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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 f
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条码识别 博士学位论文，条码识别很方便，希望对条码识别的人有帮助 ceb格式-PhD thesis Barcode, bar code identification is easy, want to help people identify the bar code format ceb
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Along with investigating similarity metrics between audio
material, the topic of robust matching of pairs of audio content
has gained wide interest recently. In particular, if this matching
process is carried out using a compact representation
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VB多页面缩放打印，自动识别数据库路径，根据字宽设置基本列宽，根据纸张大小和字高设置每页打印行数，换页重复打印表头，对学习不错的Vb源代码。-VB multi page zoom printing, automatic identification database path, according to the word width setting column width, according to the paper size and type high settings page numb
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Cross-entropy based rare-event simulation for the
identification of dangerous events in power systems paper
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本文设计了一种基于无线传感器网络的人体探测’身份识别和定位系统$智能监控系统)系统由传统的红外感应’微波探
测和身份识别设备’定位系统共同组成-This paper designed a kind of human detection based on wireless sensor network identification and positioning system $intelligent monitoring system) system the traditional in
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