Questions & Answers
LAS. LAF. LCS. LCF. These are common terms you probably see when taking a noise measurement with your sound level meter. The “F” and “S” indicate the different Time Weightings used for that measurement but what do they mean? Expand your Noise Knowledge!Signup to the NoiseNews blog for the latest article updates straight to your inbox. Email Send Message
What is an Integrating Sound Level Meter? This is a common question we get asked when it comes to choosing noise measurement equipment. Here is a explanation of an Integrating Sound Level Meter and how it can help you with your measurements. Expand your Noise Knowledge!Signup to the NoiseNews blog for the latest article updates straight to your inbox. Email Send Read More…
Definition: A Type Approved Sound Level Meter is a noise measuring instrument that has been tested and verified as meeting a standard, such as IEC 61672-2, by a recognised testing laboratory, such as the PTB in Germany, the LNE in France or Applus+ in Spain. Explanation: A good quality sound level meter from a reputable manufacturer will have been designed Read More…
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 standards to ensure that it meets the performance claims of the manufacturer. The laboratory will test a number of samples Read More…
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.
We’ve had a question that has been asked through our Blog form and the question is: “How we can calculate average for a large data (e.g.24 hours data records of per second each) after downloading multiple files from the meter. Simple averaging can be produced will not represent the level of energy of a record. For example, 45, 46, 48, 43, Read More…
Throughout 2012 we’ve posted  information and answers to various questions from our customers, distributors and sales team on our NoiseNews blog. The Top 10 blog posts have now been collated from the most popular read by our customers and website visitors and we’ve made this into a book for  you to download. Over the past year, the blog has seen Read More…
One of the commonly asked questions that we have is “I’ve got a new PC. Will the Cirrus software program X work?”. There are many different versions of Windows in use and we still see customers using Windows 2000 or even 98SE. Our current software programs, NoiseTools, Deaf Defier3, dBLink, Noise-Hub and the SoundSign software will work with most recent Read More…
Sunday night was the 46th Superbowl played between the New York Giants and the New England Patriots at the Lucas Oil Stadium in Indianapolis, Indiana. The National Institute for Occupational Safety & Health (NIOSH) who are based in Atlanta, Georgia set up a Twitter stream (#noiselevel) and asked anyone who was at the game to measure the noise levels using Read More…
When more detailed information about a complex sound is needed, the frequency range of 20Hz to 20kHz can be split into sections or bands. This is done electronically within a sound level meter.
