Title:
SOUND SOURCE DIRECTION ESTIMATION DEVICE, SOUND SOURCE DIRECTION ESTIMATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/187589
Kind Code:
A1
Abstract:
The present invention makes it possible to perform, with high accuracy, sound source direction estimations for a plurality of sound sources when using two microphones. To do so, the inter-channel phase difference in each frequency band of a microphone pair consisting of two microphones separated and set at a prescribed distance from each other is calculated. For each frequency band of the microphone pair, a single sound source mask, which indicates whether or not a component in said frequency band is from a single sound source, is also calculated. In addition, the calculated inter-channel phase difference and the single sound source mask are input as feature amounts into a multi-label classifier, and a direction label associated with a sound source direction is output for said feature amounts.
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Inventors:
HIROE ATSUO (JP)
Application Number:
PCT/JP2019/002811
Publication Date:
October 03, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G10L25/51; G10L21/0308; G10L25/30
Foreign References:
| JP2007198977A | 2007-08-09 | |||
| JP2013238520A | 2013-11-28 |
Other References:
MOHAN, SATISH: "Localization of multiple acoustic sources with small arrays using a coherence test", THE JOURNAL OF THE ACOUSTIC SOCIETY OF AMERICA, vol. 123, 1 April 2008 (2008-04-01), pages 2136 - 2147, XP055641100
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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