Re: Simultaneous sounds with ALSA?

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On Fri, 09 Apr 2004 19:43:11 +0200
Christoph Wickert <christoph.wickert@xxxxxx> wrote:

> Am Fr, den 09.04.2004 schrieb Andre Costa um 18:38:
> > On Thu, 08 Apr 2004 16:59:57 +0200
> > Christoph Wickert <christoph.wickert@xxxxxx> wrote:
> > 
> > > > Agreed, but sometimes this is not an option ;)
> > > 
> > > Yes, but I think this was mentioned in my mail.
> > 
> > Sorry, I might have missed that.
> 
> No Problem. Maybe you should point out the difference between hardware
> and software mixing more clearly in your article, for it caused a lot
> of confusion on this list I think. So first step should be checking if
> your card supports hardware mixing on
> http://www.alsa-project.org/alsa-doc/index.php3?vendor=All#matrix

Right, makes sense. I will write a revised version of the article.

> > Now that would be cool -- I don't recall it working here, that's why
> > I went after the solutions I posted on that HOWTO. AFAICS I have
> > OSS-compatibility enabled; how can I check that? Is it simply a
> > matter of configuring /etc/modules.conf? Any specific compilation
> > flags needed?
> 
> Nope, it's only /etc/modules-thing: I have posted my modules.conf in a
> previous mail, the important lines are:
> 
> # OSS/Free portion
> alias char-major-14 soundcore
> alias sound-slot-0 snd-card-0
> (alias sound-slot-1 snd-card-1  # if you have another soundcard)
> 
> Then set up your applications to use OSS (usually default) or alsa, if
> supported. E.g I can run xmms with alsa or with oss output selected,
> there's no difference (In fact I heard of people who had problems with
> bad sound using alsa plugin. Also if you are using the on-screen
> display in xmms it will show the volume settings whenever a new song
> starts -> very annoying I think, so I chose OSS output.)

That's odd... I just tried it here (my /etc/modules.conf have those same
lines), and with OSS xmms 'steals' sound device, and gxine is unable to
output any sound until xmms is closed. And then, if I run gxine before
xmms, it (xmms) refuses to play and complains someone else owns the
sound device -- which was precisely the problem that led me to write
that article. Any idea what might be the problem?

> > I would really love to update that article if I were to make it
> > simpler=)
> 
> No, I think it's ok! Your article is exactly how it should be done, my
> way is just for lazy one's :-)

Thks, hopefully it will come out of this discussion a little bit better
;)

Thks for the help.

Best,

Andre

-- 
Andre Oliveira da Costa



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