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Sound Level Monitoring Applications

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    Sound level measurement for safety regulations

    Hand held instruments for the measurement of an employee`s noise exposure. Frequency analysis within Sound Level Meters can also be used to determine the correct selection of hearing protection.

    By Casella based in Kempston, UNITED KINGDOM.

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    Noise monitoring for workplaces

    Measurement of the noise exposure of an individual over the working day. They should be used for mobile workforces where it is not always practical to measure with a hand held Sound Level Meter.

    By Casella based in Kempston, UNITED KINGDOM.

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    Sound instrumentation for calibration

    Unfortunately, the word calibration has ended up having two meanings; viz. to describe the use of a sound calibrator in connection with a measurement and to describe periodic verification which is carried out in a Calibration Laboratory.

    By Norsonic AS based in Lierskogen, NORWAY.

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    Sound instrumentation for measuring sound

    What is the difference between sound and noise? Clearly more than the loudness only. Although an aircraft is very noisy, a mosquito at night-time can be more than enough to spoil a good night`s sleep. Instead of looking at the loudness only as a criterion for the degree of noisiness, we shall simply regard noise as what it is - viz. unwanted sound.

    By Norsonic AS based in Lierskogen, NORWAY.

  • 2-Channel sound insulation for building acoustics

    Façade sound insulation is measured like sound insulation between rooms, except that one `room` is actually open space. The sound level is measured inside the receiving room and outside the façade of the building. The level difference is then corrected for the influence of the reverberation time and background noise level in the receiving room. Finally a single-number index is calculated by averaging over all the frequency bands. A loudspeaker source can be used for the measurement, giving a choice of sound incidence angle. But in practice, placing the loudspeaker and getting a high enough sound level can be difficult.

  • Sound level meters & Noise dosimeters for Entertainment & music industry

    In the UK from the 6th April 2008 the Control of Noise at Work Regulations apply to the entertainment and music sectors. Applying these new regulations is a challenging task as it requires a significant shift in both attitude and practice across the industry.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Sound level meters & Noise dosimeters for Noise at work industry

    Occupational noise is one of the most overlooked risks in the workplace. Ignoring this hazard can result in fines or prosecution from the Health & Safety Executive. You are also open to action from Personal Injury Lawyers seeking compensation for Industrial Deafness Claims. Why? Exposure to excessive noise levels can cause noise-induced hearing loss or tinnitus. Hearing damage is irreversible, so it is vital to ensure you are protecting your employees and your business.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Sound level meters & Noise dosimeters for Motorsport noise measurement and monitoring industry

    Our noise measurement instruments are used at high profile circuits and venues around the world, helping owners, operators, teams and officials comply with noise limits and regulations. With a range of noise measurement tools including drive-by test systems with permanently installed and portable monitors for continuous measurement of vehicles, to handheld sound level meters for pre and post race scrutineering, we can help you monitor and control your noise levels on track, in the pits and in the surrounding environment.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Noise monitoring for industrial plant monitoring

    Industrial sites are subject to regulations that limit sound and vibration levels at their perimeter and with regard to third parties. The taking of measurements at intervals remains one of the most frequently used methods of evaluating the noise and vibration levels of such sites.

    By ACOEM based in Limonest, FRANCE.

  • Sound level meters & Noise dosimeters for Noise ordinance monitoring industry

    Noise Monitoring Equipment for Law Enforcement Agenices; Noise ordinance covers the monitoring of noise in major urban areas in the US. Common complaints from residents include: Barking dogs, Noisy neighbours, Loud music, Construction noise, Industrial noise, Transportation noise.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Noise monitoring for airports

    Airports, small and large, use noise and operations monitoring systems to reduce the noise of flight operations in the surrounding community.  Noise monitoring is generally used to evaluate noise abatement programs and to develop aircraft departure and arrival procedures that minimize the impact of aircraft noise based upon altitude, flight path, and time of day.  Noise monitoring is linked with radar tracking so that specific aircraft can be identified when noise limits are exceeded and so operational requirements can be enforced.
    Larson Davis provides noise monitoring systems to airports, consultants, and system integrators with the technology and support to make a successful program.

    By Larson Davis, a division of PCB Piezotronics based in Depew, NEW YORK (USA).

