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Crackle Sounds Analysis By EprclMode Decomposition

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4 Author(s)
Charleston-Villalobos, S. ; Univ. Nacional Autonoma de Mexico, Mexico City ; Gonzalez-Camarena, R. ; Chi-Lem, G. ; Aljama-Corrales, T.

In this article, the application of a newly developed signal analysis technique, the empirical mode decomposition (EMD) to detect fine and coarse crackles has been presented. The qualitative evaluation by inspecting the results of simulated and real cases demonstrates that EMD application is promising, especially for low SNR and for isolated or overlapped fine crackles. For coarse crackles, the task to identify their position and type is more demanding. Future work includes joining EMD with other signal processing techniques, to determine whether identification of crackles or any other adventitious events may be improved

Published in:

Engineering in Medicine and Biology Magazine, IEEE  (Volume:26 ,  Issue: 1 )

Date of Publication:

Jan.-Feb. 2007

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