21. NPL Acoustics: Rating The Total Noise Environment - Ideal Or Pragmatic Approach? NPL Logo, The UK s National Measurement Laboratory, Advanced Search. Rating the total noise environment ideal or pragmatic approach? - Abstract. http://www.npl.co.uk/acoustics/publications/articles/468.html

The UK's National Measurement Laboratory Advanced Search Rating the total noise environment - ideal or pragmatic approach? - Abstract Contact Us Website Map Acoustics Home Publications ... Publications Index - 1970 to 1979 Rating the total noise environment - ide... International Congress on Noise as a Public Health Problem, Dubrovnik, 1973. Proceedings (EPA 550/9-73-008), 777 - 784. Year: 1973 D W Robinson Abstract Human reactions to noise are numerous and variable; despite this, quantitative methods are necessary for planning and comparing data on a uniform footing throughout the world. It is suggested that different measurement techniques may be more alike than they appear and from this arose the concept of Noise Pollution Level, LNP. Shortcomings of this measurement scale in its most primitive form are discussed and a computer realization for a modified LNP is proposed. Last modified on: Wednesday, 18-Feb-2004 10:40:16 GMT Privacy National Physical Laboratory, Teddington, Middlesex, UK, TW11 0LW // the unique identifying reference number for the site to be tracked var site_id = 1; // filename of the file to be downloaded var download_file = ""; // full http path of download excluding filename var path2download = ""; // content of the link for the download (can be image HTML tag) var linkcontent = ""; // NOTE: If you wish to track a download, then values must be given for all // three of the variable above, ie. download_file, path2download, linkcontent var remote_address = "67.18.104.18"; //>

22. [OMRON] Hands-Free Word Recognition In Real Noise Environment The summary for this Japanese page contains characters that cannot be correctly displayed in this language/character set. http://www.wg.omron.co.jp/announce/990831.html

$B $B Hands-Free Word Recognition in Real Noise Environment $B%*%`%m%s!J3t!K0KED@/ Masaki IDA, Hiroyuki MORI (OMRON Corporation) Satoshi NAKAMURA,Kiyohiro SHIKANO (Graduate School of Information Science, Nara Institute of Science and Technology) Abstract $BOBJ8>6O?(B $B!!!!2;@ 2A(B $B!!!!%G! 2A$,I,(B $B!!!!MW$G$"$k!#(B $B!!0lHL$K2;@ eDc <~GH0h$KBP$9$kFC@-$,Nt$j!"8e

23. NFI - Project Report The effect of the noise environment at schools and kindergartens for children s development. Project summary Children in our largest http://dbh.nsd.uib.no/nfi/rapport/?keys=22925&language=en

24. Cranfield University, RMCS - Noise In The Military Environment It covers the noise environment in vehicles, workshops, ranges etc., noise survey, the effect of noise on hearing, current legislation, basic noise control and http://www.rmcs.cranfield.ac.uk/deos/deosshort/407471/view

@import url(http://www.rmcs.cranfield.ac.uk/plone.css?skin=); @import url(http://www.rmcs.cranfield.ac.uk/ploneCustom.css); Advanced Search You are here: Home The Department of Environmental and Ordnance Systems (DEOS) DEOS Short Courses Noise in the Military Environment RMCS Home Page Student Life @ RMCS Departments Academic Departments Service Departments Media Enquiry Latest News Latest Events Courses Applications Postgraduate Courses Short Courses Amenities Library DEOS Short Courses Staff Listing Short Courses Noise in the Military Environment Department Name Entry Requirements Some practical experience with noise problems but limited technical background Course Aims This introductory course aims to increase the awareness of noise problems within the army in the light of the 1989 Noise At Work Regulations and to provide training for civilian and service personnel as 'competent persons' required by the service DCIs. Course Description It covers the noise environment in vehicles, workshops, ranges etc., noise survey, the effect of noise on hearing, current legislation, basic noise control and the use of hearing protection. There is a significant "hands-on" content using surrey instruments. Relevant case histories are used throughout. A (voluntary) written assessment paper is included to anticipate possible future changes in the DCIs. Duration Two days Frequency/Dates One per year;. 5-6 Jul 05. (A number of MOD sponsored places are available)

