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Adaptive Channel Normalization Based on Infomax Algorithm for Robust Speech Recognition
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  • Adaptive Channel Normalization Based on Infomax Algorithm for Robust Speech Recognition
  • Adaptive Channel Normalization Based on Infomax Algorithm for Robust Speech Recognition
저자명
Jung. Ho-Young
간행물명
ETRI journal
권/호정보
2007년|29권 3호|pp.300-304 (5 pages)
발행정보
한국전자통신연구원
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This paper proposes a new data-driven method for high-pass approaches, which suppresses slow-varying noise components. Conventional high-pass approaches are based on the idea of decorrelating the feature vector sequence, and are trying for adaptability to various conditions. The proposed method is based on temporal local decorrelation using the information-maximization theory for each utterance. This is performed on an utterance-by-utterance basis, which provides an adaptive channel normalization filter for each condition. The performance of the proposed method is evaluated by isolated-word recognition experiments with channel distortion. Experimental results show that the proposed method yields outstanding improvement for channel-distorted speech recognition.