![]() Tinnitus is a type of injury to the ear that causes a buzzing or ringing sound. One of the most important symptoms that can signal the onset of acoustic trauma is called tinnitus. Your doctor may test your response to different frequencies of sound to assess the extent of acoustic trauma. Difficulty hearing sounds at lower frequencies may occur later. In many cases of long-term sound damage, people first begin to have difficulty hearing high-frequency sounds. Sudden sounds above 130 decibels can damage the ear’s natural microphone, the organ of Corti.Īcoustic injury can injure the eardrum, along with the small muscles in the ear, particularly the tensor tympani muscle. The sensitive hair cells can lose their connections to the nerve cells responsible for hearing.Įar structures may also be directly damaged by loud noise. Injury occurs at the level of the inner ear. The main symptom of acoustic trauma is hearing loss. the total time the person was exposed to the sound.the pitch or frequency of the sound (higher frequencies are more damaging).the intensity of sound measured in decibels.Three important factors have a role in acoustic trauma. This is the estimated noise level of an average group conversation. Under 70 decibels or less is considered safe for ongoing listening. They’ll do this to help you assess whether the sounds that you encounter put you at a higher risk for acoustic trauma and hearing loss. Your doctor may provide an estimate of the decibel range of normal daily sounds, like an estimate of around 90 decibels for a small engine. People continually exposed to noise levels over 85 decibels are at an increased risk for acoustic trauma. encounter extremely loud sounds without proper equipment, such as earplugs. ![]() frequently attend music concerts and other events with high-decibel music.live or work where other high-decibel sounds continue for long periods of time.work at a job where loud industrial equipment operates for long periods of time.People at an increased risk for acoustic trauma include those who: ![]()
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