Title :
The MPEG Surround Audio Coding Standard [Standards in a Nutshell]
Author :
Hilpert, Johannes ; Disch, Sascha
Author_Institution :
Dept. of Audio, Fraunhofer Inst. for Integrated Circuits, Erlangen
Abstract :
This article provides a compact overview of the history, technology, and performance of MPEG Surround. The technology of MPEG Surround is based on the spatial audio coding (SAC) principle: In the encoder, a mono- or stereophonic down- mix is generated from the multichannel input signal, and additional parametric side information is extracted to guide the subsequent up-mix procedure in the decoder.With Moving Pictures Expert Group (MPEG) Surround, a data-rate efficient coding scheme for high-quality multichannel sound using novel parametric coding techniques has been standardized.
Keywords :
audio coding; channel coding; code standards; MPEG surround audio coding standard; decoder; moving pictures expert group; multichannel coding; up-mix procedure; Audio coding; Bit rate; DVD; Decoding; Digital audio broadcasting; Digital video broadcasting; MPEG standards; Material storage; Signal processing; Standardization;
Journal_Title :
Signal Processing Magazine, IEEE
DOI :
10.1109/MSP.2008.930433
