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nannvshengshibie
本文通过对男性和女性声音的语音特征的研究，发现男女声的基音频率存在较大的差异，并设计了基于基音频率分析的男女声识别系统。男女声识别系统由以下三个模块电路构成：话筒放大器，低通滤波器，半波整流电路，单片机测量控制模块。话筒放大器采用NE5532P音前置芯片，对语音信号进行放大；八阶低通滤波器MAX293完成基音信号的提取；单片机STC12C5410AD实现频率测量和控制输出功能。经仿真与电路实测，男女声的识别效果良好。(In this paper, the voices of male and female voice characteristics of the findings of a study of the fundamental frequency of the sound of men and women there is a big difference, and the design of frequency analysis based on the pitch of the voice recognition system for men and women. Voice Recognition System for men and women from the circuit the following three modules: the microphone amplifier, low-pass filter, half-wave rectifier circuit, single-chip measurement control module. NE5532P sound using the microphone pre-amplifier chip amplification of voice signals eight MAX293-order low-pass filter to complete the extraction of pitch signal STC12C5410AD single-chip realization of the frequency of measurement and control output. By circuit simulation and measurement, the identification of male and female voices well.)
- 2009-04-12 16:23:04下载
- 积分：1
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wifiLocator
使用wifi指纹以及参考点信号强弱实现定位安卓手机精确定位(Fingerprint and the reference point using wifi signal strength to achieve precise positioning positioning Android phones)
- 2020-12-20 23:39:09下载
- 积分：1
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Matlab智能算法30个案例分析pdf
关于MATLAB实现智能算法的书籍，以案例为基础，容易理解(The realization of MATLAB intelligent algorithm books, based on a case, easy to understand)
- 2017-11-02 18:34:05下载
- 积分：1
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cdb2004c007l
PPt制作要领，ppt制作模板，学术方面制作用处较多，特备是毕设答辩(PPt production essentials, ppt making templates, make academic use more special is the complete set of reply)
- 2011-05-04 22:11:13下载
- 积分：1
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TCPIPVolume1
《TCP/IP详解，卷1：协议》是一本完整而详细的TCP/IP协议指南。描述了属于每一层的各个协议以及它们如何在不同操作系统中运行。作者用Lawrence Berkeley实验室的tcpdump程序来捕获不同操作系统和TCP/IP实现之间传输的不同分组。对tcpdump输出的研究可以帮助理解不同协议如何工作。 本书适合作为计算机专业学生学习网络的教材和教师参考书。也适用于研究网络的技术人员。 (" TCP/IP Detailed, Volume 1: The agreement" is a complete and detailed TCP/IP protocol guidelines. Describe each level belonging to the various agreements and how they run on different operating systems. Author Lawrence Berkeley Laboratory with the tcpdump program to capture the different operating systems and TCP/IP to achieve the different between the sub-transmission. Tcpdump output of research can help understand how different protocols work. This book suitable for students learning computer network reference materials and teachers. Research network also applies to technical staff.)
- 2009-06-08 22:46:12下载
- 积分：1
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Computer-Organization
本文档是计算机组成原理的课堂讲义，准确的讲述了该课程的主要内容(This document is a computer organization class notes, accurately describes the main elements of the course)
- 2011-06-02 13:18:38下载
- 积分：1
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OS
说明： 东北大学信息学院操作系统的课件，主讲老师是王大玲，很好的资料，本科生必备！(Northeastern university institute of information of the operating system courseware, the teacher is WangDaLing, very good material, the undergraduate must own!)
- 2012-05-06 19:07:10下载
- 积分：1
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monidianzi
模拟电子技术助学网上的大量学习资料，整理之后做的一本电子书便于离线学习(Analog Electronic Technology student a lot of online learning materials, after finishing an eBook easy to do offline learning)
- 2016-05-27 00:24:52下载
- 积分：1
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UML
面向对象技术ＵＭＬ教程以及
ＵＭＬ基础、案例与应用的详细讲解Unified Modeling Language Reference Manual (Object-oriented technology and UML Tutorial UML basis for the application of the case and explain in detail the Unified Modeling Language Reference Manual)
- 2009-06-18 11:54:14下载
- 积分：1
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backup_sn75453b.pdf
电子芯片sn75453b详细说明
的中文资料
(Chinese information detailed electronic chip sn75453b)
- 2014-02-26 17:33:50下载
- 积分：1
