BR112015014626A2 - método, aparelho e sistema para calibração de arranjo de microfones - Google Patents
método, aparelho e sistema para calibração de arranjo de microfonesInfo
- Publication number
- BR112015014626A2 BR112015014626A2 BR112015014626A BR112015014626A BR112015014626A2 BR 112015014626 A2 BR112015014626 A2 BR 112015014626A2 BR 112015014626 A BR112015014626 A BR 112015014626A BR 112015014626 A BR112015014626 A BR 112015014626A BR 112015014626 A2 BR112015014626 A2 BR 112015014626A2
- Authority
- BR
- Brazil
- Prior art keywords
- microphone
- array
- microphones
- audio
- target
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 abstract 2
Classifications
-
- 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
- G10L21/0224—Processing in the time domain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
- H04R29/005—Microphone arrays
-
- 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
- G10L2021/02087—Noise filtering the noise being separate speech, e.g. cocktail party
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
- H04R2410/01—Noise reduction using microphones having different directional characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
- H04R2430/23—Direction finding using a sum-delay beam-former
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
resumo método, aparelho e sistema para calibração de arranjo de microfones trata-se de um método, aparelho e sistema para calibração de arranjo de microfones que incluem gravar áudio usando pelo menos dois microfones, que compreende um arranjo de microfones, usar um microfone alvo do arranjo de microfones, determinar um fator de atenuação para um áudio originário a partir de respectivos locais de outros microfones do arranjo de microfones, usar um mi-crofone alvo do arranjo de microfones, determinar um fator de retardo para um áudio originário a partir de respectivos locais de outros microfones do arranjo de microfones e implementar o fator de atenuação e o fator de retardo determinados para remover um áudio originário a partir de respectivos locais dos outros microfones do arranjo de microfones a partir de um sinal de áudio capturado pelo microfone alvo. então, o método, aparelho e sistema incluem, ainda, remover um áudio originário a partir de respectivos locais dos outros microfones do arranjo de microfones a partir de um sinal de áudio capturado pelo microfone alvo usando técnicas de formação de feixe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2012/072083 WO2014105052A1 (en) | 2012-12-28 | 2012-12-28 | Method, apparatus and system for microphone array calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112015014626A2 true BR112015014626A2 (pt) | 2017-07-11 |
Family
ID=47631703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112015014626A BR112015014626A2 (pt) | 2012-12-28 | 2012-12-28 | método, aparelho e sistema para calibração de arranjo de microfones |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20150332705A1 (pt) |
| EP (1) | EP2939236A1 (pt) |
| JP (1) | JP2016506183A (pt) |
| KR (1) | KR20150103001A (pt) |
| CN (1) | CN104937663A (pt) |
| BR (1) | BR112015014626A2 (pt) |
| CA (1) | CA2894836A1 (pt) |
| WO (1) | WO2014105052A1 (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10365763B2 (en) * | 2016-04-13 | 2019-07-30 | Microsoft Technology Licensing, Llc | Selective attenuation of sound for display devices |
| CN107180642B (zh) * | 2017-07-20 | 2020-12-18 | 北京华捷艾米科技有限公司 | 音频信号校正方法、装置及设备 |
| KR102460491B1 (ko) | 2017-12-06 | 2022-10-31 | 삼성전자주식회사 | 전자 장치 및 그의 제어 방법 |
| CN109935237A (zh) * | 2017-12-19 | 2019-06-25 | 展讯通信（上海）有限公司 | 多移动终端的mic阵列自校准方法、装置及服务器 |
| US10616682B2 (en) | 2018-01-12 | 2020-04-07 | Sorama | Calibration of microphone arrays with an uncalibrated source |
| CN110049424B (zh) * | 2019-05-16 | 2021-02-02 | 苏州静声泰科技有限公司 | 一种基于检测gil故障声的麦克风阵列无线校准方法 |
| US20230274753A1 (en) * | 2022-02-25 | 2023-08-31 | Bose Corporation | Voice activity detection |
| CN115776626B (zh) * | 2023-02-10 | 2023-05-02 | 杭州兆华电子股份有限公司 | 一种麦克风阵列的频响校准方法及系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2375698A (en) * | 2001-02-07 | 2002-11-20 | Canon Kk | Audio signal processing apparatus |
| US20050030374A1 (en) * | 2001-09-06 | 2005-02-10 | Yoel Goldenberg | Recording and quality management solutions for walk-in environments |
| US20070050441A1 (en) * | 2005-08-26 | 2007-03-01 | Step Communications Corporation,A Nevada Corporati | Method and apparatus for improving noise discrimination using attenuation factor |
| WO2014062152A1 (en) * | 2012-10-15 | 2014-04-24 | Mh Acoustics, Llc | Noise-reducing directional microphone array |
-
2012
- 2012-12-28 US US14/650,887 patent/US20150332705A1/en not_active Abandoned
- 2012-12-28 EP EP12821093.7A patent/EP2939236A1/en not_active Withdrawn
- 2012-12-28 JP JP2015550370A patent/JP2016506183A/ja not_active Withdrawn
- 2012-12-28 CA CA2894836A patent/CA2894836A1/en not_active Abandoned
- 2012-12-28 CN CN201280077799.3A patent/CN104937663A/zh active Pending
- 2012-12-28 WO PCT/US2012/072083 patent/WO2014105052A1/en active Application Filing
- 2012-12-28 BR BR112015014626A patent/BR112015014626A2/pt not_active IP Right Cessation
- 2012-12-28 KR KR1020157016875A patent/KR20150103001A/ko not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US20150332705A1 (en) | 2015-11-19 |
| CA2894836A1 (en) | 2014-07-03 |
| CN104937663A (zh) | 2015-09-23 |
| EP2939236A1 (en) | 2015-11-04 |
| JP2016506183A (ja) | 2016-02-25 |
| WO2014105052A1 (en) | 2014-07-03 |
| KR20150103001A (ko) | 2015-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] | ||
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |