A feedforward Adaptive canceller to reduce the occlusion effect in hearing aids

Hearing aids are essential devices for social integration of hearing impaired people in order to improve their auditory perception. Recent studies have reported significant dissatisfaction factors that tend to reduce their daily use. The occlusion effect is one important source of complaints. This phenomenon stems from the partial or complete closure of the ventilation opening of the ear-mould, usually performed to prevent feedback effects in high-gain devices. This work presents a new adaptive active-noise-control system to reduce the occlusion effect in small- or unvented hearing aids.

Source: Computers in Biology and Medicine - October 17, 2016 Category: Bioinformatics Authors: Renata Coelho Borges, M árcio Holsbach Costa Source Type: research