Other causes: Build-up of earwax, accidental deposit of an external object in the ear, head injuries, tumors, which include noncancerous (benign) growths in the ear, can also affect hearing. Likewise, hearing aids are assistive technology, but with a huge difference - hearing aids will not give you normal hearing, they will only help you hear better. The baby boomers who grew up blasting rock and roll music are now facing the consequences of this act, synapse xt.