Speech Enhancement Using Level Adapted Wavelet Packet with Adaptive Noise Estimation
- Title
- Speech Enhancement Using Level Adapted Wavelet Packet with Adaptive Noise Estimation
- Author
- 권영헌
- Keywords
- Level adapted wavelet packet; Spectral subtraction weight; Adaptive noise estimation
- Issue Date
- 2003-07
- Publisher
- 한국음향학회
- Citation
- The Journal of the Acoustical Society of Korea v. 22, Issue. 2E, page..87-92
- Abstract
- In this paper, a new speech enhancement method using level adapted wavelet packet is presented. First, we propose a level adapted wavelet packet to alleviate a drawback of the conventional node adapted one in noisy environment. Next, we suggest an adaptive noise estimation method at each node on level adapted wavelet packet tree. Then, for more accurate noise component subtraction, we propose a new estimation method of spectral subtraction weight. Finally, we present a modified spectral subtraction method. The proposed method is evaluated on various noise conditions: speech babble noise, F-l6 cockpit noise, factory noise, pink noise, and Volvo car interior noise. For an objective evaluation, the SNR test was performed. Also, spectrogram test and a very simple listening test as a subjective evaluation were performed.
- URI
- https://www.koreascience.or.kr/article/JAKO200311921990363.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/156092
- ISSN
- 1225-4428
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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