25. Division Of Environmental Protection - Noise Control Program It is anticipated that the survey will be updated periodically to determine if the noise environment within Denver is deteriorating because of continued growth http://198.202.202.66/Environmental_Protection/template32727.asp

Home About Denver Elected Officials Safety ... Online Services Search or View Directory About Us Air Quality - Indoor Air Quality - Transportation (Mobile Sources) ... Mini-Survey Division of Environmental Protection Noise Control Program Mission Statement: The Noise Control Program in Denver was designed and enacted to protect, preserve, and promote the health, safety, welfare, peace and quiet for the citizens of Denver through the reduction, control and prevention of noise. It is the intent of this program to establish enforceable standards that will reduce or eliminate unnecessary and excessive traffic and community noise that is physically harmful and otherwise detrimental to individuals and the community in the enjoyment of life, property, and the conduct of business. Noise Program Description: Denver has had a community noise program since 1973, when the Noise Ordinance (Revised Municipal Code RMC, Chapter 36) was passed by City Council and signed by the Mayor. When complaints of excessive noise are received by the Denver Department of Environmental Health, an inspector is assigned to investigate the complaint. If the complaint is legitimate, the source of the noise (individual/company/organization) receives a verbal or written warning of the violation requiring a noise reduction to legal levels. If the source does not comply with the warning, a court summons is issued. If guilty, a fine of up to $999 per incident can be levied by the court. A noise survey was conducted in Denver in 1995 to establish the baseline ambient noise levels in various neighborhoods within the City and County of Denver. It is anticipated that the survey will be updated periodically to determine if the noise environment within Denver is deteriorating because of continued growth and increased vehicular traffic.

26. Noise Environment Speech Recognition Using Spectral Subband Centroids IPSJ SIGNotes Spoken Language Processing Abstract No.019 004. noise environment speech recognition using spectral subband centroids. http://www.ipsj.or.jp/members/SIGNotes/Eng/21/1997/019/article004.html

Last Update¡§Tue Jun 19 14:46:14 2001 IPSJ SIGNotes Spoken Language Processing Abstract No.019 - 004 Noise environment speech recognition using spectral subband centroids Tsuge Satoru Fukada Toshiaki Singer Harald Paliwalf Kuldip K. ATR Interpreting Telecommunications Research Laboratories Tokushima University Griffith University This paper investigates the effectiveness of a novel feature for speech recognition called spectral subband centroids (SSC). SSC are computed as frequency centroids for each subband using the power spectrum of the speech signal. This feature can be obtained reliably even under noisy conditions because SSC are mainly computed from spectral peaks such as formants whose positions are almost unchanged in a noisy environment. Therefore, we can expect SSC to provide here useful information. Experimental results on Japanese spontaneous speech recognition showed that SSC produced significant improvements at SNR=10dB and 20dB when used as a supplemental feature to the conventional Met-Frequency Cepstral Coefficients (MFCC). ¢¬Index SIGNotes Spoken Language Processing No.019

27. Noise | Environmental Impacts Noise Standards. The community noise environment consists of a wide variety of sounds, some near and some far away, which vary over the 24hour day. http://ci.monterey-park.ca.us/cdd/planning/env_report/env.impacts/noise.html

Planning Division Draft Environmental Impact Report Environmental Impacts and Mitigation Measures Environmental Setting Noise is generally defined as unwanted sound. Noise can result in speech interference and disrupt activities at home and work, including sleep patterns and recreational pursuits. The long-term effects of excessive noise exposure are physical as well as psychological. Physical effects may include headaches, nausea, irritability, constriction of blood vessels, changes in heart and respiratory rate, and increased muscle tension. How Sound is Measured Sound levels are expressed on a logarithmic scale of "decibels" (abbreviated as dB), in which a change of 10 units on the decibel scale reflects a 10-fold increase in sound energy. A 10-fold increase in sound energy roughly translates to a doubling of perceived loudness. In evaluating human response to noise, acousticians compensate for the response of people to varying frequency or pitch components of sound. The human ear is most sensitive to sounds in the middle frequency range used for human speech and is less sensitive to lower and higher-pitched sounds. The "A" weighting scale is used to account for this sensitivity. Thus, most community noise standards are expressed in decibels on the "A"-weighted scale, abbreviated dB(A). Zero on the decibel scale is set roughly at the threshold of human hearing. Sound levels of common sounds in the environment include office background noise at about 50 dB(A); human speech at 10 feet at about 60 to 70 dB(A); cars driving by at 50 feet at 65 to 70 dB(A); trucks at 50 feet at 75 to 80 dB(A); and aircraft overflights directly overhead a mile from the runway at about 95 to 100 dB(A).

