Update '12/index_test.html'

12/index_test.html

@@ -33,7 +33,7 @@
       <div class="schedule_04">PROGRAMME #12.4<br>04/06 at 16:00 (UTC+2)</div>
       <div class="audio_04">
         <audio controls>
-        <source src="archive_12.1.4.mp3" type="audio/mp3">
+        <source src="http://echo.lurk.org:999/radioimplicancies.ogg" type="audio/ogg">
               <track default kind="captions"
                srclang="en"
                src="archive_12.1.4.vtt"/>