CODEWITHSUNDEEP
audioffmpegmovieclipmovie
somejkuser
somejkuser

Reputation: 9040

recompiling audio from a movie source

Is it possible to recompile movie files to re-stream the audio so they all have the same volume level? We've got users submitting videos and to me it seems some are higher in volume whereas others are not, and they all have the same volume level on the controls, and i'd like to standardize this so all movie files have the same volume levels.

I was thinking of ffmpeg although I only have novice knowledge of this technology and haven't done my research in it yet.

Anyway if there's anything available I'd love to know.

Thanks!

Upvotes: 0

Views: 554

Answers (1)

Gyan
Gyan

Reputation: 93261

FFmpeg has a loudnorm filter that will normalize the audio to meet EBU R128 recommendations. Basic syntax is

ffmpeg -i video.mp4 -c:v copy -af loudnorm out.mp4

A faster filter is dynaudnorm but this one may alter the audio shape a bit, or so I'm told.

ffmpeg -i video.mp4 -c:v copy -af dynaudnorm=r=0.5 out.mp4

Upvotes: 2

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