This is a very important topic where Ian Shepherd speaks about Bob katz who is a campaigner against the loudness war. He took a public stand against the loudness war. Itunes audio levels are fully regulated using Sound Check algorithm. Bob says “sound check” is an intelligent volume control in the “Itunes Radio” which adjusts the volume on its own. Bob Katz posted on his website “Digital Domain” that the loudness war has been won and the last battle will be over by middle of 2014.