public void Synthesize(double[] f0, int f0Length, double[][] spectrogram, double[][] aperiodicity, int fftSize, double framePeriod, int fs, double[] y)
{
var minimumPhase = MinimumPhaseAnalysis.Create(fftSize);
var inverseRealFFT = InverseRealFFT.Create(fftSize);
var forwardRealFFT = ForwardRealFFT.Create(fftSize);
var pulseLocations = new double[y.Length];
var pulseLocationsIndex = new int[y.Length];
var pulseLocationsTimeShift = new double[y.Length];
var interpolatedVUV = new double[y.Length];
var numberOfPulses = GetTimeBase(f0, f0Length, fs, framePeriod / 1000.0, y.Length, fs / fftSize + 1.0, pulseLocations, pulseLocationsIndex, pulseLocationsTimeShift, interpolatedVUV);
var dcRemover = GetDCRemover(fftSize);
framePeriod /= 1000.0;
var impulseResponse = new double[fftSize];
for (var i = 0; i < numberOfPulses; i++)
{
var noiseSize = pulseLocationsIndex[Math.Min(numberOfPulses - 1, i + 1)] - pulseLocationsIndex[i];
GetOneFrameSegment(interpolatedVUV[pulseLocationsIndex[i]], noiseSize, spectrogram, fftSize, aperiodicity, f0Length, framePeriod, pulseLocations[i], pulseLocationsTimeShift[i], fs, forwardRealFFT, inverseRealFFT, minimumPhase, dcRemover, impulseResponse);
for (var j = 0; j < fftSize; j++)
{
var index = j + pulseLocationsIndex[i] - fftSize / 2 + 1;
if (index < 0 || index > y.Length - 1)
{
continue;
}
y[index] += impulseResponse[j];
}
}
}
public SynthesisRealTime(int sampleRate, double framePeriod, int fftSize, int bufferSize, int ringBufferCapacity)
{
SampleRate = sampleRate;
FramePeriod = framePeriod * 0.001;
AudioBufferSize = bufferSize;
AudioBuffer = new double[bufferSize * 2 + fftSize];
Buffer = new RingBuffer(ringBufferCapacity);
FFTSize = fftSize;
ImpulseResponse = new double[fftSize];
DCRemover = GetDCRemover(fftSize / 2);
RefreshSynthesizer();
MinimumPhase = MinimumPhaseAnalysis.Create(fftSize);
InverseRealFFT = InverseRealFFT.Create(fftSize);
ForwardRealFFT = ForwardRealFFT.Create(fftSize);
}