nesc-ref

关于端点检测的几种方法，语音样本是自己录制的，对传统算法做了一些改进，加入了去噪，去噪之后再进行端点检测，均调通 vad0303：自己设置调整门限为一定值 vad0310：根据能量值和过零率设置门限，自适应门限值 vad0310_2：基于比例因子的门限自调整 vad0310.m加入了噪声，端点检测前都噪声进行了处理 entropy.m：基于自适应子带频谱熵的稳健性语音端点检测 可用于语音增强及端点检测 dbdoor.m：双门限算法，用于语音端点检测。可以通过调整门限值，并加入门限自适应算法，实现语音端点检测(Several methods on endpoint detection, recording their own voice samples, the traditional algorithm has made some improvements, adding a de-noising, and then after de-noising endpoint detection are transferred through)

说明：  利用最速下降法的3输入2使出的BP网络，可以快速的得到训练结果(Steepest descent method using 3-input 2 resorted to the BP network, the result can be trained quickly)

一个可以画四个纵坐标的Matlab程序，包括一个测试文件(One can draw four vertical coordinates of the Matlab procedures, including a test file)

jQuery imgarea v0.9,它是一款图像裁切专用的选区插件,它本身并没有图像裁切功能,只是生成一个类似选区的虚线框,拖动四角可以调整选区大小,可以拖动整个选区移动,高亮显示被选择的图像区域，用法有很多种，具体请下载示例包，源码爱好者整理有示例文件，一看便知。(jQuery imgarea v0.9, it is a special constituency image cropping plugin, which itself does not have image cropping functionality, but dashed box generates a similar constituency, constituency size can be adjusted by dragging the corners, you can drag to move the entire selection highlight the selected image area, there are many usage details, please download the sample package, source enthusiasts have a sample file sorting, at a glance.)

This file is implementing a bluetooth system which is equipped with frequency hopping method, this method is used for system protection against jamming, This is a matlab simulink file.

说明：  《MATLAB语言常用算法程序集》的光盘，方便大家学习常用的数值算法的matlab编程。(MATLAB algorithms commonly used in assembly language)

简单的读谱器，输入相应的音乐简谱，就可以实现音乐的播放(Simple to read music, input the corresponding music notation, music playback can be achieved)

该文件是学习matlab的经典教材，国内无法找到，本人从国外所得。(this book is the classical textbook for matlab.it is easy to learn and grasp by matlab engineers.)

本程序是一个lagrang插值基于在matlab程序上的实现。可以很好的满足精度的需求(This program is a lagrang interpolation procedure based on the matlab implementation. Accuracy can satisfy the needs )

这是讲述复值信号的pdf文档，对加深信号的学习会有帮助。(This is about the complex-valued signal pdf documents, the study would help to enhance the signal.)