Re: [Alsa-user] Play two sounds at once

[Lee Revell <rlrevell@joe-job.com>]

On Sat, 2005-12-17 at 13:36 -0500, Lee Revell wrote:
> On Sat, 2005-12-17 at 18:48 +0100, Wulf Assols wrote:
> > Hi Lee!
> > 
> > On Fri, 16 Dec 2005, Lee Revell wrote:
> > 
> > > On Fri, 2005-12-16 at 15:41 +0200, Ismail Donmez wrote:
> > > > Cuma 16 Aral?k 2005 15:33 tarihinde, Darrell Blake ?unlar? yazm??t?: 
> > > > > > Use a recent version of ALSA which setups dmix automagically, so you can
> > > > >
> > > > > play
> > > > >
> > > > > > do this without configuring anything.
> > > > >
> > > > > I think I'm already using the latest version of ALSA. I'm running the
> > > > > 2.6.14.3 kernel and whichever version of ALSA comes with it.
> > > > 
> > > > Then your soundcard might not be able to do dmix at all. Worth a check 
> > > > alsa-wiki.
> > > 
> > > Any soundcard can do dmix, as the point of dmix is to do mixing in
> > > software for devices that can't do it themselves.  Some are just more
> > > work to get the .config right, like usb-audio and ICE1724, so it does
> > > not work OOTB yet.
> > > 
> > > Lee
> > what do you have to do to make dmix work with the ICE17xx chip? (i got an
> > ICE1712)
> 
> Make sure you have alsa-lib 1.0.10 or newer installed and remove
> your .asoundrc and it should work.  I don't have one of these devices
> but IIRC people have reported it should work.  Maybe someone who has
> this working with ALSA 1.0.10 or newer can help more?

Never mind, it looks like ICE1712.conf does not configure dmix
automatically after all.

Try this patch.

Lee

ICE1712: Use dmix/dsnoop by default

Signed-Off-By: Lee Revell <rlrevell@joe-job.com>

Index: alsa-lib/src/conf/cards/ICE1712.conf
===================================================================
RCS file: /cvsroot/alsa/alsa-lib/src/conf/cards/ICE1712.conf,v
retrieving revision 1.8
diff -u -r1.8 ICE1712.conf
--- alsa-lib/src/conf/cards/ICE1712.conf	27 Jan 2004 09:47:13 -0000	1.8
+++ alsa-lib/src/conf/cards/ICE1712.conf	17 Dec 2005 19:13:03 -0000
@@ -2,6 +2,29 @@
 # Configuration for the ICE1712 (Envy24) chip
 #
 
+# default with dmix & dsnoop
+ICE1712.pcm.default {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type asym
+	playback.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+	capture.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+}
+
 <confdir:pcm/front.conf>
 
 ICE1712.pcm.front.0 {




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