小型音响的设计与制作
摘要
随着电子技术，特别是随大规模集成电路的产生而出现的微型计算机技术的飞速发展，人类生活发生了根本性的改变。如果说微型计算机的出现使现代科学研究得到了质的飞跃，那么可以毫不夸张地说，单片机技术的出现则是给现代工业领域带来了一次新的技术革命。
伴随着社会的进步，媒体电脑技术突飞猛进，慢慢改变着人们的工作、生活、学习和交流方式，它的应用给社会带来了巨大的进步，很多人认为音箱只要能发声就行，但实际上不管是家庭影院还是个人电脑，购买时一般都会配上音箱，假如没有了音箱，多媒体只能是一句空话。
在人们的生活娱乐中，音响的存在必不可少。例如：电视机、收音机、家用电脑等许多领域，都需要用到音响来给人们带来听觉的效果。专业的音响系统主要由听觉系统（人的耳朵）、硬件系统（器材）、软件系统（信号源）及听音环境组成。音响系统主要技术指标有：频率特性、信噪比、动态范围、瞬态响应、立体声分离度、立体声平衡度。
这些都是组成音响的主要成分。
本次研究的课题，小型音响的制作，比起专业的来讲，简单得多，但功能并不比专业的逊色。该设计制作使用扩音机电路电压放大器和功率放大器，还介绍了其性能指标和测试方法、故障检修等。
Abstract
Minitype computer art with electron technology, especially, following the large-scale integrated circuit creation but appearing's ultimacy happened in development , human being life at full speed changing. If the microcomputer appearing has made modern study of science get a qualitative leap, can exaggerate a field not in the least saying monolithic machine technology appearing is to give modern industry field to have brought about a new technological revolution then so.
Advance by leaps and bounds being accompanying the advancement of society , the medium computer technology, the job being changing people slowly , the way living , studying and communicating with, its application has brought about gigantic progress for society , many person thinks that the loudspeaker box goes so long as energy sound production accommodates oneself to , not caring in fact is that the family cinema is still PC but , the general city has been qualified for a loudspeaker box time purchase, suppose not having had a loudspeaker box , multi-media can only be a meaningless term.
In people's life entertainment, the audio existence is essential. For instance: Many field such as computer etc., all needs the TV set , radio set , family expenses to use the effect coming to audio to bring sense of hearing to sense of hearing
people. The special field audio system is composed of sense of hearing system (people's ear) , hardware system (equipment and material) , software system (signal source) and can of tone environments mainly. The audio system major technological index has: Frequency characteristic property , signal-to-noise ratio , dynamic range , transient respond to , stereophony separation degree , stereophony balance spend. These all are to be composed of the audio staple. This the problem studying time , minitype audio fabrication, coming to talk comparing with special field is much , simple , the function is not compared to but the special field being inferior. Have owed the circuit voltage designing the amplifier making usage the amplifier and the power amplifier , have introduced whose function index and testing method , trouble shooting etc.
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