The increasing power of modern wind turbines often leads to an intensification of tonal noises. That issue becomes particularly apparent in practice when rising noise levels interfere with operation and can result in yield losses. Our active damper ADD.Sound reduces tonalities across the entire frequency range. By generating precisely controlled counter-vibrations on the gearbox or in the hub, tonalities are compensated for across the entire speed range – directly at the source. With ADD.Sound, we are technology and market leaders in active damping: For many years, we have successfully reduced the tonalities emitted by the tower and rotor blades, while ensuring compliance with legally mandated noise limits.