diff --git a/12/index.html b/12/index.html
index 9925339..ca79dd0 100644
--- a/12/index.html
+++ b/12/index.html
@@ -51,9 +51,9 @@
           RADIO IMPLICANCIES #12.6 ∿∿∿∿ ∿∿∿∿ <br>
         </div>
         <div class="audio_06">
-          <audio controls=""><source src="12.6-archive.ogg" type="audio/ogg">
+          <audio controls=""><source src="12.6-archive.mp3" type="audio/mp3">
           <track default="" kind="captions" srclang="en" src=
-          "archive_12.6.vtt"></audio>
+          "12.6-archive.vtt"></audio>
         </div>
 
         <div id="chat06"> live comment <br> during the broadcast<br><br>