def pitchTableForBuffer(self, pitchBuffer):
filterer = Filterer(pitchBuffer, lowPassCutoffInHZ=settings.minimumPitchInHZ, highPassCutoffInHZ=settings.maximumPitchInHZ, gain=1)
buf = filterer.process()
segmenter = Segmenter(buf, windowWidth=2)
pitchTable = sp.zeros(segmenter.numberOfSegments())
for (buf, index) in segmenter.eachSegment():
pitchTable[index] = PitchEstimator.pitchForPeriod(buf)
return pitchTable
def __init__(self, buf):
self.mainBuffer = buf
self.pitchTable = None
self.pitchBuffer = Buffer.copy(buf)
if settings.preEmphasis:
PreEmphasizer.processBuffer(buf)
self.pitchTable = {}
wrappedPitch = False
if settings.overridePitch:
wrappedPitch = settings.pitchValue
else:
self.pitchTable = self.pitchTableForBuffer(self.pitchBuffer)
coefficients = sp.zeros(11)
segmenter = Segmenter(buf=self.mainBuffer, windowWidth=settings.windowWidth)
frames = []
for (cur_buf, i) in segmenter.eachSegment():
HammingWindow.processBuffer(cur_buf)
coefficients = cur_buf.getCoefficientsFor()
reflector = Reflector.translateCoefficients(coefficients, cur_buf.size)
if wrappedPitch:
pitch = int(wrappedPitch)
else:
pitch = self.pitchTable[i]
frameData = FrameData(reflector, pitch, repeat=False)
frames.append(frameData)
if settings.includeExplicitStopFrame:
frames.append(FrameData.stopFrame())
self.frames = frames
