[FFmpeg-user] audio normalization - nth attempt
Paul B Mahol
onemda at gmail.com
Tue Apr 13 19:25:26 EEST 2021
On Tue, Apr 13, 2021 at 7:42 AM Emanuel Berg <moasenwood at zoho.eu> wrote:
> Paul B Mahol wrote:
> >>> One problem with just af=dynaudnorm is that when you
> >>> backtrack to play a sequence again the volume drops so
> >>> much you don't hear anything, almost, until it picks up
> >>> much later.
> >> This helps for that
> >> af=dynaudnorm=g=7
> > That enables very agressive compression.
> Please visit Uppsala, Sweden, we'll watch 4K Ultra HD
> "Mission Impossible 6: Fallout" together with and without it.
> With it, works great. Without it, you barely hear what the
> say (you don't hear what they say) yet 5s later, firefight
> BOOM BOOM BOOM with dramatic music and the building wakes up.
> > Have you ever read documentation of dynaudnorm filter, the
> > ffmpeg one or the original one?
> I don't know, I have read ffmpeg-filters(1) lines 2885-2899
> and 2918-2935.
Try alt boundary option, b=1, that will prevent fades after seek/start.
> underground experts united
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