Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique (Special Section on Advanced Signal Processing Techniques for Analysis of Acoustical and Vibrational Signals)

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概要

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• This paper proposes a method of improving the accuracy of the attenuation constant estimate obtained by using the cross-spectral technique. In the cross-spectral technique, the envelope of the estimated impulse response is deformed due to the use of a time window. As a result, the estimated impulse response decays more rapidly than the real impulse response does, and the attenuation constant obtained by the estimated impulse response becomes larger than the real value. This paper first describes how the attenuation constant changes in the process of impulse response estimation. Next, we propose a method of improving the accuracy of the estimation. The effect of the proposed method is confirmed by computer simulation.

• 社団法人電子情報通信学会の論文
• 1999-04-25

著者

• Fukushima Manabu

  Chiba Institute Of Technology

• Yanagawa Hirofumi

  Chiba Institute of Technology

• OKUNO Takatoshi

  Kogakuin University

• Okuno T

  Kogakuin University

関連論文

• Adaptive Cross-Spectral Technique for Acoustic Echo Cancellation (Special Section on Advanced Signal Processing Techniques for Analysis of Acoustical and Vibrational Signals)
• A noise-robust speech recognition system making use of body-conducted signals
• Improvement of the Accuracy in Attenuation Constant Estimation Using the Cross-Spectral Technique (Special Section on Advanced Signal Processing Techniques for Analysis of Acoustical and Vibrational Signals)
• A method of interpolating binaural impulse responses for moving sound images

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