Sound and Noise Sound intensity, Sound pressure and Sound pressure level .. Loudness is an intuitive concept, a loud noise usually has a larger pressure variation and a weak one has a smaller pressure variation. Depending on what we are looking for – the cause, the effect or the perception of noise – we use different […]
Noise Measurement Procedure The BS 4142:2014+A1:2019 Technical Note was published by the Association of Noise Consultants (ANC) Good Practice Working Group. BS 4142:2014+A1:2019 is the latest iteration of a standard which was first published in 1967, designed to consider the effects of industrial sound with appropriate consideration to the character of that sound as well
Noise barriers can be much more effective than distance in reducing noise from road or rail traffic. In its simplest form a noise barrier can be a continuous close boarded wooden fence, with a mass of not less than 16 kg/m2. There is relatively little point in increasing the weight of the barrier beyond this because