61. Tiscali - Search .home .search .directorios .Science .Technology .Acoustics,_Ultrasound_and_Vibration .Active Noise Control. Sites seleccionados desde la categoría Active http://directory.tiscali.es/Science/Technology/Acoustics,_Ultrasound_and_Vibrati

.home search directorios Science ... Acoustics,_Ultrasound_and_Vibration  .Active Noise Control Sites seleccionados desde la categor­a Active Noise Control Frequently Asked Questions about Active Noise Control Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. ACTIVE 99 Technical Program Program of the 1999 international conference on active noise and vibration control. Active Noise Control for Smart Materials Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation. BoscoItalia S.p.A. certified with ISO 9000, leader in the industrial sound-proofing sector for the past 20 years, plans, builds and implements noise reduction and active noise control systems BoscoItalia S.p.A. (Italy) company in the sector of the industrial noise, noise reduction systems in all industrial fields: aeronautics, motoring, energy, road building and railways. ISVR Active Control Research in active control at the Institute of Sound and Vibration Research of the University of Southampton (UK). Includes an introduction, demonstration and a page of links.

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Search Mathematics Encyclopedia and Lessons Lessons Popular Subjects algebra arithmetic calculus equations ... more References applied mathematics mathematical games mathematicians more ... Noise Active noise control Active noise control (also known as noise cancellation or antinoise ) is a method for preventing unwanted sound . Sound consists of vibrations in the air , which can be represented as a wave . If a speaker emits a sound whose wave has the same amplitude and the exact opposite polarity to the original sound, the waves cancel out and the result is no sound at all. A computer analyses the waveform of the background aural or nonaural noise interference . This waveform has identical or directly proportional amplitude to the waveform of the noise, but its phase is the opposite. This creates destructive interference that reduces the amplitude of the perceived noise. This method differs from passive noise control methods ( sound proofing ) in that a powered system is involved, rather than unpowered methods such as insulation , sound-absorbing ceiling tiles, or automobile mufflers The advantages of active noise control methods compared to passive ones are: they are more effective at low frequencies they are less bulky, something valuable on aircrafts

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Web Directory: Science, Technology, Acoustics, Ultrasound and Vibration, Active Noise Control Top Science Technology Acoustics, Ultrasound and Vibration ... Active Noise Control Search: Web Directory Daily News PHP Manuals mySQL Manuals ... Svenska Mirrors Exim xEmacs CPAN ProFTPD ... XBox Games News Browsing Science, Technology, Acoustics, Ultrasound and Vibration, Active Noise Control Category Enter your search terms Web www.klevze.si www.skinbase.org www.moviestation.org Submit search form See also: Business: Energy and Environment: Environment: Noise and Vibration Control: Products: Control Frequently Asked Questions about Active Noise Control - Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. ACTIVE 99 Technical Program Program of the 1999 international conference on active noise and vibration control.. Active Noise Control for Smart Materials Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation.. BoscoItalia S.p.A. (Italy)

67. Article About "Active Noise Control" In The English Wikipedia On 24-Apr-2004 The Active noise control reference article from the English Wikipedia on 24Apr-2004 (provided by Fixed Reference snapshots of Wikipedia from wikipedia.org http://fixedreference.org/en/20040424/wikipedia/Active_noise_control

The Active noise control reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference : snapshots of Wikipedia from wikipedia.org) Active noise control Active noise control (also known as antinoise ) is a method for preventing unwanted sound . Sound consists of vibrations in the air , which can be represented as a wave . If a speaker emits a sound whose wave is the exact opposite phase to the original sound, the waves cancel out and the result is no sound at all. A computer analyses the waveform of the background aural or nonaural noise interference . This waveform is identical or directly proportional to the waveform of the noise, except for its opposing amplitude This method differs from passive noise control methods ( sound proofing ) in that a powered system is involved, rather than unpowered methods such as insulation , sound-absorbing ceiling tiles or automobile mufflers. Practical implementation is complex, due to the way that sound waves can interact, particularly at high frequencies or in geometrically complex areas. They are most easily used with simple, low-frequency sounds, such as the sound of air moving through a duct. Antinoise systems have seen some use for quiet headphones and for reducing engine noise in vehicles.

