Geometry.Net - Environment: Noise

Subject: Noise Environment Sub-Committee - Initial Proposal
The charter of the noise environment subcommittee was defined as follows. Is there an issue about the noise environment in 902-928 MHz or the other
http://www.jacksons.net/tac/First Term/Noise_Plan v1.1.htm

Extractions: Subject: Noise Environment Sub-Committee - Initial Proposal Author: Motorola Date August 11, 1999 In response to FCC requests, the TAC formed three sub-committees covering various topics impacting radio spectrum policy. These topics were Software Radio, Ultra Wideband Radio and the Noise Environment. The charter of the Noise Environment sub-committee was defined as follows. Noise Environment Sub-Committee Charter Assess and report to the Commission the current state of knowledge on electromagnetic noise levels and the effects of such noise on the reliability of existing and future communications systems. Identify, if possible, man made causes of electromagnetic noise that have or are likely to have harmful effects on wireless communications. Identify issues or causes of man made electromagnetic noise that justify FCC attention or action. Determine what types (if any) of electromagnetic noise create significant concerns and suggest technical approaches for obtaining sufficient information on the subject Our approach to addressing this charter was to first define the scope of this effort. We felt that potential noise from RF communication devices (Cell phones, two-way radios, microwave equipment, etc), other types of devices (e.g. computers, cars, power lines, industrial equipment) and natural phenomena (atmospheric noise, sun spots) should be included as possible sources.
Re: Topband: Local Noise Environment
I am trying to figure out my local noise environment and understand what (if anything) I can do to correct it. Pete, It is easier if you can find the source
http://lists.contesting.com/archives/html/Topband/2004-02/msg00273.html

Extractions: More with this subject... Current Thread [RFI] Local Noise Environment Pete Smith [RFI] Re: Topband: Local Noise Environment Michael Tope Re: Topband: Local Noise Environment Ken Brown Re: Topband: Local Noise Environment Herb Schoenbohm [RFI] Local noise environment Pete Smith Re: Topband: Local noise environment Brad Rehm Re: Topband: Local noise environment Doug Waller RE: Topband: Local noise environment Garry Shapiro [RFI] Re: Topband: Local noise environment Tom Rauch Topband: EU to VE6 [RFI] Re: Topband: Local noise environment Michael Tope Re: Topband: Local noise environment Milt Jensen, N5IA
[RFI] Local Noise Environment
I am trying to figure out my local noise environment and understand what (if anything) I can do RFI Re Topband Local noise environment, Michael Tope
http://lists.contesting.com/archives/html/RFI/2004-02/msg00092.html

Extractions: RFI Top All Lists Date Advanced ... Thread from [ Pete Smith Permanent Link Original To topband@contesting.com rfi@contesting.com Subject [RFI] Local Noise Environment From n4zr@contesting.com Date Sat, 14 Feb 2004 10:13:20 -0500 List-post mailto:rfi@contesting.com I am trying to figure out my local noise environment and understand what (if anything) I can do to correct it. On my shunt-fed tower, in daytime, the S-meter on my Mark V (which is extremely generous below S9) reads a steady S9 +10 with the radio in USB mode and the standard filters in use. Switching to a K9AY loop 350 feet away from the tower (with a 20 dB preamp) drops the level of the noise to S7-8. I have listened to the noise in both USB and AM positions, and do not hear the 60 Hz AC arc sound that I have gotten used to in my efforts to track down power-line noise.
Montpellier Airport - The Airport Press Releases/publications
Downloded PDF files. Opened Lines second quarter 2005. Activity report 2004. Statistics reports 2004. noise environment quality charter
http://www.montpellier.aeroport.fr/layer_en.asp?nav=4_5_1
Montpellier Airport - The Environment Dialogue And Consensus
The noise environment quality charter Monitoring Council. The Monitoring council is a working body of the Consultative Environment Committee and is
http://www.montpellier.aeroport.fr/layer_en.asp?nav=5_2_0
City Of Big Bear Lake - General Plan
NOISE ELEMENT. EXISTING COMMUNITY noise environment. In the City of Big Bear Lake, the primary source of noise is motor vehicle traffic, primarily along the
http://www.citybigbearlake.com/departments/plan/generalplan/noise/existing.html

Extractions: In the City of Big Bear Lake, the primary source of noise is motor vehicle traffic, primarily along the Highway 18 - Big Bear Boulevard corridor. To a lesser but occasionally substantial degree, boats and other watercraft using the lake are a source of disruptive noise, and aircraft traffic also contributes an intrusive element to the noise environment. Other sources of community noise include mechanical equipment serving commercial land uses, resorts and major institutions, i. e., snowmaking machines. In addition, with the growing number of commercial entertainment venues, noise from amplified music and entertainment has become a concern to adjacent lodge owners and residential neighborhoods, particularly in the areas near the Lake where sound carries for long distances. Motor Vehicle Noise (Landcraft) The principal noise source measured (1997) within the community is vehicular traffic, including automobiles, trucks, buses, and motorcycles. The level of noise generated by vehicular traffic generally varies according to the volume of traffic, the percentage of trucks, and average traffic and other sources at several locations in the community on local noise environments. Table N-4 presents projected noise contours along arterial corridors at current traffic levels and at General Plan buildout.
City Of Big Bear Lake - General Plan
MANAGING THE noise environment. There are a variety of strategies available for managing the City s noise environment and preserving those qualities of
http://www.citybigbearlake.com/departments/plan/generalplan/noise/managing.html

