This is the second of two articles addressing the question of how to test the quality of loudspeakers. My recently-published article in the LIS2017 magazine inspired me to write about this in my blog. In this second part, we get more into the implementation.... continue reading.
Recently, the LIS2017 magazine published my article about Quality Control EOL testing of acoustic devices. This inspired me to share the information in this blog. I divided the topic into two articles. An understanding of the basics and careful planning will prevent you from having to struggle in the latter stages. In this first part I will guide you through the design and preparation of the test and the test environment. The second part will cover system calibration & maintenance.... continue reading.
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.