Application of the dual-tree wavelet transform for digital filtering of noisy audio signals
- Authors: Yasin A.S.1,2, Pavlov A.N.1,3,4, Hramov A.E.1,3,4
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Affiliations:
- Chernyshevskii State University
- University of Technology
- Yuri Gagarin State Technical University of Saratov
- Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
- Issue: Vol 62, No 3 (2017)
- Pages: 236-240
- Section: Theory and Methods of Signal Processing
- URL: https://journals.rcsi.science/1064-2269/article/view/198057
- DOI: https://doi.org/10.1134/S1064226917030238
- ID: 198057
Cite item
Abstract
The problem of refinement of the quality of filtering of noisy audio signals with the help of the methods based on a discrete wavelet transform with real bases and a dual-tree (complex) wavelet transform using analytical wavelets as basis functions is considered. Test examples and processing of experimental data have shown that, in the case of the optimum selection of the threshold level, the approach using the dual-tree wavelet transform ensures the minimum signal reconstruction error after correction of wavelet coefficients.
About the authors
A. S. Yasin
Chernyshevskii State University; University of Technology
Email: pavlov.lesha@gmail.com
Russian Federation, Saratov, 410012; Baghdad
A. N. Pavlov
Chernyshevskii State University; Yuri Gagarin State Technical University of Saratov; Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Author for correspondence.
Email: pavlov.lesha@gmail.com
Russian Federation, Saratov, 410012; Saratov, 410054; Saratov, 410019
A. E. Hramov
Chernyshevskii State University; Yuri Gagarin State Technical University of Saratov; Kotel’nikov Institute of Radio Engineering and Electronics (Saratov Branch)
Email: pavlov.lesha@gmail.com
Russian Federation, Saratov, 410012; Saratov, 410054; Saratov, 410019