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tuning, cleanup

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This commit is contained in:
Christian R. Helmrich
2020-05-01 20:00:09 +02:00
parent a3be5338f2
commit 0ac59ebd84
4 changed files with 12 additions and 67 deletions
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9
src/lib/specAnalysis.cpp
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@ -120,7 +120,6 @@ unsigned SpecAnalyzer::getMeanAbsValues (const int32_t* const mdctSignal, const
const unsigned bandOffset = __min (nSamplesInFrame, bandStartOffsets[b]);
const unsigned bandWidth = __min (nSamplesInFrame, bandStartOffsets[b + 1]) - bandOffset;
const int32_t* const bMdct = &mdctSignal[bandOffset];
#if SA_IMPROVED_REAL_ABS
uint64_t sumAbsVal = (bandStartOffsets[b + 1] == nSamplesInFrame ? abs (bMdct[bandWidth - 1]) : 0);
for (int s = bandWidth - (bandStartOffsets[b + 1] == nSamplesInFrame ? 2 : 1); s >= 0; s--)
@ -140,14 +139,6 @@ unsigned SpecAnalyzer::getMeanAbsValues (const int32_t* const mdctSignal, const
sumAbsVal -= (absReal > absEstIm ? absReal + ((absEstIm * 3) >> 3) : absEstIm + ((absReal * 3) >> 3));
sumAbsVal += absReal;
}
#else
uint64_t sumAbsVal = 0;
for (int s = bandWidth - 1; s >= 0; s--)
{
sumAbsVal += abs (bMdct[s]);
}
#endif
// average spectral sample magnitude across frequency band
meanBandValues[b] = uint32_t ((sumAbsVal + (bandWidth >> 1)) / bandWidth);
} // for b