68. Active Noise Control. Who Is Active Noise Control? What Is Active Noise Control? Definition of Active noise control in an online ecyclopedia or dictionary. http://www.knowledgerush.com/kr/encyclopedia/Active_noise_control/

community directory books authors ... encyclopedia Email: Password: Register Knowledgerush Search Web knowledgerush Search for images of Active noise control Message boards Post comment Active noise control Active noise control (also known as antinoise ) is a method for preventing unwanted sound . Sound consists of vibrations in the air , which can be represented as a wave . If a speaker emits a sound whose wave is the exact opposite phase to the original sound, the waves cancel out and the result is no sound at all. A computer analyses the waveform of the background aural or nonaural noise interference . This waveform is identical or directly proportional to the waveform of the noise, except for its opposing amplitude This method differs from passive noise control methods ( sound proofing ) in that a powered system is involved, rather than unpowered methods such as insulation , sound-absorbing ceiling tiles or automobile mufflers Practical implementation is complex, due to the way that sound waves can interact, particularly at high frequencies or in geometrically complex areas. They are most easily used with simple, low-frequency sounds, such as the sound of air moving through a duct. Antinoise systems have seen some use for quiet headphones and for reducing engine noise in vehicles.

69. Wiki Active Noise Control Wiki Active noise control. Contents 1. Explanation 2. Applications 3. See also 4. External links 5. References. Active noise control (ANC) (also known as http://wapedia.mobi/en/Active_noise_control

Wiki: Active noise control Contents: 1. Explanation 2. Applications 3. See also 4. External links ... 5. References Active noise control (ANC) (also known as noise cancellation active noise reduction (ANR) or antinoise ) is a method for reducing unwanted sound Home Licensing Wapedia: For Wikipedia on mobile phones

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Search Our Site: the entire directory only this category More search options Home Science Technology ... Acoustics, Ultrasound and Vibration : Active Noise Control LINKS: Active Noise Control for Smart Materials Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation. (Rating: 0.00 Votes: 0) Rate It BoscoItalia S.p.A. (Italy) company in the sector of the industrial noise, noise reduction systems in all industrial fields: aeronautics, motoring, energy, road building and railways. (Rating: 0.00 Votes: 0) Rate It Frequently Asked Questions about Active Noise Control Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. (Rating: 0.00 Votes: 0) Rate It Lord Corporation NVX Active Systems Products from a manufacturer of active noise and vibration control systems for passenger aircraft. (Rating: 0.00 Votes: 0)

71. Bambooweb: Active Noise Control sound. Sound consists of vibrations in the air, which can be represented as a wave. If a speaker emits a sound whose wave is. http://www.bambooweb.com/articles/a/c/Active_noise_control.html

Active noise control sound . Sound consists of vibrations in the air , which can be represented as a wave . If a speaker emits a sound whose wave is the exact opposite phase to the original sound, the waves cancel out and the result is no sound at all. A computer analyses the waveform of the background aural or nonaural noise interference . This waveform is identical or directly proportional to the waveform of the noise, except for its opposing amplitude This method differs from passive noise control methods ( sound proofing ) in that a powered system is involved, rather than unpowered methods such as insulation , sound-absorbing ceiling tiles or automobile mufflers The advantages of active noise control methods compared to passive ones are: they are more effective at low frequencies they are less bulky, something valuable on aircrafts they can be made to be selective, i.e. to block noise (e.g. from an engine) but not useful signals (e.g. voice). Applications can be 1-dimensional or 3-dimensional, depending on the type of zone to protect. Protection of a 1-dimension zone is easier and requires only a couple of microphones and speakers to be effective. Several commercial applications have been successful: noise-cancelling headphones, active mufflers, control of noise in air conditioning pipes.

