Don't forget the audio portion of your video. YouTube currently specifies a loudness normalization level of -14 LUFS. Anything hotter than that will get YT brute force normalizing, and your audio quality will suffer.

TBProAudio have several useful tools for this.

dpMeter 4 is a free meter that includes LUFS measurements.
https://www.tb-software.com/TBProAudio/dpmeter4.html

FinalLoud2 (29 €) is a True Peak limiter that will automatically match the master buss level to a target level.
https://www.tb-software.com/TBProAudio/finalloud2.html

dpMeterXT2 (79 €) is a very fancy version of the freebie.
https://www.tb-software.com/TBProAudio/dpmeterxt2.html

There are similar products from other companies.


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