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把一种基于语音的正弦模型的高音何时长修正算法应用于汉语普通话的韵律调整(To a voice-based sinusoidal model when long treble Mandarin correction algorithm applied to adjust the rhythm)

sift代码，matlab版的，对初学者有用哦， 需要得下吧(sift code, matlab version, useful for beginners Oh, you need to get under the bar)

Phase_Unwrapping_2D是图像处理中用于相位匹配的经典代码，欢迎大家下载。(Phase_Unwrapping_2D is the image processing code for phase matching of the classic, welcomed everyone to download.)

说明：  实现L-M非线性最小二乘优化，并有相关测试程序(LM achieve nonlinear least squares optimization, and related test procedures)

frequency estimation using TLS ESPRIT

计算股票的历史波动率的MATLAB函数:securityVolatility.m(security Volatility, securityVolatility.m)

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

主动噪声控制的经典FX-lms算法仿真，包括算法框图，结果分析(Active Noise Control of the classic FX-lms algorithm)

dtc of pmsm with 12 sector

abou using matlab to finish the possion process and it also include the iamge