Extractions: There are a variety of strategies available for managing the City's noise environment and preserving those qualities of peace and quiet that are essential in maintaining a high quality of life. Land use planning, transportation planning, project design mitigation, construction materials and techniques, and acoustical barriers are available strategies to mitigate noise impacts. In areas subject to potentially significant noise impacts, site planning and design standards can be used to reduce noise impacts. Applied mitigation measures may include but not be limited to the use of buffer zones containing earthen berms, walls and landscaping between sensitive land uses and roadways or other noise sources. In addition, site planning and building orientation can provide shielding of outdoor living spaces, and windows may be oriented away from noise sources. Acoustical materials can also be incorporated into building windows and walls to attenuate outdoor noise to acceptable indoor levels. BACK TO TOP BACK TO GENERAL PLAN TABLE OF CONTENTS NEXT City Hall ... Home City of Big Bear Lake
Wieland Associates Experience Preparing A Noise Study For A Street Widening Proj
or constructing a new street, changes the existing noise environment. The change often results in increased noise levels at adjacent residential areas.
http://www.wielandassoc.com/Street Widening.html

Extractions: Street Widening and Alteration Noise Studies The Problem : Widening or altering the configuration of a street, or constructing a new street, changes the existing noise environment. The change often results in increased noise levels at adjacent residential areas. The Solution : Conduct a noise study that includes obtaining noise measurements at existing noise sensitive areas near the project site, assessing the existing noise environment relative to local standards, assessing the future traffic noise environment with and without the project, and providing noise control recommendations for mitigating significant impacts. Experience Pala Road widening, Temecula, CA El Toro Road noise study, Laguna Woods, CA Bristol Street widening, Santa Ana, CA Lincoln Avenue realignment, Anaheim, CA Tapo Canyon Road extension and soundwalls, Simi Valley, CA Grade separation at Jeffrey Road, Irvine, CA Arterial noise study, Villa Park, CA Bastanchury Road widening, Fullerton, CA Intersecting arterials study for the San Joaquin Hills Transportation Corridor (Route 73), Orange County, CA Archibald Avenue ground access plan, Ontario, CA
Patent 4597098: Speech Recognition System In A Variable Noise Environment
Speech recognition system in a variable noise environment United States Patent 4597098 View Patent Images. Inventors, Noso; Kazunori (Yokosuka, JP);Kishi;
http://www.freepatentsonline.com/4597098.html

Extractions: Patent Number: Advanced Search Site Content Search Patents Use our search engine to find what you need Syntax Reference Learn our powerful search syntax F.A.Q. All about this site and our patent search engine Contact Us Comments? Questions? Let us know! Crazy Patents Don't miss our selection of crazy patents RSS Feeds Subscribe to our RSS Feeds Login Title: Speech recognition system in a variable noise environment Document Number: United States Patent Abstract: A speech recognition system for an automotive vehicle derive a spoken instruction start signal and a spoken instruction end signal when a smoothed spoken instruction signal exceeds or drops below a predetermined threshold level representing the intensity of the background noise for more than first and second predetermined time periods, respectively. Noise is determined by converting the output of a microphone transducing the spoken instruction into a single polarity signal that is smoothed with a long time constant. The single polarity variation is also smoothed with a shorter time constant. The signals with the long and short constants are applied to a comparator that derives a bi-level output signal. In response to transitions in first and second directions of the bi-level signal lasting for first and second durations, the start and end signals are respectively derived. Inventors: Noso, Kazunori; Kishi, Norimasa;
MT DEIR - Section 4.8: Environmental Analysis - Noise
This section describes the noise environment at and near the M T Chico Ranch site Provide information concerning the community noise environment to make
http://www.becnet.org/MT/mt_deir_s04_7.htm

Extractions: 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.
NPL Acoustics Rating The Total Noise Environment - Ideal Or
Rating the total noise environment ideal or pragmatic approach? - Abstract.
http://www.npl.co.uk/acoustics/publications/articles/468.html
NPL Acoustics Temporal Variables In The Assessment Of An
in the assessment of an experimental noise environment Abstract. noise environment using an essentially constant traffic noise reproduced at 85
http://www.npl.co.uk/acoustics/publications/articles/475.html
Analysis Of The Low-Frequency Radio Noise Environment At Satellite Heights From
A recent survey of the HF noise environment at satellite heights from 1 to 14 MHz has been A model was developed to predict the HF noise environment.
http://www.aas.org/publications/baas/v28n2/aas188/abs/S055015.html
The Environment Court - New Zealand
noise environment cost of protecting the environment from noise nuisance (eg methanol plant). Public safety, eg bulk LPG installations,
http://www.justice.govt.nz/environment/

