Add missing semicolon in misc_sound

examples/misc_sound.html

@@ -171,7 +171,7 @@
 				var GeneratorControls = function() {
 					   this.frequency = oscillator.frequency.value;
 					   this.wavetype = oscillator.type;
-				}
+				};
       			var gui = new dat.GUI();
 				var soundControls = new SoundControls();
 				var generatorControls = new GeneratorControls();