diff --git a/index.bs b/index.bs
index aaa994a..878933b 100644
--- a/index.bs
+++ b/index.bs
@@ -550,12 +550,12 @@ platform UI or media keys, thereby improving the user experience.
       A user agent MUST invoke the {{MediaSessionActionHandler}} for
       {{MediaSessionAction/voiceactivity}} only when voice activity is detected
       from a microphone with one or more live {{MediaStreamTrack}}s. A user
-      agent MAY ignore a {{MediaSessionAction/voiceactivity}} action if all
-      {{MediaStreamTrack}}s associated with the source are not
-      {{MediaStreamTrack/muted}}. It is RECOMMENDED for user agents to set a
-      minimal interval between invocations of the {{MediaSessionActionHandler}}
-      for {{MediaSessionAction/voiceactivity}} based on privacy and power
-      efficiency policies.
+      agent MAY ignore a {{MediaSessionAction/voiceactivity}} action if
+      microphone is not muted and all {{MediaStreamTrack}}s associated with the
+      source are {{MediaStreamTrack/enabled}}. It is RECOMMENDED for user agents
+      to set a minimal interval between invocations of the
+      {{MediaSessionActionHandler}} for {{MediaSessionAction/voiceactivity}}
+      based on privacy and power efficiency policies.
     </p>
 
     <p class=note>