Papers

A Soft-Decision Adaptation Mode Controller for an Efficient Frequency-Domain Generalized Sidelobe Canceller

International Conference
2006~2010
작성자
한혜원
작성일
2007-07-01 23:08
조회
2369
Authors : Min-Seok Choi, Young-Cheol Park, Hong-Goo Kang

Year : 2007

Publisher / Conference : ICASSP

In this paper, we propose a new soft-decision adaptation mode controller (SD-AMC) for frequency domain generalized sidelobe canceller (GSC) as a speech enhancement system. Contrarily to conventional systems that update filter coefficients in a hard-decision manner using voice activity detection (VAD), the proposed method flexibly controls the step-sizes of adaptive filters depending on the probability of speech presence in each frequency bin. Therefore, it further improves the system performance for various environments without much consideration on noise type and signal to noise ratio (SNR) of input signal. It also improves the robustness of GSC system by avoiding the miss-classification error by the hard-decision logic. Experimental results with speech recognition systems verify that the SD-AMC shows higher performance than ideally designed hard-decision approaches.
전체 369
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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