#1
Iv been looking for a way to improve sound quality of my music. I noticed on my itunes, that when you import music off a cd, you can change that encoder and bit rate and sample rate. i have usually been importing using the default setting: AAC Encoder, Bit Rate 128kbs, Sample Rate 44.100kHz. I notice you can increase the Bit Rate all the way to 320kbs and the Sample Rate to 48.000kHz, but i didnt notice to much of a difference in sound quality when i compared them... is there suppost to be a noticable difference? It would be a real hassle to re-import all my music at a higher bit rate. also what is the best encoder to use? file size doesnt really matter to me. i just want great sounding audio! Thank You in advance!!!
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#2
ummm as far as I can tell CD quality is 128 kbs. Itunes is bassically giving you the option to import higher quality music. Only problem is that there isn't really any to import. You can buy a Cd mixed in 5.1 surrond sound and it may have something to do with that. Basically I-tunes set themselves up for the future, so if anything you buy is encoded more that 128 kbs you can import it. Just smart thinking. You however don't need to worry about it. Just go drop about $150 for some awsome Bose headphones and that'll make your audio sound so much better. Besides, you really can't tell the difference between 128kbs and even 96 kbs with standard Ipod headphones. They are not sensitive enough. Peace!
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#3
i think 128kbps is good enough for personal listening

but say, if you're gonna play those songs at a party, yea.
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#4
depends when I'm listening to really heavy distorted stuff there is a lot of crackling stuff at 128 MP3 that is gone at 320kbps mp3. Also notice a huge difference when listening in Shure E2C Headphones simply because they are super-responsive.
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#5
Thanks! No im just playing it through my car stereo and i was just woundering why it has this option and if it makes a noticable difference... i notice when i download music people usually appeal to the high bitrate files instead of the normal 128kbs ones. i dont see much of a difference between 128kbs-320kbs through my computer setup.
Gibson Les Paul Standard
Fender American Stratocaster
Taylor 210 Dreadnought Acoustic
Bogner Alchemist 40w 212 Tube combo
Vox V847A Wah Pedal
MXR M-134 Stereo Chorus
Electro-Harmonix Big Muff Pi USA
Boss DS-1 Distortion Pedal
Korg Pitch Black
#6
If you want the absolute best audio you can get, then WAV is probably the only option.
In terms of MP3, I like to use 192's, just because I think they're that bit better than the usual 128's (I also reckon that I can hear a sound difference between 192's and 128's.)

But I suppose if you have the money, definately get the better speakers/headphones.
#7
changing the sample rate to 44.1kHz should have no difference if importing from CD. CDs by definition of the standard are 44.1kHz, and trying to rip any more out of that would be useless...basically making something out of nothing. and the CD standard comes from the fact that the human ear can at best hear 20kHz, and even then that's only when we're younger children. in order to digitally sample it the highest possible frequency adequately, you need to have twice that (the Nyquist frequency). the extra 4.1kHz was added to be safe. so again, no real benefit...and in fact, the quality may degrade as the encoder has to extrapolate nonexistent data. (oooh electrical engineering classes, you're so useful )

as far as bitrate, the difference between 128kbps AAC to 320kbps AAC is far less noticeable than the difference between 128kbps MP3 and 320kbps MP3. i can even tell a difference between 128 and 160 MP3, but very little on AAC. if you had extremely high quality hi-fi equipment at home then it might matter, but even then it might not.
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