Occlusion effect - Wikipedia, the free encyclopedia: The occlusion effect occurs when an object fills the outer portion of a person's ear canal, and that person perceives "hollow" or "booming" echo-like sounds of their own voice. It is caused by bone-conducted sound vibrations reverberating off the object filling the ear canal. When talking or chewing, these vibrations normally escape through an open ear canal; most people are unaware of their existence. When the ear canal is blocked, the vibrations are reflected back toward the eardrum. Compared to a completely open ear canal, the occlusion effect can boost low frequency (usually below 500 Hz) sound pressure in the ear canal by 20 dB or more. This effect can be measured with a probe-tube microphone.[1]
A person with normal hearing can experience this by sticking their fingers into their ears and talking. Otherwise, this effect is often experienced by hearing aid users who only have a mild to moderate high-frequency hearing loss, but use hearing aids which block the entire ear canal.
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About Me
- Simply Jim
- Hearing impaired (tendency to appear dumb, dense, and/or aloof), orthodox atheist (believe faith more harmful than doubt), self depreciating sense of humor (confident/not to be confused with low self esteem), ribald sense of humor (satorical/mocking when sensing Condescension), confirmed bachelor (my fate if not my choosing), freakish inclination (unpredictable non-traditionalist opinions), free spirit (nor conformist bohemian) Believe others have said it better...... "Jim! You can be SO SMART, but you can be SO DUMB!" "Jim! You make such a MARTYR of yourself." "He's a nice guy, but...." "You must be from up NORTH!" "You're such a DICK!" "You CRAZY!" "Where the HELL you from?" "Don't QUITE know how to take your personality." My favorite, "You have this... NEED... to be....HONEST!"
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