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Backward-compatible terrestrial digital multimedia broadcasting system for multichannel audio service

机译:用于多通道音频服务的向后兼容的地面数字多媒体广播系统

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摘要

In this paper, a Terrestrial Digital Multimedia Broadcasting (T-DMB) system for a multichannel audio service is proposed. The multichannel audio information on the T-DMB system proposed in this paper consists of a stereo audio signal coded by BSAC and additional multichannel side information coded by MPEG surround. These two types of information are conveyed through two elementary streams (ES), respectively. To control two elementary streams, two object descriptor (OD) streams are exploited, each of which transmits OD commands, including ObjectDescriptorUpdate and ES_DescriptorUpdate, related to a stereo audio signal and additional multichannel side information, respectively. With this method, the proposed system can convey multichannel side information while guaranteeing backward compatibility for the legacy T-DMB terminals, and moreover makes it possible to provide various advanced service scenarios with outstanding extensibility.
机译:本文提出了一种用于多通道音频服务的地面数字多媒体广播(T-DMB)系统。本文提出的有关T-DMB系统的多声道音频信息包括由BSAC编码的立体声音频信号和由MPEG环绕声编码的其他多声道辅助信息。这两种类型的信息分别通过两个基本流(ES)进行传送。为了控制两个基本流,利用了两个对象描述符(OD)流,每个对象描述符流都发送OD命令,包括与立体声音频信号和其他多声道辅助信息有关的ObjectDescriptorUpdate和ES_DescriptorUpdate。通过这种方法,所提出的系统可以在保证对传统T-DMB终端的向后兼容性的同时,传送多信道辅助信息,并且使得可以提供具有出色扩展性的各种高级服务场景。

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