Non-Invasive Auditory Sensing with Affordable Headphones


This paper presents a non invasive auditory sensor for measuring auditory brainstem responses to help diagnose hearing problems away from specialist clinical settings using non-invasive electrodes and commercially available headphones.
The challenge of reliably measuring low level electronic signals in the presence of significant noise is addressed via a precision analog processing circuit which includes a novel impedance measurement approach to verify good electrode contact.
Results are presented showing that the new sensor was able to reliably sense auditory brainstem responses using non-invasive electrodes, even at lower stimuli levels.
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