The Mysterious Cartilaginous/Bony Ear Canal Junction

Research related to the occlusion effect (OE) suggests that the OE is minimized when contact of the ear insert (closed coupled in this case) is made with the bony ear canal1,2.  Measurements of the OE for various in-canal devices are numerous and essentially support this conclusion.  But, to what extent does the cartilaginous/bony ear canal…

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Ear Impression Otoblock Myth Debunked – Part 3

  “Do Not Let the otoblock come in contact with the eardrum.”  Instructions such as this to individuals taking ear impressions has been the topic of post 1 and 2 providing evidence busting the ear impression otoblock myth suggesting such placement.   Otoblock to Protect the Eardrum?   The purported purpose is to protect the…

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