[Training] New dates for Cirrus Environmental Noise Training

Due to demand, we’re announcing a new date for our popular Environmental Noise Measurement Workshop. This workshop is aimed at any professional requiring either an introduction to or a refreshment of the principles of environmental noise measurement. The next date will be the 13th September 2018 and the course will be held at one of our most popular venues, York Racecourse. This one-day Read More…

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What is reverberation time and how it is calculated?

What is reverberation time and how is it measured?

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 Read More…

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Calculate Reverberation Time (RT) with the new NoiseTools Module

Calculate Reverberation Time with the NoiseTools RT Module

Introduction to the Reverberation Time Module We’re pleased to announce the release of our new NoiseTools extension module which allows for the calculation of reverberation time in accordance with ISO 3382-2:2008. Using information measured using a suitable Optimus Sound Level Meter, the module allows the calculation of RT60, RT30 and RT20 values from either an interrupted or impulsive noise source. The module also Read More…

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What’s the difference between echo and reverberation?

What’s the difference between echo and reverberation?

This is a question that we get asked quite regularly, especially from customers who are coming across the measurement of reverberation for the first time. I recently came across a simple, clear explanation that was written by Harout Taghilian who is an Acoustic Consultant at Ramboll. Harout wrote: A lot of people are confused about the difference between reverberation and Read More…

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Health & Safety Event 2018: The Future of Noise & Vibration Monitoring

optimus+ sound level meter

Cirrus is excited to be exhibiting at this year’s Health & Safety Event 2018 takes place at Birmingham’s NEC from 10th to 12 April. We’ll be unveiling new products, features and services to provide you with a complete solution noise and vibration at work measurement solution, as well as celebrating our shortlisting as finalists in the Safety & Health Excellence Award for Campaign of the Year.

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Traceable calibration of vibration meters

Traceable calibration of vibration meters

If you are using vibration measurement instruments to meet regulations such as The Control of Vibration at Work Regulations, it’s essential that your equipment is measuring accurately and that you are getting data on which you can rely. As with any measurement equipment, calibration is an essential part of the process of gathering accurate data and making informed decisions as Read More…

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New Vibration Meter Calibration Services

New Vibration Calibration Services from Cirrus

New Vibration Calibration Services from Cirrus Research Cirrus is pleased to introduce a new offering to its range of calibration services which now covers the verification of vibration measurement instruments. This new capability offers traceable calibration for vibration measurement instruments, such as those used for Hand-Arm Vibration (HAV) and Whole-Body assessments and gives users who are measuring both noise and Read More…

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World Hearing Day 2018: Hear the Future and Prepare for It

World Hearing Day 2018 graphic

It seems that there literally isn’t a day goes by that there isn’t some kind of awareness campaign, anniversary or PR-driven message. National Sausage Week, Shop ‘Til You Drop Day, Peculiar People Day – you name it, somewhere in the world we celebrate it. One day however that is a little closer to home for me takes place this week March 3 – World Hearing Day 2018. 

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Cirrus Helping to Stop Residents Getting in a Lather Over Car Wash [Case Study]

car being hand washed

Environmental noise is part of every-day life, from traffic in city centres, children playing at school break time to church bells ringing on a Sunday morning. None of these activities may sound particularly ear-shattering but they have one thing in common – they have all attracted noise nuisance complaints at one time or another. Not every noise is deemed a Read More…

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