--- alsa.conf.org	2004-02-04 12:28:31.000000000 +0000
+++ alsa.conf	2004-03-25 19:27:34.207640104 +0000
@@ -228,6 +228,12 @@
 	}
 }
 
+pcm.duplex {
+	type asym
+		playback.pcm "dmix"
+		capture.pcm "dsnoop"
+}
+
 pcm.shm {
 	@args [ SOCKET PCM ]
 	@args.SOCKET {