Damage hearing by such a loud sound Cortexi effects to improve hearing how to use works so that the ears at some point see the sound as lower than it is due to a level of sensitivity lower. The longer the ears are exposed to loud sound, the more the volume will certainly have to increase and the evil spiral will certainly continue. The world icon of deafness. Tinnitus is a constant beeping or buzzing that a person also hears in the absence of loud noises.