A PRACTICAL METHOD FOR MEASURING CHARACTERISTIC PARAMETERS OF AUDIO SIGNALS

摘要：

　　A practical method for measuring the characteristic parameters of audio signals is introduced.This paper gives the derivation of the formula of mathematical model and expounds the theoretical basis of the measurement of the characteristic parameters of the audio signal.In this paper,the reason of error of measuring frequency and amplitude of the Fourier transform method is analyzed,and the mathematical model for improving measuring accuracy is established by data fitting.By MATLAB simulation,the simulation of the Fourier transform method can be used to measure the characteristic parameters of audio signals.

关键词： Voice frequency signal Sound detection MATLAB Simulate the Fourier transform

作者: Zhi Dong Liu Xue Zhong Ai Ye Li Yang

作者单位: Department of control engineering,Jilin Institute of Chemical Technology,No.45,Chengde street,Longtan District,Jilin,China

会议类型: 国际会议

会议名称: 2018 International Conference on New Materials and Intelligent Manufacturing (ICNMIM(2018年第一届新材料与智能制造国际会议))

会议地点: 吉林

会议语种:英文

页码: 5-7

在线出版日期: 2018-06-23（万方平台首次上网日期，不代表论文的发表时间）