摘要
利用麦克和计算机声卡作为声音信号采集的硬件,在LabVIEW环境下开发了计算机音频采集分析系统.本系统能够采集各种工况环境的声音信号,并具有信号保存、调用、回放等功能,同时实现了对声音信号的各种数字分析,为声音振动研究和工况状态识别提供了有效的工具.
Based on computer sound card and microphone hardware platform, a sound acquisi- tion system is built under LabVIEW environment. With this sound system, the voice signal under different conditions can be collected and processed, with the functions of preservation and playback, which is a powerful tool for sound vibration research and recognition under different conditions.
出处
《北方工业大学学报》
2012年第3期42-45,共4页
Journal of North China University of Technology
基金
北京市大学生科学研究与创业行动项目(2011012)
关键词
声卡
LABVIEW
声音采集
时频分析
sound card
LabVIEW
acquisition of sound
time-frequency analysis
