def synthesize(input_filename, output_filename):
'''Synthesize the control data from input_filename into output_filename.'''
frames = parse_input_file(input_filename)
t = gnuspeech.TRMTubeModelCreate(frames.inputParameters)
logging.info('Calculating floating point samples...')
gnuspeech.synthesize(t, frames)
gnuspeech.writeOutputToFile(t.sampleRateConverter, frames, output_filename)
logging.info('Wrote scaled samples to file: %s', output_filename)
gnuspeech.TRMTubeModelFree(t)
def synthesize(self, *controls):
'''Synthesize a sound from the given control variables.
Each element of controls is expected to be a list or numpy array
containing controls for each frame of the sound synthesis. If it is a
numpy array, frames are read from the 0 axis (the "rows") of the array.
The variables for each frame, in order, are:
glotPitch - glottal pitch, 0 == middle C
glotVol - glottal volume, dB
aspVol - aspirate volume, dB
fricVol - fricative volume, dB
fricPos - fricative position, cm
fricCF - fricative filter center frequency, Hz
fricBW - fricative filter bandwidth, Hz
radius[0] - radius of vocal tract, region 0, cm
...
radius[7] - radius of vocal tract, region 7, cm
velum - radius of velar opening, cm
'''
# convert control frames into TRM linked list structure
data = gnuspeech.TRMData()
data.inputParameters = self.parameters._params
radii = gnuspeech.new_double_array(gnuspeech.TOTAL_REGIONS)
for frame in itertools.chain.from_iterable(controls):
glot_pitch, glot_vol, asp_vol, fric_vol, fric_pos, fric_cf, fric_bw = frame[:7]
for i, v in enumerate(frame[7:15]):
gnuspeech.double_array_setitem(radii, i, v)
velum = frame[15]
gnuspeech.addInput(data, glot_pitch, glot_vol, asp_vol,
fric_vol, fric_pos, fric_cf, fric_bw,
radii, velum)
gnuspeech.delete_double_array(radii)
# run the synthesizer
gnuspeech.synthesize(self._model, data)
# now return the synthesized sound data as an array of doubles
converter = self._model.sampleRateConverter
converter.tempFilePtr.seek(0)
logging.debug('number of samples: %d', converter.numberSamples)
logging.debug('maximum sample value: %.4f', converter.maximumSampleValue)
arr = array.array('d')
arr.fromstring(converter.tempFilePtr.read())
return arr
