电声技术概述

Overview of Electroacoustic Technology

电声技术作为一门新兴的交叉性、应用型学科,融合了电学、声学和声电转换原理等相关学科成果,着重解决声波的发生、接收、变换、处理、加工、记录、重放及传播等问题,与日常的生活息息相关,有着十分重要的地位。先介绍电声技术,由理论扩展到实践,阐明了电声技术的概念,介绍了声波相关基础知识,进而对应用电声技术的电声器件进行研究,选择常用的扬声器与传声器为代表,说明电声技术的实际应用原理与重要性能参数,并联系电声技术的发展前沿,介绍电声技术的系统设计——立体声技术,该领域也是电声技术新近发展的研究热点,使电声技术重新焕发迷人魅力。

As a rising interdisciplinary and practical subject,electroacoustic technology which integrates related electronic technology and applied acoustics research achievements is playing increasingly roles in our daily life because it deals with many processes of the sound waves including sound wave generation,receiving,transformation,recording,playback and other problems.The article firstly expounds the concept of electroacoustic technology as well as the basic knowledge of sound wave.And then,it focuses on the study of electroacoustic device which is the practical application of acoustic technology,choosing commonly used speaker and microphone as example.It mainly introduces working principle and performance parameters of the devices.Finally,by relating to the cutting-edge technology of electroacoustic,it illustrates system design that is called stereo technology,which is also a newresearch highlight and charming field of acoustic technology.