noise measurement data Articles

  • Measuring Road Traffic Noise

    As part of an overall measurement programme to monitor road traffic noise in Århus (Denmarks second largest city), the Local Authority set up a noise measurement station on one of the major approach roads to Århus Harbour. This noise measurement station continually measures noise levels and can give a round-the-clock picture of noise level variations. Like most other districts, Århus Local ...

  • New Environmental Noise Measurement Workshop from Cirrus

    We’re pleased to announce the launch of a new 1-day Environmental Noise Measurement Workshop, aimed at any professional requiring either an introduction to or a refreshment of the principles of environmental noise measurement. This one-day event that has been designed to give attendees an overview of Environmental Noise Measurement. This will cover the basics of sound, the ...


    By Cirrus Research plc

  • NoiseAid – Support for your Noise Nuisance Measurement & Management

    What is NoiseAid? NoiseAid is a web-based application that gives you, and your users, a quick and simple way to gather information about the noise sources that they are concerned about. Users can instantly log noise disturbances via any smartphone, tablet, laptop or desktop computer using the simple interface, adding notes when the noise has ended. Details of the noise sources ...


    By Cirrus Research plc

  • Reduction of Train Noise Monitored by New Measurement Station

    With increasing passenger and freight traffic, the strengthening of the rail traffic is an important and actual issue. For sustainable mobility, the reduction of noise pollution caused by trains is essential. All involved parties agree on one claim: Increase railway traffic, decrease railway noise! Additional to two already existing stations measuring road traffic noises, ...

  • Noise measurement in the fast lane! - case study

    Due to the nature of the Vehicle and Operator Services Agency (VOSA) work, noise is an inevitable by-product of its daily activities. Consequently to ensure the welfare of both its staff and the community in which it operates, VOSA undertakes regular noise assessments to ensure that the relevant regulations are being adhered to, thereby protecting both the environment in which it operates as well ...


    By Cirrus Research plc

  • 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 ...

  • A simple notch filter for removing high frequency noise in atmospheric measurements

    The experimenter occasionally encounters high-frequency (> 1 Hz) contamination in sonic anemometer data that adversely affects higher-order moment calculations. One has the option of applying a low-pass filter (either a simple, equally weighted moving average filter or any one of the sharper cut-off versions available today) to eliminate not only the unwanted frequency, but all frequencies ...

  • Measuring occupational noise levels at the 2014 Glastonbury Festival - Case Study

    Noise measurement specialist Richard Wilson of the The Event Safety Shop, along with a number of colleagues, measured and monitored occupational noise levels at the 2014 Glastonbury Festival to ensure that the noise exposure of festival staff and concession workers was in-line with the Noise at Work Regulations. To carry out the measurements, Richard and his team used the Cirrus  ...


    By Cirrus Research plc

  • Integrate noise measurements into your existing Process Monitoring and Control Systems.

    The ZE:908 is a small and lightweight power supply and acoustic conditioning unit for the Cirrus MV:200 microphone preamplifiers and MK:170 Outdoor microphone units. Many industrial plants have a variety of process sensors strategically placed around their site so that safety, environmental impact and efficiency can be monitored and managed, in real time, from one or more control rooms. The ...


    By Cirrus Environmental

  • Noise Pole Power Station Noise case study

    Equipment Summary Invictus Environmental Noise Pole Noise-Hub Noise Management Software Before the Cirrus System was installed we could never investigate noise complaints properly ...


    By Cirrus Environmental

  • Cirrus Research – Noise Measurement Pioneers for Over 45 Years [Video]

    Since 1970, Cirrus’ mission has been to make monitoring noise simple. More than 45 years later, we thought it was time to look back at our story so far and see what we have achieved. Join us by watching our video, which explores our history and what makes us the noise measurement pioneers that we are today. Cirrus Research ...


    By Cirrus Research plc

  • Urban Noise Monitoring in Madrid

    Dynamic mapping helps Madrid improve the quality of life for her citizens and visitors alike. With its 3 000 000 inhabitants and 2500 km of streets, Madrid is an excellent example of what can be done to improve human comfort related to urban noise. Since the late 60s, Madrid City Council has been working on noise problems. During this period, global environmental analysis has focused on how ...

  • Noise mapping of industrial sources

    Noise is often one of the environmental variables where it seems more difficult to guarantee full compliance with legal limits in complex industrial situations and/or in other multi-source environments. This paper describes the application of noise mapping techniques to industrial sources, such as factories, power plants, wind farms, showing the potential of its use, both at the design stage as ...


    By dBLab, Lda

  • Noise Mapping in Lille

    Lille, with a population of 1091 million inhabitants is the 4th largest agglomeration in France after Paris, Lyon, and Marseille. Situated at the heart of a network of 464 km motorways connecting six European cities (Brussels, Bonn, the Hague, London, Luxembourg and Paris), the metropolis of Lille also has the densest railway network of France after Paris. Pascal Thomas and his team of 8 ...

  • Noise Monitors and Meters

    Sound level meters Description and ApplicationsThe sound level meter is a lightweight instrument for the measurement of sound pressure level (SPL) in decibels. All ANSI-approved meters meet minimum requirements that include an A-weighted network, a slow-response meter characteristic, and a fully graduated scale with measurements ranging from 80 to 130 dBA. The Type II meter is most frequently ...

  • NoiseTools for Noise Nuisance Users

    At Cirrus, we’ve always looking for ways to enhance our products to better help our customers meet their noise measurement needs. The NoiseTools software that you are using with your Cirrus Noise Nuisance equipment is always being updated and enhanced with new functions and features all the time. At regular intervals, we will release a new version which contains these updates so to make ...


    By Cirrus Research plc

  • The Noise Doctor’s Review of 2016

    2016 is rapidly coming to a close and 2017 is almost upon us. New Year is always a time for reflection. With this in mind, I reviewed all the NoiseNews updates from 2016 and can now reveal the top 10 blogs that aim to educate, inform and entertain. Are you sitting comfortably? Then let us begin. Top 10 Blogs of 2016 10. The Big Bang Theory: What You Really ...


    By Cirrus Research plc

  • When Sound Becomes Noise

    Music to the ears of some can equally be perceived as unwanted, irritating noise to others – as illustrated by a recent news article about a Sydney pub forced to cancel live music on Sunday afternoons after five trouble-free years ...


    By Innova Global Limited.

  • Traffic Noise Mapping in Chile

    Against this backdrop of economic change, a two-year study got underway across three Chilean cities led by the Univ. Austral. and was supported by the Chilean Ministry of the Environment. Academically titled: “Development and analysis of noise maps of three urban agglomerations using modeling software”, the study concentrated on the Chilean cities of Coquimbo – La ...


    By Cirrus Research plc

  • Methods for Removing Signal Noise from Helicopter Electromagnetic Survey Data

    A geophysical analysis was conducted over the abandoned T&T subsurface mines and portions of the Muddy and Roaring Creek watersheds in northeastern Preston County, West Virginia. The data were collected using helicopter-borne measurements of frequency-domain electromagnetic (FDEM) conductivity (390, 1555, 6254, 25,800, and 102,680 Hz). Noise was a significant issue in the lowest frequency EM ...


    By Springer

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