I just had an idea for an OSX app and I doubt it's already out there. I've never done OSX and don't see any other reason to do it. Here's the OSX app idea: A min/max volume control. It would monitor the volume and adjust the master volume based on a min and max range the user would set. Example usage: when you listen to a audio stream (radio or YouTube) the output is dependent on the persons voice or recording level. When an ad comes on, it's much louder than the regular program. It shouldn't be too hard, something like a UV meter gauges sound, you'd just turn it up if it's below the min and down if it's above the max. Even if it just dropped the volume when it went too high, then returned to normal settings after the sound spike was over. Does this sound like a tough project for someone that knows iOS but never did OSX? Or, better yet, does anyone know if something like this is already out there?