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Niemitalo window

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This commit is contained in:
Chris Cannam
2022-05-25 14:43:05 +01:00
parent 630a790ef8
commit a04b6adb10
2 changed files with 89 additions and 4 deletions
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26
src/finer/R3StretcherImpl.h
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@@ -168,15 +168,35 @@ protected:
};
struct ScaleData {
int fftSize;
FFT fft;
Window<double> analysisWindow;
Window<double> synthesisWindow;
GuidedPhaseAdvance guided;
ScaleData(GuidedPhaseAdvance::Parameters guidedParameters) :
fft(guidedParameters.fftSize),
analysisWindow(HannWindow, guidedParameters.fftSize),
synthesisWindow(HannWindow, guidedParameters.fftSize/2),
fftSize(guidedParameters.fftSize),
fft(fftSize),
analysisWindow(analysisWindowShape(fftSize),
analysisWindowLength(fftSize)),
synthesisWindow(synthesisWindowShape(fftSize),
synthesisWindowLength(fftSize)),
guided(guidedParameters) { }
WindowType analysisWindowShape(int fftSize) {
if (fftSize == 4096) return HannWindow;
else return NiemitaloForwardWindow;
}
int analysisWindowLength(int fftSize) {
return fftSize;
}
WindowType synthesisWindowShape(int fftSize) {
if (fftSize == 4096) return HannWindow;
else return NiemitaloReverseWindow;
}
int synthesisWindowLength(int fftSize) {
if (fftSize == 4096) return fftSize/2;
else return fftSize;
}
};
Parameters m_parameters;