毕业设计（论文）-基于单片机的智能录音机设计.doc

摘要
本文介绍了由Flash单片机STC89C52及数码语音芯片ISD2560组成的电脑语音系统设计出了系统的硬件电路,给出了录、放音实用的源程序。
目前基于单片机的语音系统的应用越来越广泛,如电脑语音钟、语音型数字万用表、手机话费查询系统、排队机、监控系统语音报警以及公共汽车报站器等等。本文用Flash单片机STC89C52和录放时间达60s的数码语音芯片ISD2560设计了一套语音录放系统,实现了语音的分段录取、组合回放,通过软件的修改还可以实现整段录取,循环播放,而且不必使用专门的ISD语音开发设备。
此套系统应用的ISD2560是一种永久记忆型语音录放电路器件,它具有音质自然、使用方便、单片存放、反复录音、低功耗、抗断电等特点,广泛应用于许多领域。利用单片机来实现语音的录放具有很大的研究、开发价值。
关键词:单片机STC89C52; ISD2560 ; 录放

Abstract
This paper introduces the STC89C52 and single chip puter by Flash digital voice chip of puter voice system design of the system out hardware circuit, given the record, let the sound practical source program.
At present the ic system based on single chip used more widely, such puter voice clock, speech type digital multimeter, mobile phone calls inquires PaiDuiJi system,, monitoring system voice alarm and bus stops device and so on. In this paper, using Flash single-chip puter STC89C52 and recording time of 60 s digital voice chip design ISD2560 a voice recording system, realize the speech, bination of piecewise admitted replay, through the software revision also can realize the whole period of admission, circulation play, and you don't need to use special ISD pronunciation development equipment.
This set of system of the application ISD2560 is a permanent memory type voice recording ponents, it has a sound quality natural, convenient, single piece of storage, repeated recording, low power consumption, fight without electricity and other characteristics, widely used in many fields. Using single puter to realize voice recording of of great research, development value.
Key words: STC89C52 single chip;ISD2560; RP

目录
摘要 1
Abstract 2
目录 3
绪论 4
第一章硬件设计 5
设计总框图介绍 5
STC89C52单片机简介 5
ISD2560语音芯片简介 9
电源电路 17
单片机最小系统 17
复位电路 18
晶振电路 18
19
咪头电路 19
AGC增益电路 20
第二章软件设计 20
软件设计原理及设计所用工具 20
21
21
系统流程图 22
结论 23
总结与体会 24
参考文献 25
附录1 程序代码 26
附录2 设计原理图总图 30
附录3 实物照片 31
致谢 32