Hearing aid and a method for testing a hearing aid

Details Hearing aid and a method for testing a hearing aid Hearing aid and a method for testing a hearing aid

H - Electricity

04

R

H04R 25/00 (2006.01) H04R 29/00 (2006.01)

Patent

CA 2446465

A hearing aid with a test manager for detection of a defect in the signal path of the hearing aid is provided. The test manager controls a test stimulus generator and a probe for determination of a signal parameter, such as signal level, frequency spectrum, phase characteristic, auto-correlation, cross-correlation, etc. A set of signal switches controlled by the test manager is provided for connecting a selected test stimulus generator or a selected probe to a selected point in the signal path for testing of a selected part of the hearing aid. Signal switches are provided for coupling hearing aid components into and out of the signal path of the hearing aid.

Appareil auditif (10) comportant un gestionnaire (44) de test servant à détecter un défaut dans le trajet du signal de l'appareil auditif. Le gestionnaire de test commande un générateur (40) de stimuli de test ainsi qu'une sonde (42) afin de déterminer un paramètre de signal, p. ex. niveau du signal, spectre de fréquences, caractéristique de phase, autocorrélation, corrélation croisée, etc.. Un ensemble de commutateurs de signal (36>1<, 36>2<,..., 36>p<) commandés par le gestionnaire de test sert à connecter un générateur de stimuli de test sélectionné ou une sonde sélectionnée à un point sélectionné du trajet du signal afin de tester une partie sélectionnée de l'appareil auditif. Des commutateurs (18) de signal permettent de connecter les composants de l'appareil auditif au trajet du signal de l'appareil et de les déconnecter de celui-ci.

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