[sdiy] Voyager waveform animation

[Theo]

To get MP3 audio from a video file you need a stream splitter.
Most video editing software can do this but there are also standalone
utilities.
Just google around, there is plenty of quality freeware video stuff out
there.
Depending on what format the source audio in the video file was and the tool
used to separate the streams you may end up with a WAV or AC3 or MP2 or MP3
or OGG or...

This works for most containers like MPG, AVI, OGM, VCD, SVCD, etc.
However if you have a RM or a WMA source your out of luck.
At least there are no (free) tools I know about.

HTH
Theo



From: Richard Wentk <richard at skydancer.com>


> At 11:16 08/08/2003 -0700, Tim Ressel wrote:
> >Yo,
> >
> >Here's a question for all the tech-heads out there:
> >How can I capture NTSB video on my computer (windows)
> >and make an MP3 out out it? With sound of course. I'm
> >thinking scope camera like John sed.
>
> You can't make an MP3 out of video, because it's not a video format.
>
> The most common video formats are MPEG1, MPEG2, and occasionally MJPEG. If
> you have a MiniDV camera you can also record DV format AVI, but that's too
> chunky for online distribution. There are also RealVideo and WMA, which
are
> low quality but very good for online distribution.
>
> The easiest way to capture video is (surprise...) to buy a video capture
> card. If your scope camera has an s-video or composite video connector and
> produces the NTSC format, it's just a case of plug-in and go. Pinnacle,
> Hauppage and assorted others all make video capture hardware. In
increasing
> order of cost you can get:
>
> A PCI capture card (perhaps with a TV tuner built-in, so you can read
> Teletext and record your fave shows to hard disk)
> USB capture (no tuner)
> A PCI card with built-in real-time MPEG1 or MPEG2 compression (probably
> overkill for what you need)
> An external capture box with various video in and out connections
> Any or all of the above with suitable editing s/ware.
>
> For s/ware I'd recommend Pinnacle Studio 8 for editing. Cheap capture
> hardware bundled with Studio 8 shouldn't cost more than $100. You'd most
> likely capture your scope sequences first (including sound at the same
> time) then export them as RealVideo .rm files which can be downloaded from
> your site.
>
> If you plan to get more seriously into video, Sonic Foundry's Vegas is a
> good choice. But at around $400 you have to be a *lot* more serious.
>
> Oh yeah. You'll need a fast-ish PC too. Both disk and processor speed
> matter for video. (Much more than they do for audio!) 10MB/s and a 1GHz
> anything would be a likely bare minimum, but the faster everything goes
the
> easier your life gets.
>
> Richard
>
>