DP: Distortion-Product Otoacoustic Emission (DPOAE) System
Distortion-product otoacoustic emissions (DPOAEs) are generated in the cochlea in response to two tones of a given frequency and sound pressure level presented in the ear canal. DPOAEs are an objective indicator of normally functioning cochlea outer hair cells.
The HearID + DP instrumentation employs computer-generated stimuli, automated data monitoring, and advanced signal processing for noise and artifact rejection. Data are collected rapidly and conveniently. The HearID + DP program was developed by Mimosa Acoustics using the same digital signal processing (DSP) and DPOAE measurement algorithms and the same hardware principles as the original CUBeDIS™ DPOAE Measurement System, developed at AT&T Bell Labs as a research tool. Through the dedication of engineers and scientists at Ariel, Etymōtic, universities, and research centers, it has developed into a widely-used clinical measurement system.
For use with newborns, infants, and adults.
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| DPOAE Hardware |
DP Specifications
To run HearID + DP, you need a HearID software and hardware system, with the DP Measurement Module.
- Frequency Range 500-16,000 Hz.
- Level range 0-70 dB SPL.
- Artifact rejection.
- Stopping rules.
- DP Definition Points: f2-f1; 2f2-f1; 2f1-f2; 3f1-2f2; 3f2-2f1; 4f1-3f2; 4f2-3f1.
- Customizable measurement protocols.
- Normative data.
- Boystown reporting format option.
- Export to Hi*Track and OZ.
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