  • Low frequency noise analysis using XL2

    The Data Explorer PC software for the XL2 Sound Level Meter now includes a series of professional tools for detailed analysis of low-frequency noise (LFN). The graphical representation of time varying frequency components offers an efficient process for identifying the presence and level of LFN. Also the associated high quality audio recording supports further correlation with the objective measurement data. The new features are particularly useful in the calculation of immission levels which is defined as the cumulative noise energy to which an individual is exposed over time. Exposure to low-frequency noise over extended periods can lead to a range of health problems including cardio vascular disease, insomnia and depression. The sources of low frequency noise can often be attributed to electricity sub stations, chiller plants and incinerators with continuous noise at frequencies below 200 Hz. XL2 Sound Level Meter records all Data Measuring LFN requires a class 1 sound level meter

    By NTi Audio AG based in Schaan, LIECHTENSTEIN.

  • Sound level meters & Noise dosimeters for Construction industry

    Construction can be a industry where high noise levels are common and where both occupational and environmental noise monitoring may be needed. The measurement and monitoring of noise from construction sites can be carried out using a range of different instruments depending upon the time over which the measurements need to be made.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Sound level meters & Noise dosimeters for Workplace noise monitoring industry

    Completing a Noise Risk Assessment can seem like a big task at first. That`s why our Noise Experts have provided advice based on their years of experience. Find answers to common problems such as "Do I have a noise problem?" and "What do the Regulations require me to do?" We`ve also recommended a range a products to help get you started with workplace noise monitoring.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Noise monitoring solutions for sound intensity mapping

    Sound Intensity is the measure of acoustic energy passing through a unit area. By integrating over a surface enclosing an object under test, you can calculate the object`s sound power. This can be done regardless of background noise, allowing convenient, in situ measurements of sound power. Other advantages of sound intensity measurements include the ability to determine the directionality of sound, and to quickly localise noise `hot spots`. Mapping software takes this a stage further by providing you with a contour map of noise levels to provide intuitive documentation of noise problems.

  • Environmental Noise Monitoring

    The XL2 Sound Level Meter provides the dedicated solution for monitoring environmental noise in industry and communities. It measures levels and detailed spectral information in parallel and stores the data on an SD card for post-processing and reporting. A linear audio file (wav-file) may be recorded for detailed simultaneous analysis. The type approved class 1 sound level meter offers a flexible handheld instrument with accurate and reliable measurements. Data recording can be scheduled to occur at pre-determined times or automatically triggered when pre-determined levels are exceeded. Applications: Unattended noise monitoring stations (mobile or fixed installations) Annoyance assessment of noise according to ISO 1996-2 Construction noise measurements meeting the Section 61 notice (UK) Urban noise monitoring and noise mapping according to directive 2002/49/EC Verifying boundary noise level emission Advantages Handheld and compact design for field applications and stand-alone oper

    By NTi Audio AG based in Schaan, LIECHTENSTEIN.

  • Sound level meters & Noise dosimeters for Aircraft & airport noise monitoring industry

    In most applications, the object of an Airport Noise Monitoring System is to monitor and ultimately, manage and control the noise levels generated by aircraft movements in and around the airport.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Sound Insulation solutions for building acoustics

    Sound energy does not remain in the room where it is produced, but propagates throughout the building by any available path, intruding into other rooms as noise. Each country has its own standards of sound insulation in buildings, but it is measured in the same way all over the world. The noise levels in the two rooms under investigation are measured and subtracted, and the level difference is corrected for the influence of the reverberation time and background noise level in the receiving room. The measurements and calculations are made in 1/1- or 1/3-octave bands and averaged over a number of positions in the rooms. Finally a single-number index is calculated by averaging over all the frequency bands.

  • Sound level meters & Noise dosimeters for Environmental noise monitoring industry

    Environmental Noise is one of the fastest growing areas of noise monitoring, mapping and control. The EU has introduced a number of Directives aimed at increasing the level of information about Environmental Noise across the EU. In 1996, data from the EU Green Paper on Future Noise Policy estimated that around 20% of the EU`s population, or close to 80 million people, suffer from noise levels that experts consider to be unacceptable. Most of these people become annoyed and suffer from sleep deprivation, which experts fear will lead to adverse health effects. An additional 170 million citizens are now living in so-called "grey areas" where the noise levels cause serious annoyance during the daytime.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

  • Sound level meters & Noise dosimeters for Industrial hygiene industry

    Occupational noise is one of the most overlooked risks in the workplace. Ignoring this hazard can result in fines or prosecution from the Regulator, as well as leave your business vulnerable to compensation claims. Why? Exposure to excessive noise levels can cause noise-induced hearing loss or tinnitus. Hearing damage is irreversible, so it is vital to ensure you are protecting your employees and your business.

    By Cirrus Research plc based in Hunmanby, UNITED KINGDOM.

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