Optimal Gain Filter Design for Perceptual Acoustic Echo Suppressor

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概要

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• This Letter proposes an optimal gain filter for the perceptual acoustic echo suppressor. We designed an optimally-modified log-spectral amplitude estimation algorithm for the gain filter in order to achieve robust suppression of echo and noise. A new parameter including information about interferences (echo and noise) of single-talk duration is statistically analyzed, and then the speech absence probability and the a posteriori SNR are judiciously estimated to determine the optimal solution. The experiments show that the proposed gain filter attains a significantly improved reduction of echo and noise with less speech distortion.

• （社）電子情報通信学会の論文
• 2009-06-01

著者

• Ko Hanseok

  Department Of Electronics And Computer Engineering Korea University

• KIM Kihyeon

  Department of Electronics and Computer Engineering, Korea University

• Kim Kihyeon

  Department Of Electronics And Computer Engineering Korea University

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