DK1133899T3 - Binaural signal processing techniques - Google Patents
Binaural signal processing techniquesInfo
- Publication number
- DK1133899T3 DK1133899T3 DK99958975T DK99958975T DK1133899T3 DK 1133899 T3 DK1133899 T3 DK 1133899T3 DK 99958975 T DK99958975 T DK 99958975T DK 99958975 T DK99958975 T DK 99958975T DK 1133899 T3 DK1133899 T3 DK 1133899T3
- Authority
- DK
- Denmark
- Prior art keywords
- signal
- processor
- signals
- spectral
- sensors
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/552—Binaural
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Stereophonic Arrangements (AREA)
Abstract
A desired acoustic signal is extracted from a noisy environment by generating a signal representative of the desired signal with processor (30). Processor (30) receives aural signals from two sensors (22, 24) each at a different location. The two inputs to processor (30) are converted from analog to digital format and then submitted to a discrete Fourier transform process to generate discrete spectral signal representations. The spectral signals are delayed to provide a number of intermediate signals, each corresponding to a different spatial location relative to the two sensors. Locations of the noise source and the desired source, and the spectral content of the desired signal are determined fron the intermediate signal corresponding to the noise source locations. Inverse transformation of the selected intermediate signal followed by digital to analog conversion provides an output signal representative of the desired signal with output device (90). Techniques to localize multiple acoustic sources are also disclosed. Further, a technique to enhance noise reduction from multiple sources based on two-sensor reception is described.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/193,058 US6987856B1 (en) | 1996-06-19 | 1998-11-16 | Binaural signal processing techniques |
PCT/US1999/026965 WO2000030404A1 (en) | 1998-11-16 | 1999-11-16 | Binaural signal processing techniques |
Publications (1)
Publication Number | Publication Date |
---|---|
DK1133899T3 true DK1133899T3 (en) | 2009-01-12 |
Family
ID=22712122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK99958975T DK1133899T3 (en) | 1998-11-16 | 1999-11-16 | Binaural signal processing techniques |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1133899B1 (en) |
JP (1) | JP3745227B2 (en) |
CN (1) | CN1333994A (en) |
AT (1) | ATE404028T1 (en) |
AU (1) | AU748113B2 (en) |
CA (1) | CA2348894C (en) |
DE (1) | DE69939272D1 (en) |
DK (1) | DK1133899T3 (en) |
WO (1) | WO2000030404A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7206423B1 (en) | 2000-05-10 | 2007-04-17 | Board Of Trustees Of University Of Illinois | Intrabody communication for a hearing aid |
ITMI20020566A1 (en) * | 2002-03-18 | 2003-09-18 | Daniele Ramenzoni | DEVICE TO CAPTURE EVEN SMALL MOVEMENTS IN THE AIR AND IN FLUIDS SUITABLE FOR CYBERNETIC AND LABORATORY APPLICATIONS AS TRANSDUCER |
US7433821B2 (en) * | 2003-12-18 | 2008-10-07 | Honeywell International, Inc. | Methods and systems for intelligibility measurement of audio announcement systems |
JP4580210B2 (en) | 2004-10-19 | 2010-11-10 | ソニー株式会社 | Audio signal processing apparatus and audio signal processing method |
US8184827B2 (en) * | 2006-11-09 | 2012-05-22 | Panasonic Corporation | Sound source position detector |
JP4854533B2 (en) * | 2007-01-30 | 2012-01-18 | 富士通株式会社 | Acoustic judgment method, acoustic judgment device, and computer program |
WO2009135532A1 (en) * | 2008-05-09 | 2009-11-12 | Nokia Corporation | An apparatus |
US20100074460A1 (en) * | 2008-09-25 | 2010-03-25 | Lucent Technologies Inc. | Self-steering directional hearing aid and method of operation thereof |
WO2010051606A1 (en) * | 2008-11-05 | 2010-05-14 | Hear Ip Pty Ltd | A system and method for producing a directional output signal |
