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Patent Searching and Data


Title:
SOUND PICKUP DEVICE, RECORDING MEDIUM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2018/042773
Kind Code:
A1
Abstract:
[Problem] To suppress musical noise and the like when area sound pickup is performed. [Solution] The present invention relates to a sound pickup device. This sound pickup device is characterized by being provided with: a directivity formation means for forming directivity in a target area direction from an input signal using a beam former; a non-target area sound extraction means for extracting non-target area sound present in the target area direction of the directivity formed by the directivity formation means; and a target area sound enhancement means which inverts the phase of the non-target area sound by applying phase information of the input signal to the non-target area sound extracted by the non-target area sound extraction means and an output of the beam former, and which adds the phase-inverted non-target area sound to the output of the beam former.

Inventors:
KATAGIRI, Kazuhiro (1-7-12, Toranomo, Minato-ku Tokyo 60, 〒1058460, JP)
Application Number:
JP2017/018871
Publication Date:
March 08, 2018
Filing Date:
May 19, 2017
Export Citation:
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Assignee:
OKI ELECTRIC INDUSTRY CO., LTD. (1-7-12, Toranomon Minato-ku Tokyo, 60, 〒1058460, JP)
International Classes:
H04R3/00; G10L21/0208; G10L21/0232; H04R1/40
Foreign References:
JP2014072708A2014-04-21
JP2016127458A2016-07-11
JP2016127459A2016-07-11
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (HAZUKI INTERNATIONAL YOTSUYA, Daiichi Tomizawa Building 3-1-3, Yotsuy, Shinjuku-ku Tokyo 04, 〒1600004, JP)
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