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http://dx.doi.org/10.5909/JEB.2011.16.5.714

Channel Expansion Technology in MPEG Audio  

Pang, Hee-Suk (Dept. of Electronics Engineering, Sejong University)
Publication Information
Journal of Broadcast Engineering / v.16, no.5, 2011 , pp. 714-721 More about this Journal
Abstract
MPEG audio uses the masking effect, high frequency component synthesis based on spectral band replication, and channel expansion based on parametric stereo for efficient compression of audio signals. In this paper, we present an overview of the state-of-the-art channel expansion technology in MPEG audio. We also present technical overviews and application examples to broadcasting services for HE-AAC v.2, MPEG Surround, spatial audio object coding (SAOC), and unified speech and audio coding (USAC) which are MPEG audio codecs based on the channel expansion technology.
Keywords
MPEG audio; channel expansion; HE-AAC v.2; MPEG Surround; SAOC; USAC;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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