Hearing loss that does not cause tinnitus is irreversible. Hearing loss that does cause tinnitus is reversible. Silent environment (below 10 dB for 48 hours a day, everyday) is the key and then tinnitus is the healing process of the lost hearing. Without silence, tinnitus will remain an unsuccessful healing story. They body tries constantly to heal lost hearing, but without silence healing with be unsuccessful and tinnitus and hearing loss will remain.