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The Design of Terrestrial DMB Media Processor for Multi-Channel Audio Services  

Kang Kyeongok (한국전자통신연구원 방송미디어연구그룹)
Hong Jaegeun (경북대학교 전자전기공학부)
Seo Jeongil (한국전자통신연구원 방송미디어연구그룹)
Publication Information
The Journal of the Acoustical Society of Korea / v.24, no.4, 2005 , pp. 186-193 More about this Journal
Abstract
The Terrestrial Digital Multimedia Broadcasting (T-DMB) system supplies high quality audio comparable with VCD in 7 inch display and high quality audio comparable CD at the mobile reception environment T-DMB will launch commercial service at the middle of 2005. However the bandwidth for audio data and the number of channels are restricted to 128 kbps and 2 respectively in the current T-DMB standard because of the limitation of available bandwidth for multimedia data. This Paper Proposes a novel media processor structure for providing multi-channel audio contents oyer T-DMB system allowing backward compatibility with the legacy T-DMB receiver. Furthermore. we also Propose an adaptive receiver structure to supply optimal audio contents on various speaker configuration in T-DMB receiver. To provide multi-channel audio contents allowing backward comaptilbity with the legacy T-DMB receiver, the additional data for multi-channel audio are defined as a dependent stream of main audio stream. The OD strucure for control an additional multi-channel audio elementary stream is proposed without changing the BIFS of the legacy T-DMB system.
Keywords
Terrestrial Digital Multimedia Broadcasting (T-DMB); Multi-channel audio; Media processor Media Player; BIFS; OD;
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