Implementation of Steady-State Suppression Using a Digital Signal Processor for Real-Time Processing--Evaluation of the Processing in an Actual Hall (国際ワークショップ Frontiers in Speech and Hearing Research)

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概要

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• In an actual hall, reverberation degrades speech intelligibility, which is the result of overlap-masking occurred when segments of an acoustic signal are affected by reverberation components of previous segments. Arai et al. (2001, 2002) have been proposed a pre-processing technique which suppresses steady-state portion of speech in order to prevent the result of overlap-masking. However, the originally proposed technique is not suitable for real-time processing. Therefore, Arai et al. (2003) suggested alternative technique based on the First Fourier Transform (FFT) with cepstral analysis in order to implement real-time processing. In this study, we successfully implemented the real-time processing of steady-state suppression based on the FFT with a digital signal processor (DSP) (Goto et al., 2005). Also, the effectiveness of the real-time processing implemented with a DSP was evaluated for younger as well as elderly people in an actual reverberant environment.

• 社団法人電子情報通信学会の論文
• 2006-03-20

著者

• TAKAHASHI Kei

  Department of Food Science and Nutrition, School of Human Cultures, The University of Shiga Prefectu

• Arai Takayuki

  Department of Electrical and Electronics Engineering, Sophia University

• Arai Takayuki

  Dep. Of Information And Communication Sciences Sophia Univ.

• Arai Takayuki

  Department Of Chemistry Faculty Of Engineering Gunma University

• YASU Keiichi

  Department of Electrical and Electronics Engineering, Sophia University

• Yasu Keiichi

  Department Of Electrical And Electronics Engineering Sophia University

• Yasu Keiichi

  Sophia University

• Goto Takahito

  Department of Electrical and Electronics Engineering, Sophia University

• Takahashi Kei

  Department Of Electrical And Electronics Engineering Sophia University

• Takahashi Kei

  Department Of Electrical And Electronic Engineering National Defense Academy

• TADOKORO Fumihiro

  Department of Electrical and Electronics Engineering, Sophia University

• Goto Takahito

  Department Of Electrical And Electronics Engineering Sophia University

• Tadokoro Fumihiro

  Department Of Electrical And Electronics Engineering Sophia University

• Takahashi Kei

  Department of Applied Chemistry, School of Science and Engineering, Waseda University

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