Deploying bright, dark and quiet sound zones
The aim of the MONICA sound field control system is to provide an optimised sound field in the audience area, the bright zone, while minimising the exposure to noise in neighboring areas, the dark zones. Thus, at the front of the stage, the music can be louder for a better concert experience, whereas the sound levels (low frequency levels) are reduced outside the concert area and in a selection of quiet zones inside the area. The quiet zones are established to provide areas where staff and visitors are able to communicate regardless of the sound level of the music.
A simplified version of the system is demonstrated at Tivoli’s main outdoor stage area with a set-up of 18 loudspeakers, 10 IoT sound level meters and four environmental sensors. Based on the information coming from sensors, a sound heat map is created showing an estimate of the sound level based on the sound pressure and weather conditions. The command centre can monitor the status in the MONICA COP.