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在《音响技术》2009年3月期和4月期中,笔者分别介绍了奥运会转播内部通话系统原理及其所采用的技术和部分设备。在这里有必要对其中的重要设备技术作进一步深入的分析,以利于对系统工作原理的理解。
During the period of March and April 2009 of “Acoustic Technology”, the author respectively introduced the principle of the intercom system of Olympic broadcast and the technology and some equipment adopted by it. Here is the need for further analysis of the important equipment technology in order to facilitate the understanding of the working principle of the system.