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Title:
SOUND CONTROL DEVICE, SOUND CONTROL SYSTEM, AND SOUND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/010006
Kind Code:
A1
Abstract:
A sound control device, wherein a collected sound signal input unit (31) accepts input of a collected sound signal of the sounds collected in a prescribed space. The collected sound signal includes a content reproduction signal that is the sound signal of the content outputted from at least one of a plurality of speakers. A frequency determination unit (12) determines a cut-off frequency on the basis of the content reproduction signal and a noise signal. A bandwidth control unit (13) acquires, from a sound-source signal, a high-tone signal of frequency bands higher than or equal to the cut-off frequency and a low-tone signal of frequency bands lower than or equal to the cut-off frequency. Sound output units (21, 22) output the low-tone signal to a first speaker (51) and output the high-tone signal to a second speaker (52) that is more suitable for high-tone output than is the first speaker (51).

Inventors:
ARAKI JUNJI
ABE SATOSHI
YAMAGUCHI TAKAHIRO
KUBOTA KENICHI
Application Number:
PCT/JP2020/019149
Publication Date:
January 21, 2021
Filing Date:
May 13, 2020
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R3/12; G10K11/178; G10K15/00
Foreign References:
JP2008271067A2008-11-06
JP2003092799A2003-03-28
JP2016100613A2016-05-30
JP2013142735A2013-07-22
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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