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全世界的消费者都需要数字电视较高质量的声音。对家庭娱乐系统的市场调查显示,消费者喜欢5.1声道环绕声。自1997年推出DVD-Video以来,已销售了5000多万套采用这一技术的DVD-Video播放机。电视业务预计也将传送5.1数字环绕声。 为此,已经采取了各种措施,早期的开发是由美国推动的,在美国许多年来DOlby Digital就是ATSC HDTV系统的音频标准。1997年 7月,根据广播机构的要求和在消费者要求通过其电视机提供5.1声音的推动下,数字视频广播（DVB）顶目将音频技术的该标准包含进DVB的数字电视标准中。
Consumers all over the world need the higher quality of digital television sound. Market research on home entertainment systems shows that consumers love 5.1-channel surround sound. Since the launch of DVD-Video in 1997, more than 50 million DVD-Video players have been sold using this technology. The television business is also expected to deliver 5.1 digital surround sound. To this end, various measures have been taken and the early development was promoted by the United States. In the United States for many years DOlby Digital was the audio standard for the ATSC HDTV system. In July 1997, Digital Video Broadcasting (DVB) championed this standard for audio technology into the DVB digital television standard, driven by the needs of broadcasters and by the consumer’s request for 5.1 sound through their television sets.