消费电子产品(整机)对扬声器的要求  

Technical Requirements From Consume Electronics Products——Some Observing and Thinking

作　　者：杨定军[1] 

机构地区：[1]天津电视技术研究所,天津300191

出　　处：《电声技术》2009年第10期24-26,31,共4页Audio Engineering

摘　　要：近年来,由于市场的变化和产品的演变,许多国产扬声器单元要配套于不同国家的产品,要符合多种标准和规格。特别是多媒体产品,便携式电子计算机和手机等整机的开发和流行促使扬声器单元向小及扁平的方向发展。技术要求上出现了一些困惑,比如纯音检听,扬声器的功率以及它们和整机中的功率放大器IC的功率匹配等过去很明确无误的问题上有了疑问乃至分歧。又如手机扬声器或便携式电子计算机用扬声器,其基本原理并没有和传统的电动式原理有什么原则性差别,但是在功率实验上产生了分歧。从某些观察出发,提出一些思考,试图正视有关问题,并希望有关人士重视,推动问题的讨论更具有科学性。Traditionally, technical requirements for loudspeakers used in electronics products which are for instance as TV sets and audio recorders are understood well by every one. Especially there are a lot of mature technical standards to guide so that it seems no doubts exist at all. But it becomes complicated these years in China because of market and R＆D reasons. A lot of loudspeakers need to supply to different countries. Therefore it is possible for Chinese manufacturers to meet different standards and technical requirements from different customers. Some basic questions, which are sine wave listening, power matching between loudspeaker and amplifier and so on become doubtful from tradition. Also there is a trend to demand loudspeaker with some technical specification beyond physics limitation. The suppliers often meet dilemma because of management reason. The positive and scientific discussion for related issues based on some observing and thinking is promoted.

关 键 词：扬声器 标准 纯音检听 功率匹配 功率实验 

分 类 号：TN643[电子电信—电路与系统]