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
2387
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 370
190 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
189 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
188 International Conference Dong-il Hyun, Young-cheol Park, Seok-pil Lee, Dae Hee Youn "Enhanced Interchannel Correlation (ICC) Synthesis for Spatial Audio Coding" in AES 43th International Conference, 2011
187 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
186 International Conference Se-Woon Jeon, Young-cheol Park, Seok-Pil Lee, Dae Hee Youn "Virtual Source Panning using Multiple-Wise Vector Base in the Multispeaker Stereo Format" in EUSIPCO, pp.1337-1341, 2011
185 Domestic Conference 신호선,양재모,강홍구 "GSC 빔포머의 실시간 구현을 위한 고정 소수점 연산화" in 한국음향학회, 2011
184 Domestic Conference 신호선, 양재모, 강홍구 "GSC 빔포머의 실시간 구현을 위한 고정 소수점 연산화" in 제 28회 음성통신 및 신호처리 학술대회, vol.28, no.1, 2011
183 Domestic Conference 송은우, 강홍구 "Improved Single Channel speech Enhancement Algorithm Using Adaptive Postfiltering" in 한국방송공학회, 2011
182 Domestic Conference 이진규, 서현선, 강홍구 "A Single Channel Speech Enhancement for Automatic speech Recognition" in 한국방송공학회, 2011
181 Domestic Conference 주영선,정치상,강홍구 "운율 경계 정보를 이용한 HMM 기반의 한국어 음성합성 시스템" in 한국방송공학회, 2011