Household sound identification system for people with hearing disabilities

This article concerns the classification of household sounds for the development of an application to help people with hearing disabilities to resolve everyday situations which may present them with serious problems: telephone calls, the sound of the door bell, an alarm clock, the completion of a domestic appliance programme, etc. It presents the study carried out in order to obtain the best acoustical parameters by adopting training and evaluation techniques using GMM models with a varying number of Gaussian components. Parameters such as MFCCs, ZCR, Roll-Off Point and Spectral Centroid are tested using the classifier.