In-situ compression for vented fittings

Forfattere

  • Morten A. Nordahn Widex A/S, Nymoellevej 6, DK-3540 Lynge, Denmark

Resumé

The present work contains a simulated analysis of the properties behind the mixing of processed and direct sound at the eardrum. Specifically, the achieved in-situ, input-level dependent eardrum gain of compressive hearing aids with vented ttings is investigated and compared to the prescribed gain dictated by the fitting rationale. The results show potentially huge discrepancies between the achieved gain and the intended gain at the eardrum, due to the mixing of the processed and the direct sound. The results generalize to open and leaky fittings.

Referencer

Egolf, D. P. (1980). “Techniques for modeling the hearing aid receiver and associated tubing,” in Acoustical factors affecting hearing aid performance, edited by G. A. Studebaker and I. Hochberg (University Park Press, Baltimore), pp. 298-319.

Hoover, B. M., Stelmachowicz, P. G., and Lewis, D. E. (2000). “Effect of earmold t on predicted real ear SPL using a real ear to coupler difference procedure,” Ear Hear 21, 310-317.

Moodie, K. S., Seewald, R. C., and Sinclair, S. T. (1994). “Procedure for predicting the real-ear hearing aid performance in young children,” Am J Audiol 3, 23-31.

Dillon, H. (2001). Hearing Aids (Thieme, Stuttgard).

Yderligere filer

Publiceret

2009-12-15

Citation/Eksport

Nordahn, M. A. (2009). In-situ compression for vented fittings. Proceedings of the International Symposium on Auditory and Audiological Research, 2, 463–472. Hentet fra https://proceedings.isaar.eu/index.php/isaarproc/article/view/2009-47

Nummer

Årg. 2 (2009): Binaural Processing and Spatial Hearing

Sektion

2009/4. Recent concepts in binaural cochlear-implant and hearing-aid processing

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