[Libav-user] loudnorm filter and EBU R128 standard
Paul B Mahol
onemda at gmail.com
Sun Feb 27 13:50:51 EET 2022
On Wed, Feb 5, 2020 at 10:33 PM Jiming Shi <jmshi.astro at gmail.com> wrote:
> Recently I'm looking into ways of doing audio loudness normalization and
> came across ffmpeg filter `loudnorm` .
> According to EBU R128 standard: "measurement shall include a gating
> method as specified in ITU-R BS.1770" which requires a momentary
> measurement which is 400ms instead of the shortterm one (3sec) used in the
> loudnorm filter:
> Did I miss something here? And is there a way to make the change in
That code part is used for dynamic mode, which is not part of standard.
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