Harmonic-band Complex Wavelet Transform Audio Analysis and Synthesis

A. R. Gillan, P. R. Hill*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

A novel improvement to an existing wavelet representation is presented within the context of analysis and synthesis of harmonic audio signals. The approach replaces the discrete wavelet transform stage in the harmonic-band wavelet transform with the dual-tree complex wavelet transform. The harmonic-band wavelet transform lacks explicit phase information, is subject to considerable transform domain coefficient aliasing and its filters exhibit poor frequency selectivity and high sidelobe levels. Integration of the dual-tree complex wavelet transform mitigates all of these disadvantages and significantly improves the accuracy of signal synthesis where signals are synthesised through autoregressive analysis and linear prediction of transform domain coefficients.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages850-854
Number of pages5
ISBN (Electronic)9781479981311
DOIs
Publication statusPublished - 17 Apr 2019
Event44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Brighton, United Kingdom
Duration: 12 May 201917 May 2019

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2019-May
ISSN (Print)1520-6149

Conference

Conference44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019
CountryUnited Kingdom
CityBrighton
Period12/05/1917/05/19

Keywords

  • Audio
  • Synthesis
  • Wavelet

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