The loud buzz of a crowd, the passing roar of vehicles or the hum of equipment can affect the intelligibility of voice messages. Similarly, music or messages can cause discomfort, when they are played too loudly in a quieter building.
Automatic Volume Control (AVC) technology helps to deal with these ambient noise changes. The PRAESENSA ambient noise sensor from Bosch changes the loudspeaker volume, according to the ambient noise levels and automatically solves the dilemma of a system being too loud in a quiet environment versus too soft in a noisy environment.
