Percentile Levels (Ln Values) in Noise
Percentile levels (Ln's) are used in measuring environmental noise levels, and are defined as the noise level that's exceeded for a percentage of the time (n%).... Read More »
What's new with BS 4142:2014
Environmental Noise Assessments Webinar
Time Weightings – What are they and why are they used?
Time weightings are used in measuring the RMS levels of noise and are used as an averaging time constant, usually fast, slow and impulse.... Read More »
What is Leq and how is it Measured?
Leq, or Equivalent Continuous Sound Pressure Level, is the constant noise level that would result in the same total sound energy being produced over a specific time period.... Read More »
Differences Between Class 1 and Class 2 Sound Meters
The class system in noise meters and sound level meters refers to the accuracy of the results given by the meter while measuring noise levels. ... Read More »
Difference between Lmax, Lmin and Peak
Lmin and Lmax refer to the minimum and maximum RMS level while Peak is the maximum crest of a sound pressure level.... Read More »
Hearing Protection Assessments using Octave Bands
Using Octave Bands is the most accurate way of performing hearing protection assessments, and ensures that your operators are using the correct protection for their environment. ... Read More »
Why do I need to calibrate my measurement equipment?
All electronic measuring equipment can "drift" over time, whether that be electronic scales, thermometers or noise meters just to name a few - but the reason you should calibrate your meter can vary depending on the type of equipment and the application it's used ... Read More »