A Stereo Echo Canceler with Input Slides and Counter-Lateralization(Digital Signal Processing)

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概要

• 論文の詳細を見る

• A new stereo echo canceler with input slides and counter-lateralization is proposed. Convergence of filter coefficients to the correct echo paths is obtained by pre-processing which delays the input signal periodically by one sample in one of the two channels. The time difference between the two stereo components of the input signals causes a shift of the sound image. This shift is compensated for by presenting the delayed component of the stereo signals to a loudspeaker at a higher intensity, and the other component at a lower intensity. Correct echo-path identification is analytically shown in a more general form than in the preceding literatures. A subjective listening test shows that this method is more effective for vocal musics. The processed signals are scored 0.45 lower than the original input signals, using the ITU-R five-grade impairment scale.

• 社団法人電子情報通信学会の論文
• 2006-06-01

著者

• Sugiyama Akihiko

  Media and Information Research Laboratories, NEC Corporation

• HIRANO Akihiro

  Department of Materials Science, Graduate School of Engineering, The University of Tokyo

• Sugiyama Akihiko

  Media And Information Research Laboratories Nec Corporation

• Faucon Gerard

  Laboratoire De Traitement Du Signal Et De L'image Universite De Rennes

• Hirano A

  Nec Corp. Kawasaki‐shi Jpn

• Hirano Akihiro

  Department Of Information And Systems Engineering Faculty Of Engineering Kanazawa University

• Sugiyama Akihiko

  Nec Corp. Kawasaki‐shi Jpn

• JONCOUR Yann

  IMEC vzw

• NISHITANI Takao

  Department of Systems Design, Tokyo Metropolitan University

• Joncour Y

  Imec Vzw

• Nishitani Takao

  Tokyo Metropolitan Univ. Hino‐shi Jpn

• Nishitani Takao

  Department Of System Design Tokyo Metropolitan University

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