MP3 v. AAC- an IPOD question
I have almost 20 GB of music on my itunes/ipod that got there the old fashioned way-- I imported from CD's that I've purchased over the years. It took me a long time to get them all in there in MP3 format.
I'm trying to decide if it would be worth my time to RE-IMPORT the music in the newer AAC format, or just stick with MP3.
How much memory would be saved (i.e. freed up) if roughly 20gb of MP3 music were converted to AAC?
I'm trying to decide if it would be worth my time to RE-IMPORT the music in the newer AAC format, or just stick with MP3.
How much memory would be saved (i.e. freed up) if roughly 20gb of MP3 music were converted to AAC?
Comments
But if you've already got them at a lower bitrate (like 128 ), you won't see any space savings unless you go obscenely low but you will notice a quality boost.
Originally posted by AugustWest
I?It took me a long time to get them all in there in MP3 format.
I'm trying to decide if it would be worth my time to RE-IMPORT the music in the newer AAC format, or just stick with MP3.
How much memory would be saved (i.e. freed up) if roughly 20gb of MP3 music were converted to AAC?
many people say, at a sampling rate <160, aac sounds better?\
BUT:
don't re-encode your mp3s to aac! this is a very lossful method! if you want to improve sound quality by the same bitrate, you have to encode from your "masters"?- sound like a week full of music
Another common misconception about AAC, it IS an open standard, in some ways more so than .mp3, however it's not a very embedded standard, and since apple is pretty much the only company pushing it right now, it may SEEM closed or proprietary, but it is quite the opposite.
Originally posted by Aquatic
Do iPods support AAC Plus now? IIRC QT does now.
ACC HE (High Efficiency)? I don't think either is true. You may be getting confused with the mobile phone spec for mp4 which was added to Quicktime 6.3 (I think)..
128 with either aac or mp3 how many songs per MB and GB,
my wife just got her ibook yesterday and wants to rip all her cds, she only did one but at 128 mp3, so this is the time to make the choice
i will get her a 20g ipod for christmas (don't tell her)
if aac at 128 is as good as mp3 at 160 or 200 then aac is the way to go for quality vs space.
also are there any books that help with leaning these apps rather than use the help menu.
Originally posted by NOFEER
help with calculations
128 with either aac or mp3 how many songs per MB and GB,
my wife just got her ibook yesterday and wants to rip all her cds, she only did one but at 128 mp3, so this is the time to make the choice
i will get her a 20g ipod for christmas (don't tell her)
if aac at 128 is as good as mp3 at 160 or 200 then aac is the way to go for quality vs space.
also are there any books that help with leaning these apps rather than use the help menu.
There sure are. I can't recommend any because, well, because I know my mac quite well, but here are some titles:
OS X Missing Manual by David Pogue, a rather acclaimed author on the Mac, and the original author who started the 'Missing Manual' series. Supposedly a good book on everything OS X.
iLife Bible on iTunes, iPhoto, iMovie & iDVD, if you want a narrower perspective. I wonder how much better this would be than Pogue's book.
Also, in my case: I have re-encoded many cds which I had previously ripped to 192 kbps MP3s into 128 kbps AAC, because I couldn't hear a difference (though I have very muched tried to).
A tip for all of you who might want to make sure: if you have Quicktime Pro, you can open an mp3 and an aac rip of the same track side by side (even an AIFF, or whatever QT can handle), and then you can choose, in the menu 'Movies' the option 'Play all movies', which will start and play all 'movies' simultaneously, but only let you hear the sound of the frontmost one. By clicking the various windows, you will hear how all the clips sound. If you're really, like I did, somewhat anal about encoding options, it's nice to try and name that format. You need to name the tracks the same, of course, so you can't see which one is which, and then try and name which one is which. I found that I could distinguish a 160 mp3 from a 128 aac and an aiff, because the mp3 sounded worse than the other two, between which I couldn't hear a difference.
This procedure is the same Jobs used in one of his presentations with that Vanessa Carlton video clip.
a german guy has made a test: 5 files, encoded with different codecs (mp3, aac, 64kB, vbr etc) and has re-encoded these demos as aiff, so you cannot "see" by size or header which is which?
http://homepage.mac.com/cmon_/.cv/cm...s.sit-link.sit
de-sit it and listen ........
/no, no german needed ;-) /
give it a try - which file has what compression?
btw: some dozends at our german mac forum have made the test - just ONE gave the correct answer! - he is planning to make the same test with classical music.
PS: i had absolutly NO clue!
that's a lot of music