GB2019695B - Ambient sound reduction - Google Patents
Ambient sound reductionInfo
- Publication number
- GB2019695B GB2019695B GB7911127A GB7911127A GB2019695B GB 2019695 B GB2019695 B GB 2019695B GB 7911127 A GB7911127 A GB 7911127A GB 7911127 A GB7911127 A GB 7911127A GB 2019695 B GB2019695 B GB 2019695B
- Authority
- GB
- United Kingdom
- Prior art keywords
- ambient sound
- sound reduction
- reduction
- ambient
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3011—Single acoustic input
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3212—Actuator details, e.g. composition or microstructure
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2814093A DE2814093C2 (en) | 1978-04-01 | 1978-04-01 | Anti-noise generator |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2019695A GB2019695A (en) | 1979-10-31 |
GB2019695B true GB2019695B (en) | 1982-09-02 |
Family
ID=6035916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7911127A Expired GB2019695B (en) | 1978-04-01 | 1979-03-30 | Ambient sound reduction |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2814093C2 (en) |
FR (1) | FR2421527A1 (en) |
GB (1) | GB2019695B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57208891A (en) * | 1981-06-17 | 1982-12-22 | Yaskawa Electric Mfg Co Ltd | Control system of motor driven machine |
NO851699L (en) * | 1985-04-29 | 1986-10-30 | Knut Boenke | PROCEDURE AND DEVICE FOR MUTING SOUND AND Acoustic Noise. |
GB8704314D0 (en) * | 1987-02-24 | 1987-04-01 | Scient Generics Ltd | Noise attenuation |
JPS647797A (en) * | 1987-06-30 | 1989-01-11 | Bridgestone Corp | Sound insulation device |
FR2632474B1 (en) * | 1988-06-01 | 1991-04-26 | Saint Louis Inst | DEVICE FOR ACTIVE MITIGATION OF VIBRATION AND IN PARTICULAR NOISE WITHOUT ACOUSTIC DELAY |
DE4133407C2 (en) * | 1991-10-09 | 1994-01-20 | Deutsche Aerospace | Arrangement for compensating the sound emitted by a vibrating wall |
GB2260874A (en) * | 1991-10-21 | 1993-04-28 | Marconi Gec Ltd | A sound control device |
GB2267411A (en) * | 1992-05-26 | 1993-12-01 | Mark John Snee | Noise reducing earphone with combined microphone/loudspeaker |
GB2312972B (en) * | 1996-05-11 | 2000-02-09 | Marconi Gec Ltd | Vibration control |
FI963988A0 (en) | 1996-10-04 | 1996-10-04 | Kari Johannes Kirjavainen | Ljud- och vibrationsisoleringsfoerfarande |
US6151396A (en) * | 1997-03-18 | 2000-11-21 | Daimlerchrysler Ag | Active acoustic resonator for abating noise |
EP1630788B1 (en) | 2004-08-26 | 2012-04-18 | Airbus Operations GmbH | Device and method for reducing sound of a noise source in narrow frequency ranges |
DE102004041214B4 (en) * | 2004-08-26 | 2006-07-06 | Helmut-Schmidt-Universität Universität der Bundeswehr Hamburg | Sound reduction device for noise source in aircraft cabin has electroacoustic transducer comprising suspended membrane having spring stiffness and adjustment unit arranged to change spring stiffness |
DE202014008783U1 (en) | 2014-11-05 | 2014-12-12 | Gunter Henkel | Sleep hood - Device for reducing or eliminating snoring and sleeping sounds |
DE102014016397A1 (en) | 2014-11-05 | 2016-05-12 | Gunter Henkel | Sleep hood: Device for reducing or eliminating snoring and sleeping sounds |
DE102018209043A1 (en) | 2018-06-07 | 2019-12-12 | Zf Friedrichshafen Ag | Evaluation device, sound transducer, vehicle, method and computer program product for damping noise components in noise outside the vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098730B (en) * | 1957-07-01 | 1961-02-02 | Licentia Gmbh | Device for dampening the noise emitted by the housing |
DE1918741A1 (en) * | 1969-04-12 | 1970-10-15 | Messerschmitt Boelkow Blohm | Soundproofing by sound grille |
GB1500002A (en) * | 1975-05-22 | 1978-02-08 | Plessey Co Ltd | Transducer circuit arrangements |
-
1978
- 1978-04-01 DE DE2814093A patent/DE2814093C2/en not_active Expired
-
1979
- 1979-03-30 FR FR7908099A patent/FR2421527A1/en not_active Withdrawn
- 1979-03-30 GB GB7911127A patent/GB2019695B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2814093B1 (en) | 1979-08-23 |
DE2814093C2 (en) | 1980-05-14 |
FR2421527A1 (en) | 1979-10-26 |
GB2019695A (en) | 1979-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |