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1. (WO2018042773) SOUND PICKUP DEVICE, RECORDING MEDIUM AND METHOD

Pub. No.:    WO/2018/042773    International Application No.:    PCT/JP2017/018871
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat May 20 01:59:59 CEST 2017
IPC: H04R 3/00
G10L 21/0208
G10L 21/0232
H04R 1/40
Applicants: OKI ELECTRIC INDUSTRY CO., LTD.
沖電気工業株式会社
Inventors: KATAGIRI, Kazuhiro
片桐 一浩
Title: SOUND PICKUP DEVICE, RECORDING MEDIUM AND METHOD
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.