基于声卡和MATLAB的音频信号的采集和处理 1).pdf
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第33卷第3期 长春理工大学学报(自然科学版) Vol.33 No.3
2010年9月 Journal of Changchun University of Science and Technology Natural Science Edition Sep. 2010
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基于声卡和MATLAB 的音频信号的采集和处理
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陈璇 ,李启海 ,朱万彬 ,张继勇 ,鲁秀娥
(1.长春理工大学,长春 130022 ;2.中国科学院 长春光学精密机械与物理研究所,长春 130022 ;
3.吉林省文化科技研究所,长春 130022 )
摘 要:MATLAB 是数据分析和处理功能都非常强大的工程实用软件,可以灵活地驱动声卡采集和处理音频信号。
本文探讨了基于声卡和MATLAB 的音频信号采集和数据处理方法,并结合古琴音板音频检测的应用实例进一步证
明:利用声卡做主要硬件,MATLAB 做软件进行音频信号的采集和处理不仅简单可行,而且编程处理方便,可以
广泛应用于音频检测等工程领域。
关键词:声卡;MATLAB ;音频信号采集;频谱分析
中图分类号:TG50 1;TG 113.24+4 文献标识码:A 文章编号:1672 - 9870 (2010 )03 - 007 1 - 04
Collecting and Processing of Audio Signal with
MATLAB and Soundcard
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CHEN Xuan ,LI Qihai ,ZHU Wanbin ,ZHANG Jiyong ,LU Xiue
(1.Changchun University of Science and Technology ,Changchun 130022 ;
2.Changchun Institute of Optics ,Fine Mechanics and Physics,Chinese Academy of Sciences ,Changchun 130022 ;
3.Jilin Culture and Technology Institute ,Changchun 130022)
Abstract :MATLAB can drive soundcard to collect and process the audio signal smartly with its huge function of data anal-
yzing and processing. The method of collecting and processing of audio signal with soundcard and MATLAB software is di-
scussed in this paper. A case of using audio signal to detect the soundboard of ancient qin is combined to prove that ,this
method have been widely applicated in the engineering fields for its simpleness and conveniency.
Key words :soundcard ;MATLAB ;collecti
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