28. Safety And Community Services | General Plan Baseline noise environment To establish a baseline against which to measure changes in the community noise environment over time, a noise modeling effort was http://ci.monterey-park.ca.us/cdd/planning/generalplan/safety.comm.services.elem

Planning Division General Plan Safety and Community Services Element Noise Noise in Monterey Park results primarily from street and freeway traffic and aircraft overflights. Industrial and commercial activity occurs largely within enclosed buildings and thus such activity does not generate excessive noise levels. Localized sources include typical residential neighborhood sounds such as lawnmowers, children at play, and barking dogs. The City controls localized noise through the noise ordinance, which is part of the Municipal Code. In Monterey Park's urban environment, noise becomes a concern when it consistently interferes with a person's ability to conduct his or her everyday work and recreation activities. For example, residents exposed to constant freeway noise might find using their backyard less than enjoyable. Similar noise-sensitive uses like hospitals and schools may also find freeway noise disruptive to indoor and outdoor activity. Residents in homes beneath airport flight paths endure irksome, although not hazardous, noise levels. The planning for future land uses in Monterey Park requires that potentially problematic sources of noise be identified and that noise/land use conflicts be avoided to the extent possible, given the built-out character of the community. Baseline Noise Environment To establish a baseline against which to measure changes in the community noise environment over time, a noise modeling effort was performed, with year 2000 serving as the baseline year. Because traffic noise represents the dominant noise source in the community, the model focuses on traffic noise and the 24-hour ambient noise conditions resulting from this primary source.

29. Low Frequency Noise, Vibration And Active Control An existing industrial test facility was proposed to be relocated from a plant site in a high ambient noise environment to a community with low ambient noise. http://www.multi-science.co.uk/lowfreq.htm

The considerable and growing interest in the phenomena of low frequency noise and vibration and their powerful effects on man, animals and the environment, spreads across several disciplines; studies of these topics are to be found at present in the periodical literature of acoustics, geophysics, architecture, civil and mechanical engineering, psychology and zoology. This quarterly journal brings together material which otherwise would be scattered: the journal is the cornerstone of the creation of a unified corpus of knowledge on the subject. Among the topics covered by the journal are: sources of infrasound and low frequency noise and vibration: detection, measurement and analysis; propagation of infrasound and low frequency noise in the atmosphere; propagation of vibration in the ground and in structures; perception of infrasound, low frequency noise and vibration by man and animals; effects on man and animals; interaction of low frequency noise and vibration: vibrations caused by noise, radiation of noise from vibrating structures; low frequency noise and vibration control: problems and solutions.

30. WIA Environmental Noise Services Performing 24hour or short sample noise surveys to document the existing noise environment in terms of Ldn, CNEL, Leq, L10, or any other required descriptor. http://www.wiai.com/environmental.html

We have worked closely with federal, state, and local government agencies as well as with the sources of community noise, such as airports, transit systems, factories, and power plants. We have the specialized knowledge required to assess the effects of noise and vibration and can make careful studies of legal and economical aspects before recommending noise control features. Representative Services Noise Surveys Performing 24-hour or short sample noise surveys to document the existing noise environment in terms of Ldn, CNEL, Leq, L10, or any other required descriptor. Environmental Impact Statements Preparing the acoustical sections of environmental impact statements. Acoustical Compliance Determining compliance with the California Noise Insulation Standards (Title 24), as well as with ordinances or specific acoustical requirements established by local jurisdictions. Noise Prediction Estimating existing noise levels and predicting future noise levels using mathematical and empirical modeling techniques. Noise Intrusion Designing structures to achieve appropriate insulation of interior spaces from exterior noise sources.

