一种基于LabVIEW的声音采集与音阶识别系统

A Sound Acquisition and Scale Recognition System Based on LabVIEW

设计一种基于LabVIEW的声音采集与音阶识别系统,可在Windows环境下显示笛音频率、幅度及处理后的音阶,可连续采集声音,完成模拟信号到数字信号的转换,进而在LabVIEW软件界面显示原始采集数据的波形图。经过测验,该系统在使用中识别误差较小,可以很好地完成声音采集与音阶识别,有大规模推向市场的可能性。

This paper designs a sound acquisition and scale recognition system based on LabVIEW.The system can display the frequency,amplitude and scale of flute sound in Windows environment,continuously collect sound,complete the conversion from analog signal to digital signal,and then display the waveform of original collected data in LabVIEW software interface.After testing,the recognition system has a small error in use,can well complete the function of voice acquisition and scale recognition,and has the possibility of large-scale market-oriented.