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What is AAC

What Is AAC


AAC, stands for Advance Audio Coding that uses lossy compression to encode digital audio. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.


Since AAC is designed to be the successor of the MP3, AAC and MP3 share a lot in common. Both of them take advantage of deficiencies in human hearing to discard digital bits corresponding to sounds unlikely to be heard. Both of them are lossy algorithm, meaning the original digital audio cannot be recreated from the compressed bits alone.


However, AAC does a much better job in encoding audio with streams of complex pulses and square waves than MP3 does. AAC generally achieves better sound quality than MP3 at similar bit rates.


AAC is also the default or standard audio format for: Apple's iPhone, iPod, iPad, Nintendo DSi, iTunes, DivX Plus Web Player, Sony's PlayStation 3 and is supported by Sony's PlayStation Portable, latest generation of Sony Walkman, phones from Sony Ericsson, the latest S40 and S60 models from Nokia, Android based phones, Nintendo's Wii (with the Photo Channel 1.1 update installed for Wii consoles purchased before late 2007), and the MPEG-4 video standard.



AAC Related Articles


How to play AAC?
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AAC Related Software


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