고품질 인터넷 전화 서비스를 위한 스마트 디바이스에서 홈 유비쿼터스 환경적 노이즈 제거 방안 연구
Ubiquitous Environmental Noise Removal Method on Smart Devices for High-Quality Internet Telephony Service
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 논문은 유비쿼터스 홈 환경에서 고품질 인터넷전화 서비스를 제공하기 위한 노이즈 신호 제거 방안을 제안하였다. 원음 신호의 손실 없이 유비쿼터스 환경에서 환경적 노이즈 신호를 제거하기 위해서 새로운 위너필터 기반의 전처리 노이즈 제거 방안을 적용하였다. 제안된 방안은 다양한 스마트 디바이스에서 팬 잡음, 에어컨디션 잡음, 샤워실 잡음, 등 다양한 노이즈와 함께 실험되었으며 PESQ 평가 방안으로 제안된 방안이 검증되었다.
Abstract
This paper presents noisy signal removal method on smart devices for internet telephony service at the ubiquitous environment. In order to reduce the environmental noise signal without speech distortion efficiently in a pervasive home environment, we provide a new Wiener filtering based reduction technique with pre-processing on various smart devices at a pervasive home. For various noisy conditions like White Gaussian, fan, air-conditioner, babble, shower-bath noises, etc., at home, the perceptual evaluation of speech quality (PESQ) evaluation is performed to evaluate the performance of the proposed method.
참고문헌 (15)
- R. J. Mcaulay, "Speech enhancement using a soft decision noise suppression filter", IEEE Trans. Acoust., Speech, Signal Process, 28(2), pp.137~145 (1980)
- S. F. Boll, "Suppression of acoustic noise in speech using spectral subtraction", IEEE Trans. Acoust., Speech, Signal Process, 27(2), pp.113~120 (1979)
- Y. Ephraim, "Speech enhancement using a minimum mean-square error short-time spectral amplitude estimator", IEEE trans. Acoust., Speech, Signal Process., 32(6), pp.1109~1121 (1984)
- Y. Ephraim, "Speech enhancement using a minimum mean-square error log-spectral amplitude estimator", IEEE trans. on Acoustics, Speech, and Signal Process., 33(2), pp.443~445 (1985)
- Mansoo Park, "Frequency-Temporal Filtering for a Robust Audio Fingerprinting Scheme in Real-Noise Environments", ETRI Journal, 28(4), pp.509~512 (2006), 한국전자통신연구원
- Hyeon-Cheol Lee, "Design of Robust Detector with Noise Variance Estimation Censoring Input Signals over AWGN", ETRI Journal, 29(1), pp.110~112 (2007), 한국전자통신연구원
- Nidal S Kamel, "A Linear Prediction Based Estimation of Signal-to-Noise Ratio in AWGN Channel", ETRI Journal, 29(5), pp.607~613 (2007), 한국전자통신연구원
- Kyoung Ho Bang, "Audio Transcoding for Audio Streams from a T-DTV Broadcasting Station to a T-DMB Receiver", ETRI Journal, 28(5), pp.664~667 (2006), 한국전자통신연구원
- K. K. Paliwal, "A speech enhancementmethod based on Kalman filtering", Proc. ICASSP'87, pp.177~180 (1987)
- S. Gannot, "Iterative and sequential Kalman filter-based speech enhancement algorithms", IEEE Trans. Speech Audio Process, 6(4), pp.373~385 (1998)
- R. Martin, "Noise power spectral density estimation based on optimal smoothing and minimum statistics", IEEE Trans. Speech Audio Processing, 9(5), pp.504~512 (2001)
- M. H. Hayes, "Statistical Digital Signal Processing and Modeling" (1996), John Wiley & Sons
- B. Widrow, "Adaptive Signal Processing" (1985), Prentice Hall
- "Perceptual evaluation of speech quality (PESQ), an objective method for end-to-end speech quality assessment of narrow-band telephone networks and speech codec, ITU-T Recommend. P.862, Feb. 2001", ~ (2001)
- Speech service option 3 for wide-band spectrum digital systems, "Enhanced variable rate codec", ~ (1996)