KR100921368B1 - 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별정밀도 개선 시스템 및 방법 - Google Patents
이동형 마이크로폰 어레이를 이용한 소음원 위치 판별정밀도 개선 시스템 및 방법 Download PDFInfo
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- KR100921368B1 KR100921368B1 KR1020070102220A KR20070102220A KR100921368B1 KR 100921368 B1 KR100921368 B1 KR 100921368B1 KR 1020070102220 A KR1020070102220 A KR 1020070102220A KR 20070102220 A KR20070102220 A KR 20070102220A KR 100921368 B1 KR100921368 B1 KR 100921368B1
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- G10L15/00—Speech recognition
- G10L15/20—Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech
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- G—PHYSICS
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/809—Rotating or oscillating beam systems using continuous analysis of received signal for determining direction in the plane of rotation or oscillation or for determining deviation from a predetermined direction in such a plane
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- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
- G10L15/10—Speech classification or search using distance or distortion measures between unknown speech and reference templates
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- G—PHYSICS
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- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02166—Microphone arrays; Beamforming
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Abstract
Description
Claims (5)
- 마이크로폰 어레이 빔 형성 방법(Microphone Array Beamforming Method)을 이용한 소음원 위치 측정 시스템에 있어서,고정점에서 소음을 측정하는 1개의 고정 센서;상기 고정 센서로부터 소정 거리 이격되어 상기 고정 센서를 기준으로 미리 알려진 경로를 따라 이동하면서 다수 개의 측정점에서 소음을 측정하는 다수 개의 이동 센서; 및상기 고정 센서 및 상기 이동 센서들로부터 측정된 소음 데이터를 전송받아 데이터 분석을 수행하는 분석부;를 포함하여 이루어지며, 상기 고정 센서에서 측정된 소음 데이터를 기준으로 상기 다수 개의 이동 센서들에서 측정된 소음 데이터를 동기화하여 소음 측정 결과를 산출하는 것을 특징으로 하는 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별 정밀도 개선 시스템.
- 제 1항에 의한 소음 측정 시스템을 사용하는 소음 측정 방법에 있어서,a) 상기 분석부가 상기 1개의 고정 센서 및 상기 다수 개의 이동 센서들에서 측정된 소음 데이터를 사용하여 조화 평균된 상관 스펙트럼 행렬을 구하는 단계;b) 상기 분석부가 상기 이동 센서들을 새로운 위치로 이동시킨 후 다시 소음 데이터를 측정하고 이를 사용하여 조화 평균된 상관 스펙트럼 행렬()을 구하는 단계를 소정 횟수()만큼 반복하는 단계;를 포함하여 이루어지는 것을 특징으로 하는 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별 정밀도 개선 방법.
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KR1020070102220A KR100921368B1 (ko) | 2007-10-10 | 2007-10-10 | 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별정밀도 개선 시스템 및 방법 |
EP08837260.2A EP2201564B1 (en) | 2007-10-10 | 2008-10-10 | Enhanced sound source localization system and method by using a movable microphone array |
PCT/KR2008/005969 WO2009048291A1 (en) | 2007-10-10 | 2008-10-10 | Enhanced sound source localization system and method by using a movable microphone array |
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KR1020070102220A KR100921368B1 (ko) | 2007-10-10 | 2007-10-10 | 이동형 마이크로폰 어레이를 이용한 소음원 위치 판별정밀도 개선 시스템 및 방법 |
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Cited By (1)
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KR101097296B1 (ko) | 2010-04-30 | 2011-12-22 | 충남대학교산학협력단 | 회전 소음원 측정용 마이크로폰 어레이 시스템 및 상기 마이크로폰 어레이를 이용한 회전 소음원 측정 방법 |
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DE102008029352A1 (de) * | 2008-06-20 | 2009-12-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und Computerprogramm zum Lokalisieren einer Schallquelle |
CN102804808B (zh) | 2009-06-30 | 2015-05-27 | 诺基亚公司 | 用于呈现空间音频的方法及装置 |
JP6703525B2 (ja) * | 2014-09-05 | 2020-06-03 | インターデジタル シーイー パテント ホールディングス | 音源を強調するための方法及び機器 |
CN111948605B (zh) * | 2020-08-12 | 2021-05-11 | 上海交通大学 | 融合渐开线阵列和fpga的便携式噪声源检测装置 |
CN112763058A (zh) * | 2021-01-07 | 2021-05-07 | 国网河南省电力公司电力科学研究院 | 一种自定义坐标阵列噪声信号实时数据分析系统及方法 |
CN113376578A (zh) * | 2021-06-07 | 2021-09-10 | 上海数川数据科技有限公司 | 一种基于到达角度和声音强度匹配的声源定位方法及系统 |
CN114199368B (zh) * | 2021-11-30 | 2024-04-26 | 北京工商大学 | 一种全频带pp声强自动测量装置和测量方法 |
CN118549084B (zh) * | 2024-07-30 | 2024-10-08 | 中国空气动力研究与发展中心低速空气动力研究所 | 一种喷流噪声场的测量方法及连续扫描式传声器测量系统 |
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KR20040079085A (ko) * | 2003-03-06 | 2004-09-14 | 삼성전자주식회사 | 마이크로폰 어레이 구조, 이를 이용한 일정한 지향성을갖는 빔 형성방법 및 장치와 음원방향 추정방법 및 장치 |
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Cited By (1)
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KR101097296B1 (ko) | 2010-04-30 | 2011-12-22 | 충남대학교산학협력단 | 회전 소음원 측정용 마이크로폰 어레이 시스템 및 상기 마이크로폰 어레이를 이용한 회전 소음원 측정 방법 |
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EP2201564A1 (en) | 2010-06-30 |
WO2009048291A1 (en) | 2009-04-16 |
KR20090036919A (ko) | 2009-04-15 |
EP2201564B1 (en) | 2014-12-03 |
EP2201564A4 (en) | 2013-03-06 |
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