A New Method for Selecting Thresholding on Wavelet Packet Denoising for Speech Enhancement
- Title
- A New Method for Selecting Thresholding on Wavelet Packet Denoising for Speech Enhancement
- Author
- 양성일
- Keywords
- Denoising; Wavelet packet; Wavelet shrinkage
- Issue Date
- 2001-06
- Publisher
- The Acoustical Society of Korea (한국음향학회)
- Citation
- The Journal of the Acoustical Society of Korea, v. 20, issue. 2E, page. 25-29
- Abstract
- In this paper, we propose a new method for selecting the threshold on wavelet packet denoising. In selecting threshold, the method using median is not efficient. Because this method can not recover unvoiced signal corrupted by noise. So we partition a speech signal corrupted by noise into the pure noise section and voiced section using autocorrelation and entropy. The autocorrelation and entropy can reflect disorder of noise. The new method yields more improved denoising effect. Especially unvoiced signal is very nicely reconstructed, and SNR is improved.
- URI
- https://www.koreascience.or.kr/article/JAKO200111921141047.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/158347
- ISSN
- 1225-4428
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML