And The Winner Is….(Part 1)

Whenever I fit hearing protection such as Musicians’ Earplugs, I verify the function using real ear measurement.  Of course, in the design of Musicians’ Earplugs there is a correct assumption that the acoustic gain that is generated will offset the insertion loss caused by the occluding earmold.  That is, if people have a 2700 Hz…

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Glutamate and How We Hear – Part 1

Glutamate is the main neurotransmitter substance in the cochlea and auditory system that make it work. Neurotransmitter substances are the chemicals that live their lives in between neurons in the synapse that allow neurological impulses- inhibitory (IPSPs) and excitatory (EPSPs)- to proceed (and feedback) along the neural chain up to the appropriate center(s) of the brain. Names…

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