[FFmpeg-user] removing audio from section of video

[Liam Condron-Farnos]

You can mute the sound (rather than deleting the audio track) with the volume
filter <http://ffmpeg.org/ffmpeg-filters.html#volume>, use `-filter:a
'volume=0'`. If you can get your head around it, you can probably use
asendcmd <http://ffmpeg.org/ffmpeg-filters.html#volume> in combination with
the volume filter to do what you want, but

>instead of battling with archane and seldom-used command-line
>options (to me) in cases like this, I normally just open the file in a
video
>editor and mute the required segment.

^this is probably the easiest answer.


On 16 January 2013 06:19, Francois Visagie <francois.visagie at gmail.com>wrote:

> > -----Original Message-----
> > From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-
> > bounces at ffmpeg.org] On Behalf Of johnd
> > Sent: 15 January 2013 23:26
> > To: FFmpeg user questions
> > Subject: Re: [FFmpeg-user] removing audio from section of video
> >
> > On Tue, Jan 15, 2013 at 08:22:13PM +0000, Carl Eugen Hoyos wrote:
> > > johnd <john <at> jjdev.com> writes:
> > >
> > > > If I want to say remove the audio from a part of a video,
> > > > must I first break that out then replace the audio for
> > > > the entire piece, then concat back together?
> > >
> > > (I find this very difficult to understand, typical
> > > questions on this list are: "I tried ffmpeg -i input
> > > -c copy out.avi - see complete, uncut console output
> > > at the end of my email - how can I remux only the
> > > video?")
> >
> > I'm trying to understand things conceptually.  I am describing
> > a process I am trying to accomplish.
> >
> > For example:
> >
> > I have an input video.  At 10 seconds into the video I want to remove
> > audio for 5 seconds, then have the audio continue.
> >
> > I am trying to understand the general steps so I can then decide
> > how to construct the command line args.
> >
> > I was assuming (from the little I have learned) that I would
> > have to first cut the video into three, remove sound from the section
> > from 10 seconds in (duration 5) and then concat all three.
> >
> > Then I'd have a file that was missing sound from the 10 second point
> > for 5 seconds.  (question? shouldn't it have sound that is muted as
> > opposed to no sound track?)
> >
> >
> > I just want to understand if this is the way it would be done (at
> > a high level), or if there is another process I should follow
> > to get my end goal.
>
> Although I haven't tried it, I suspect what you're describing is possible
> with ffmpeg.
>
> However, instead of battling with archane and seldom-used command-line
> options (to me) in cases like this, I normally just open the file in a
> video
> editor and mute the required segment.
>
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