I'm trying to normalize the audio on my entire media library. My goal is to make every video sound like it’s the same volume as every other video, make videos that were edited together from different sources sound like they have voices and music that sound like they are the same volume throughout the whole video, and lower spikes without lowering any other sounds – basically I'm trying to reverse-engineer the volume leveling feature on my Vizio TV, which I don’t want to use because it occasionally causes this annoying glitch when watched on Plex where the first second or so of a video is at a very noticeably lower volume than it’s supposed to be. I tried to this with batch files with help from google ai and every attempt had the same kinds of issues – having some videos come out sounding echoy, warped in pitch duting certain kinds of sound effects, the trebble of certain sounds being too high, and having certain sounds boosted that shouldn’t have been boosted like tape hiss or the sound if people sighing. We are now working with FFMpeg Batch AV converter, and here are the parameters that Google AI saus will meet my goal exactly without causing any of the problems I didn’t want:
af agate=threshold=-34:ratio=4:attack=15:release=80,loudnorm=I=-14:LRA=11:measured_I=-20:measured_LRA=11:measured_TP=0:measured_thresh=-30:linear=false
I just need confirmation from real people that these paremeters will do exactly what I’m trying to do with none of the issues I just mentioned. I am at risk of messing up my entire library if I don’t get it exactly right and some of my media is absolutely irreplaceable, I need to have these parameters meet my goal for any mp4 I apply it to no matter what, and not have any of the problems I memtioned not show up on amy mp4 no matter what. I’m on vacation right now and won’t be able to test this out until I get home on the 5th.