#100 in a series of articles about the technology behind Bang & Olufsen loudspeakers

I’ve started working with a number of my colleagues on a series of videos for internal training at Bang & Olufsen. They were kind enough to make some of these videos publicly available.

This one explains some basic concepts of human hearing in the frequency domain, including how our hearing changes with level, the reason we use “loudness” processing in loudspeakers, and psychoacoustic masking.

In case you’re interested in looking into this a little further, the curves I show there are from the Robinson-Dadson experiments, not the Fletcher-Munson version. An interesting place to start learning about the history of this is the March, 1962 issue of Wireless World magazine, which includes this plot comparing the two.