学号：14110712912毕业设计题 目：基于 LABVIEW 的声音信号采集处理系统作 者刘 根届 别2025学 院物理与电子学院专 业电子科学与技术指导老师周 峰职 称讲师完成时间2025.05摘 要LABVIEW 虚拟仪器结合了图形化编程方式的高性能与灵活性以及专为测试、测量与自动化控制应用设计的高端性能与配置功能。并且为数据采集、仪器控制、测量分析与数据显示等各种应用提供必要的开发工具。本文采纳了一款图形化的编程工具 LABVIEW，结合笔记本电脑自带的声卡，设计了一个基于 LABVIEW 的语音信号采集处理系统。在该系统中，通过设置声卡函数、谱分析函数以及输入输出端口就可以得到信号的滤波、频谱和功率谱等参数，并对声卡采集到的波形信号进行实时显示，最后通过 SineGen 声音信号发生器对该系统进行实验测试。关键词：语音信号；声卡；信号分析；数据采集AbstractLABVIEW virtual instrument is a combination of graphical programming method of high performance and flexibility, and specially designed for test, measurement and automation control application of high performance and the configuration function. And for the analysis of data acquisition, instrument control, measurement and data display a variety of applications such as provide the necessary development tools.This paper adopted a LABVIEW graphical programming tools, combined with the notebook computer with sound card, designed a speech signal collection and processing system based on LABVIEW. In the system, by setting the sound card function and spectrum analysis function and input/output port can be parameters such as signal filtering, spectrum and power spectrum, and the sound card to real-time display of waveform signal collected, finally through SineGen voice signal generator to test the system.Key words: speech signal; audio card; signal analysis; datacollection 目 录第一章 绪 论..............................................................................................................................11.1 声音信...
