Fix sound on .mp4 video

[Scott Lavender]

On Thu, Mar 24, 2011 at 2:15 PM, Ronan Jouchet <ronan at jouchet.fr> wrote:

> On Thu, Mar 24, 2011 at 3:09 PM, Mike Holstein <mikeh789 at gmail.com> wrote:
> > On Thu, Mar 24, 2011 at 2:31 PM, Seattle Chaz <seattlechaz at gmail.com>
> wrote:
> >> I'm shooting video outside under uncontrolled conditions.  I want to
> >> extract the sound clean it up in Audacity and then repackage it with the
> >> video.  How to proceed?  Thanks in advance.
> >>
> > you can check out audacity's noise removal capabilities... EQ and/or
> > compression are the normal tools for tweaking files... you can google for
> > guides on how the pro's do noise removal.. you really dont need a
> 'how-to'
> > for linux/audacity... information on how any professional achieves noise
> > removal with any average tools such as EQ would be helpful for you...
> > routinely, voice-overs are done with pro productions...  ideally, you get
> it
> > right when you are recording it... IF re-recording is not an option, i
> think
> > you'll find some kind of compromise will need to be made, where you
> > sacrifice some wanted frequencies in exchange for cleaning the overall
> sound
> > up...
>
> Hmmm I think his question is more around how to extract audio and
> repackage, not in the audio transformation itself. If I'm right, I
> suggest using Avidemux (Gnome-based) or ffmpeg (CLI). Under Windows,
> MediaCoder (MPlayer based) and VirtualDub are valid and free (as in
> beer and speech) options.
>
> Have fun,
>
> -- Ronan
>
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I second Ronan's suggestion of Avidemux as it is supposed to demux (separate
audio and video) and remux (combine audio and video).

I haven't actually used it though, just going on what I've read about it but
I have had several other people recommend it who actually do use it.

ScottL
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