diff --git a/src/conf/pcm/dmix.conf b/src/conf/pcm/dmix.conf
index d387f95f..addcaf7c 100644
--- a/src/conf/pcm/dmix.conf
+++ b/src/conf/pcm/dmix.conf
@@ -49,7 +49,7 @@ pcm.!dmix {
 					".pcm.dmix.period_size"
 				]
 			}
-			default 1048
+			default 1024
 		}		
 		period_time {
 			@func refer
@@ -79,7 +79,7 @@ pcm.!dmix {
 					".pcm.dmix.periods"
 				]
 			}
-			default 8
+			default 16
 		}
 	}
 }