31. YVR Airport Authority Environment Committee. Through this process, we were able to identify 22 key initiatives to improve the noise environment around the airport. The http://www.yvr.ca/authority/community/index.asp

Travel Tips AIF now on the ticket North Runway Departures YVR ... Airport Authority As a community-based organization, Vancouver International Airport Authority is committed to the long-term health and vitality of our surrounding communities. We recognize that our success as a global operator comes from our dedication to environmental excellence and our responsibility in communicating our plans and activities to our communities. Sea Island Conservation Area Environmental Advisory Committee Aeronautical Noise Management Air Quality Management ... ILS Flight Checks Environmental Excellence Safety, security and environmental excellence are the underlying objectives guiding all our initiatives. We are committed to operating and developing the airport in an environmentally responsible manner. We continue to improve environmental management systems with the goal of being certified to ISO 14001, an international environmental management standard. The Environment, Health and Safety Management System was developed specifically for the Airport Authority. Motivating and empowering employees to improve environmental, health and safety performance is important to the Airport Authority. To help achieve this, regular events and workshops are held, such as boat trips on the Fraser River, a health and safety fair, intranet games and entertaining presentations to staff. Environmental Mission: to ensure that activities undertaken at YVR are carried out in an environmentally responsible manner; in compliance with applicable laws, regulations and accepted management practices; and with sensitivity to community and public concerns.

32. City Of Santa Maria, California, Noise Element Summary, Planning Information, Co The noise contours are used as a guide for establishing land uses which are compatible with the noise environment and minimize noise exposure to sensitive land http://www.ci.santa-maria.ca.us/54324.html

Administrative Services Public Safety Return to Community Development Return to Planning Division ... Return to Planning Information Noise Element Summary Public Works Library NOISE ELEMENT SUMMARY Awareness of noise has become a key factor in the perception of the quality of our environment. Noise affects the home environment, work environment, and the enjoyment of recreational activities. For these reasons, noise has become an important consideration in the community planning process. "A noise element which shall identify and appraise noise problems in the community. The noise element shall recognize the guidelines established by the Office of Noise Control in the State Department of Health Services and shall analyze and quantify, to the extent practicable, as determined by the legislative body, current and projected noise levels for all of the following sources: Highways and freeways Primary arterials and major local streets Passenger and freight on-line railroad operations and ground rapid transit systems Commercial, general aviation, heliport, helistop, and military airport operations, aircraft overflights, jet engine test stands, and all other ground facilities and maintenance functions related to airport operation

33. Korea Environment Institute noise from the beginning stage of development, so that housing arrangement plans can be formulated effectively, in consideration of the noise environment. http://eng.kei.re.kr/eng/02_plan/02_outline.asp?id=03_CR29&Page=1

34. The Noise Environment The noise environment. If the product is meant to be used in a noisy environment, care must be taken to design around the noise. http://www.szjtvoice.com/english/product/The Noise Environment.htm

The Noise Environment

35. MASSPORT: Logan Airport: Airport Programs: Environmental - Noise Population Massport reports population counts by 5decibel increments of exposure each year by community to track Logan Airport’s noise environment changes over time http://www.massport.com/logan/airpo_noise_estpo.html

Quick Jump Air Cargo Airlines Arrivals Capital Programs Conference Center Cruiseport Departures Environmental Mgmt Flight Tracker Future Planning Getting from Logan Getting to Logan Hanscom Field Human Resources Logan Parking Logan Traffic Port of Boston Press Room Terminal Info Tobin Bridge Trade Zone Waterfront Weather Worcester Airport Environmental More Information Noise Abatement Airport Monitor How Logan Operates Sound Insulation Noise Monitoring Noise Complaints Complaints By Towns Noise Contours Runway Use Population CNI Aircraft Stage III Type Noise Glossary Noise FAQ Environmental Main Page Counting Population Affected by Logan Noise Both the FAA and the U.S. Department of Housing and Urban Development consider exposure levels higher than DNL 65 dB to be incompatible with residential land use. DNL is the Day-Night average sound Level expressed (in decibels) as a 24-hour average. An annual average of DNLs is used by the FAA to describe airport noise exposure. Areas with noise impacts less than 65 dB DNL are considered "compatible" with residential use; areas at or above 65 dB DNL are designated "incompatible" with residential use. Massport reports population counts by 5-decibel increments of exposure each year by community to track Logan Airport’s noise environment changes over time from neighborhood to neighborhood. The counting methodology is updated over time to reflect changes in population using U.S. Census data.

