#### keith.rogers

##### Well-known member

I wasn't exactly saying that the LUFS would change 1:1, but the peak(s) *will* change exactly by the amount of gain you apply. (Well, the "theoretical" peaks after D/A, of course.) That's arithmetic. But, you might try using gain on a low mix and see what happens to LUFS. It does depend on the content, but in my simple [mix] world, it's often fairly linear up to a point, maybe enough for a voice-over part of a video, for instance, so long as you have a low-enough noise floor.LOL. IDK where you learned this kinda math, but...

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Edit - To be fair to @keith.rogers, LUFS math isn't exactly as straightforward as RMS or peak math because of the way LUFS is sort of dynamically windowed. Changing the overall level can actually change which samples even get figured into the calculations. I tend to think that a 4db discrepancy would be fairly extreme, though.