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EPL PXI System

Developed by the engineering staff at EPL and schematized below, the combined stimulus-generation/data-acquisition system consists of 1) commercial hardware components costing roughly $16,000, 2) the EPL cochlear function software, available for free download, 3) two EPL custom hardware devices requiring some simple circuit assembly (microphone amplifier details) and 4) the EPL acoustic system, which can be assembled from a) commercial miniature dynamic earphones and a hearing aid microphone and b) a molded plastic shell obtained via commercial stereolithography using an EPL-designed STEP file available for free upon request; total cost for one acoustic system is ~$150.  

Download EPL PXI System Overview (PDF).