Audio signal separation via a combination procedure of time-reversal and deconvolution process

Bo Hsien Wu, Gee Pinn Too, Sony Lee

研究成果: Review article同行評審

19 引文 斯高帕斯(Scopus)

摘要

Time-reversal method (TRM) is based on principle of reciprocity of sound by propagating of a reversal signal in time series to compensate distortion due to path effect in propagation and to focus the signal at the original source location. In recent years, the technique has been applied in optics, ultrasound and underwater acoustic communication. In the present study, a procedure for audio signal separation is developed by applying time-reversal and deconvolution process. The procedure separates sources from audio signal in time domain. The advantages of this procedure are to separate a specific source from a combination signal of multiple sources and to reduce reverberation effectively. Finally, a deconvolution process of finding impulse response function (IRF) is developed where single value decomposition (SVD) and Tikhonov regularization process are used to solve ill-conditioned and singular linear systems. In addition, the effect of signal-to-noise ratio (SNR) and number of array sensors are discussed in details.

原文English
頁(從 - 到)1431-1443
頁數13
期刊Mechanical Systems and Signal Processing
24
發行號5
DOIs
出版狀態Published - 2010 七月

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 訊號處理
  • 土木與結構工程
  • 航空工程
  • 機械工業
  • 電腦科學應用

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