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diff layer/SpectrogramLayer.cpp @ 1403:10e768adaee5

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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
author Chris Cannam
date Thu, 15 Nov 2018 15:08:08 +0000
parents ba1f0234efa7
children 4c359c2b220c
line wrap: on
line diff
--- a/layer/SpectrogramLayer.cpp	Thu Nov 15 14:18:26 2018 +0000
+++ b/layer/SpectrogramLayer.cpp	Thu Nov 15 15:08:08 2018 +0000
@@ -1534,7 +1534,7 @@
 
         if (m_colourScale != ColourScaleType::Phase &&
             m_normalization != ColumnNormalization::Hybrid) {
-            params.scaleFactor *= 2.f / float(getFFTSize());
+            params.scaleFactor *= 2.f / float(getWindowSize());
         }
 
         Preferences::SpectrogramSmoothing smoothing =