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digital audio & animoto
AAC: Advanced Audio Coding, Itunes default.
MP3: MP is short for MPEG (Moving Picture Experts Group) &; 3 refers to "audio layer 3".
AIFF: Audio Interchanged File Format, an uncompressed audio file.
Audio File Size Comparisons:
AAC:.......................................6.4 MB
MP3 (greater):..........................4.7 MB
MP3 (good):.............................3.2 MB
AIFF:.......................................34.5 MB
At first, when comparing the quality of the files, I didn't notice much of a difference at all. Only when I compared the uncompressed AIFF file and the lowest quality MP3 side-by-side did I notice that a lot of subtleties are lost in the MP3, but it doesn't sound bad by any means.
When putting a lot of music on your computer, I would use a high quality MP3 or AAC file, because they're all relatively small files without sacrificing quality.
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