def fradosify(path, outfp, delta, pitchmin=70, pitchmax=400, threshold=0.7):
print >> sys.stderr, 'reading: %r' % path
ratio = pow(2, delta / 12.0)
src = WaveReader(path)
if src.nchannels != 1: raise ValueError('invalid number of channels')
if src.sampwidth != 2: raise ValueError('invalid sampling width')
contour = PitchContour(src.framerate,
pitchmin=pitchmin,
pitchmax=pitchmax,
threshold=threshold)
dst = WaveWriter(outfp, framerate=src.framerate)
nframes = src.nframes
buf = src.readraw(nframes)
contour.reset()
contour.load(buf, nframes)
def f(t):
x = contour.getavg(t)
if x != 0:
x = int(x * ratio)
return x
dst.writeraw(psola(buf, src.framerate, contour.getsrc, f, contour.wmin))
src.close()
dst.close()
return
def fradosify(path, outfp, delta,
pitchmin=70, pitchmax=400, threshold=0.7):
print >>sys.stderr, 'reading: %r' % path
ratio = pow(2, delta/12.0)
src = WaveReader(path)
if src.nchannels != 1: raise ValueError('invalid number of channels')
if src.sampwidth != 2: raise ValueError('invalid sampling width')
contour = PitchContour(
src.framerate,
pitchmin=pitchmin, pitchmax=pitchmax,
threshold=threshold)
dst = WaveWriter(outfp, framerate=src.framerate)
nframes = src.nframes
buf = src.readraw(nframes)
contour.reset()
contour.load(buf, nframes)
def f(t):
x = contour.getavg(t)
if x != 0:
x = int(x*ratio)
return x
dst.writeraw(psola(buf, src.framerate, contour.getsrc, f, contour.wmin))
src.close()
dst.close()
return
def write(self, cur, path, force=False):
if not force and os.path.exists(path):
raise WavEdError('File exists: %r' % path)
nframes = cur.get_length()
fp = open(path, 'wb')
writer = WaveWriter(fp,
nchannels=self._wav.nchannels,
sampwidth=self._wav.sampwidth,
framerate=self._wav.framerate)
self._wav.seek(cur.start)
(_, data) = self._wav.readraw(nframes)
writer.writeraw(data)
writer.close()
fp.close()
print('Written: %r, rate=%d, frames=%d, duration=%.3f' %
(path, writer.framerate, nframes,
nframes / float(writer.framerate)))
return
def write(self, cur, path, force=False):
if not force and os.path.exists(path):
raise WavEdError('File exists: %r' % path)
nframes = cur.get_length()
fp = open(path, 'wb')
writer = WaveWriter(fp,
nchannels=self._wav.nchannels,
sampwidth=self._wav.sampwidth,
framerate=self._wav.framerate)
self._wav.seek(cur.start)
(_,data) = self._wav.readraw(nframes)
writer.writeraw(data)
writer.close()
fp.close()
print ('Written: %r, rate=%d, frames=%d, duration=%.3f' %
(path, writer.framerate, nframes,
nframes/float(writer.framerate)))
return