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Settle on these values for the moment

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This commit is contained in:
Chris Cannam
2022-06-06 14:00:09 +01:00
parent f8abd07438
commit 0ceca73636
1 changed files with 7 additions and 5 deletions
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12
src/finer/R3StretcherImpl.cpp
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@@ -662,7 +662,7 @@ R3StretcherImpl::analyseFormant()
m_scaleData.at(classify)->fft.inverseCepstral
(f.envelope.data(), f.cepstra.data());
int cutoff = int(floor(m_parameters.sampleRate / 700.0));
int cutoff = int(floor(m_parameters.sampleRate / 650.0));
if (cutoff < 1) cutoff = 1;
f.cepstra[0] /= 2.0;
@@ -757,19 +757,21 @@ R3StretcherImpl::synthesiseChannel(int c, int outhop)
int highBin = int(floor(fftSize * band.f1 / m_parameters.sampleRate));
if (highBin % 2 == 1) --highBin;
int formantHigh = int(floor(fftSize * 7000.0 / m_parameters.sampleRate));
int formantHigh = int(floor(fftSize * 10000.0 / m_parameters.sampleRate));
for (int i = 0; i < lowBin; ++i) {
scale->mag[i] = 0.0;
}
if (m_formant->enabled) {
double targetFactor = double(m_formant->fftSize) / double(fftSize);
double sourceFactor = targetFactor * m_pitchScale;
double scaleFactor = 1.0 / targetFactor;
for (int i = lowBin; i < highBin /* && i < formantHigh */; ++i) {
for (int i = lowBin; i < highBin && i < formantHigh; ++i) {
double source = m_formant->envelopeAt(i * sourceFactor);
double target = m_formant->envelopeAt(i * targetFactor);
if (target > 0.0) {
scale->mag[i] *= source / target;
double ratio = source / target;
// if (ratio < 0.2) ratio = 0.2;
// if (ratio > 5.0) ratio = 5.0;
scale->mag[i] *= ratio;
}
}
}