The marketing team at Cirrus took a trip to a heritage railway to see which railway noises were the loudest. Was it the steam train? Was it the diesel train? Or was it something else entirely? Read our article to find out.
Archive | Noise Measurement
Noise pollution and its effect on the oceans
TIME TO MAKE WAVES AS NOISE SLOWLY KILLS OUR OCEANS Most people who have access to any form of social media or news outlet have become increasingly aware over the last few months, that we are killing our oceans with pollution – plastic, oil, sewage – but there is another form of pollution that doesn’t make the headlines quite as Read More…
What’s the difference between a sound level meter and a noise dosimeter?
I’m relatively new to the world of acoustic measuring and noise measuring equipment, and one of the very first questions I found myself asking was “what’s the difference between a sound level meter and a noise dosimeter?” Thankfully, the distinction is relatively simple and a complete novice like me can get to grips with it. So if you’re looking to Read More…
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 Read More…
Calculate Reverberation Time (RT) with the new NoiseTools 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…
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…
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 Read More…
NoiseTools 1.8 is now available – Find out what’s new in the Cirrus NoiseTools software
We’re pleased to announce that the new version of NoiseTools, the Cirrus software that is supplied with our noise measurement instruments, is available for download. This new version is v1.8.0 and can be downloaded, free of charge, from the Cirrus Website. This new version of NoiseTools incorporates a number of updates and enhancements over the previous version, v.1.7.2, as follows: Read More…
Introducing Octave Band Filters for the doseBadge5 Noise Dosimeter
We’re pleased to announce that the Cirrus doseBadge5 Noise Dosimeter now includes 1:1 Octave Band Filters as standard*, adding to the already comprehensive set of measurement data that the unique doseBadge5 can provide. The doseBadge5 is already the best specified dosimeter available with multiple measurement channels, comprehensive data logging, Bluetooth® wireless communications and all of the unique features of the previous generations of Read More…
Sound Level Meter Apps – How Accurate Are They?
There has been a growing awareness of the availability and application of sound level meter apps providing noise measurement functions. But how accurate are sound level meter apps when undertaking noise measurements? We did some research to look at the options.
