Etymotic Research, Inc.

Northwestern University

Jonathan Siegel

Mead C Killion

Sumitrajit Dhar

Viorel Drambarean

Steve Iseberg

Steve Viranyi

Dan Mapes-Riordan

Certain embodiments provide a hearing testing probe apparatus. The hearing testing probe apparatus includes a probe tube detachably coupled at a first end to a probe body and extending through a center hole in an eartip to align proximate a face of the eartip at a second end. The probe tube includes a plurality of stimulus lumens for receiving and carrying stimulus from the first end of the probe tube for output at the second end of the probe tube. The probe tube includes one or more microphone lumens for receiving and carrying one or more measured responses from the second end of the probe tube to one or more microphones at the first end of the probe tube.

Hearing testing probe apparatus with digital interface

Methods and systems for rapidly determining and displaying the depth of ear tip placement to improve the reliability of hearing tests may comprise in a hearing assessment system comprising a control system and a probe with a sealing ear tip, a microphone, and a sound source: measuring a pressure versus frequency of an ear canal, determining a first half-wavelength frequency of the ear canal using the measured pressure versus frequency and/or or from the phase of the ear canal reflectance, and calculating a distance between the hearing probe and an eardrum in the ear canal based on the determined first half-wavelength frequency. Subsequent measurements of the ear canal may be performed using the calculated distance. The calculated distance may be stored in a memory in the control system for the subsequent measurements of the ear canal. The calculated distance may be displayed on a gauge on the control system.

Method and system for rapidly determining and displaying the depth of ear tip placement to improve the reliability of hearing tests

An acoustic probe calibration system includes a waveguide and a moveable piston. The waveguide extends from a front end to an opposite back end along a longitudinal axis and defines a cavity extending from the front end to the back end. The piston is disposed within the cavity of the waveguide and is configured to move within the cavity of the waveguide along the longitudinal axis of the waveguide. An acoustic probe is inserted into the waveguide to define an interior chamber between the acoustic probe and the piston. The acoustic probe determines pressure responses to acoustic stimuli inside the interior chamber. The piston is moveable to a plurality of different positions within the waveguide to change a size of the interior chamber such that the acoustic probe can determine the pressure responses within the varying-size interior chamber.

Calibration system and method for acoustic probes

Growing community of inventors

Skokie, IL, United States of America

Jonathan Siegel