The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2021
Filed:
Nov. 20, 2019
Oki Electric Industry Co., Ltd., Tokyo, JP;
Kazuhiro Katagiri, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a sound pick-up apparatus. The sound pick-up apparatus according to the present invention includes: a unit configured to acquire target direction signals based on beamformer outputs of a plurality of microphone arrays; a unit configured to extract non-target area sound by performing spectral subtraction processing on the acquired target direction signals, and extract target area sound by performing spectral subtraction in a manner that a spectrum of the non-target area sound is subtracted from spectra of the target direction signals; a unit configured to perform target area sound determination processing for determining whether input signals include the target area sound; a unit configured to decide a level adjustment coefficient for adjusting a level of a mixing signal on the basis of an element including a result of the target area sound determination processing; and a unit configured to mix the extracted target area sound with a level-adjusted mixing signal obtained by adjusting the level of the mixing signal with the decided level adjustment coefficient, and output a mixed signal as an area sound pick-up result.