【精品】毕业设计论文说明书.doc

毕业设计(论文)说明书 题 目： 基于单片机的数码录音与 播放系统设计 系 别： 机电工程系 专 业： 机械设计制造及其自动化 学生姓名： 威 华 学 号： 0853120132 指导教师： 彭 治 国 职 称： 讲 师 题目类型： 理论研究 实验研究 工程设计 工程技术研究 软件开发 2011年5月27 日 摘 要 怎样能把人类的语言丝毫不差地记录下来也是人们一直思考的问题。传统的磁带语音录放系统因其体积大、使用不便,在电子与信息处理的使用中受到许多限制。因此，需要设计一个智能录音装置来记录人类的语言。 本次设计了一个的体积小巧，数字化语音存储与回放系统智能录音装置。它可以把人们生活中很多美丽的语言声音记录下来，记录下人们生活中点点滴滴美好的回忆。本文详细介绍语音存储与回放系统的发展和基本结构,通过分析比较，最终选择最佳设计方案，并完成整个系统电路的设计，系统在分析可行性、可靠性的基础上，参照工程设计方法，确立了结构化设计的思路。该系统是一种基于AT8951单片机的系统，信号处理放大电路和显示电路组成的一个装置Abstract How can human language is no less well documented is that people have thought. Voice recording traditional tape systems because of their bulky, inconvenient to use in the electronics and information processing in use by many restrictions. Therefore, the need to design an intelligent recording device to record the human language. The design of the size of a small, digital audio storage and playback system, intelligent recording device. It can put our lives in many beautiful languages ??in the voice record to record bits and pieces of our lives wonderful memories. This paper describes the voice storage and playback system development and the basic structure, through analysis and comparison, and ultimately select the best design, and complete the entire system circuit design, system analysis of the feasibility, reliability, based on the reference to engineering design methods, Established a structured design ideas. The system is based on sound acquisition system AT89S51 microcontroller, signal processing and display circuit amplifier, a device used ISD4004 chip, digital signal as the voice memory device, the system features wide range of applications where a longer recording . Digital recording playback devices to solve the life of the poor condition of the