Discrete wavelet transform based shift invariant analysis scheme for transient sound signals

Date

2010-09-06

Author

Wasim, Ahmad
Hacıhabiboğlu, Hüseyin
Kondoz, Ahmet

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Discrete wavelet transform (DWT) has gained widespread recognition and popularity in signal processing due to its ability to underline and represent time-varying spectral properties of many transient and other nonstationary signals. However, DWT is a shift-variant transform. This shift-variance is a major problem with the use of DWT for transient signal analysis and pattern recognition applications. A number of modified forms of DWT have been investigated in recent years that provide approximate shift-invariant transform but at the cost of increased redundancy and complexity. In this paper, a shift-invariant analysis scheme is proposed which is non-redundant. This scheme combines minimum-phase (MP) reconstruction with the DWT so that the resultant scheme provides a shift-invariant transform. The detailed properties of MP signal and different methods to reconstruct it are explained. The proposed scheme can be used for the analysis-synthesis, classification, and compression of transient sound signals.

Subject Keywords

Pattern recognition, Signal processing

URI

https://hdl.handle.net/11511/72012
https://www.scopus.com/record/display.uri?eid=2-s2.0-84872717993&origin=resultslist&sort=plf-f&src=s&st1=&st2=&sid=5b5e6f9e726d7a554c0e75e9debd7281&sot=b&sdt=b&sl=108&s=TITLE-ABS-KEY+%28Discrete+wavelet+transform+based+shift+invariant+analysis+scheme+for+transient+sound+signals%29&relpos=0&citeCnt=1&searchTerm=

Conference Name

13th International Conference on Digital Audio Effects, DAFx 2010 Proceedings (6-10 September 2010)

Collections

Graduate School of Informatics, Conference / Seminar

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Citation Formats

A. Wasim, H. Hacıhabiboğlu, and A. Kondoz, “Discrete wavelet transform based shift invariant analysis scheme for transient sound signals,” presented at the 13th International Conference on Digital Audio Effects, DAFx 2010 Proceedings (6-10 September 2010), Graz, Austria, 2010, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72012.