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Bug2008: There was error in stereo Contrast calculation, at aee4005

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This commit is contained in:
Paul Licameli 2018-10-07 10:29:58 -04:00
parent 3f928a25b0
commit 14fe11f4d4
1 changed files with 5 additions and 2 deletions
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7
src/effects/Contrast.cpp
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@ -62,7 +62,8 @@ bool ContrastDialog::GetDB(float &dB)
return false;
}
for ( auto t : TrackList::Channels( *range.begin() ) ) {
const auto channels = TrackList::Channels( *range.begin() );
for ( auto t : channels ) {
wxASSERT(mT0 <= mT1);
// Ignore whitespace beyond ends of track.
@ -94,7 +95,9 @@ bool ContrastDialog::GetDB(float &dB)
}
// TODO: This works for stereo, provided the audio clips are in both channels.
// We should really count gaps between clips as silence.
rms = (meanSq > 0.0)? sqrt(meanSq/(double)numberSelectedTracks) : 0.0;
rms = (meanSq > 0.0)
? sqrt( meanSq/static_cast<double>( channels.size() ) )
: 0.0;
// Gives warning C4056, Overflow in floating-point constant arithmetic
// -INFINITY is intentional here.