Title:
CODING APPARATUS AND CODING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/203471
Kind Code:
A1
Abstract:
A sound source deduction unit (101) deduces an area where a sound source is present, by using a second mesh size larger than a first mesh size at a position where the sound source is assumed to be present in sparse sound field decomposition in a space for which the sparse sound field decomposition is to be carried out. A sparse sound field decomposition unit (102) carries out a sparse sound field decomposition process with the first mesh size for an acoustic signal observed by a microphone array within the area of the second mesh size in which the sound source has been deduced to be present in the space, and decomposes the acoustic signal into a sound source signal and an ambient noise signal.
Inventors:
EHARA HIROYUKI (JP)
KAWAMURA AKIHISA
WU KAI
NAGISETTY SRIKANTH
NEO SUA HONG
KAWAMURA AKIHISA
WU KAI
NAGISETTY SRIKANTH
NEO SUA HONG
Application Number:
PCT/JP2018/015790
Publication Date:
November 08, 2018
Filing Date:
April 17, 2018
Export Citation:
Assignee:
PANASONIC IP CORP AMERICA (US)
International Classes:
G10L19/008; G10L21/0272; G10L25/51
Domestic Patent References:
| WO2011013381A1 | 2011-02-03 | |||
| WO2016014815A1 | 2016-01-28 |
Foreign References:
| JP2016524721A | 2016-08-18 | |||
| JP2015171111A | 2015-09-28 | |||
| JP2008145610A | 2008-06-26 | |||
| JP2015516093A | 2015-06-04 |
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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