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 mix_channels( settings, p=None ):
"""
Mix channels of the settings.
@param settings: a list of dictionaries with extracted information from a settings file.
@param p is a progress dialog
"""
#variables for displaying
total = len(settings)
mixerleft = ChannelsMixer()
mixerright = ChannelsMixer()
for i,channel in enumerate(settings):
if p: p.update(float(i)/total, "Formatting channel " + str(i+1) + " of " + str(total))
coeffLeft = 50.
coeffRight = 50.
if channel['panoramic'] < 0:
coeffLeft = float( 100 - channel['panoramic'] )/2
coeffRight = float( 100 - coeffLeft ) - channel['factor'] * channel['panoramic']
elif channel['panoramic'] > 0:
coeffRight = float( 100 + channel['panoramic'] )/2
coeffLeft = float( 100 - coeffRight ) + channel['factor'] * channel['panoramic']
mixerleft.append_channel( channel['channel'], coeffLeft/100. * (channel['volume'])/100.)
mixerright.append_channel(channel['channel'], coeffRight/100. * (channel['volume'])/100.)
return mixerleft,mixerright
parser.add_argument("-w", metavar="file", nargs='+', required=True, help='Audio Input file name')
parser.add_argument("-o", metavar="file", required=True, help='Audio Output file name')
# ----------------------------------------------------------------------------
if len(sys.argv) <= 1:
sys.argv.append('-h')
args = parser.parse_args()
# ----------------------------------------------------------------------------
mixer = ChannelsMixer()
for inputFile in args.w:
audio = signals.open(inputFile)
for i in xrange(audio.get_nchannels()):
idx = audio.extract_channel(i)
audio.rewind()
mixer.append_channel(audio.get_channel(idx))
newchannel = mixer.mix()
# Save the converted channel
audio_out = Audio()
audio_out.append_channel( newchannel )
signals.save( args.o, audio_out )
import signals
from signals.channelsmixer import ChannelsMixer
from signals.audio import Audio
sys.path.remove(SRC)
parser = ArgumentParser(usage="%s -w input files" % os.path.basename(PROGRAM), description="A script to get the maximum value of a mix between mono 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()
# ----------------------------------------------------------------------------
mixer = ChannelsMixer()
for inputFile in args.w:
audio = signals.open(inputFile)
idx = audio.extract_channel(0)
mixer.append_channel(audio.get_channel(idx))
print mixer.get_max()
# ----------------------------------------------------------------------------