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AAC, MPEG-4 AAC Audio File (.aac)

 

The .aac file format

MPEG and MPG are very similar in design and function. MPEG is a more recent format which branches off into standards MPEG-1 all the way through to MPEG-21. They feature a lossy compression that allows for ease of downloading and uploading using smaller file sizes and at the same time retaining high quality. These file storage for audio and visual elements enable the two pieces to remain in sync. MPEG-1 files are maintained for the audio elements while MPEG-2 are for the video/audio elements namely for cable and satellite broadcasts. The MPEG system is a precursor to MP3 file. MPEG-1 and MPEG-2 files are compatible with Mac and Windows due to various programs supporting the files.

 

.aac technical details

.aac is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.

 

Additional information about AAC file format

File extension .AAC
File category AUDIO
Useful links http://ipod.about.com/od/filetypes/fl/How-MP3-and-AAC-Are-Different-and-Other-iPhone-File-Types.htm
File conversion Convert a file to AAC
Developer IOS/IEC
Associated programs Windows Media Player, Windows Movie Maker, VLC Video Player, Apple iTunes, Quicktime Player, Adobe Flash, Roxio, Cyberlink video editing software, Xilisoft Video Converter