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- W2136606210 abstract "본 논문에서는 음성신호를 개선할 목적으로 잡음으로 오염된 음성신호로부터 잡음성분을 제거하기 위한 위너 필터를 사용한 잡음제거 알고리즘을 제안한다. 제안한 알고리즘은 먼저 잡음 복원 및 제거 방법에 기초하여 잡음으로 오염된 신호로부터 각 프레임에서 백색잡음의 잡음 스펙트럼을 제거한다. 또한 본 알고리즘은 선형예측 분석 방법에 기초한 위너 필터를 사용하여 음성신호를 강조한다. 본 실험에서는 일본 남성화자에 의한 음성과 잡음데이터를 사용하여 본 알고리즘의 실험 결과를 나타낸다. 백색잡음에 의하여 오염된 음성신호에 대하여 스펙트럼 왜곡률 척도를 사용하여 본 알고리즘이 유효하다는 것을 확인한다. 실험으로부터 백색잡음에 대하여 이전의 위너 필터와 비교하여 최대 4.94 dB의 출력 스펙트럼 왜곡률이 개선된 것을 확인할 수 있었다. This paper proposes a noise reduction algorithm using Wiener filter to remove the noise components from the noisy speech in order to improve the speech signal. The proposed algorithm first removes the noise spectrums of white noise from the noisy signal based on the noise reshaping and reduction method at each frame. And this algorithm enhances the speech signal using Wiener filter based on linear predictive coding analysis. In this experiment, experimental results of the proposed algorithm demonstrate using the speech and noise data by Japanese male speaker. Based on measuring the spectral distortion (SD) measure, experiments confirm that the proposed algorithm is effective for the speech by contaminated white noise. From the experiments, the maximum improvement in the output SD values was 4.94 dB better for white noise compared with former Wiener filter." @default.
- W2136606210 created "2016-06-24" @default.
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- W2136606210 date "2013-09-30" @default.
- W2136606210 modified "2023-09-26" @default.
- W2136606210 title "Noise Reduction Algorithm in Speech by Wiener Filter" @default.
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- W2136606210 doi "https://doi.org/10.13067/jkiecs.2013.8.9.1293" @default.
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