send audio direct to analyzer

index.html

@@ -12,6 +12,9 @@
   <div class="panels">
     <div>
       <h2>Message</h2>
+      <label>
+        <input type="checkbox" id="send-via-speaker">Speakers
+      </label><br />
       <input type="text" id="text-to-send">
       <button id="send-button">Send</button><br />
       <textarea id="sent-data" rows="10" cols="40"></textarea><br />