Added in-world test tone JS file

examples/inWorldTestTone.js

@@ -0,0 +1,38 @@
+//
+//  inWorldTestTone.js
+//  
+//
+//  Created by Philip Rosedale on 5/29/14.
+//  Copyright 2014 High Fidelity, Inc.
+//
+//  This example script plays a test tone that is useful for debugging audio dropout.  220Hz test tone played at the domain origin.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+var sound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/220Sine.wav");
+
+var soundPlaying = false;
+
+function update(deltaTime) {
+    if (!Audio.isInjectorPlaying(soundPlaying)) {
+        var options = new AudioInjectionOptions();
+        options.position = { x:0, y:0, z:0 };
+        options.volume = 1.0;
+        options.loop = true;
+        soundPlaying = Audio.playSound(sound, options);
+        print("Started sound loop");
+    } 
+}
+
+function scriptEnding() {
+    if (Audio.isInjectorPlaying(soundPlaying)) {
+        Audio.stopInjector(soundPlaying);
+        print("Stopped sound loop");
+    }
+}
+
+Script.update.connect(update);
+Script.scriptEnding.connect(scriptEnding);
+