Are LU the amount of decibels over 89 (or in rare cases, below 89 db)? That is how Wavegain calculates it. I wonder how the two compare.
Usually, I put my files through either Wavegain or mp3gain first, while keeping an eye on the values, then I use the foobar DR scanner separately. If I am getting constant values that are over 95-96 db, usually there is no need to go further with the DR scan. Unless I have a particular interest in the music (the Sunsoft album had Blaster Master and Journey to Silius arranges), experience has told me it's not worth keeping at that point.
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