speechprotected1

这是VAD有关代码。也就是说为了在音声中找到activity voice 用GAET方法来决定阈值，然后判别了无音区间。(voice activity detection)

[FFT]_matlab中关于FFT的使用(理解频率分辨率、补零问题).( [FFT ] _ matlab on the FFT use (understanding the frequency resolution, zero problem ). )

discription of the gaussian distrbution

在Matlab环境下运行function [d, RS] = fractal( x )即可。(In the Matlab environment to run function [d, RS] = fractal (x) can be.)

sinc插值，可以理解为所有输入样本的加权叠加(sinc interpolation, can be understood as a weighted superposition of all input samples)

matlab求取发动机及电机最优工作曲线的代码(strike the optimal curve engines and motors code by matlab)

It is very imoprtant I hope it could help you

gmsk modulation. some code

说明：  DSP本身在内的所有电子器件都是干扰源，而且系统所处的工作环境中还有很多外来干扰源，再加上语音识别技术对信号噪声非常敏感，所以在系统设计中必须考虑系统的抗干扰问题。(DSP itself, including all electronic devices are sources of interference, and the system environment in which there are many external sources of interference, coupled with voice recognition technology is very sensitive to signal noise, so the system design must consider the system of anti- interference problem.)

低通Chebyshev 1型滤波器，通带边界频率为1500Hz，通带波纹小于3dB，阻带边界频率2000Hz，阻带衰减为40dB，采样频率为8000Hz(Low-pass Chebyshev 1 filter passband edge frequency of 1500Hz, less than 3dB passband ripple, stopband edge frequency 2000Hz, stop-band attenuation of 40 dB, the sampling frequency to 8000Hz)