Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-05-04 17:49:45 +02:00
Code Issues Releases Wiki Activity

Added missing bias value in Normalize LUFS calculation.

Browse Source
This commit is contained in:
Max Maisel 2018-07-26 17:01:45 +02:00
parent 0ed9b9d34b
commit e68ea1a272
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/effects/Normalize.cpp
View File

@ -239,6 +239,11 @@ bool EffectNormalize::Process()
mMult = ratio / extent;
else
mMult = 1.0;
if(mUseLoudness)
// LUFS is defined as -0.691 dB + 10*log10(sum(channels))
extent *= 0.8529037031;
msg =
topMsg + wxString::Format( _("Processing: %s"), trackName );
if(track->GetLinked() || prevTrack->GetLinked()) // only get here if there is a linked track but we are processing independently
@ -267,9 +272,13 @@ bool EffectNormalize::Process()
break;
if (mUseLoudness)
{
// Loudness: use sum of both tracks.
// As a result, stereo tracks appear about 3 LUFS louder, as specified.
extent = extent + extent2;
// LUFS is defined as -0.691 dB + 10*log10(sum(channels))
extent *= 0.8529037031;
}
else
// Peak: use maximum of both tracks.
extent = fmax(extent, extent2);