[audacity4blind] Re: audio from video
- From: Gale Andrews <gale@xxxxxxxxxxxxxxxx>
- To: audacity4blind@xxxxxxxxxxxxx
- Date: Wed, 16 Nov 2011 16:58:31 GMT
| From "Greg" <sonnygdp@xxxxxxxxxxxxx>
| Tue, 15 Nov 2011 15:12:29 -0500
| Subject: audio from video
> Thank you so much for your response. I have a few more questions.
> You mentioned using the left and right brackets to highlight portions of
> the sound track. Do I need to be in a particular mode to do that? I have
> tried, but it doesn't seem to be working. Is there someway to tell if a
> portion has been highlighted?
Greg, sorry I am not actually visually impaired, so I can't give you
detailed help. Have you read David's JAWS guide:
http://vip.chowo.co.uk/wp-content/uploads/jaws/Audacity-1.3.13-Guide.html ?
The noise sample does not have to be long. If you import the file then
you only need to press Space to start playing it. Press [ as soon as
you hear the start of some audio that is only noise, then immediately
press ] to capture the selection, followed by Space to stop playback.
Press Space again to play the selection.
> Also, will this add on allow me to repair and replace damaged audio
> on the video?
FFmpeg allows you to import audio into Audacity from video files
rather than using Switch to convert the audio to WAV first.
You can use Noise Removal and other tools in Audacity to clean
the audio up.
FFmpeg will let you export to the same audio format that the video
was in originally. This is important, because the video format you
have may not accept WAV for the repaired audio. You can download
MediaInfo to find out the original format the audio of the video was
in:
http://mediainfo.sourceforge.net/en .
Gale
> ----- Original Message -----
> From: "Gale Andrews" <gale@xxxxxxxxxxxxxxxx>
> To: <audacity4blind@xxxxxxxxxxxxx>
> Sent: Tuesday, November 15, 2011 12:36 PM
> Subject: [audacity4blind] Re: audio from video
>
>
> >
> > | From "Greg" <sonnygdp@xxxxxxxxxxxxx>
> > | Mon, 14 Nov 2011 23:00:09 -0500
> > | Subject: audio from video
> >> I downloaded Switch and extracted the audio from my video.
> >
> > Note that Audacity Beta can extract audio from video files if you add
> > the optional FFmpeg library to your computer:
> > http://manual.audacityteam.org/man/FAQ:Installation_and_Plug-Ins#ffdown
> >
> > This means you can select and import a video file using the standard
> > File > Open or File > Import > Audio menu in Audacity. If you
> > download "FFmpeg for Audacity" from the above page, you will
> > need to use Audacity 1.3.13 (the current Beta).
> >
> >
> >> How do I highlight the portion of the audio to use as my sample of
> >> what I want to delete?
> >
> > In the usual way, for example by pressing [ and ] when you hear some
> > audio that is only noise. The ] key will draw a selection between the
> > points in the audio where you pressed [ and ].
> >
> > Instructions for Noise Removal are here:
> > http://manual.audacityteam.org/man/Noise_Removal
> >
> >
> >
> >
> > Gale
> >
> >> ----- Original Message -----
> >> From: Tony Olivero
> >> To: audacity4blind@xxxxxxxxxxxxx
> >> Sent: Monday, November 14, 2011 9:59 PM
> >> Subject: [audacity4blind] Re: audio from video
> >> From: Greg [mailto:sonnygdp@xxxxxxxxxxxxx]
> >> Sent: Monday, November 14, 2011 21:40
> >> To: audacity4blind@xxxxxxxxxxxxx
> >> Subject: [audacity4blind] audio from video
> >>
> >>
> >>
> >> Is it possible to extract audio from a video file with audacity beta
> >> using Windows Vista?
> >>
> >> Is there an audio extractor that works with Jaws?
> >>
> >> I have home videos with terrible static that I would like to clean.
> >>
> >> Greg
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