T37mon
Loop Quiet 2 Plus review: Loop’s most comfortable fit has the highest noise reduction levels to date
Which brings me on to the 27 dB of noise reduction – the highest level offered by any of Loop ... wonderful world of wellbeing for many of the UK’s top magazines, newspapers and digital ...
Simon Fraser University3y
Community Noise Equivalent Level (CNEL)
The major difference is that CNEL can be measured using ordinary dBA readings (see Sound Level Meter), as opposed to the computer calculation of Effective Perceived Noise Level used in ... is shown in ...