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家庭影院是随着电子技术和视听技术的进步而发展起来的一种在家居环境下欣赏到影院效果的视听设备。根据2000年颁布的行业标准,《家庭影院用环绕声放大器通用规范》的定义,家庭影院(产品)是指“由环绕声放大器(或环绕声解码器+多通道声频功率放大器)、多个(4个以上)扬声器系统、大屏幕电视(或投影电视)及高质量A/V节目源(LD、DVD、DTV、数字电缆电视、数字卫星广播等)构成的具有环绕声影院视听效果的视听系统”。这样一套系统经过正确连接,人们就可以坐在家里欣赏过去只有在环绕立体声影院里才能享受到的视听节目了。
Home theater is a kind of audio-visual equipment which is developed in the home environment and cinema effect with the progress of electronic technology and audio-visual technology. According to the industry standard promulgated in 2000, “Home Theater Universal Specification for Surround Amplifiers” defines home theater as “a surround sound amplifier (or surround-sound decoder + multichannel audio power amplifier), a plurality of ( 4 or more) Audiovisual system with surround sound auditorium consisting of loudspeaker system, large screen TV (or projection TV) and high quality A / V program source (LD, DVD, DTV, digital cable TV, digital satellite broadcasting, etc.) ”. With such a system properly connected, people can sit at home enjoying audiovisual programs that were only available in surround sound cinemas.