61. IngentaConnect Multi-channel Active Noise Control For Periodic Sources-indirect This paper presents a multichannel active noise control algorithm that is designed to reject periodic signals of unknown frequency. http://www.ingentaconnect.com/content/els/00051098/2004/00000040/00000002/art002

var tcdacmd="dt"; Home About Ingenta Ingenta Labs Ingenta Blog ... Check our FAQs Or contact us to report problems with: Subscription access Article delivery Registration Library administrator tasks ... Other problems For Publishers Why go online? Why choose IngentaConnect? Beyond Print: enhancing your service Access and authentication ... Contact us For Researchers For Authors About IngentaConnect Search and browse Publications available ... Register For Librarians Resource Zone Why choose IngentaConnect? Why choose IngentaConnect Complete? Activating Subscriptions ... Register CM8ShowAd("HorizontalBanner"); Multi-channel active noise control for periodic sources-indirect approach Authors: Wu B.; Bodson M. Source: Automatica , Volume 40, Number 2, February 2004 , pp. 203-212(10) Publisher: Elsevier view table of contents Key: - Free Content - New Content - Subscribed Content - Free Trial Content CM8ShowAd("Skyscraper"); Keywords: Active noise control Disturbance rejection Adaptive control Periodic signals ... Phase-locked loop Language: English Document Type: Research article DOI: 10.1016/j.automatica.2003.09.014

62. Active Noise And Vibration Control We are investigating Active Structural Acoustic Control (ASAC) on the enclosure, and active noise control (ANC) in the enclosed space. http://control.ee.ethz.ch/~anc/

Note: This content is accessible to all versions of every browser. However, this browser does not seem to support current Web standards, preventing the display of our site's design details. General Info Overview Visitors People Links Research Groups Publications Software Education Courses SA/DA Lab News News Seminars Jobs Search Internal The Active Noise and Vibration Control Group Home Research People Publications ... Collaborators Noise is more and more perceived as an environmental pollutant. This shift in attitude is reflected in stricter legislation and has wide ranging economic consequences. Traditionally, noise was reduced by passive means like mufflers, damping plates, sound absorbing materials, double-glazing windows, noise barriers etc. All these passive means are mostly suitable for high frequencies and have various disadvantages. In the last decade, active control of sound and vibration (at audio frequencies) has emerged as a viable technology to bridge the low-frequency technology gap. The general area considered is broadband noise transmitted to an enclosed area. We are investigating Active Structural Acoustic Control (ASAC) on the enclosure, and Active Noise Control (ANC) in the enclosed space. Our work tries to introduce novel aspects of multivariable control to this field and is focused on two problems. For the ASAC problem we want to develop techniques for the joint design of the ``smart structure'', the placement of the sensors and actuators, and the synthesis of the control law. For ANC we propose to look at the three-dimensional problem with special emphasis on hitherto neglected aspects of feedback control.

63. Optimization Of An Active Noise Control System Inside An Aircraft Your browser may not have a PDF reader available. Google recommends visiting our text version of this document. http://www.springerlink.com/index/N8X1L4P8K618323G.pdf

64. Silentium - Spatial Active Noise Silentium recently launched new Spatial active noise controlbased products, including the AcoustiRack Active and receives $1.8M in funding. http://www.export.gov.il/Eng/_Articles/Article.asp?ArticleID=7637&CategoryID=622

65. IEEE Xplore# Wrapper Result Your browser may not have a PDF reader available. Google recommends visiting our text version of this document. http://dx.doi.org/doi:10.1109/MCS.2002.1021643

Conference Proceedings Standards Books Educational Courses ... Purchase History Cart Sitemap Help CrossRef Search BROWSE SEARCH IEEE XPLORE GUIDE SUPPORT You requested this document: Frequency selective feedback for active noise control Meurers, T.; Veres, S.M.; Elliot, S.J.; Control Systems Magazine, IEEE Volume 22, Issue 4, Aug. 2002 Page(s):32 - 41 Abstract: Active noise control has moved from the laboratory to industrial applications. This article presents a frequency-selective, filter-based adaptive feedback solution in the frequency domain for periodic noise attenuation. Abstract PDF (1277 KB) IEEE JNL Key IEEE JNL IEEE Journal or Magazine IEE JNL IEE Journal or Magazine IEEE CNF IEEE Conference Proceeding IEE CNF IEE Conference Proceeding IEEE STD IEEE Standard Help Contact Us IEEE.org

