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http://dx.doi.org/10.7776/ASK.2009.28.7.589

MPEG-D USAC: Unified Speech and Audio Coding Technology  

Lee, Tae-Jin (한국전자통신연구원 방통융합미디어연구부)
Kang, Kyeong-Ok (한국전자통신연구원 방통융합미디어연구부)
Kim, Whan-Woo (충남대학교 전자전파정보통신공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.28, no.7, 2009 , pp. 589-598 More about this Journal
Abstract
As mobile devices become multi-functional, and converge into a single platform, there is a strong need for a codec that is able to provide consistent quality for speech and music content MPEG-D USAC standardization activities started at the 82nd MPEG meeting with a CfP and approved WD3 at the 88th MPEG meeting. MPEG-D USAC is converged technology of AMR-WB+ and HE-AAC V2. Specifically, USAC utilizes three core codecs (AAC ACELP and TCX) for low frequency regions, SBR for high frequency regions and the MPEG Surround tool for stereo information. USAC can provide consistent sound quality for both speech and music content and can be applied to various applications such as multi-media download to mobile device Digital radio Mobile TV and audio books.
Keywords
MPEG-D USAC; HE-AAC V2; AMR-WB+;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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