US20110096941A1 (en) * | 2009-10-28 | 2011-04-28 | Alcatel-Lucent Usa, Incorporated | Self-steering directional loudspeakers and a method of operation thereof |
DE102009052992B3 (en) | 2009-11-12 | 2011-03-17 | Institut für Rundfunktechnik GmbH | Method for mixing microphone signals of a multi-microphone sound recording |
CN102111697B (en) * | 2009-12-28 | 2015-03-25 | 歌尔声学股份有限公司 | Method and device for controlling noise reduction of microphone array |
CN102771144B (en) * | 2010-02-19 | 2015-03-25 | 西门子医疗器械公司 | Apparatus and method for direction dependent spatial noise reduction |
EP2709101B1 (en) * | 2012-09-13 | 2015-03-18 | Nxp B.V. | Digital audio processing system and method |
JP6107151B2 (en) | 2013-01-15 | 2017-04-05 | 富士通株式会社 | Noise suppression apparatus, method, and program |
CN105307095B (en) * | 2015-09-15 | 2019-09-10 | 中国电子科技集团公司第四十一研究所 | A kind of high definition audio frequency measurement method based on FFT |
CN108727363B (en) * | 2017-04-19 | 2020-06-19 | 劲方医药科技(上海)有限公司 | Novel cyclin dependent kinase CDK9 inhibitor |
CN109493877B (en) * | 2017-09-12 | 2022-01-28 | 清华大学 | Voice enhancement method and device of hearing aid device |
US11074906B2 (en) * | 2017-12-07 | 2021-07-27 | Hed Technologies Sarl | Voice aware audio system and method |
CN111435598B (en) * | 2019-01-15 | 2023-08-18 | 北京地平线机器人技术研发有限公司 | Voice signal processing method, device, computer readable medium and electronic equipment |
CN112190259B (en) * | 2020-09-10 | 2024-06-28 | 北京济声科技有限公司 | Method for testing sound source positioning capability, tester terminal and subject terminal |
CN114624652B (en) * | 2022-03-16 | 2022-09-30 | 浙江浙能技术研究院有限公司 | Sound source positioning method under strong multipath interference condition |
CN117031397B (en) * | 2023-10-07 | 2023-12-12 | 成都流体动力创新中心 | Quick calculation method for positioning and evaluating noise source of moving object |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6223300A (en) * | 1985-07-23 | 1987-01-31 | Victor Co Of Japan Ltd | Directional microphone equipment |
US5029216A (en) * | 1989-06-09 | 1991-07-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Visual aid for the hearing impaired |
US5400409A (en) * | 1992-12-23 | 1995-03-21 | Daimler-Benz Ag | Noise-reduction method for noise-affected voice channels |
US5473701A (en) * | 1993-11-05 | 1995-12-05 | At&T Corp. | Adaptive microphone array |
US6130949A (en) * | 1996-09-18 | 2000-10-10 | Nippon Telegraph And Telephone Corporation | Method and apparatus for separation of source, program recorded medium therefor, method and apparatus for detection of sound source zone, and program recorded medium therefor |
JP2001520821A (en) * | 1997-04-14 | 2001-10-30 | レイマー シグナル プロセシング リミテッド | Apparatus and method for canceling double processing interference noise |
-
1999
- 1999-11-16 WO PCT/US1999/026965 patent/WO2000030404A1/en active IP Right Grant
- 1999-11-16 JP JP2000583297A patent/JP3745227B2/en not_active Expired - Fee Related
- 1999-11-16 AU AU16240/00A patent/AU748113B2/en not_active Ceased
- 1999-11-16 DE DE69939272T patent/DE69939272D1/en not_active Expired - Lifetime
- 1999-11-16 DK DK99958975T patent/DK1133899T3/en active
- 1999-11-16 AT AT99958975T patent/ATE404028T1/en not_active IP Right Cessation
- 1999-11-16 CN CN99815559.4A patent/CN1333994A/en active Pending
- 1999-11-16 EP EP99958975A patent/EP1133899B1/en not_active Expired - Lifetime
- 1999-11-16 CA CA002348894A patent/CA2348894C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE404028T1 (en) | 2008-08-15 |
AU748113B2 (en) | 2002-05-30 |
JP3745227B2 (en) | 2006-02-15 |
CA2348894A1 (en) | 2000-05-22 |
EP1133899A1 (en) | 2001-09-19 |
EP1133899B1 (en) | 2008-08-06 |
WO2000030404A1 (en) | 2000-05-25 |
CN1333994A (en) | 2002-01-30 |
JP2002530966A (en) | 2002-09-17 |
DE69939272D1 (en) | 2008-09-18 |
CA2348894C (en) | 2007-09-25 |
AU1624000A (en) | 2000-06-05 |
EP1133899A4 (en) | 2003-09-03 |
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