66. Active Noise Control Equipment - UK (England, Scotland, Wales, Northern Ireland) Find active noise control Equipment suppliers in UK. Kellysearch has 26 companies listed for active noise control Equipment. http://www.kellysearch.co.uk/gb-product-119712.html

Suppliers Catalogues News Web Search ... Advertise Worldwide United States United Kingdom Asia Africa Middle East Australasia Europe North America South America Southeast Asia Australia Canada China Finland Germany Hong Kong India Indonesia Ireland Japan Netherlands New Zealand Norway Malaysia Singapore South Africa Sweden Taiwan Thailand Vietnam Product/Service Company Narrow Search Click to refine by postcode Full UK Postcode: within 5 miles 10 miles 15 miles 25 miles 50 miles Widen Search Click to refine by region or country Worldwide (27) Africa (1) ... Taiwan (1) UK (7) US (11) Home Active Noise Control Equipment UK Active Noise Control Equipment Suppliers - UK (England, Scotland, Wales, Northern Ireland) More in this sector... 3 Pass Fire Tube Boilers ABS Water Booster Units ASME Standard Boiler Heads ATEX Certified Explosion Protected (EX) Electric Process Heating Systems ... More terms... 1 - 7 of British results Burton-on-Trent, Staffordshire, UK Noise control (industrial) equipment noise control noise control services/acoustic consultants. For more information please call us direct or click through to our website. Details Catalogue Save Share ... www.acoustic.co.uk

67. Real-Time Active Noise Control Using TI ‘C54 RealTime active noise control Using TI ‘C54 Motivation What is active noise control? Why active noise control? Single-Channel Adaptive Feedback ANC http://amp.ece.cmu.edu/people/ratmadja/poster/ppframe.htm

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68. Active Noise Control active noise control. Active noise reduction (ANR) is a rapidly developing technology that is particularly useful in reducing lowfrequency noise. http://www.wylelabs.com/services/arc/acousticresearch/activenoisecontrol.html

home Site Map About Wyle Aerospace Group ... 2008 News Releases Tools: Dicerno NMSim SIMplanner Resources: Document Library Noise Bulletins Wyle Forums home ... Acoustic Research Active Noise Control Active Noise Control Active noise reduction (ANR) is a rapidly developing technology that is particularly useful in reducing low-frequency noise. The Wyle Acoustics Division has been developing this technology over the past several years and envisions ANR as a solution to some of the community noise problems faced at commercial airports and military air bases. Noise from aircraft operations at commercial airports continues to be a source of annoyance to the local community. Wyle Acoustics Group has recently developed methods for controlling jet noise through active noise reduction (ANR) or "anti-noise." This technology allows a sample of the noise to be electronically processed and fed through loudspeakers in "anti-phase" so as to cancel the offending noise. This technology is particularly adapted to: Maintenance testing of engines (run-ups). Reduction of low-frequency noise generated behind departing aircraft.

69. Technology: Acoustics, Ultrasound And Vibration: Active Noise Control Research results and software tools for using smart materials in active noise control. active noise control and noise cancellation solutions for acoustic http://www.spacetransportation.org/Technology/Acoustics__Ultrasound_and_Vibratio

Technology: Acoustics, Ultrasound and Vibration: Active Noise Control Home Add Url About Us Contact Us ... Acoustics, Ultrasound and Vibration : Active Noise Control Advertising Links Virginia Tech Vibration and Acoustics Lab Research at Virginia Tech. http://www.val.me.vt.edu/ 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. http://www.signalsystemscorp.com/ancindex.htm 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. http://www.boscoitalia.it TechnoFirst Designer and manufacturer of mufflers and headsets with active control of noise and vibrations. http://www.technofirst.com/us/index_us.htm Lord Corporation NVX Active Systems Products from a manufacturer of active noise and vibration control systems for passenger aircraft. http://www.lordcorp.com/

70. CNR-->Institute ITC :Focus active noise control (ANC), in which additional secondary sources are used to cancel noise from the original primary source, is based on the principle of http://www.cnr.it/istituti/FocusByN_eng.html?cds=101&nfocus=1

