void GetTimeBase(double[] f0, int f0Length, int startSample, int numberOfSamples)
{
var coarseTimeAxis = new double[f0Length + Handoff];
var coarseF0 = new double[f0Length + Handoff];
var coarseVUV = new double[f0Length + Handoff];
GetTemporalParametersForTimeBase(f0, f0Length, coarseTimeAxis, coarseF0, coarseVUV);
var interpolatedF0 = new double[numberOfSamples];
var timeAxis = Enumerable.Range(0, numberOfSamples).Select((i) => (i + startSample) / (double)SampleRate).ToArray();
var pointer = Buffer.HeadIndex;
MatlabFunctions.Interp1(coarseTimeAxis, coarseF0, timeAxis, interpolatedF0);
MatlabFunctions.Interp1(coarseTimeAxis, coarseVUV, timeAxis, Buffer.InterpolatedVUV[pointer]);
var interpolatedVUV = Buffer.InterpolatedVUV[pointer];
for (var i = 0; i < numberOfSamples; i++)
{
interpolatedVUV[i] = interpolatedVUV[i] > 0.5 ? 1.0 : 0.0;
interpolatedF0[i] = interpolatedVUV[i] == 0.0 ? DefaultF0 : interpolatedF0[i];
}
GetPulseLocationsForTimeBase(interpolatedF0, timeAxis, numberOfSamples, coarseTimeAxis[0]);
HandoffF0 = interpolatedF0[numberOfSamples - 1];
}
void GetAperiodicity(double[] coarseFrequencyAxis, double[] coarseAperiodicity, int numberOfAperiodicities, double[] frequencyAxis, int fftSize, double[] aperiodicity)
{
MatlabFunctions.Interp1(coarseFrequencyAxis.SubSequence(0, numberOfAperiodicities + 2), coarseAperiodicity, frequencyAxis.SubSequence(0, fftSize / 2 + 1), aperiodicity);
for (int i = 0, limit = fftSize / 2; i <= limit; i++)
{
aperiodicity[i] = Math.Pow(10.0, aperiodicity[i] / 20.0);
}
}
int GetTimeBase(double[] f0, int f0Length, int fs, double framePeriod, int yLength, double lowestF0, double[] pulseLocations, int[] pulseLocationsIndex, double[] pulseLocationsTimeShift, double[] interpolatedVUV)
{
var timeAxis = new double[yLength];
var coarseTimeAxis = new double[f0Length + 1];
var coarseF0 = new double[f0Length + 1];
var coarseVUV = new double[f0Length + 1];
GetTemporalParametersForTimeBase(f0, f0Length, fs, yLength, framePeriod, lowestF0, timeAxis, coarseTimeAxis, coarseF0, coarseVUV);
var interpolatedF0 = new double[yLength];
MatlabFunctions.Interp1(coarseTimeAxis, coarseF0, timeAxis, interpolatedF0);
MatlabFunctions.Interp1(coarseTimeAxis, coarseVUV, timeAxis, interpolatedVUV);
for (var i = 0; i < yLength; i++)
{
interpolatedVUV[i] = interpolatedVUV[i] > 0.5 ? 1.0 : 0.0;
interpolatedF0[i] = interpolatedVUV[i] == 0.0 ? DefaultF0 : interpolatedF0[i];
}
return(GetPulseLocationsForTimeBase(interpolatedF0, timeAxis, yLength, fs, pulseLocations, pulseLocationsIndex, pulseLocationsTimeShift));
}