Extractions: Advanced Search About the Ministry Courts Other Ministry Services ... Related Sites The Environment Court, formerly called the Planning Tribunal, is constituted by the Resource Management Amendment Act 1996. It is a court of record consisting of Environment Judges (who are also District Court Judges) and Environment Commissioners. The Court has registries in Auckland, Wellington and Christchurch, and holds sittings throughout the country. Except for hearing enforcement proceedings that involve questions of law, sittings are usually constituted by one Environment Judge and two Environment Commissioners Parties before the Court are usually represented by lawyers, but anyone may appear in person, or be represented by any other agent. The Court is not bound by the rules of evidence and the proceedings are often less formal than the general courts. Most of the Court's work involves public interest questions. Because of the gravity and complexity of the subject matter of the proceedings, oral decisions can seldom be given, and decisions are usually reserved - meaning that a written judgement is delivered at a later date. Jurisdiction and Examples of the Court's Work
Bose Noise Cancelling Headphones
For an office or other moderate/low noise environment, I d accordingly rate the The next test was to try them both in a high noise environment,
http://www.thetravelinsider.info/7dec2001.htm

Extractions: Part II of our series on Noise Reducing Headsets If you haven't already read the first part of this series, you might want to do that first because it discusses the general principles of noise reduction as well as the specifics of the Noisebuster unit. The bottom line - The Bose headphones give better quieting on a plane, but not in an office environment. They are more comfortable to wear, but are bulkier. Noise Reducing Headphones International Cell Phone Service GSM cell phone unlocking FAQs Unlock Your GSM Cell Phone ... Road Warrior Discussion Forum Search Looking for something else? Search our site or the entire internet. Help this Site Thank you for your interest in helping this site to continue to develop. Some of the information we give you here can save you thousands of dollars the next time you're arranging travel, or will substantially help the quality of your travel experiences in other, non-cash ways. Reader's Replies If you'd like to add your own commentary
Assessment Of The Subsonic Noise Environment In The Nellis Range Complex - Storm
The Nellis AFB Range covers over 13000 square miles of southern Nevada. Numerous US Air Force aircraft operate within this range on a regular basis,
http://www.stormingmedia.us/96/9605/A960504.html

Extractions: Limitations: APPROVED FOR PUBLIC RELEASE Description: Interim rept. Jun 1991-Jan 1993 Pages: Report Date: JAN 1993 Report number: Keywords relating to this report: AIR FORCE FACILITIES AIR FORCE TRAINING AIRCRAFT NOISE COMBAT READINESS ... NOISE POLLUTION Printed Format - $27.95 Adobe PDF - $24.95 Please check the box for the format you wish to order. Shipping Terms
Study Of Noise Environment And Audiometric Survey Of Technical
Medical Journal Armed Forces India. 1990 Jul; 46(3) 18792.
http://medind.nic.in/imvw/imvw19774.html
ASA 147th Meeting Lay Language Papers - Evidence For Training Effects Of The Aco
A monotone nonoise environment prevents the hearing system from fully developing and maintaining its performance. Conditions with a variety of sound are
http://www.acoustics.org/press/147th/Fleischer.html

Extractions: 147th ASA Meeting, New York, NY According to prevailing concepts, sound is more or less detrimental to the ear. Loud noise can cause permanent auditory damage as well as rapid aging of hearing. Hence, it is generally assumed that persons not exposed to noise hear excellently and their hearing capability ages only slowly, if at all. For more than a decade our group has been working on the relation between exposure to sound and auditory performance. We are only examining healthy persons, of all ages, and we are especially interested in studying and comparing entire groups of persons: office personnel, construction workers, high-school students, university students, airline pilots, dentists, orchestra musicians, fans of discotheques, avoiders of discotheques, etc. In order to determine the hearing capabilities of persons not exposed to noise, we conducted - in cooperation with FMM University in Xian - a field study in remote parts of China, examining Tibetian nomads, Tibetian monks, and peasants from the Qin-Ling mountain range. All told, we now have data on roughly ten thousand volunteers in our database. Special analytical procedures permit direct comparisons between the various groups. We also separate, by program, persons with good hearing from those with auditory damage. This makes it possible to compare only the good-hearing persons of the various groups, or the persons with auditory damage. A ranking of the groups according to the quality of hearing leads to unexpected results. On top of the listwith the best hearingare groups that live and work in an acoustic environment that is loud, but not excessively loud. At the bottom of the list are groups that are exposed to excessive noise but also those who are not exposed to noise at all. While excessive levels of noise undoubtedly damage the ear, hearing appears to suffer for those who grow up and live in a low-noise environment. We may call this "auditory deprivation," and it prevents the auditory system from fully developing its potential.
CAA Paper 87004: Noise Attenuation Properties Of Headsets In A Helicopter Noise
CAA Paper 87004 Noise Attenuation Properties of Headsets in a Helicopter noise environment. Please find below details of the CAA Publication you have
http://www.caa.co.uk/application.aspx?categoryid=33&pagetype=65&applicationid=11
YVR Airport Authority Environment
The Airport Authority recognizes that noise associated with air travel can 22 key initiatives to improve the noise environment around the airport.
http://www.yvr.ca/authority/community/

Extractions: 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. 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.

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