Merge "Splitting analysis window in frequency implementation. Other fixes."
diff --git a/media/libeffects/dynamicsproc/dsp/DPFrequency.cpp b/media/libeffects/dynamicsproc/dsp/DPFrequency.cpp
index 1f53978..ae5c020 100644
--- a/media/libeffects/dynamicsproc/dsp/DPFrequency.cpp
+++ b/media/libeffects/dynamicsproc/dsp/DPFrequency.cpp
@@ -62,11 +62,6 @@
cBInput.resize(mBlockSize * CIRCULAR_BUFFER_UPSAMPLE);
cBOutput.resize(mBlockSize * CIRCULAR_BUFFER_UPSAMPLE);
- //fill input with half block size...
- for (unsigned int k = 0; k < mBlockSize/2; k++) {
- cBInput.write(0);
- }
-
//temp vectors
input.resize(mBlockSize);
output.resize(mBlockSize);
@@ -170,6 +165,11 @@
fill_window(mVWindow, RDSP_WINDOW_HANNING_FLAT_TOP, mBlockSize, mOverlapSize);
+ //split window into analysis and synthesis. Both are the sqrt() of original
+ //window
+ Eigen::Map<Eigen::VectorXf> eWindow(&mVWindow[0], mVWindow.size());
+ eWindow = eWindow.array().sqrt();
+
//compute window rms for energy compensation
mWindowRms = 0;
for (size_t i = 0; i < mVWindow.size(); i++) {
@@ -666,6 +666,11 @@
//##ifft directly to output.
Eigen::Map<Eigen::VectorXf> eOutput(&cb.output[0], cb.output.size());
mFftServer.inv(eOutput, cb.complexTemp);
+
+ //apply rest of window for resynthesis
+ Eigen::Map<Eigen::VectorXf> eWindow(&mVWindow[0], mVWindow.size());
+ eOutput = eOutput.cwiseProduct(eWindow);
+
return mBlockSize;
}