基于matlab的语音信号分析与处理

基于 matlab 的语音信号分析与处理摘要:滤波器设计在数字信号处理中占有极其重要的地位，FIR 数字滤波器和IIR 滤波器是滤波器设计的重要组成部分。Matlab 功能强大、编程效率高, 特别是 Matlab 具有信号分析工具箱,不需具备很强的编程能力,就可以很方便地进行信号分析、处理和设计。基于 MATLAB 有噪音语音信号处理的设计与实现，综合运用数字信号处理的理论知识对加噪声语音信号进行时域、频域分析和滤波。使用窗函数法来设计 FIR 数字滤波器，用巴特沃斯、切比雪夫和双线性变法设计 IIR 数字滤波器，并利用 MATLAB 作为辅助工具完成设计中的计算与图形的绘制。关键词：数字滤波器；MATLAB；切比雪夫Abstract: Filter design in digital signal processing plays an extremely important role, FIR digital filters and IIR filter is an important part of filter design. Matlab is powerful, programming efficiency, Matlab also has a particular signal analysis toolbox, it need not have strong programming skills can be easily signal analysis, processing and design. MATLAB based on the noise issue speech signal processing design and implementation of digital signal processing integrated use of the theoretical knowledge of the speech signal plus noise, time domain, frequency domain analysis and filtering. The corresponding results obtained through theoretical derivation, and then use MATLAB as a programming tool for computer implementation.Implemented in the design process, using the window function method to design FIR digital filters with Butterworth, Chebyshev and bilinear Reform IIR digital filter design and use of MATLAB as a supplementary tool to complete the calculation and graphic design Drawing.Keywords：digital filter; MATLAB; Chebyshev语音信号处理是讨论用数字信号处理技术和语音学知识对语音信号进行处理的新兴的学科，是目前进展最为迅速的信息科学讨论领域的核心技术之一。通过语音传递信息是人类最重要、最有效、最常用和最方便的交换信息形式。Matlab 语言是一种数据分析...