Re: amplify audio with ffmpeg?

Media Streaming Services wrote:
> > Hi,
> >
> > How can i Amplify audio with ffmpeg?
> > If not, what should I use? MEncoder?
>
> you may use -vol 200 (to boost it twice)
> in mencoder you also have option of using an equalizer to supress
> noises, highlight speech, etc.

-vol is a ffmpeg flag or a MEncoder flag?

Thank you