Volume 3, Number 4, December, 1995 - Noise News International

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the latest word in anechoic room design...lAC's new Metadyne Anechoic Wedge represents a scientific breakthrough in anechoic roomdesign. The rugged perforated metallic Metadyne wedge offers benefits to researchers and quality controlmanagers that heretofore have been unattainable. These include:One of ten Hemi-Anechoic Rooms with Metadyne Wedges at AdvancedEngineering Center, Ford Motor Company, Dearborn, Michigan. Specificationsrequired cut-off frequencies of 125Hz, 90 Hz, and 60 Hz.• Impact resistance• Resistance to erosion & circulation offibrous materials• Readily cleanable and palntablesurfaces• High fire-resistance (In case of spills oruse of flammable materials)• Interchangeability and adjustabllltyDeveloped in lAC's Aero-Acoustic Laboratory,the Metadyne design has been proven in recentfield tests which have exceeded customerspecifications. Deviations from theoretical freefieldinverse square law were well within ISOStandards.Ideally suited to acoustic laboratories workingwith engines, heavy equipment, dynamometersand/or flammable materials.The Metadyne Anechoic Wedge System is an alternative to our standardMicrodyne Anechoic Wedges utilizing glass-fiber or foam-base materials.lAC Mlcrodyne Anechoic Room with 125 Hz cut-off foam wedgesat Steelcase Corporation acoustical laboratory, Grand Rapids,Michigan. Two Macrodyne Reverberation Rooms are also part ofthis research and development facility.Apple Computer's Heml-Anecholc Room designed, bUilt, andInstalled by Industrial Acoustics Company to Apple specifications.The chamber Is a first-rate example of a high-tech acousticenvironment. Cut-off frequency 100 Hz.Request 20-page lAC Bulletin 7.0102 with technical data on all types oflAC Anechoic Rooms, including Mini-AnechoicRooms for small-component testing. For an overview oflAC products and services request Bulletin 0.0002.cTHE STANDARD OF SILENCEINDUSTRIAL ACOUSTICS COMPANYSINCE 1949 - LEADERS IN NOISE CONTROL ENGINEERING, PRODUCTS AND SYSTEMSUNITED STATES UNITED KINGDOM GERMANY1160COMMERCE AVENUE CENTRAlTRADING ESTATE SOHLWEG 17BRONX, NEW YORK 10462·5599 STAINES, MIDDLESEX, TW18 4XB D·41372 NIEDERKROCHTENPHONE: (718) 931·8000 PHONE: (01784) 456·251 PHONE: (02163) 8431FAX: (718) 863·1138 FAX: (01784) 463·303, TELEX: 25518 FAX: (02163) 80618TECHNICAL REPRESENTATION IN PRINCIPAL CITIES THROUGHOUT THE WORLDReader Service Number 2
Editorial StaffG. Mating,JI'.. Managing EditorA. Cops, European EditorA. Lawrence, Asia-Pacific EditorG. Maling,Jr., Pan-American Editorw.w. Lang,Feature EditorProduced byIEEE MagazinesFran Zappulla, Associate PublisherSusan Schneiderman,AdvertisingSales ManagerJanet Dudar, Art DirectorBob Smrek, Production ManagerBrian Benbrook, Production EditorMargaret Morin.AdvertisingProduction CoordinatorEditorial OfficesNoise Control FoundationP.O Box2469 Arlington BranchPoughkeepsie, New York, U.S.A.Noise/News International (ISSN 1021·643X) is aquarterly news magazine publishedjointly by theInternational Instituteof NoiseControlEngineeringandthe Instituteof NoiseControlEngineeringoftheUSA., Inc. Noise/News International is distributedto the MemberSocieties of IntemationallNCEandto the membersof INCFJUSA as a memberbenefit.Advertising servicesandproductioncontrolarc providedbythe IEEEMagazines group of the Instituteof Electrical and Electronics Engineers. Inc. Editorialservicesarcprovidedby NoiseControlFoundation. Inc. Feature articles for Noise/NewsInternational are selected by the editors. Responsibilityfortheeditorialcontentrestsupontheauthorsand not upon International INCE. INCFJUSA. theIEEE. Noise Control Foundation. the societies ortheir members. Productinformation is providedasa readerserviceanddocsnotconstituteendorsementby the societies or their