Title:
SOUND SOURCE DIRECTION ESTIMATING DEVICE AND METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/073804
Kind Code:
A1
Abstract:
This technology relates to a sound source direction estimating device and method, and a program which enable a reduction in the amount of calculation required to estimate the direction of a target sound source.
A first estimating unit estimates a first horizontal angle, which is the horizontal angle of a sound source direction, from an input acoustic signal. A second estimating unit estimates a second horizontal angle, which is the horizontal angle of the sound source direction, and an angle of elevation, in a prescribed range in the vicinity of the first horizontal angle, with reference to the first horizontal angle. This technology is applicable to devices having the function of estimating the direction in which a sound is emitted, in a case in which the sound is emitted from a sound source (such as a person) in a surrounding area.
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Inventors:
OCHIAI KAZUKI (JP)
TAKAHASHI SHUSUKE (JP)
TAKAHASHI AKIRA (JP)
TATEISHI KAZUYA (JP)
TAKAHASHI SHUSUKE (JP)
TAKAHASHI AKIRA (JP)
TATEISHI KAZUYA (JP)
Application Number:
PCT/JP2018/035843
Publication Date:
April 18, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G01S3/802
Foreign References:
| JP2010243376A | 2010-10-28 | |||
| JP2015050610A | 2015-03-16 | |||
| JP2014059180A | 2014-04-03 | |||
| US20120076316A1 | 2012-03-29 |
Other References:
OKAMURA, ATSUSHI ET AL.: "Direction Finding by Spatial Smoothing Super Resolution Algorithm Using Window Functions for Array Interpolation", IEICE TRANSACTIONS B., vol. J82 - B, no. 6, June 1999 (1999-06-01), pages 1185 - 1192, ISSN: 1344-4697
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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