), description="A script to equalize the number of frames of audio files")
parser.add_argument("-w", metavar="file", nargs='+', required=True, help='Audio Input file names')
# ----------------------------------------------------------------------------
if len(sys.argv) <= 1:
sys.argv.append('-h')
args = parser.parse_args()
# ----------------------------------------------------------------------------
equalizer = ChannelsEqualizer()
file = signals.open(args.w[0])
sampwidth = file.get_sampwidth()
framerate = file.get_framerate()
for inputFile in args.w:
audio = signals.open(inputFile)
if audio.get_sampwidth() != sampwidth:
print "Input files must have the same sample width !"
sys.exit(1)
if audio.get_framerate() != framerate:
print "Input files must have the same framerate !"
sys.exit(1)
idx = audio.extract_channel(1)
equalizer.append_channel(audio.get_channel(idx))
