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1. WO2016148379 - SOUND SOURCE DIRECTION ESTIMATION SYSTEM AND METHOD

Publication Number WO/2016/148379
Publication Date 22.09.2016
International Application No. PCT/KR2015/013745
International Filing Date 15.12.2015
IPC
H04R 1/40 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
G10L 15/28 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
28Constructional details of speech recognition systems
H04R 3/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers
CPC
G10L 15/28
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
15Speech recognition
28Constructional details of speech recognition systems
H04R 1/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
H04R 3/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
Applicants
  • 동국대학교 산학협력단 DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION [KR]/[KR]
Inventors
  • 김건욱 KIM, Keon Wook
Agents
  • 두호특허법인 DOOHO IP LAW FIRM
Priority Data
10-2015-003763818.03.2015KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) SOUND SOURCE DIRECTION ESTIMATION SYSTEM AND METHOD
(FR) SYSTÈME ET PROCÉDÉ D'ESTIMATION DE DIRECTION DE SOURCE SONORE
(KO) 음원 방향 추정 시스템 및 방법
Abstract
(EN)
A sound source direction estimation system and method are provided. The sound source direction estimation system according to one embodiment of the present invention comprises: a resonance induction module having a plurality of resonance induction cells, which extend in multiple directions and have different extension lengths, thereby changing a frequency pattern of a sound signal according to a direction of a sound source; a conversion module for converting the sound signal, which has passed through the resonance induction module, into a digital signal; and an estimation module for estimating the direction of the sound source by analyzing a frequency pattern of the digital signal.
(FR)
L'invention concerne un système et un procédé d'estimation de direction de source sonore. Le système d'estimation de direction de source sonore selon un mode de réalisation de la présente invention comprend : un module d'induction de résonance ayant une pluralité de cellules d'induction de résonance qui s'étendent dans une pluralité de directions et ont des longueurs d'extension différentes, ce qui permet de modifier un motif de fréquence d'un signal sonore d’après une direction d'une source sonore ; un module de conversion pour convertir le signal sonore, qui est passé à travers le module d'induction de résonance, en un signal numérique ; et un module d'estimation pour estimer la direction de la source sonore en analysant un motif de fréquence du signal numérique.
(KO)
음원 방향 추정 시스템 및 방법이 제공된다. 본 발명의 일 실시예에 따른 음원 방향 추정 시스템은, 다방향으로 연장되며 연장 길이가 서로 다른 복수의 공명 유도 셀을 구비함으로써, 음원의 방향에 따라 음향 신호의 주파수 패턴을 변화시키는 공명 유도 모듈; 상기 공명 유도 모듈을 통과한 상기 음향 신호를 디지털 신호로 변환하는 변환 모듈; 및 상기 디지털 신호의 주파수 패턴을 분석하여 상기 음원의 방향을 추정하는 추정 모듈을 포함한다.
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