To cat means to loop the file until it is longer then 0,4s? Yes we tried, there is a variation of 3db or more, so it is kind of suboptimal. We also know the loudnorm command.
We use this command atm to read out values: ffmpeg -nostats -i 'filename' -filter_complex ebur128 -f null - and it is fine with all files >0,4s. As it should be relating to the ebu128 definition. Anyway, our customer provides us with lufs values for shorter lenghts and he wont tell us how he analyses it. Now we tried to read out momentary lufs, as it works with 400ms windows, but im not sure if i get correct values here. As it shows -120db mLUFS for an example and on proTools it says -23--24db (with DPMeterXP2) Anybody an idea how to read out reliable momentary LUFS values with ffmpeg? -----Ursprüngliche Nachricht----- Von: ffmpeg-user <[email protected]> Im Auftrag von Gyan Doshi Gesendet: Montag, 14. September 2020 09:50 An: [email protected] Betreff: Re: [FFmpeg-user] LUFS measurment for short length audio On 14-09-2020 01:15 pm, Bouke wrote: >> On 09 Sep 2020, at 10:33, [email protected] wrote: >> >> >> >> Hi list! >> >> >> >> Can somebody help to measure LUFS for audio files under 0,4 seconds??? >> > Cat it a couple of times first? A few more times is required. Total duration should be >3 seconds. See https://superuser.com/q/1281327/ Gyan _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
