I will be addressing issues related to the following materials in my fourth paper. The paper will concern why the "loudness war" needs to come to an end. It is useless in modern context, does not help record sales, and can permanently damage or fatigue the human ear from extended exposure. Here is a great example of exactly how "hypercompression" is accomplished (ie by raising the average level of the track, thus minimizing the "crest factor", or the difference between the loudest parts and the softest) and what it does to the quality of the sound:

Loudness War Example

Next is an example of how the human ear hears different frequency ranges, which explains why "hypercompressed" tracks can fool the ear into thinking the track sounds better simply because the mid range frequencies are more audible in the track (the human ear hears mid and mid-high range frequencies more easily than very low or very high frequencies: