On May 13, 2005, at 9:54, Kirk McElhearn wrote: > 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. > > I know the brain can trick you, I am finishing Mind Hacks right now, but I don't agree that test is meaningful, because the quality of recordings is not uniform. For me the blind test would be: choose _one_ song with fine details, rip it using several bit rates, and listen to them in shuffle mode. After listening to a handful of tracks to let your hearing adjusts to that particular recording, then try to assign a bit rate to each copy in a session. You are allowed to review tracks. If you hear the difference in shades and you can successfully _order_ the copies by quality, then in my opinion that's enough to be allowed to assert you really perceive diffences. -- fxn