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Home Links Contact Members Login User: Pass: Conf. Pass: Remember: Yes No Directory links Directory in other languages TECHNOLOGY ACTIVE NOISE CONTROL Top Science Technology Acoustics, Ultrasound and Vibration -> Active Noise Control (5) Virginia Tech Vibration and Acoustics Lab Research at Virginia Tech. www.val.me.vt.edu Lord Corporation NVX Active Systems Products from a manufacturer of active noise and vibration control systems for passenger aircraft. www.lord.com BoscoItalia S.p.A. (Italy) company in the sector of the industrial noise, noise reduction systems in all industrial fields: aeronautics, motoring, energy, road building and railways. www.boscoitalia.it Frequently Asked Questions about Active Noise Control Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. users.erols.com Active Noise Control for Smart Materials Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation. www.signalsystemscorp.com

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Next Generation Search Solutions Top Science Technology Acoustics, Ultrasound and Vibration : Active Noise Control Search took 0.53 seconds. See also: Business: Energy and Environment: Environment: Noise and Vibration Control: Products: Control Frequently Asked Questions about Active Noise Control - Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. Active Noise Control for Smart Materials - Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation. BoscoItalia S.p.A. (Italy) - company in the sector of the industrial noise, noise reduction systems in all industrial fields: aeronautics, motoring, energy, road building and railways. Lord Corporation NVX Active Systems - Products from a manufacturer of active noise and vibration control systems for passenger aircraft. Virginia Tech Vibration and Acoustics Lab - Research at Virginia Tech.

76. Chemistry - Active Noise Control Periodic Table. standard table. - large table. Chemical Elements. - by name. - by symbol. - by atomic number. Chemical Properties. Chemical Reactions http://chemistrydaily.com/chemistry/Active_noise_control

Periodic Table standard table large table Chemical Elements ... Noise Active noise control Active noise control (also known as noise cancellation or antinoise ) is a method for preventing unwanted sound . Sound consists of vibrations in the air , which can be represented as a wave . If a speaker emits a sound whose wave has the same amplitude and the exact opposite polarity to the original sound, the waves cancel out and the result is no sound at all. A computer analyses the waveform of the background aural or nonaural noise interference . This waveform has identical or directly proportional amplitude to the waveform of the noise, but its phase is the opposite. This creates destructive interference that reduces the amplitude of the perceived noise. This method differs from passive noise control methods ( sound proofing ) in that a powered system is involved, rather than unpowered methods such as insulation , sound-absorbing ceiling tiles, or automobile mufflers The advantages of active noise control methods compared to passive ones are: they are more effective at low frequencies they are less bulky, something valuable on aircrafts

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Login Navigate : Select section Contact Us Live Assistance Destination Explorer Deal Club Airfare Deals Cruise Deals Holiday Deals Hotel Deals Flight Schedules Great Getaways India Extra Mile Beach Vacations Healing Holidays Hill Stations Honeymoon Havens Outdoor Ideas Spiritual Spots Wildlife Parks Go Cruising Globetrotter Off Track Travel Guides Journey Post Journey Tools Travel Trade Zone Advertise with Us FLIGHTS HOTELS TOURS CARS ... July Calendar Free Newsletter Link Exchange Travel Trade - For Business Opportunities ... Acoustics, Ultrasound and Vibration : Active Noise Control Description See also: Business: Energy and Environment: Environment: Noise and Vibration Control: Products: Control Frequently Asked Questions about Active Noise Control - Provides answers to common questions about active noise control including a discussion of popular misconceptions about what active noise control can and cannot do. Active Noise Control for Smart Materials - Research results and software tools for using smart materials in active noise control. Active noise control and noise cancellation solutions for acoustic problems brought to you by Signal Systems Corporation. BoscoItalia S.p.A. (Italy)

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