关于全数字式扬声器系统的讨论  

Discussion of All-digital Loudspeaker System

作　　者：马登永[1,2] 蔡野锋[2] 沐永生[2] 杨军[2] 周建明[1] 柴国强[1] 

机构地区：[1]苏州上声电子有限公司,江苏苏州215133 [2]中国科学院声学研究所通信声学实验室,北京100190

出　　处：《电声技术》2011年第1期22-27,31,共7页Audio Engineering

摘　　要：随着超大规模集成电路制造技术的迅速发展,扬声器系统的设计与制造也逐渐向低功耗、数字化、集成化的方向发展,从而推进了全数字式扬声器系统的理论和实验研究。介绍了全数字扬声器系统的实现原理、基本结构和研究现状,重点对系统的编码、开关控制和数字换能器部分的实现方式进行了分类与比较,并对其实现原理进行了解释说明。Companied with the rapid development of very large scale integrated circuits fabrication techno- logy, the design and manufacture of loudspeaker systems also is proceeding towards the directions of the low power-loss, digitization and integration. Then, the development trend propels the research on theory and experiment of all-digital loudspeaker system. In this paper, the realization principle, basic structure and current status of the research about all-digital loudspeaker system are introduced. The implementation methods of the encoding module, on/off controlling module and digital transducer are classified and compared, then the realization principle of these methods is illustrated in detail.

关 键 词：全数字式扬声器 位组 位和 数字换能器 

分 类 号：TN643[电子电信—电路与系统]