[FFmpeg-user] sound volume normalisation
renaux.jacky at orange.fr
Wed Jun 26 17:39:05 CEST 2013
Le 26/06/2013 02:28, Lou a écrit :
> On Wed, 26 Jun 2013 01:58:43 +0200
> "Bouke \(VideoToolShed\)" <bouke at videotoolshed.com> wrote:
>> ----- Original Message -----
>> From: "Moritz Barsnick" <barsnick at gmx.net>
>> To: "FFmpeg user discussions" <ffmpeg-user at ffmpeg.org>
>> Sent: Wednesday, June 26, 2013 12:18 AM
>> Subject: Re: [FFmpeg-user] sound volume normalisation
>>> On Tue, Jun 25, 2013 at 19:56:23 +0200, jacky wrote:
>>>> 1. demux video , demux audio
>>>> 2. run lame to find out the sound level
>>> Have you seen ffmpeg's volumedetect filter?
>>> The example says it all.
>> Not to sound more arrogant than i actually am, I can't praise the Lords of
>> R128 Loudness enough.
>> This volumedetect is a nice function eg to plot waveforms, (and i did not
>> know about it, so thanks!)
> Also see tools/normalize.py
> (I haven't actually investigated or tried it yet though).
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> ffmpeg-user at ffmpeg.org
many thanks to all of you ,
I knew volume detect on window, but the linux server
was not up to date (lavfi) was not recognized
and it will be
(by the way is there a way to run the volume detect without lavfi
if you only need mean et max volume values )?
I will then set up the volume based on volumedetect value
again thanks to these advices
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