What is Type or Pattern Approval?
Type Approval, or Pattern Approval, is a method where a recognised test laboratory, such as the PTB in Germany or LNE in France in the case of sound level meters, tests an instrument against a set of recognised and published...
Control of Noise at Work Regulations – A summary of what you need to measure
What do the regulations require you to do? The Control of Noise at Work Regulations 2005 require employers to prevent or reduce risks to health and safety from exposure to noise at work. Employees have duties under the Regulations too....
Measuring Noise in the Snow – Does it Affect Your Noise Measurements?
With the recent cold snap that has hit the UK, Cirrus Research customers have raised a few questions about how wet weather and low temperatures could affect their noise measurements.
Acoustic Editor – Short Leq processing software
Please note that Acoustic Editor for Windows has been superseded by the NoiseTools program and the Noise-Hub software platform. Please contact Cirrus Research plc if you would like more information about these current programs and the instruments that they support....
Find the best sound level meter for you with our new optimus selector
Our optimus sound level meters cover a wide range of applications and have a varied selection of features which means that there’s an optimus sound level meter that is ideal for every application. But the question is often asked “Which...