Title:
NOISE ELIMINATION DEVICE AND NOISE ELIMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/049276
Kind Code:
A1
Abstract:
This noise elimination device comprises: a target sound vector selection unit (103) that selects a target sound steering vector that indicates the direction from which a target sound arrives, from among steering vectors acquired in advance that indicate the directions from which sound arrives to a microphone array (200) provided with two or more acoustic sensors; an interference sound vector selection unit (104) that selects an interference sound steering vector that indicates the direction from which interference sound other than the target sound arrives, from among the steering vectors acquired in advance; and a signal processing unit (105) that, on the basis of two or more observation signals acquired from the microphone array (200), the target sound steering vector, and the interference sound steering vector, acquires a signal in which the interference sound was removed from the observation signals.
Inventors:
TANAKA NOBUAKI (JP)
Application Number:
PCT/JP2017/032311
Publication Date:
March 14, 2019
Filing Date:
September 07, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04R3/00; G10K11/34; H04R1/40
Domestic Patent References:
| WO2017056288A1 | 2017-04-06 | |||
| WO2017094862A1 | 2017-06-08 | |||
| WO2016152511A1 | 2016-09-29 |
Foreign References:
| JP2015046759A | 2015-03-12 | |||
| JP2010091912A | 2010-04-22 | |||
| JP2006243664A | 2006-09-14 | |||
| JP2017090853A | 2017-05-25 | |||
| JP2017107141A | 2017-06-15 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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