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Machine translation
1. (WO1980000519) METHOD AND APPARATUS FOR MEASURING ATTACK AND RELEASE TIMES OF HEARING AIDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000519    International Application No.:    PCT/US1979/000654
Publication Date: 20.03.1980 International Filing Date: 22.08.1979
IPC:
H04R 29/00 (2006.01)
Applicants:
Inventors:
Priority Data:
936735 25.08.1978 US
Title (EN) METHOD AND APPARATUS FOR MEASURING ATTACK AND RELEASE TIMES OF HEARING AIDS
(FR) PROCEDE ET APPAREILLAGE POUR MESURER LES TEMPS D"ATTAQUE ET D"ARRET D"UN APPAREIL AUDITIF
Abstract: front page image
(EN)At the option of an operator, the attack or release time of a hearing aid (13) is automatically measured, and the measurement displayed in milliseconds on a digital readout (15). A test tone signal (Fig. 2) of constant frequency is successively cycled between relatively low and high power levels. During the first cycle of the test signal a sample is taken and stored which is representative of the steady state response of the hearing aid under test; and during the second cycle a measurement is automatically made of the time required for the output of the hearing aid to settle to within a predetermined recovery range about the stored sample signal.
(FR)A la demande d"un operateur, les temps d"attaque ou d"arret d"un appareil auditif sont mesures automatiquement et la mesure en millisecondes est affichee sur un signalisateur digital (15). Un signal de tonalite d"essai (Fig. 2) a frequence constante est successivement emis cycliquement entre des niveaux relativement hauts et bas. Pendant le premier cycle du signal d"essai, un echantillon est extrait et stocke, lequel est representatif de la reponse en regime permanent de l"appareil auditif sous controle; pendant le second cycle une mesure du temps necessaire pour que le debit de l"appareil auditif se stabilise dans une zone predeterminee de recuperation autour de l"echantillon de signal stocke est effectuee automatiquement.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)