![]() The iPod accepts files with the MP4 extension, the M4A extension, the M4P extension (a Protected AAC file), and the M4B extension for audiobook files (which can be either protected or unprotected). What MPEG 4 extensions does the Apple iPod Accept? As far as the internal structure of the file, nothing is different. ![]() Apple came up with extension to distiguish between files with Video and Audio (the MP4 extension) and files with Audio only (the M4A extension). What is the difference between *.MP4 and *.M4A? īesides the extension, absolutely nothing. It usually offers (depending on the codec) equivalent quality to MP3 at a lower bitrate. To improve upon and replace MP3 as the defacto Audio Encoding standard. Overview AAC FAQ Great, so you've given me all the technical stuff, but what is AAC really? ĪAC is the culmination of the current state of the art audio encoding techniques. 1.8 What hardware players can play back AAC music?.1.7 What software players can play back AAC music?.1.6 Do AAC encoded files play back gaplessly?. ![]() 1.4 What is the difference between LC (Low Complexity) and HE (High Efficiency)?.1.3 What MPEG 4 extensions does the Apple iPod Accept?.1.2 What is the difference between *.MP4 and *.M4A?.1.1 Great, so you've given me all the technical stuff, but what is AAC really?.
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