def convolution(sound, start, end):
x = sound.frames
h = clipboard.clip
numchan = max(x.ndim, h.ndim)
if numchan == 1:
y = ola_fftconvolve(x[start:end], h)
else:
y = []
if h.ndim == 1:
#! H will be computed two times !
h = edit.mix_channels_auto(h, 2)
if x.ndim == 1:
x = edit.mix_channels_auto(x, 2)
h = h.transpose()
x = x.transpose()
for nchan in range(2):
tmp = ola_fftconvolve(x[nchan][start:end], h[nchan])
y.append(tmp)
y = numpy.array(y)
y = y.transpose()
# normalize
if y.any():
M = abs(y).max()
factor = 1. / M
y = y * factor
l = len(sound.frames)
sound.paste(0, l, y)
def monoize(sound, start, end):
x = sound.frames
y = edit.mix_channels_auto(sound.frames, 1)
do = (replace_frames, [sound, y])
undo = (replace_frames, [sound, x])
sound.history.add(do, undo)
sound.changed()
def monoize(sound, start, end):
x = sound.frames
y = edit.mix_channels_auto(sound.frames, 1)
do = (replace_frames, [sound, y])
undo = (replace_frames, [sound, x])
sound.history.add(do, undo)
sound.changed()
def _do_paste(self, start, end, clip):
if self.is_empty():
self.frames = clip
else:
# FIXME: should resample
clip = edit.mix_channels_auto(clip, self.numchan())
x = self.frames
y = numpy.concatenate((x[:start], clip, x[end:]))
self.frames = y
def _do_paste(self, start, end, clip):
if self.is_empty():
self.frames = clip
else:
# FIXME: should resample
clip = edit.mix_channels_auto(clip, self.numchan())
x = self.frames
y = numpy.concatenate((x[:start], clip, x[end:]))
self.frames = y
def _do_mix(self, start, end, clip):
if self.is_empty():
self.frames = clip
else:
# FIXME: should resample
clip = edit.mix_channels_auto(clip, self.numchan())
if start != end:
length = min(end - start, len(clip))
self.frames[start:start + length] += clip[:length]
else:
a = self.frames
b = clip
sound_length = max(len(a), start + len(b))
if self.numchan() > 1:
c = numpy.zeros((sound_length, self.numchan()))
else:
c = numpy.zeros(sound_length)
c[:len(a)] = a
c[start:start + len(b)] += b
self.frames = c
def _do_mix(self, start, end, clip):
if self.is_empty():
self.frames = clip
else:
# FIXME: should resample
clip = edit.mix_channels_auto(clip, self.numchan())
if start != end:
length = min(end - start, len(clip))
self.frames[start:start + length] += clip[:length]
else:
a = self.frames
b = clip
sound_length = max(len(a), start + len(b))
if self.numchan() > 1:
c = numpy.zeros((sound_length, self.numchan()))
else:
c = numpy.zeros(sound_length)
c[:len(a)] = a
c[start:start + len(b)] += b
self.frames = c
