Title:
【発明の名称】適応ビームフォーミングと結合される音声エコーキャンセレーションのための方法と装置
Document Type and Number:
Japanese Patent JP2003535510
Kind Code:
A
Abstract:
A method is described, wherein multiple input signals are subjected to a combination process of adaptive beamforming and adaptive echo cancelling, and wherein for each of the input signals an individual processing history of adaptive echo cancelling data is kept and combined with current adaptive beamforming data. Accordingly an audio processing device is described which comprises at least one parallel acoustic paths for providing respective inputs signals, the acoustic paths are connected in series to beamformer paths, and the device comprises an adaptive beamformer and an adaptive echo canceller for performing adaptive beamforming and adaptive echo cancelling respectively, whereby the adaptive echo canceller is provided with storage means for storing in relation to every input signal, individual processing histories of adaptive echo cancelling data for combination with current adaptive beamforming data. Both beamformer and echo cancelling techniques can be combined such that a reduced number of calculations results.
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Inventors:
Belt, Halm Yeah Way
Yance, Cornelis Pa
Yance, Cornelis Pa
Application Number:
JP2001588218A
Publication Date:
November 25, 2003
Filing Date:
May 04, 2001
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
G10L15/20; G10L15/00; G10L15/28; G10L17/00; G10L17/02; G10L21/02; G10L21/0208; H04B3/23; H04M1/00; H04M1/60; H04M9/08; (IPC1-7): H04B3/23; G10L15/00; G10L15/20; G10L15/28; G10L17/00; G10L21/02; H04M1/00; H04M1/60
Attorney, Agent or Firm:
Tadahiko Ito