Archive for July, 2009

Audio Coding Format – AAC

Advanced Audio Coding or AAC, a standardized lossy compression and encoding format for digital audio, was designed to resolve the major performance flaws found in the MP3 format. Its audio encoding provides more efficient compression than the older formats but does not reduce its quality and can rival that of an uncompressed audio CD. AAC makes use of two main coding strategies to significantly lessen the amount of data needed to stand for high-quality digital audio: discarding the signal components that are perceived to be immaterial; and eliminating the unessential in the coded audio, at the same time adding internal error correction codes.

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