Re: Using audio device to aquisition.

Hi Alexandre!

On Mon, Apr 03, 2006 at 04:03:13PM -0300, Alexandre wrote:

> I was thinking on using the audio device (wich has a AD and a DA) to
> data acquisition, but, I didn't find any comedi driver for it.  Does
> it realy haven't a driver for it on comedi?  (I would like to write,
> maybe)
>    And what you think of this idea?
>    I think there must be something like that on the web...

You should check xoscope (http://xoscope.sourceforge.net), which can do exactly
that. It's a good idea to make a buffer circuit (xoscope has a schematic and
I've tried and it works). I have one running, and it's pretty good for AC
signals (the sound card input is AC coupled, any DC offset is filtered).

A COMEDI driver for ALSA could be a neat thing to have, though...

Bye & Good Luck!

Pablo B.

Received on 2006-04-03Z18:16:18