36. MASSPORT: Logan Airport: Airport Programs: Environmental A direct benefit of Massport’s many innovative programs and new aviation technologies is that Logan’s effect on the noise environment has been dramatically http://www.massport.com/logan/airpo_envir.html

Quick Jump Air Cargo Airlines Arrivals Capital Programs Conference Center Cruiseport Departures Environmental Mgmt Flight Tracker Future Planning Getting from Logan Getting to Logan Hanscom Field Human Resources Logan Parking Logan Traffic Port of Boston Press Room Terminal Info Tobin Bridge Trade Zone Waterfront Weather Worcester Airport Environmental More Information Air Quality Noise Abatement Water Quality Ground Transportation Environmental Reporting Overview As a result of Massport’s many innovative environmental programs, Logan’s effect on the surrounding environment has been dramatically reduced over the past two decades. Massport not only works with federal and state agencies and airport tenants to meet mandated regulations, it also is proactive with its own initiatives in an effort to exceed regulatory requirements and reduce the environmental impact of airport operations. Together with a cleaner and quieter aircraft fleet, Massport’s broad range of alternative ground access transportation options and use of alternative fueled vehicles have drastically improved air quality and noise conditions in and around Logan. Massport is also taking full advantage of environmentally responsible, innovative technologies for the construction and modernization of its facilities. For example, the airport’s new $390 million, world-class Delta terminal (Terminal A) is expected to be a national model for environmentally-friendly airport facilities. Scheduled for completion in 2005, Terminal A's redevelopment reaffirms Massport’s environmental commitment to the community and passengers, with design features which will maximize "green" technology including the use of recyclable materials, natural lighting, energy conservation plans and alternative fuel utilization.

37. EPA - Research & Development data for relatively quiet areas (as defined in the proposed EU Environmental Noise Directive) in order to establish the baseline noise environment in Ireland. http://www.epa.ie/r_d/Phase 1/Medium Scale/MS_14.htm

Environmental RTDI Programme 2000-2006, Phase 1 MEDIUM SCALE PROJECT ENVIRONMENTAL QUALITY OBJECTIVES - NOISE IN RELATIVELY QUIET AREAS (Ref.2000-MS-14-M1) Project Start Date: Febuary 2001 Project Duration 24 Months Project Leader: Declan Waugh, SWS Environmental Services, SWS Co-Op Ltd, Shinagh, House, Bandon, Co. Cork Research Partners: Oliver Hetherington, Environmental Health and Safety Centre, University of Ulster. Brendan O Reilly, Noise and Vibration Ltd. Project Cost: e Project Description: Sustainable development requires that society reduce and control anthropogenic noise pollution, prepare environmentally appropriate protective use of resources (such as soundscapes), allow development in appropriate locations and encourage environmentally sound planning. Preservation of relatively quiet areas must be supported in order to protect areas for people to enjoy solitude and tranquillity, to preserve the aural footprint and characteristics of an area and finally to protect biodiversity. Protection of the acoustic environment in Ireland means that we will have to introduce accountable noise abatement development programmes and related noise monitoring systems to continuously assess and inform on whether one is making progress or not. Through the establishment of this research project the Environmental Protection Agency (EPA) has sought to establish baseline data for relatively quiet areas (as defined in the proposed EU Environmental Noise Directive) in order to establish the baseline noise environment in Ireland. This project through the use of Best Available Information (BAI) and state of the art technologies will support improvements in the acoustical environment and deliver reliable, objective and comparable information on the acoustical environment at a European, National and Local level.

