def analsynthSineModelStreaming(params, signal):
out = numpy.array(0)
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
fft = es.FFT(size=params['frameSize'])
smanal = es.SineModelAnal(sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'])
smsyn = es.SineModelSynth(sampleRate=params['sampleRate'],
fftSize=params['frameSize'],
hopSize=params['hopSize'])
ifft = es.IFFT(size=params['frameSize'])
overl = es.OverlapAdd(frameSize=params['frameSize'],
hopSize=params['hopSize'],
gain=1. / params['frameSize'])
# add half window of zeros to input signal to reach same ooutput length
signal = numpy.append(signal, zeros(params['frameSize'] / 2))
insignal = VectorInput(signal)
# analysis
insignal.data >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# synthesis
smanal.magnitudes >> smsyn.magnitudes
smanal.frequencies >> smsyn.frequencies
smanal.phases >> smsyn.phases
smsyn.fft >> ifft.fft
ifft.frame >> overl.frame
overl.signal >> (pool, 'audio')
essentia.run(insignal)
# remove short tracks
freqs = pool['frequencies']
minFrames = int(params['minSineDur'] * params['sampleRate'] /
params['hopSize'])
freqsClean = cleaningSineTracks(freqs, minFrames)
pool['frequencies'].data = freqsClean
# remove first half window frames
outaudio = pool['audio']
outaudio = outaudio[2 * params['hopSize']:]
return outaudio, pool
out = np.array(0)
loader = es.MonoLoader(filename=inputFilename, sampleRate=params['sampleRate'])
pool = essentia.Pool()
fcut = es.FrameCutter(frameSize=params['frameSize'],
hopSize=params['hopSize'],
startFromZero=False)
w = es.Windowing(type="blackmanharris92")
fft = es.FFT(size=params['frameSize'])
smanal = es.SineModelAnal(sampleRate=params['sampleRate'],
maxnSines=params['maxnSines'],
magnitudeThreshold=params['magnitudeThreshold'],
freqDevOffset=params['freqDevOffset'],
freqDevSlope=params['freqDevSlope'])
smsyn = es.SineModelSynth(sampleRate=params['sampleRate'],
fftSize=params['frameSize'],
hopSize=params['hopSize'])
ifft = es.IFFT(size=params['frameSize'])
overl = es.OverlapAdd(frameSize=params['frameSize'], hopSize=params['hopSize'])
awrite = es.MonoWriter(filename=outputFilename,
sampleRate=params['sampleRate'])
# analysis
loader.audio >> fcut.signal
fcut.frame >> w.frame
w.frame >> fft.frame
fft.fft >> smanal.fft
smanal.magnitudes >> (pool, 'magnitudes')
smanal.frequencies >> (pool, 'frequencies')
smanal.phases >> (pool, 'phases')
# synthesis