8

FFmpeg's loudnorm filter can be used. Basic syntax is ffmpeg -i in.mp4 -c:v copy -af loudnorm=I=-23:LRA=1 -ar 48000 out.mp4 The loudness range (LRA) should be 2 x max deviation. Also see the ebur128 filter for measuring loudness.


3

Yes. You can use FFmpeg, a free command-line tool, like so: ffmpeg -i video.wmv -c:v copy -af dynaudnorm out.wmv dynaudnorm is a dynamic audio normalizer, which will maintain the original range dynamics and avoid clipping while applying the maximum gain possible given those constraints.


2

In general loudness correction is a two step process. (There's a little more to it for full EBU R128 compliance, but I work exclusively in the US and this all that is required for A/85 / CALM Act compliance.) Measure the long term/infinite loudness of the asset. Shift the level of the asset by the difference between the measured loudness and the target. ...


2

This is a copy and paste from a similar previous question which I answered: In order to even out the audio of a single stream; you will want to either mix by hand as noted above; or you can use dynamics; specifically Compression. Within the PPro audio mixer, apply dynamics to the audio tracks, or master track. You can then use the compressor within the ...


1

Audition has a couple of tools that lets you measure loudness. There's the Amplitude Analysis window that lets you scan a whole mix or sound file, and tells you the LUFS loudness (which is the same as LKFS, aparently): There's also the "Loudness Radar" that has a sexy GUI, but seems to only scan in real time (though I might be using it wrong). If you use ...


1

I'm not sure about leveling the audio automatically. You could probably find an effect that does this, after all audio normalisation is a pretty common feature even in audio players, let alone editors. However, I doubt that it would give the exact result you want and given that you are using Premiere Pro, you will probably want more flexibility and manual ...


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