学号 14 112 220266 毕业设计(论文)题目: 基于 MATLAB 的语音信号滤波处理 作 者 夏杰 届 别 2025 届 院 别 信息与通信工程学院 专 业 电子信息工程 指导老师 罗朝明 职 称 副教授 完成时间 2025 年 5 月 17 日 摘要随着计算机和信息科学的飞速进展，信号处理逐渐进展成为一门独立的学科，成为信息科学的重要组成部分，在语音处理、雷达、图像处理、通信、生物医学工程等众多领域中得到广泛应应用。本论文讨论了滤波器的设计，并通过设计好的滤波器语来分析语音信号。在计算机中录入一段语音信号，通过 MATLAB 对语音信号进行时频变换和分析；再通过 MATLAB 构造一定频率的噪音信号，再将两个信号进行合成；然后设计不同类型的数字滤波器对其噪音进行滤波处理。关键词：MATLAB；语音信号；滤波器；仿真；AbstractWith the rapid development of computers and information science, signal processing is becoming an independent discipline, and playing an important part in information science. It has been widely applied in speech processing, radar, image processing, communication, bio-medical engineering and many other fields. This paper has studied the filter design, and it analyses the voice signal through the designed filter. After recording a voice signal in the computer, then doing the time-frequency transformation and analyses for the voice signal through MATLAB. We construct a fixed-frequency signal, and synthesis the two signals, and it deals with filter processing on the speech signal with noise, and analyses the signals in the time domain and frequency domain.Keyword: Matlab；Voice signal；Filter；Simulation；目 录摘要................................................................IAbstract..........................................................................................................................................II第一章 绪论.................................................................................................................................11.1 ...