38. MT DEIR - Section 4.8: Environmental Analysis - Noise This section describes the noise environment at and near the M T Chico Ranch site and analyzes potential noise impacts generated by the proposed project. http://www.becnet.org/MT/mt_deir_s04_7.htm

Formatted for and hosted on the Web by Butte Environmental Council Section 4: Environmental Analysis BEC Home Table of Contents Contents 4.1 Inroduction 4.2 Land Use 4.3 Geology 4.4 Hydrology and Water Quality ... 4.10 Cultural Resources 4.8 NOISE 4.8.1 Introduction 4.8.2 Setting Description of Area and Existing Environment The project is located in an agricultural area, with very little residential development. The only noise sensitive receptor in the vicinity of the site is a home on the west side of the project site near its northern end. This home is serviced by River Road. It is approximately 300 feet from the closest point where excavation will occur, and 2,500 to 3,000 feet from the active areas of the processing plant. The site is presently in agricultural use, as is the surrounding land. Thus, the sound of heavy equipment is intermittently common in the area. The land is generally level, but with gentle undulations. At the present time, sound transmission is limited due to ground absorption, as well as shielding by interposing topography. After the lake has been formed, sound will propagate more effectively over water. The traffic generated by trucks, and other vehicles associated with the proposed project, will travel on the existing surface streets. These are generally level and in part pass through residential districts, particularly east of the site, where, at a distance of some 5 miles, one enters the suburbs of Chico.

39. 1.Noise - Environmental Exposure/Healthy Environments 1b. Traffic noise is an integral part of the noise environment in most areas i . Nonoccupational exposure to high road traffic, aircraft or construction noise http://hebw.uwcm.ac.uk/healthyenvironments/Chapter1.html

Healthy Environments Team Leaders: Dr Meirion Evans. Mr Alan Bennett Literature searches completed on 12 February 1998 1: Noise - Environmental Exposure This document is a supplement to, not a substitute for, professional skills and experience. Users are advised to consult supporting evidence for a consideration of all the implications of a recommendation. The Statements The Evidence Occupation is the main cause of hearing loss and occupational noise-induced hearing loss (ONIHL) is one of the most common occupational disorders. It is estimated that 1.3 million British workers in 80,000 workplaces are exposed to greater than 85dB(A) i . Exposure to noise levels of 85 dB(A) for eight hours per day for 40 years carries a 35% chance of a 30dB(A) hearing loss ii . Exposure to 90 dB(A) for the same duration carries a 51% chance of hearing loss ii i. Costs and benefits of the Noise at Work Regulations , 1989. HSE Contract Research Report 116/1996. London: HSE, 1996 http://www.open.gov.uk/hse/pubns/indg75l.htm

40. 4.3 Noise This section discusses the existing noise environment in the proposed Sphere of Influence program vicinity, and identifies potential noise impacts and http://www.lodi.gov/soi/ch4.3noise.htm

4.3 Noise This section discusses the existing noise environment in the proposed Sphere of Influence program vicinity, and identifies potential noise impacts and mitigation measures related to future Sphere of Influence buildout. Specifically, this section analyzes potential noise impacts due to and upon development of the program relative to applicable noise criteria and to the existing ambient noise environment. 4.3.1 Setting Background Noise is defined as unwanted sound. Sound, traveling in the form of waves from a source, exert a sound pressure level (referred to as sound level) which is measured in decibels (dB), with zero dB corresponding roughly to the threshold of human hearing and 120 to 140 dB corresponding to the threshold of pain. Pressure waves traveling through air exert a force registered by the human ear as sound. Sound pressure fluctuation can be measured in units of hertz (Hz) which correspond to the frequency of a particular sound. Typically, sound does not consist of a single frequency, but rather a broad band of frequencies varying in levels of magnitude (sound power). When all the audible frequencies of a sound are measured, a sound spectrum is plotted consisting of each measured Hz and corresponding sound power level. The audible sound spectrum consists of a range of frequency spanning 20 to 20,000 Hz. The sound pressure level, therefore, constitutes the additive force exerted by a sound corresponding to the sound frequency/sound power level spectrum.

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