TE: Transient-Evoked Otoacoustic Emission (TEOAE) System
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| Screenshot of HearID + TE, showing the TEOAE stimulus (left) and TEOAE response (right). |
TEOAEs provide a quick and objective test of the cochlea's outer hair cells when a normal middle ear is present. A series of transient stimuli (wideband clicks or chirps) are sent into the ear canal. The resulting TEOAE, coming from the inner ear through the middle ear, is measured in the ear canal between stimulus presentations. In less than a minute, a wideband assessment is achieved.
For use with newborns, infants, and adults.
TE Specifications
To run HearID + TE, you need a HearID software and hardware system, with the TE Measurement Module.
- Clinical and Research modes.
- Preset measurement protocols included.
- Synchronized spontaneous otoacoustic emissions mode.
- Stimulus Types: rectangular click, biphasic rectangular click, Gaussian click, differentiated Gaussian click, flat group-delay chirp, linear group-delay chirp, Dau group-delay chirp, Shera group-delay chirp.
- Customizable stimulus bandwidth, duration, level, white or pink spectrum, polarity.
- Adjustable inter-stimulus interval.
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Linear and non-linear stimulus presentation modes.
TEOAE spectrum showing a Pass result in 5 bands.
Green patch shows TEOAE amplitude, orange patch shows noise floor. - Adjustable number of passes and maximum rejected passes.
- Adjustable high and low pass TEOAE response filters.
- Adjustable response window.
- Adjustable graphical noise rejection level.
- Observe stimuli acoustically and electrically in real time.
- In-the-ear probe calibration, including option for spectrum compensation.
- Pass / Refer clearly indicated.
- Protocols can be customized and saved.
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