noise measurement Articles

  • Measurement Uncertainty in Environmental Noise Measurement

    Any measurement is meaningless without an uncertainty or tolerance associated with it. All measured numbers contain errors, and as such have an associated uncertainty. Disturbing as it is to an engineer, it is actually not possible to measure anything exactly. One definition of uncertainty is “A parameter, associated with the result of a measurement that characterizes the dispersion of the ...

  • A Guide to Noise Measurement Terminology

    There are 100s of different acoustic parameters that can be used during your noise measurements. Each parameter can tell you something different the noise you’re monitoring. How do you remember what all this noise measurement terminology means and what it does? We’ve already covered ...


    By Cirrus Research plc

  • 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 ...

  • Advice when choosing noise measurement for noise at work

    Noise legislation, designed to protect hearing and prevent noise nuisance, is becoming tougher and more widespread. It's a response to our increased understanding of the damage that noise can do to hearing, and the negative impact it can have on quality of life in the wider community. It has resulted in a growing need to measure noise and rising demand for noise measurement equipment. However in ...


    By Cirrus Research plc

  • Occupational noise - Noise control at the workplace starts with measurements

    We often automatically turn to personal protective equipment in order to restrict noise. Yet there are other solutions. NoiseAtWork software enables us to map the situation quickly. It has been scientifically proven that exposure to noise which exceeds 80 dB(A) causes hearing loss, but lower levels can also cause physical and mental complaints. Noise also has a disruptive effect on communication ...


    By Softnoise GmbH

  • Mitigating the effect of weather on environmental noise measurements

    Many factors play a part when creating a reliable environmental noise assessment. This paper provides a practical look at the effect of weather conditions on sound levels to raise awareness of the importance of meteorology in noise measurements. It references requirements for measuring meteorology in BS-4142:2014 and compares them to legislation from other countries. It also covers how variations ...

  • 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

  • Noise at Work, Workplace Noise and Issues with Noise

    Noise at Work Regulations to Control Workplace Noise The Control of Noise at Work Regulations (2005) became effective in 2006.  The Regulations are relevant to all employers who operate a noisy workplace and should be an integral part of any health and safety strategy.  ...


    By Pulsar Instruments 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 ...

  • 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

  • Vehicle–road interaction for interior noise measurement and evaluation

    Nowadays, one of the most valuable criteria of vehicle quality assessment is based on acoustic emission levels. A vehicle is judged comfortable depending on the noise levels transmitted inside. Consequently, there is a general attention to the design criteria aimed at improving the structural acoustic behaviour, to comply with the increasingly restrictive ergonomic standard. Therefore, it is ...


    By Inderscience Publishers

  • Optimus green – environmental noise measurement case study

    With the experience of over 35 years in land development, The Banks Group continues to develop land throughout England and Scotland for a variety of uses including surface coalmines, onshore wind farms, commercial and residential property schemes and sustainable wastemanagement facilities.With the aim of being one of the UK’smost successful land developers, it comes as no surprise that the ...


    By Cirrus Environmental

  • 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, ...

  • 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

  • Buying Noise Measurement Equipment: how to cut costs, not quality

    At a time when budgets are under strain, the Pulsar Model 14, ultra-simple digital sound level meter offers a compliant, reliable, yet affordable noise meter. It is the preferred choice of employers looking for a meter for general purpose use whilst meeting the “Noise at Work” Regulations and the requirements of IEC 61672 to Class 2.  The ...


    By Pulsar Instruments plc

  • 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

  • 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

  • Mitigation measures to minimise traffic–generated noise pollution in Metropolitan Kuwait

    Forty representative roadway locations were randomly selected for monitoring traffic flow and noise levels. At local streets, equivalent noise level (Leq) ranged between 56 to 71; at collector streets traffic areas 70 to 83; at arterial roadway 75 to 86 and at freeway roadway areas 75 to 88 dBA during day and night time respectively. Consequently, the level of noise pollution from traffic even at ...


    By Inderscience Publishers

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