Title :
A tutorial on MPEG/audio compression
Author_Institution :
Motorola Inc., Schaumburg, IL, USA
Abstract :
This tutorial covers the theory behind MPEG/audio compression. While lossy, the algorithm can often provide "transparent", perceptually lossless compression, even with factors of 6-to-1 or more. It exploits the perceptual properties of the human auditory system. The article also covers the basics of psychoacoustic modeling and the methods the algorithm uses to compress audio data with the least perceptible degradation.<>
Keywords :
ISO standards; audio coding; data compression; hearing; human factors; speech intelligibility; MPEG/audio compression; Moving Picture Experts Group; human auditory system perceptual properties; least perceptible degradation; lossy algorithm; perceptually lossless compression; psychoacoustic modeling; transparent compression; Audio compression; Bit rate; Decoding; Humans; IEC standards; ISO standards; MPEG standards; Signal processing algorithms; Transform coding; Tutorials;
Journal_Title :
MultiMedia, IEEE
