Papers

Transient noise reduction in speech signal with a modified long-term predictor

International Journal
2011~2015
작성자
이진영
작성일
2011-12-01 14:57
조회
1279
Authors : Min-Seok Choi, Hong-Goo Kang

Year : 2011

Publisher / Conference : EURASIP Journal on Advances in Signal Processing

Volume : 141

This article proposes an efficient median filter based algorithm to remove transient noise in a speech signal. The proposed algorithm adopts a modified long-term predictor (LTP) as the pre-processor of the noise reduction process to reduce speech distortion caused by the nonlinear nature of the median filter. This article shows that the LTP analysis does not modify to the characteristic of transient noise during the speech modeling process. Oppositely, if a short-term linear prediction (STP) filter is employed as a pre-processor, the enhanced output includes residual noise because the STP analysis and synthesis process keeps and restores transient noise components. To minimize residual noise and speech distortion after the transient noise reduction, a modified LTP method is proposed which estimates the characteristic of speech more accurately. By ignoring transient noise presence regions in the pitch lag detection step, the modified LTP successfully avoids being affected by transient noise. A backward pitch prediction algorithm is also adopted to reduce speech distortion in the onset regions. Experimental results verify that the proposed system efficiently eliminates transient noise while preserving desired speech signal.
전체 363
34 International Journal Min-Seok Choi, Hong-Goo Kang "Transient noise reduction in speech signal with a modified long-term predictor" in EURASIP Journal on Advances in Signal Processing, vol.141, 2011
33 International Journal Myung-Suk Song, Cha Zhang, Dinei Florencio, Hong-Goo Kang "An Interactive 3-D Audio System With Loudspeakers" in IEEE Transactions on Multimedia, vol.13, issue 5, pp.844-855, 2011
32 International Journal Tacksung Choi, Young-Cheol Park, Dae Hee Youn, Seokpil Lee "Virtual Sound Rendering in a Stereophonic Loudspeaker Setup" in IEEE Transactions on Audio, Speech, and Language Processing, vol.19, issue 7, pp.1962-1974, 2011
31 International Journal Jae-seong Lee, Young-Cheol Park, Dae Hee Youn, Kyung-ok Kang "Efficient Windowing Scheme for MDCT-Based TCX in AMR-WB+" in IEICE Transactions on Information and Systems, vol.E94-D, No.6, pp.1341-1344, 2011
30 International Journal Yoomi Hur, Jonathan S. Abel, Young-Cheol Park, Dae Hee Youn "Techniques for Synthetic Reconfiguration of Microphone Arrays" in Journal of the AES, vol.59, issue 6, pp.404-418, 2011
29 International Journal Chi-Sang Jung, Hyunson Seo, Hong-Goo Kang "Estimating Redundancy Information of Selected Features in Multi-dimensional Pattern Classification" in Pattern Recognition Letters, vol.32, issue 4, pp.590-596, 2011
28 International Journal Dong-il Hyun, Donggeum Lee, Youngcheol Park, Dae Hee Youn, Jeongil Seo "Joint Channel Coding Based on Principal Component Analysis" in ETRI Journal, vol.32, issue 5, pp.831-834, 2010
27 International Journal Min-Seok Choi, Hong-Goo Kang "A Two-channel Noise Estimator for Speech Enhancement in Highly Non-stationary Environment" in IEEE Transactions on Audio, Speech, and Language Processing, vol.19, issue 4, pp.905-915, 2011
26 International Journal Chi-Sang Jung, Moo Young Kim, Hong-Goo Kang "Selecting Feature Frames for Automatic Speaker Recognition Using Mutual Information" in IEEE Transactions on Audio, Speech, and Language Processing, vol.18, issue 6, pp.1332-1340, 2010
25 International Journal Bong-Jin Lee, Chi-Sang Jung, Jeung-Yoon Choi, Hong-Goo Kang "On the Importance of Transition Regions for Automatic Speaker Recognition" in IEICE Transactions on Information and Systems, vol.E93-D, No.1, pp.197-200, 2010