following structure of other stuff

src/lime/_internal/backend/html5/HTML5AudioSource.hx

@@ -211,9 +211,10 @@ class HTML5AudioSource
 
 	public function setPitch(value:Float):Float
 	{
-
+		#if lime_howlerjs
 		parent.buffer.__srcHowl.rate(value);
-
+		#end
+		
 		return getPitch();
 	}
 	

src/lime/media/AudioSource.hx

@@ -111,12 +111,12 @@ class AudioSource
 		return __backend.setLoops(value);
 	}
 
-	private function get_pitch():Float
+	@:noCompletion private function get_pitch():Float
 	{
 		return __backend.getPitch();
 	}
 
-	private function set_pitch(value:Float):Float
+	@:noCompletion private function set_pitch(value:Float):Float
 	{
 		return __backend.setPitch(value);
 	}