Baslinux mailing list

[baslinux AT lists.ibiblio.org]

On Fri, 23 Mar 2007 baslinux AT lists.ibiblio.org wrote:

> sindi keesan wrote:
> > [Mikkel wrote:]
> > > http://www.jaymzworld.com/pages/av.shtml
> > >
> > > > I know at least three different ways to extract audio from DVD.
>
> The fastest way to extract audio from a DVD is to use mplayer's -ao
> pcm option with the -novideo option (faster). This only works if you
> can access the DVD with mplayer, of course.
>
> > I think you need a full-duplex sound card to play and record at the same
> > time, something with DMA1 and DMA16 (or DMA2) which are not the same.
> > SBPro probably cannot do that, nor can some cheaper SB cards.
>
> For recording from an analog or digital-to-analog converted source,
> this is correct. Exact digital recordings can be made by something
> like http://www.vsound.org/ -- no sound card required with most
> applications. "what you hear is what you get", etc.
>
> > what command or program do you use to capture the incoming sound
> > to a wav file (to 'set line in as the recording source').
>
> You need to set the recording source to LINE IN in your mixer utility
> (aumix?). Also, adjust the volume level(s) correctly. Then you can use
> any OSS sound recording application. For a quick, but low-quality,
> test, record with:
> cat /dev/dsp >recording.au
> and play back with: cat recording.au >/dev/dsp
> sox, or the rec utility from the sox package, can record to any format
> supported by your sound card.

aumix does not have a 'recording source' line.  Would it be 'Line' or 
'Line1' or 'Mic'?   Mic is currently set to 0, as is Igain.

None of the online sites I found mentioned sox.  The only bin files are 
'play' and 'sox.'  man sox says it translates sound files between formats.
One format is 'raw binary data'.  Does it translate that to .wav?

Please give the details of how to record with sox or aumix, from an 
audio receiver to line in.

I compiled and posted a recording program:
http://keesan.freeshell.org/bl/srp-uclibc.tar.gz
http://keesan.freeshell.org/bl/srp-glibc225.tar.gz

Both dynamic.  Not tested.  Package is all the binaries and two 
documentation files.  Copy the former to /usr/local/bin.

> David

Sindi