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Originally Posted by ScottieB /img/forum/go_quote.gif
To this point, I've found I notice these things even more when I step back down... once I got used to lossless, I could tell when I heard mp3s - something was just missing. The step down always feels larger than the step up to me - goes for visuals too (like 8-bit to 16-bit graphics back in the day, or dvd to blu-ray).
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My ears definitely don't seem to match up to those of the average head-fi member.
Around half of the music collection I listen to on my main setup (in my sig) are the new 256 kbit AAC files from iTunes - converted to 320 kbit MP3 (not sure what's lost during that process, but I figured I would rather set the bitrate too high) to make them playable on my PS3.
The other half consists of CDs, occasionally played directly (the PS3 outputting at 88.2 KHz over optical to my DacMagic), but more often as 320 kbit MP3s ripped directly with the PS3 (no lossless support, yet, unfortunately), as disc juggling just feels like such an annoying and outdated concept to me here in 2009. Not to mention that it makes it rather difficult to make multi-artist playlists.
Aside from genererally never giving the least bit thought to the converted iTunes files sounding "bad", I do have a couple of those albums on CD as well (The Corrs Unplugged and Sarah McLachlan's Closer), and I've really been straining my ears to try to notice small differences - going as far as switching between brief 10-20 seconds samples of each format.
Occasionally I think I hear a miniscule difference in a certain tone here, or a an ever so slightly more dynamic representation there. But then I do the comparison again and it's gone - though I may (think I) notice something else instead.
I'm not trying to argue that some people can't genuinely hear the differences - somethings gotta go when you compress data after all - but with my hearing it distinctly looks like the only things I'm occasionally hearing are small figments of my own imagination
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Now that DVD to Blu-ray comparison you mentioned on the other hand - you would have to be virtually blind (or sitting a mile away from your TV) not to spot the huge difference between a good BD transfer and DVD
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I'm inclined to say that the audio differences between CD/lossless and 256/320 kbit MP3/other format are rather more subtle than the visual differences between BD vs. DVD.