sound measuring Articles

  • Exporting sound measurement solutions to the Southern Hemisphere

    Building Export Sales in the Southern Hemisphere Simon Rehill, General Manager of Pulsar Instruments - a designer, manufacturer and supplier of world-leading occupational sound measurement solutions for 50 years - has been travelling the southern hemisphere recently catching up with some of our reputable Sales Partners in the Antipodes and South Africa. During his trip, he met with our ...


    By Pulsar Instruments Plc

  • Sound Measurement Software - Pulsar AnalyzerPlus Software Update

    Pulsar Instruments' AnalyzerPlus Software has changed. Following our customers feedback we’ve completely overhauled our licence free sound measurement software to give users a quick and simple way to download and analyse their noise data. For many customers, the most difficult thing about measurement is producing a compliant report, so our new software offers them a straight-forward way to ...


    By Pulsar Instruments Plc

  • The Significance of Sound Diffraction Effects in Predicting Acoustics in Ancient Theatres.

    Abstract This paper examines the effect of sound diffraction in predicting sound propagation in ancient theatres. Few simulation studies to date concerning ancient theatre acoustics were conducted with diffraction effects. While sound diffraction effects in ancient theatres are known qualitatively, rarely have they been quantitatively documented. In this paper, the ancient theatre of ...

  • Canarina CUSTIC software · A-weighting · noise pollution · commands 14

    Export Picture.- With this command you will be able to export images and pictures (BMP files). These images will contain the background picture and the simulation results.   Many programs, computer applications and word processors (AutoCad, 3d Studio, ArcView, MS Word,...) import BMP files. You will be able to load images generated by ...

  • Could loss of hearing cost your business money?

    Sound measurement equipment manufacturer, Pulsar Instruments Plc, are warning employers of the dangers of hearing damage due to excessive noise levels in the workplace.  Loss of hearing can happen in a wide range of industries such as manufacturing but also in the entertainment and construction industries. Recent court cases ...


    By Pulsar Instruments Plc

  • Groundwater-recharge estimation using a surface electrical resistivity method in the Himalayan foothill region, India

    A new method for the estimation of groundwater recharge is presented using a surface resistivity method and isotope technique. A linear relationship was obtained between the resistivity of the unsaturated top layer and the recharge estimated using a tritium tagging technique for the piedmont zone in the Himalayan foothill region, India. The relation can be used for the estimation of recharge ...


    By Springer-Verlag GmbH

  • EPA`s 2008 Report on the Environment

    The EPA 2008 ROE is an update of the draft ROE that was released in 2003 and it builds on the foundation of that draft report. EPA’s first experience with the 2003 ROE resulted in a better understanding of which indicators are robust enough to include in the EPA 2008 ROE. EPA was committed to identifying the best available set of scientifically sound indicators for the EPA 2008 ROE in an open and ...

  • Are Those Inexpensive iPad Sound Measurement Apps Any Good?

    Are those inexpensive iPad sound measurement apps any good? Are they as accurate as a properly calibrated $2,000 type 2 sound level meter? Let's review three separate studies, and an article: Study #1 In early 2014, NIOSH reviewed 192 sound measurement apps. NIOSH concluded, ...

  • Measuring Sound Absorption: Considerations on the Measurement of the Active Acoustic Power

    For the measurement of the sound absorption coefficient a large number of methods is available. These methods have in common that all of them rely on an overall sound Held model, i.e. a model that describes the whole sound field in front of the surface under investigation. Examples are the diffuse sound field model in the reverberation room method according to ISO 354 [ 1 ] and the plane wave ...


    By Soundinsight BV

  • What is reverberation time and how it is calculated?

    What is the reverberation time of a room? Reverberation time is the time required for the sound to “fade away” or decay in a closed space. Sound in a room will repeatedly bounce off surfaces such as the floor, walls, ceiling, windows or tables. When these reflections mix, a phenomeon known as reverberation is created. Reverberation reduces when the reflections hit ...


