noise analyser Articles

  • Procedures to analyse noise maps in connection with noise action plans

    After finishing of the noise mapping of the European Noise Directive1” the noise action planning follows. This part of the END-projects concerns with measures for noise reduction in general and in detail and information and collaboration of the public. In this process a huge amount of measures and alternatives accumulates. Therefore automatic working tools for evaluation of the measures and ...


    By SoundPLAN International LLC

  • Multivariate statistical analyses of idle noise and vehicle positioning

    Principal component analysis (PCA) and correspondence analysis (CA) are applied to characterise the differences in engine idle noise and market position analysis. The first principal component represents overall sound pressure level (SPL) showing general noise level and the second principal component as SPL at low frequencies between 25 Hz and 50 Hz. Principal component scores are used as a way ...


    By Inderscience Publishers

  • Wind Energy Production Estimates: Moving Beyond Time Averages

    No need to be a statistician to see that averages are often useful to compare different things. And yet, they often fall short as a true measure of performance. For instance, we use averages to compare the current weather against the climate normals or to get a sense of how our favorite sport team or player is doing. Team (player) statistics are a concise way of combining the scores from many ...


    By AWS Truepower, LLC

  • Environmental Noise

    Introduction The ability to hear sounds is a sensory function vital for human survival and communication. However, not all sounds are wanted. 'Unwanted sounds', for which the term 'noise' is normally used, often have their origin in human activities (mainly transport, industry and households). This article addresses environmental noise ­ also referred to in the scientific literature as ...

  • Noise Moinitoring at Toronto Airport

    Running a Caring Business Toronto Pearson International Airport is Canada's busiest airport. The number of passengers passing through its halls is expected to increase from 28 million in 2001 to around 50 million by the year 2020. The area surrounding the Airport has a population of over 4 million. This presents the Greater Toronto Airports Authority (GTAA) with a major challenge to minimise ...

  • Noise pollution: an overview of management strategies

    Noise pollution is one of the most widespread environmental problems. However noise is a very complex issue, not easy to tackle at all. Main difficulties to deal with are the fact that perception of noise is often subjectively and culturally dependent and that its health consequences are not easy to determine. This paper first analyses the different sources of noise and their health effects. ...


    By Inderscience Publishers

  • What are the 4 Different Types of Noise?

    Noise comes in all shapes, sizes and sounds. It’s part of our everyday lives but before you can accurately measure it, you need to know what the different types of noise are. Here’s my advice. Whether it’s the innocent beep, a plane flying overhead or heavy machinery in your workplace, you ...


    By Cirrus Research plc

  • Noise at Work Regulations: 10 Years On

    Doesn’t time fly? It’s already been 10 years since Control of Noise at Work Regulations were introduced in the UK. But have you been following the legislation correctly? Here’s an overview of what the Noise at Work Regulations mean and some common mistakes you should be avoiding. Considering that legislation to limit ...


    By Cirrus Environmental

  • VIBRATION NOISE & ITS IMPACT ON HUMAN HEALTH

    Vibrational Noise is one of the major Environmental problems in Industrial Plants. The Noise Study under taken in Chinese Unit no.4 of Thermal Power Station (TPS) Jamshoro. The level and Frequency characteristics of the prevailing Noise recorded in detail, at Basement Area Feed Pumps, Turbines, Boilers, F.D.F, I.D.F & Compressors, and found that the level of Noise is higher at Boiler House and ...


  • Is a background noise survey worth doing? - Case Study

    As a plant owner or designer you will logically try to keep construction costs down wherever possible. So noise control features can easily be sidelined as an “optional extra” to be added later if the need arises. You might also be confident a new industrial plant will comply with all regulations on completion, but that doesn’t mean a future neighbour won’t complain about ...


    By Innova Global Limited.

  • The 6th biggest noise at work mistake…and how to fix It

    Health & Safety Managers everywhere know that managing noise risks isn’t as easy as it sounds. If you don’t, the company runs the risk of being fined by the Health & Safety Executive or sued by their employees for noise-induced hearing loss. To help you avoid the pitfalls, let’s recap of the 5 Biggest Noise at Work Mistakes. I’ll then talk you through the ...


    By Cirrus Research plc

  • NASA acts to reduce crawler transporter noise

    The United Space Alliance sought outsideassistance to evaluate and develop noise controlmeasures for NASA’s two CTs at KSC aspart of a modernisation and upgrading program.NASA selected Noise Solutions Inc. (ageneral acoustical contractor) and their subcontractorFaszer Farquharson & Associates ofCalgary, Canada to engage in this project. Thefirst phase of the sound study ...

  • ACOEM: DUO introduces the “Smart Noise Monitor”

    A new generation of Environmental noise measuring instruments, devoted to: Classical hand-held sound level meter measurements, using the built-in keyboard and screen or a wireless remote control (Wi-Fi, 3G), Short, medium or long-term stand-alone measurements, the operator having full remote control of the instrument. The “Smart Noise Monitor” DUO is ...


    By ACOEM

  • FTIR resolution requirements for industrial gas analyses

    FTIR Spectroscopy FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epitreatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D faciltities, FTIR is applied to combustion ...


    By CIC Photonics, Inc.

  • Accurate and efficient prediction of acoustical performance of noise barriers against transport noise pollution

    An improved acoustical wave propagator (I_AWP) technique with high-order absorbing boundary technique is introduced to evaluate the acoustical wave interaction for noise barriers, providing the dual benefit of preserving high numerical accuracy (boundary conditions have been properly treated) and obtaining high computational efficiency (using a larger time step in the calculation). The aim is to ...


    By Inderscience Publishers

  • Traffic noise assessment at National Highway 28 in India using FHWA model

    Federal Highway Administration's Traffic Noise Model (TNM) versions 2.1 and 2.5 have been analysed to determine their functionality and accuracy in the Indian context. Each of the resulting changes between predicted noise levels and observed noise levels are analysed, and the agreement diagram is developed between observed noise levels with predicted noise levels. During the measurements, traffic ...


    By Inderscience Publishers

  • How to manage Silence? A large scale noise management system

    Abstract Silence is the main noise management system for the Dutch highways and is used by the Dutch Ministry of Transport. The Silence system comprises IT infrastructure, environmental data, noise management software, an organisation, procedures and maintenance. Typical noise management system tasks involve data management, setup noise management software, software customisation, ...


    By Softnoise GmbH

  • Modelling of broadband noise radiated by an airfoil-application to an axial fan

    In this paper, a modelling of the broadband noise radiated by an axial subsonic fan is presented and validated. It is an extension of Amiet's model predicting the broadband noise generated by an isolated airfoil. Two sources are analysed, incident turbulence interaction noise and trailing edge noise. It shows the dominance of the leading edge noise. The broadband noise directivity for axial fans ...


    By Inderscience Publishers

  • Characterisation of multiple interior noise metrics and translation of the voice of the customer

    Several metrics represent noise characteristics such as engine idle, acceleration, and rough and smooth road noise because many factors affect vehicle noise. Engineers have to juggle several metrics to satisfy heterogeneous customer needs. All important design variables, which are often well correlated, should be included in translating the Voice Of the Customer (VOC) because the noise ...


    By Inderscience Publishers

  • Bringing communities on board with comprehensive noise management - Manchester Airport

    For Manchester Airports Group (M.A.G), upgrading their noise management technology was a unique opportunity to optimize operations across its network of UK airports and build on its already impressive and well-established Corporate Social Responsibility programme. CHALLENGE M.A.G needs to manage noise across four airports, improve operational efficiency and build stronger links with ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you