Papers

A Two-Channel Minimum Mean-Square Error Log-Spectral Amplitude Estimator for Speech Enhancement

International Conference
2006~2010
작성자
한혜원
작성일
2008-05-06 23:12
조회
214
Authors : Min-seok Choi, Hong-Goo Kang

Year : 2008

Publisher / Conference : HSCMA

This paper proposes a novel two-channel speech enhancement structure using the minimum mean-square error log- spectral amplitude (MMSE-LSA) estimator. The proposed two-channel enhancement algorithm utilizes a spatial relationship between two input signals to accurately estimate the noise power spectral density (PSD) needed for the MMSE-LSA algorithm. The proposed structure improves the noise reduction capacity with less speech distortion, while its complexity is much lower than simple cascade structures. The performance of the proposed algorithm is evaluated by automatic speech recognition tests in a car environment. Comparing to a simple cascading of two- and single-channel algorithms, the proposed algorithm improves the relative recognition rate by 17.5% for high speed conditions and 14.8% for low speed conditions, respectively.
전체 327
31 International Conference Min-seok Choi, Hong-Goo Kang "A Two-Channel Minimum Mean-Square Error Log-Spectral Amplitude Estimator for Speech Enhancement" in HSCMA, 2008
30 International Conference Yoomi Hur, Young-Choel Park, Seok-Pil LEE, Dae Hee Youn "Efficient Individualization of HRTF Using Critical-Band Based Spectral Cues Control" in 124th Convention of Audio Engineering Society, pp.7447, 2008
29 International Conference Jae-woong Jeong, Young-Choel Park, Seok-Pil Lee, Dae Hee Youn "Multi-Channel Dereverberation System Using Modified Correlation-Based Blind Deconvolution and Multi-Microphone Spectral Subtrac" in 124th Convention of Audio Engineering Society, pp.7402, 2008
28 International Conference Sang-Wook Shin, Chang-Heon Lee, Hyen-O Oh, Hong-Goo Kang "Designing a unified speech/audio codec by adopting a single channel harmonic source separation module" in ICASSP, 2008
27 International Conference Jeng-Geun Kim, Dong-il Hyun, Dae Hee Youn, Young-Cheol Park "Quality Improvement Using a Sinusoidal Model in HE-AAC" in 123th Convention of Audio Engineering Society, pp.7292, 2007
26 International Conference Min-Ki Lee, Kyung-Tae Kim, Hong-Goo Kang, Dae Hee Youn "Speech Quality Estimation Using Packet Loss Effects in CELP-Type Speech Coders" in INTERSPEECH, pp.1697-1700, 2007
25 International Conference Chang-Heon Lee, Hong-Goo Kang "Improvement of Artificial Onset Reconstruction in VMR-WB Standard under Packet-loss Environments" in ITC-CSCC, 2007
24 International Conference Sun-kuk Moon, Tack-sung Choi, Young-Cheol Park, Dae Hee Youn "An Efficient Feature Selection Algorithm Based on Kullback-Leibler Divergence for Music Information Retrieval" in ITC-CSCC, pp.524-525, 2007
23 International Conference Min-Ki Lee, Sung-Wan Youn, Kyung-Tae Kim, Hong-Goo Kang "Speech Quality Degradation in Packet Loss Environment at Specific Speech Class" in ITC-CSCC, pp.781-782, 2007
22 International Conference Chi-Sang Jung, Bong-Jin Lee, Jeung-Yoon Choi, Hong-Goo Kang "AN ADAPTIVE SELECTION OF FRAME SHIFT FOR SPEAKER RECOGNITION SYSTEMS" in The Second Beijing-Hong Kong International Doctoral Forum, 2007