Marcel Kok is living in the Netherlands and is CEO of dBcontrol. This small company was founded in 2001 by two 2 persons who felt that there was a need for more detailed decibel measurements and communication about decibels at large live events. The main activity for dBcontrol is sound level measurements and control at live festivals, followed by consultancy and research on decibels. Nowdays the market focus is on large outdoor dance events in the Netherlands and Belgium and there’s also dBcontrol Norway in Trondheim. Marcel has a degree in Electrical Engineering at the University of Twente, Netherlands and has completed a MBA study. Work experience is in the field of acoustic consultancy. Sound engineering has been his hobby since 1982 till 2017, as a freelance FOH engineer he has seen many small venues around Europe. Besides working at dBcontrol, Marcel is a Ph.D. student at Ghent University in Belgium. Topic for his research is the use of the dB(C) as an indicator for the low frequency annoyance at large outdoor dance festivals.