[FFmpeg-user] Sound level

[Boštjan Strojan]

On Thu, Feb 16, 2012 at 8:44 AM, jacky <renaux.jacky at orange.fr> wrote:
> Hi
>
> I have to modify the sound level from several flv files
> I have to check first how much it must be increased
> And then later apply the ffmpeg -vol command
> Is there a command for such ?
>
> Thanks for your insight
>
> Regards
> Jacky

The procedure i would try first would be:

1. demux audio, should be mp3?
2. apply mp3gain (i'am sure there are several ways to do that today)
3. remux the audio and video back

and voila, no losses at all and audio should be leveled,

b.