members. SUBSCRIPTIONS: Inthe USA.the annualsubscription rate isUSD50.00. postpaid,whichis includedin theduesof Members and Associates of INCE/USA. Nonmembersubscriptionrates available upon request.Singlecopypriceis USD10.00. Addresscorrespondenccconcerningsubscriptionsto INCE/USA. P.O.Box 3206. Arlington Branch. Poughkeepsie. NY12603-0206. In all other countries. the annualsubscriptionrate is CHF 80 via surface mail; airmaildelivery subject to additionalcharge. Single copyprice is CIIF 20. Addresscorrespondence conccmingsubscriptions to I·INCE General Secretariat,Celestijnenlaan 200 D. B-3001.Hcvertec-Leuvcn,Belgium. EDITORIAL CORRESPONDENCE:Addressto GeorgeC. Mating, Jr.. Managing Editor.NNI. c/o INCFJUSA, P.O. Box 3206. ArlingtonBranch, Poughkeepsie, NY 12603.USA; telephone+19144624006 or FAX+19144630201. COPYRIGHT AND REPRINT PERMISSIONS: Copy.right to 1995 by Institute of Noise ControlEngineering of the USA.Inc. Forallothercopying.reprint, or republication permission, write to theManagingEditorat theaddressabove. ADVERTISING: For information about advertising. contactSusan Schneiderman, Advertising Sales Manager.IEEE Magazines. 445 Hoes Lane, Piscataway. NJ08855-1331, USA: telephone: +I 908 562 3946;FAX: +I 908981 1855. Printedinthe UnitedStatesof America.Cover photo courtesy of the Scatrlc-King CountyConventionand Visitors Bureau .INTERNRTIONRL.Volume 3, Number 4 - 1995 DecemberFEATURESRegulations For Community NoiseDieter Gottlob . . . . . . . . . . . .A quarterly news magazineNoise Control-Principles and PracticeStig lngemansson . . . . . . . . . . . . . . . . . . . . . . . . 237DEPARTMENTSPresident's ColumnEditor's View . , . .Member Society ProfilePan-American NewsPeople .European NewsAsia-Pacific NewsBooksProduct NewsINCE Update ,Specialized MeetingsStandards News , . .World Conference CalendarInstitute Notices .NNI Directory. . . . . . . .International Advertiser ContactsDirectory of Noise Control ServicesIndexto Voulume 3 ............. 2232202212222442462472482492502522532552632652682702712721995 DecemberNoiselNews International217
Page 1: Volume 3, Number 41995 DecemberINTE
Page 5 and 6: What's all the noise about?Noise Ra
Page 7 and 8: Editor's ViewGoing SurfingThis is t
Page 9 and 10: FeatureRegulations for Community No
Page 11 and 12: • To protect the majority of peop
Page 13 and 14: develop a new proposal for the defi
Page 15 and 16: ....~VIr~ZQ~~;- '";;~Q;[Table 4. Ro
Page 17 and 18: lation living close to roads. This
Page 19 and 20: ....III~?t~~S.zQcountry national LA
Page 21 and 22: The last two objectives have been c
Page 23 and 24: CONTROLTheillustrations inthisfeatu
Page 25 and 26: Application with compressed air and
Page 27 and 28: Application with ventilationExample
Page 29 and 30: Application with control valves for
Page 31 and 32: accomplished through the use of the
Page 33 and 34: European NewsA. Cops, European Edit
Page 35 and 36: BooksThe Handbook of Hearing and th
Page 37 and 38: For further information contact Deb
Page 39 and 40: Specialized MeetingsThis calendar i
Page 41 and 42: Standards News (USA)*Avril Brenig,
Page 43 and 44: Standards News (USA)*Avril Brenig,
Page 45 and 46: S3 IECrrC 29(Central Office)2 15- 0
Page 47 and 48: consequences of unable to compare a
Page 49 and 50: World Conference CalendarThis calen
Page 51 and 52: Institute NoticesThisDepartment inc
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This is the world's mosl advancedda
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International INCE Sustaining Membe
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DIRECTORY OF NOISE CONTROL SERVICES
Page 59 and 60:
IN THE R&D LAB,ON THE TEST TRACK,ON
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Volume 3, Number 4, December, 1995 - Noise News International

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