Subject: Re: [linux-audio-user] Multiple outputs at the same time
From: foltra_AT_terra.cl
Date: Sat Jul 26 2003 - 01:33:33 EEST
Hi Daniel!
You should go alsa 0.9, for this try planetccrma for making
the upgrade easy.
Alsa has the dmix plugin for mixing sources.
Haven't checked this, i'm jackified :-)
On Fri, 25 Jul 2003, Daniel Klein wrote:
> Hello,
>
> again, excuse the very basic nature of my question, I should have found these
> answers myself, but I tried long and just couldn't. Maybe the internet as
> such dislikes me.
>
> I want to do something very basic. Basically that is let multiple programs
> talk to my soundcard at the same time. Simple example: XMMS is playing a
> song, someone on IRC uses a keyword to page me, my XChat perl script calls
> some form of command line mp3/wav playback program and plays a sound that
> gets my attention. Or XMMS is playing and I access a webpage with a Flash
> animation. Or the aforementioned paging situation happens while watching a
> movie with mplayer. Currently, none of those are possible to me. I must say I
> am very ignorant in this area still, am really willing to educate myself but
> find myself unable to find anything BASIC on this. A little FAQ on basic
> terminology would be grand already. What do you call things like ALSA, Esound
> and what not? How does stuff like KDE's aRts fit in?
>
> Anyway, I am running ALSA 0.5. I have tried to upgrade to an ALSA 0.9x once,
> but I remember faintly there were serious problems, so I tried to circumvent
> that upgrade for the time being. Will an ALSA 0.9x version offer me this
> functionality of multiple sound sources at the same time? I used esound once
> too, while I'm absolutely foggy as to how that worked. I installed it, told
> XMMS to talk to esound and then used a play utility that came along with
> esound. That's how I solved the XMMS is playing + notify sound from XChat
> should play situation. But esound seems to have the latency of a really tired
> old man, and that looked plain retarded with the little visualization window
> of XMMS. I know I know, not the end of the world, but other programs also
> didn't like to talk to esound (including mplayer). Will I need to upgrade to
> ALSA 0.9 then? Is that the standard right now? What other options do I have?
>
> Again, if you can just point me to a general FAQ about all this, please by any
> means do so.
>
> Many thanks,
>
> Daniel
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