GB2126837B - Noise suppression - Google Patents
Noise suppressionInfo
- Publication number
- GB2126837B GB2126837B GB08322281A GB8322281A GB2126837B GB 2126837 B GB2126837 B GB 2126837B GB 08322281 A GB08322281 A GB 08322281A GB 8322281 A GB8322281 A GB 8322281A GB 2126837 B GB2126837 B GB 2126837B
- Authority
- GB
- United Kingdom
- Prior art keywords
- noise suppression
- suppression
- noise
- 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
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
-
- 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
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
- G10K2210/1082—Microphones, e.g. systems using "virtual" 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
-
- 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
- G10K2210/10—Applications
- G10K2210/123—Synchrophasors or other applications where multiple noise sources are driven with a particular phase relationship
-
- 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
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1281—Aircraft, e.g. spacecraft, airplane or helicopter
-
- 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
- G10K2210/50—Miscellaneous
- G10K2210/511—Narrow band, e.g. implementations for single frequency cancellation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08322281A GB2126837B (en) | 1982-08-19 | 1983-08-18 | Noise suppression |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8223893 | 1982-08-19 | ||
GB08322281A GB2126837B (en) | 1982-08-19 | 1983-08-18 | Noise suppression |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8322281D0 GB8322281D0 (en) | 1983-09-21 |
GB2126837A GB2126837A (en) | 1984-03-28 |
GB2126837B true GB2126837B (en) | 1986-07-23 |
Family
ID=26283639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08322281A Expired GB2126837B (en) | 1982-08-19 | 1983-08-18 | Noise suppression |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2126837B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105989830A (en) * | 2015-03-20 | 2016-10-05 | 雅马哈株式会社 | Sound masking apparatus and sound masking method |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8615315D0 (en) * | 1986-06-23 | 1986-07-30 | Secr Defence | Aircraft cabin noise control apparatus |
GB2203016A (en) * | 1986-10-07 | 1988-10-05 | Adaptive Control Ltd | Active sound control apparatus |
GB2222053B (en) * | 1988-08-17 | 1993-03-31 | Topexpress Ltd | Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise |
GB8820922D0 (en) * | 1988-09-06 | 1988-10-05 | Topexpress Ltd | Noise reduction in vehicles cabins |
JPH0778680B2 (en) * | 1989-07-24 | 1995-08-23 | 日産自動車株式会社 | Vehicle interior noise reduction device |
JP2748626B2 (en) * | 1989-12-29 | 1998-05-13 | 日産自動車株式会社 | Active noise control device |
GB2255256B (en) * | 1991-04-12 | 1994-11-02 | W S Atkins Engineering Science | Method of and apparatus for reducing vibrations |
JP2530779B2 (en) * | 1991-09-05 | 1996-09-04 | 株式会社日立製作所 | Noise reduction device |
US5386689A (en) * | 1992-10-13 | 1995-02-07 | Noises Off, Inc. | Active gas turbine (jet) engine noise suppression |
WO1994029845A1 (en) * | 1993-06-11 | 1994-12-22 | Caterpillar Inc. | Top speaker mounting for active noise cancellation |
US5478199A (en) * | 1994-11-28 | 1995-12-26 | General Electric Company | Active low noise fan assembly |
US5526292A (en) * | 1994-11-30 | 1996-06-11 | Lord Corporation | Broadband noise and vibration reduction |
US5967863A (en) * | 1998-04-15 | 1999-10-19 | Marchant; Gary R. | Trolling motor |
DE50305274D1 (en) * | 2003-09-02 | 2006-11-16 | Schwaebische Werkzeugmaschinen | Machine tool with active noise reduction |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB547082A (en) * | 1941-04-11 | 1942-08-12 | George Thomas Cain | Improvements in sound receiving apparatus |
GB1199925A (en) * | 1966-09-08 | 1970-07-22 | Midland Transformer Company Lt | Improvements in or relating to Noise Reduction |
DE2009105A1 (en) * | 1970-02-26 | 1971-09-02 | Messerschmitt Boelkow Blohm | Noise reduction in propeller engines |
GB1577322A (en) * | 1976-05-13 | 1980-10-22 | Bearcroft R | Active attenuation of recurring vibrations |
US4654871A (en) * | 1981-06-12 | 1987-03-31 | Sound Attenuators Limited | Method and apparatus for reducing repetitive noise entering the ear |
GB2107960B (en) * | 1981-10-21 | 1985-09-18 | George Brian Barrie Chaplin | Method and apparatus for cancelling vibrations |
-
1983
- 1983-08-18 GB GB08322281A patent/GB2126837B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105989830A (en) * | 2015-03-20 | 2016-10-05 | 雅马哈株式会社 | Sound masking apparatus and sound masking method |
Also Published As
Publication number | Publication date |
---|---|
GB2126837A (en) | 1984-03-28 |
GB8322281D0 (en) | 1983-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990818 |