I saw that W5000 sells for
less than the W2000 on amazon.com.
Quote:
Originally Posted by ricmat 
(however, let me just ask you a question... have you A/B LAME 256Kbps vs losless? for me, even with a top notch gear it is very very very hard to distinguish! sometimes I couldnt)
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It all depends on the music, and also the gear you use. MP3 is essentially a Fourier transform of the sound wave. That is, instead of representing the pressure in the sound wave at successive points in time, it breaks that sound apart into frequencies. If the music had been recorded that way, you should in principle get
better sound per byte that way. Unfortunately, that is not
precisely what MP3 is. It's coded over from the recorded sound wave function (which means it can't get
better than that), AND (very importantly) many frequencies have been removed or lumped together for the sake of compression.
So back to the music:
I like old German electronica, like Tangerine Dream. Their music is to a large extent synthesized from just a few sine waves or simple waveforms that are reducible to a superposition of not overly many sine waves. MP3 handles that kind of music extremely well, since even the lowest rate MP3 can handle sine waves to perfection - lossless! I often can't tell 128kbit MP3 and FLAC apart for such music.
At the other end of the scale is music with lots of complexity in the higher frequencies. Cymbals are particularly revealing and sound "jingly" with MP3, and I frankly think even CDs lack for this kind of music; the Shannon sampling theorem does as far as I know only apply to pure sine waves.
But whether I can tell depends on the particular piece of music. But don't listen with just your "ears". Listen with your space sense. The highest frequencies are not really audible per se, in the sense of being felt like sound, but are more present in the form of a feeling of "space". That's part of why Dolby NR on the old cassette tapes felt like you were being choked by a pillow. Not because it didn't do its job, but because it did it too well: Some of that white noise it filtered out translated to a feeling of that space.
A test:
Can you hear the difference? Bitrate test! - abi>>forums (I failed on one of them; the reason might simply be that I disliked the music, though. Or it might be that the white noise on Ghosts helped me identify the least compressed version.)
But I keep
all my music in FLAC, ragardless. It would be a shame if I woke up one day and recognized the difference --either due to better equipment, because of getting to know that particular music better, or because of the "listening fatigue" you get from music of lesser reproduced quality even if you don't hear it directly-- and what is the cost of making sure? 20 cents! (OK, so I know people with 2TB "collections" of music on MP3. But really! It doesn't matter what format that music is in, because 2TB is enough for several years of non-stop listening without repeat.
Good music is music you play over and over again to the exclusion of all other music for days on end. Just say no to MP3: It leads you into useless collecting habits and leads you away from good music.)