71. NoiseBoard :: News About Noise This book is a must have if you do active noise control. active noise control Systems Algorithms and DSP Implementations Popular...... http://www.noiseboard.com/modules.php?op=modload&name=books&file=index&req=view_

72. [Noise And Vibration Research Group] Active Noise Control Applied To Acoustic En The objective of the research was to explore the potential use of active noise control techniques to increase the transmission loss of acoustic enclosures http://www.mech.kuleuven.be/mod/past/past_03_04

Home About Research Events ... K.U.Leuven Print Noise and Vibration Research Group - Active noise control applied to acoustic enclosures Description Research work on active noise control (ANC) has mainly focussed on the application of the noise comfort in the driver's cabin of a harvester. Advanced vibro-acoustic modelling techniques are used for the optimisation of the active noise control configuration. In addition, a series of dedicated measurements have been performed on a cabin, both in laboratory conditions as well as in operational load conditions, to characterise the sound field in the cabin and to quantify the source coherence for various operational conditions. Investigated topics include the optimal choice of modelling degree and control convergence constants of a feedforward control strategy, and the use of multiple-source reference signals. Future research work will assess the control performance of the feedforward ANC system and compare it with the performance of a feedback control strategy. Scientific Staff The following people were involved in this research: prof. dr. ir.

73. Allie, Mark C. A Digital Sound control System for Use in Turbulent Flows noiseCon 87; A Practical System for active Attenuation in Ducts Sound and Vibration 22, 1988 http://www.engr.wisc.edu/ece/faculty/allie_mark.html

Home Faculty and Instructional Staff Mark C. Allie Mark C. Allie Associate Faculty Associate Address/E-mail Program Affiliations Interests and Publications For additional information, see my Contact Information 3535 Engineering Hall 1415 Engineering Drive Madison, WI 53706-1691 Tel: 608/262-3618 E-mail: allie@engr.wisc.edu Program Affiliations Electrical and Computer Engineering Selected Awards, Honors and Societies IEEE Audio Engineering Society (AES) Acoustical Society of America (ASA) Interests and Publications Real time active sound and vibration control. Adaptive Filters. Acoustics and vibration. Analog and digital signal processing. Loudspeaker driver design. Loudspeaker system design. Analog and digital power amplifier and low noise preamplifier design. "A New Approach to Active Attenuation in Ducts" 12th International Congress on Acoustics, 1986 "The Use of Random Noise for On-line Transducer Modelling in an Adaptive Active Attenuation System" JASA (Suppl. 1), 1986. "The Selection and Application of an IIR Adaptive Filter for Use in Active Sound Attenuation" IEEE ASSP-35, 1987. "A Digital Sound Control System for Use in Turbulent Flows" Noise-Con 87 "A Practical System for Active Attenuation in Ducts" Sound and Vibration 22, 1988

74. Active Structural Acoustic Control Of Road Noise In A Passenger Vehicle The noise control method, active Structural Acoustic control, is discussed and a brief comparison is drawn with other popular methods of active noise http://www.inderscience.com/search/index.php?action=record&rec_id=6094&prevQuery

75. Noise Control Including Soundproofing Material, Sound Barriers, Sound Reduction Soundproof. Soundproof materials. Soundproof services. Soundproof material manufacturers. Soundproof equipment. Sound proof. http://www.noise-control.info/

www.noise-control.info Find soundproofing materials including soundproof walls, soundproof rooms, sound proof equipment and more. From sound proof walls, sound proof rooms to acoustical foam, you will find the sound proofing material you need. Use the time-saving Request for Quote tool to submit your inquiry to all the soundproofing material manufacturers and suppliers you select. tape-suppliers vibration-absorbers foam-fabricating machine-guards ... E.N. Murray Company, Inc. Denver, CO Request for Quote E.N. Murray manufactures specialty foams for use as soundproofing material. Our foam products can be cut to your exacting specifications for use as sound absorption material. Please contact E.N. Murray for all your noise barrier needs. You are sure to find quality materials at affordable prices. Metal Form Manufacturing Company, Inc. Phoenix, AZ Request for Quote Metal Form Mfg. has over 40 years experience in designing and manufacturing soundproofing, air control and evaporative cooling products. Our Commercial Acoustics group provides noise control solutions with our acoustical panels and louvers, equipment sound enclosures, silencers and more. Eckel Noise Control Technologies Cambridge, MA

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