gusucode.com > 基于Matlab GUI的语音信号去噪处理 > 基于Matlab GUI的语音信号去噪处理\文件说明.txt

    应用数字滤波器的理论和设计方法,在Matlab软件开发环境下分别通过脉冲响应不变法和双线性变换法设计出了无限长单位冲激响应(IIR)数字滤波器,并借助Matlab图形用户界面(GUI)设计了IIR数字滤波器人机交互界面,使得该系统平台界面简洁直观,操作方便且功能齐全,最终实现了对加有噪声语音信号的去噪处理。通过对比仿真结果表明:切比雪夫Ⅱ型低通滤波器对加有噪的语音去噪效果最佳。Based on the theory and design method of digital filter, an infinite unit impulse response (IIR) digital filter is designed by impulse response invariant method and bilinear transformation method respectively in Matlab software development environment. By means of Matlab graphical user interface (GUI) design of the IIR digital filter human-computer interaction interface, making the system platform interface is simple and intuitive, easy to operate and fully functional, and ultimately to add a noisy voice signal denoising. The simulation results show that the Chebyshev type Ⅱ low pass filter has the best effect on the noisy speech denoising.