comparison layer/SpectrogramLayer.cpp @ 1403:10e768adaee5

Retain consistent min freq (rather than min bin no) when changing fft parameters in spectrum; scale ffts by window size rather than fft size in case of oversampling, to avoid fading out because of scale factor including zero padding

         params.scaleFactor = 1.0;
         params.colourRotation = m_colourRotation;
 
         if (m_colourScale != ColourScaleType::Phase &&
             m_normalization != ColumnNormalization::Hybrid) {
-            params.scaleFactor *= 2.f / float(getFFTSize());
+            params.scaleFactor *= 2.f / float(getWindowSize());
         }
 
         Preferences::SpectrogramSmoothing smoothing = 
             Preferences::getInstance()->getSpectrogramSmoothing();
         params.interpolate =