    By Cirrus Research plc

  • Case study - Measuring impact of traffic noise in apartment living room

    Problem An apartment on the ground floor of a two story house in the city lies close to a busy road. The living room in the apartment is facing the road, and the inhabitants are bothered by traffic noise, especially in the morning and the afternoon, when the traffic is the heaviest. Traffic noise could be clearly heard when standing in the living room. The facade facing the city ...


    By Norsonic AS

  • Sound level meters from PCE Instruments for any application

    PCE Instruments manufacture and sell high-quality sound level meters for any application: from small hand-helds for home use to portable sound level cameras for localisation of a source of noise in large buildings. A high number of people has to deal with inacceptable noise levels in private and/or work environments. Noise is a very individual parameter and is not clearly definable. It is ...


    By PCE Instruments

  • Police Use Casella Equipment To Assess Noise Levels - Case Study

    Leicestershire Police has upgraded its noise monitoring equipment, selecting a Casella Health & Safety Kit in order to help to protect its officers. A global specialist in occupational health and environmental risk management solutions, Casella has supplied a 62x series sound level meter and a dBadge Noise Dosimeter to the regional police force, both of which are known to be easy to use, ...


    By Casella

  • What are decibels, the decibel Scale and noise measurement units?

    What is the decibel scale The human ear is an extremely versatile and amazing hearing device. It has a clever in-built mechanism that reduces its own sensitivity as the sound level rises and it also has the remarkable ability to handle an enormous range of sound power levels. It can hear the sound of a pin dropping close-by as well as the roar of a jet engine far away.  ...


    By Pulsar Instruments Plc

  • Multifunctional environmental meter for 5 measuring parameters – sound, light, wind temperature and humidity

    Environmental factors influence humans, animals and plants as well as buildings and their surroundings. The condition of stored goods, production processes, machines, apparatuses and buildings need to be protected. It is important to maintain a room climate that meets the needs of the users but at the same time does not cause any climate-related damage to the building. PCE Instruments has added ...


    By PCE Instruments

  • Monitoring of a spark ignition engine malfunctions using acoustic signal technique

    This manuscript presents a fault detection method for a SI engine at variable speeds using acoustic signal technique. Two faults were addressed: misfire and the malfunction of manifold absolute pressure (MAP) sensor. The main objective is to detect these two faults by measuring the sound pressure level (SPL) in decibels (dBA) at different engine speeds and one octave frequency bands in the ...


    By Inderscience Publishers

  • Noise at Work Regulations - making sense of them & measuring sound

    Tips on how to measure sound and manage the noise measurement process Join the noise experts Pulsar Instruments on their face-to-face training courses and gain vital insight into how to manage the noise measurement in the workplace under the Noise at Work Regulations.  The one-day courses, delivered by Pulsar Instruments, are intended to meet the needs of those new to noise ...


    By Pulsar Instruments Plc

  • Reduction of roof rack noise and vibration

    The noise and vibration design of automotive add-on component roof rack was investigated. Different modification options were evaluated which include mounting location alteration, mounting damping change and material revision. Results from experimental modal analysis and sound pressure spectrum measurement in a wind tunnel indicate the direction of design modification for reduction of the roof ...


    By Inderscience Publishers

  • Hearing Loss for Workers is Preventable

    Hearing Loss In The Workplace In the U.S., OSHA has set regulations on worker noise exposure. The usual sound measurements method is to use a noise dosimeter attached to a worker that measures noise exposure as the person moves about the work area. However, this does nothing to identify the source ...

  • Different cost-benefit analyses in The Netherlands for the European Water Framework Directive

    Since 2005, several cost benefit analyses have been performed for the European Water Framework Directive (WFD) in The Netherlands. These analyses had in common that they were meant to support the decision-making process by informing policy makers and making the trade-offs as transparent as possible. The analyses also anticipate questions from the Dutch Parliament. Nevertheless, each time the ...


    By IWA Publishing

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