Patent ID: 6368289
Filing Date: 2002-04-09
Classification: A61B

Abstract:
An acoustic coupling apparatus for a hearing screening device adapted to transmit a first acoustic stimulus, said first acoustic stimulus having at least first and second frequencies, said acoustic coupling apparatus comprising:a coupling input adapted to engage said hearing screening device, said coupling input being adapted to receive said first acoustic stimulus and transmit at least a second response signal to said hearing screening device; at least a first earpiece adapted to be disposed proximate the ear canal of one of the ears of a subject, said earpiece including a stimulus input adapted to transmit at least a second acoustic stimulus to said subject and receive at least a first response signal from said ear of the subject, said first response signal having a first volume; a first passive attenuator adapted to attenuate said first frequency of said first acoustic stimulus; a second passive attenuator adapted to attenuate said second frequency of said first acoustic stimulus, said first and second passive attenuators in combination providing said second acoustic stimulus having a substantially balanced acoustic spectrum; and a response signal compensator adapted to regulate said first volume of said first response signal and provide said second response signal.