3D Printing

Much has been written about 3D printing.  For those who fit hearing aids, especially custom-molded types, or earmolds, many of us have been told that the shells have been 3D printed.  But, what does this actually mean?   What is 3D Printing? This is known also as desktop fabrication, or additive manufacturing.  It is unique…

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Categorization of PSAPs?

This post is a continuation of two previous posts relating to a proposed PSAP “Standard” (OTC Hearing Aid Standard, and PSAP Standard Review).  This post relates to a section of the proposed “Standard” relating to the “categorization of PSAPs” (personal sound amplification products).1     Categorization – Criteria for Standardization It is not clear what…

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