"基于AT89C51单片机的智能语音播报器设计详解"

本文主要介绍了基于AT89C51单片机的语音播报器的设计方案。随着现代社会人们工作日程的繁忙和生活节奏的加快，合理的安排时间和遵守时间成为每个人的愿望。因此，智能记事器采用语音播报的方式，成为人们生活中的有力助手。本文首先介绍了语音播报在现代社会的广泛应用，并指出了采用AT89C51单片机作为系统控制核心的优势。详细介绍了ISD公司生产的ISD2560语音芯片的优点与使用方法，并给出了AT89C51与ISD2560构成的语音系统的硬件原图和软件设计方法。采用ISD2560实现了语音的存储和播放，使得语音音质自然真实，不需要A/D和D/A转换，并且具有高集成度和能实现复杂的信息处理功能。实现了按下开始键启动录音，松开开始键结束录音并循环播放所录音的基本功能。录放系统具有电路简明、应用方便、单片录放、不怕掉电、音色纯正、性价比高等特性。关键词：电气信息、单片机、语音播报器。 Overall, the paper introduces the design of a speech playback device based on the AT89C51 single-chip microcomputer. It explores the wide application of speech playback in modern society and the advantages of using the AT89C51 as the system control core. The paper details the features and usage of the ISD2560 speech chip produced by ISD Corporation and presents the hardware and software design methods for constructing a speech system using the AT89C51 and ISD2560. The ISD2560 chip is employed to store and play back speech, ensuring natural and realistic sound quality without the need for A/D and D/A conversion. It offers high integration and the ability to perform complex information processing functions. The system allows for basic functions such as starting recording by pressing a key, stopping recording by releasing the key, and playing back the recorded speech in a loop. The recording and playback system is characterized by a simple circuit, easy application, single-chip recording and playback, immunity to power loss, pure sound quality, and high cost performance. Keywords: electrical information, single-chip microcomputer, speech playback device.