How to Cite
Asha Yathiraj and Roopa Nagarajan. (1). Effect of earmold venting on insertion gain. Journal of All India Institute of Speech and Hearing, 20(1), 57 -. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/774
Abstract
Earmold modifications are recommended to vary the electroacouslic output of hearing aids to suit the individual requirements of the hearing -impaired. Parallel and diagonal venting of earmolds are utilized to boost and I or reduce the gain of the hearing aid at specific frequencies. This study reports the effect of
earmold venting in hearing aid users. Insertion gain measurements were carried out using Madsens IGO 1000. The effect of earmold venting on the gain of the hearing aid at different frequencies were analysed. The study indicated that there was no significant difference between vented and non-vented ear molds.
References
Leavitt, R., "Earmolds : Acoustic and structural
considerations". In W.R. Hodgson and P.H. Skinner,
(Ed.), Hearing Aid Assessment and Use in
Audiologic Habilitaiion. Ed.2, Baltimore, Williams
Effect, Earmold Venting /61
and Wilkins, 73 - 114, 1981.
Lybarger, S., "Earmolds" In J. K atz, (Ed.), Handbook
of Clinical Audiology, Ed.3, Baltimore : Williams
and Wilkins, 885-910, 1985.
Lybarger, S. "Earmolds"In J. Katz, (Ed.), Handbook
of Clinical Audiology, Ed.2, Baltimore : Williams
and Wilkins, 508 - 542, 1978.
Siegel, S., "Nonparametric statistics - For the
beahvioural Sciences", 88 - 87, McGraw-Hill, 1956.
Studebaker, G., and Cox, R. (1977). "Side - branch
and parallel vent Effects in Real Ears and in Acoustical
and Electrical models" Journal of American
Audiological Society, 3, 108 - 116.
Schwartz, D.M., Lyregaard, P.E., and Lundh, P.
(1988) "Hearing aid Selection for severe to profound
Hearing Loss" The Hearing Journal. 41, 13 -17.
considerations". In W.R. Hodgson and P.H. Skinner,
(Ed.), Hearing Aid Assessment and Use in
Audiologic Habilitaiion. Ed.2, Baltimore, Williams
Effect, Earmold Venting /61
and Wilkins, 73 - 114, 1981.
Lybarger, S., "Earmolds" In J. K atz, (Ed.), Handbook
of Clinical Audiology, Ed.3, Baltimore : Williams
and Wilkins, 885-910, 1985.
Lybarger, S. "Earmolds"In J. Katz, (Ed.), Handbook
of Clinical Audiology, Ed.2, Baltimore : Williams
and Wilkins, 508 - 542, 1978.
Siegel, S., "Nonparametric statistics - For the
beahvioural Sciences", 88 - 87, McGraw-Hill, 1956.
Studebaker, G., and Cox, R. (1977). "Side - branch
and parallel vent Effects in Real Ears and in Acoustical
and Electrical models" Journal of American
Audiological Society, 3, 108 - 116.
Schwartz, D.M., Lyregaard, P.E., and Lundh, P.
(1988) "Hearing aid Selection for severe to profound
Hearing Loss" The Hearing Journal. 41, 13 -17.