On Fri, 23 Jan 2004 15:24:18 -0500 (EST)
"Jason M. Sullivan" <[EMAIL PROTECTED]> wrote:

> It has.  I've gotten to the point where I can record (the trick with
> using hexdump on http://alsa.opensrc.org/index.php?page=AlsaTips was
> particularly helpful), but things get all screwy when I throw dsnoop
> into the mix.
> 
> % arecord -D hw:0 -d 10 -f cd -t wav file.wav
> 
> Works fine, and I get a spiffy recording out.
> 
> % arecord -D plug:dsnoop -d 10 -f cd -t wav file.wav

This is weird. I tested it and i got the same results. Recording
directly via hw:0 works, while the plug:dsnoop failed.. It is a buzzing
sound. I suppose the fundamental frequency is around 50-150hz [my ears
ain't especially ood though].. I can post a sample clip for the others
to hear if needed.. But i suppose this depends on the period size, etc..
It definetly sounds like one period repeated forever.

ALSA 1.0.1 here..

> 
> Gives me garbage.  It sounds like a little snip (like, .1 seconds
> worth) of what's coming in, repeated over and over again for 10
> seconds.  My OSS expreiment with dsnoop gave the same results (which
> makes me think the OSS emulation part is right).

Yes, i think so, too. I also think that maybe dsnoop has a bug.

> 
> My .asoundrc looks like this...
> 
> pcm.dsp0 {
>     type plug
>     slave.pcm "dsnoop"
> }
>                                                                     
           
> # mixer0 
> ctl.mixer0 {
>     type hw
>     card 0
> }
> 
> ...any suggestions?  Thanks for all the help so far.

Yes, if you get dsnoop to work you can use the asym plugin to define a
pcm device for OSS that uses dmix and dsnoop giving you a full duplex
device sharable by many apps.. I created an ad hoc wiki page for asym
[which consists mainly on takashis emails to this list]:

http://alsa.opensrc.org/index.php?page=asym

Flo


-- 
http://www.soundclick.com/bands/9/florianschmidt.htm
http://www.arted.biz/mista.tapas


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