On May 13, 2005, at 9:31 AM, Xavier Noria wrote: >> Did you do a blind listening test? If not, this has no value. If >> you know what you're listening to, then you'll hear things that >> may not be there. Also, one musician is not enough. >> > > It was not a blind listening test. As the bit rate increases the > overall perceived quality is good and in some passages and for some > type of music I can't distinguish 320 AAC from 192 AAC, but even at > 224 AAC for some music I can distinguish the difference in some > particular points, brilliance in the attack to cymbals, bass > profoundity, chorus neatness. Try it again in a blind test - rip a bunch of songs in different formats, set up a playlist in shuffle mode, then use the smart playlist to see what you're listening to afterwards. You may be surprised. Hearing is a cognitive action, and our brains influence what we hear, often just because of expectations. Kirk Read my blog: Kirkville -- http://www.mcelhearn.com Musings, Opinion and Miscellanea, on Macs, iPods and more Kirk McElhearn | Chemin de la Lauze | 05600 Guillestre | France