There’s a lot of stuff online about STI and STIPA measurement. This article serves to provide a simple summary of everything you need to know in order to measure and determine the intelligibility of speech through a public address system. I recorded a webinar on this subject. This post is an excerpt of that video... continue reading.
Last week I found myself crawling around the floor with a tape measure. In September 2017 a new EU directive came in to force, which regulates the noise created by vacuum cleaners. With particular reference to sound power level, I reviewed the directive.... continue reading.