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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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MATLAB
code matlab Expand With the help of a Matlab graphical user interface through which the user can compress data sets using the codec RLE. The graphical interface supports the following functions:
Input data sequence using appropriate control.
What effect on the screen. It should appear as separate tables of data value and length and the final dialog provides encrypted (
- 2010-01-10 04:44:41下载
- 积分：1
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SPCE061andACM12864
说明： 介绍了ACM12864J液晶显示模块的特性与功能,提出ACM12864J与SPCE061A微控制器的硬件接口设计，以及在此设计基础之上实现字符显示、汉字显示、图形与曲线显示的方法与编程技巧(ACM12864J introduced the characteristics of liquid crystal display module and function, the ACM12864J with SPCE061A MCU hardware interface design, as well as the realization of this design based on the character display, character display, graphic display and curve method and programming skills)
- 2009-08-12 16:41:59下载
- 积分：1
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protues
protues的课件,讲述protues的使用(use of protues)
- 2009-05-10 21:39:52下载
- 积分：1
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80216_xieyijiedu
详细介绍了802.16的协议，这部分是MAC层，其余正在下载中(details of the 802.16 of the Agreement, which is part of the MAC layer, and the rest were Download)
- 2006-08-03 07:47:57下载
- 积分：1
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Effective-and-More-Effective-CPP
关于高效的C++编程的电子书，内容很详细，对于C++学习很有用。(About efficient C++ programming e-books, the content is very detailed, very useful for C++ learning.)
- 2013-07-21 23:41:17下载
- 积分：1
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求职笔试大全
说明： 国内外知名企业的求职笔试大全，包括微软，IBM，华为，中兴等在内，部分还有参考答案，相信对想在IT界大展宏图的你会有很大的帮助的！哈哈！(famous enterprises at home and abroad for job-seekers written Daquan, including Microsoft, IBM, Huawei, ZTE, there are some reference to the answer, I believe in the IT sector to show the ambitious you will be a big help! Haha!)
- 2005-10-25 08:46:39下载
- 积分：1
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R数据可视化手册
说明： 本书提供了快速绘制高质量图形的150多种技巧，每个技巧用来解决一个特定的绘图需求。读者可以通过目录快速定位到自己遇到的问题，查询相应的解决方案。(This book provides more than 150 techniques for quickly drawing high quality graphics, each of which addresses a specific drawing requirement. Readers can quickly locate their own problems through the directory, query the corresponding solution.)
- 2020-06-25 16:00:02下载
- 积分：1
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第五版数字通信答案
该文档是数字通信第五版的课后答案，英文版的答案(This document is the answer to the fifth edition of digital communication after class and the answer to the English edition.)
- 2020-11-10 19:29:47下载
- 积分：1
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pf3d
perform3D混凝土资料，对于学习混凝土结构的建模有很大的帮助(perform3D concrete assistant, a great help for learning the modeling of concrete structures)
- 2012-03-05 10:17:25下载
- 积分：1
