On 3/7/22, CMG DiGiTaL <cmarc...@gmail.com> wrote: > hi, > > About loudnorm normalization: Normalization in Dual-pass mode. > > Rules for normalization to be linear: > > 1 - Values entry: > LUFS_TARGET (user entry) > LRA (get input file - Pass 1 loudnorm)
where is measured_tp ? > TP_TARGET (user entry) > THRESH (get input file - Pass 1 loudnorm) > OFFSET (get input file - Pass 1 loudnorm) do not change offset option, but only measured_thresh > > 2 - The destination LRA must NOT BE LESS than the source LRA: > LRA_OUT >= LRA_IN > > 3 - The destination TP must NOT BE GREATER than the target TP: > TP_OUT <= TP_TARGET > > If these conditions are met, normalization will be done in linear mode > and, if there is any divergence, normalization will be done in dynamic > mode. > > These rules are never met... I normalized more than 20 audio files and > in none of them the linear rule was executed, only the dynamic rule! > > In all my FLAC audios, the destination LRA's are always lower than the > source LRA's! > > Has anyone managed to do the normalization in linear mode... what do I > have to do to get linear normalization? > ffmpeg -i tom.wav -af loudnorm=print_format=summary:measured_i=-17.8:measured_tp=-0.3:measured_lra=10.7:measured_thresh=-28.9:lra=50:i=-20 -f null - You can not set output TP to much lower values and output I to much higher values than measured and expect linear processing. Post measured values of your flac files and target values you set? _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
