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Convention Paper

Contactless Hearing Aid for Infants Employing Signal Processing Algorithms

Authors: Dalka, Piotr; Kostek, Bozena; Kulesza, Maciej

AES Convention 121 · Paper 6983 · October 2006

Abstract

The proposed contactless hearing aid is designated to be attached to the infant’s crib for sound amplification in a free field. It consists of 4 electret microphone matrix, and a prototype DSP board. The compressed speech is transmitted and amplified via miniature loudspeakers. Algorithms that are worked out deal with parasitic feedback, which occurs due to the small distance between microphone and monitors and potentially high amplification required. The beamforming algorithm is based on an artificial neural network (ANN). The ANN is used as a nonlinear filter in the frequency domain. Principles of algorithms engineered and the prototype DSP unit design are presented in the paper. Also, results of experiments simulating the real-life conditions are analysed and discussed.

Details

Published in
AES Convention 121
AES Convention
121
Paper number
6983
Publication date
October 6, 2006
Session subject
Signal Processing
Affiliation
Gdansk Univ. of Technology & Inst.of Physiology and Pathology of Hearing (See document for exact affiliation information.)
Type
Convention Paper