The MP3 format was set to death by its creators

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The new “de facto standard for music download and videos on mobile phones” is expected to be AAC – or “Advanced Audio Coding” – which is described “more efficient than MP3” offering  a lot more functionality.This is is a proprietary audio coding standard for lossy digital audio compression. It has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.It was first introduced in 1997.

We may still use MP3s but must understand how things changed. Not at least, the engineers who developed the MP3 were working with incomplete information about how our brains process sonic information, and so the MP3 itself was working on false assumptions about how holistically we hear. AAC supports inclusion of 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 16 low frequency effects. Now AAC is the default or standard audio format for YouTube,, iPhone, iPod, iPad,  Nintendo DSi, Nintendo 3DS, iTunes, DivX Plus Web Player, PlayStation 3 and various Nokia Series 40 phones It demonstrated greater sound quality. For the instant certain AAC encoders are not as good as the best MP3 encoder as they do not take optimal advantage of the additional encoding tools that AAC makes available.

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