--- a/webaudio/specification.html	Mon Feb 25 15:52:15 2013 -0800
+++ b/webaudio/specification.html	Mon Feb 25 16:01:27 2013 -0800
@@ -4087,15 +4087,9 @@
 partial interface <dfn>AudioNode</dfn> {
 
     // Channel up-mixing and down-mixing rules for all inputs.
-    
-    attribute unsigned long channelCount
-        setter raises(DOMException);
-
-    attribute ChannelCountMode channelCountMode
-        setter raises(DOMException);
-
-    attribute ChannelInterpretation channelInterpretation
-        setter raises(DOMException);
+    attribute unsigned long channelCount;
+    attribute ChannelCountMode channelCountMode;
+    attribute ChannelInterpretation channelInterpretation;
 
 };
 </code></pre>