diff --git a/demos/gum-canvas.html b/demos/gum-canvas.html
index f02559d..c61443e 100644
--- a/demos/gum-canvas.html
+++ b/demos/gum-canvas.html
@@ -85,24 +85,26 @@ slider.oninput = slider.onchange = function () {
   tb = rgb[2];
 };
 
+function successCallback(stream) {
+  window.stream = stream;
+  if (window.webkitURL) {
+    video.src = window.webkitURL.createObjectURL(stream);
+  } else {
+    video.src = stream;
+  }
+  video.play();
+}
+
+function errorCallback(error) {
+  console.error('An error occurred: [CODE ' + error.code + ']');
+  return;
+}
 
 function init() {
   // from HTML5 Doctor article: http://html5doctor.com/getusermedia/
   navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia;
   if (navigator.getUserMedia) {
     navigator.getUserMedia({ video: true }, successCallback, errorCallback);
-    function successCallback(stream) {
-      window.stream = stream;
-      if (window.webkitURL) {
-        video.src = window.webkitURL.createObjectURL(stream);
-      } else {
-        video.src = stream;
-      }
-    }
-    function errorCallback(error) {
-      console.error('An error occurred: [CODE ' + error.code + ']');
-      return;
-    }
   }
 }
 
diff --git a/demos/gum.html b/demos/gum.html
index ecc680d..77dd1f4 100644
--- a/demos/gum.html
+++ b/demos/gum.html
@@ -7,6 +7,7 @@
 
   .supported video,
   .supported audio { 
+    width: 100%;
     /* I'm using CSS3 to translate the video on the X axis to give it a mirror effect */
     -webkit-transform: rotateY(180deg) rotate3d(1, 0, 0, 0deg); 
     -o-transform: rotateY(180deg) rotate3d(1, 0, 0, 0deg); 
@@ -32,28 +33,29 @@ var video = document.getElementById('video'),
     article = video.parentNode,
     gum = document.getElementById('gum');
 
+function successCallback(stream) {
+  window.stream = stream;
+  if ('mozSrcObject' in video) {
+    video.mozSrcObject = stream;
+  } else if (window.webkitURL) {
+    video.src = window.webkitURL.createObjectURL(stream);
+    // document.querySelector('audio').src = window.webkitURL.createObjectURL(stream);
+  } else {
+    video.src = stream;
+  }
+  video.play();
+}
+
+function errorCallback(error) {
+  console.error('An error occurred: [CODE ' + error.code + ']', error);
+  return;
+}
+
 function init() {
   navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
+
   if (navigator.getUserMedia) {
-    // NOTE: at time of writing March 26, 2012, audio isn't working in Chrome
-    // navigator.getUserMedia('audio,video', successCallback, errorCallback);
-    // Below is the latest syntax. Using the old syntax for the time being for backwards compatibility.
-    navigator.getUserMedia({video: true, audio: true }, successCallback, errorCallback);
-    function successCallback(stream) {
-      window.stream = stream;
-      if ('mozSrcObject' in video)
-        video.mozSrcObject = stream;
-      } else if (window.webkitURL) {
-        video.src = window.webkitURL.createObjectURL(stream);
-        // document.querySelector('audio').src = window.webkitURL.createObjectURL(stream);
-      } else {
-        video.src = stream;
-      }
-    }
-    function errorCallback(error) {
-      console.error('An error occurred: [CODE ' + error.code + ']');
-      return;
-    }
+    navigator.getUserMedia({video: true }, successCallback, errorCallback);
   }
 }