In-situ compression for vented fittings

Authors

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

Abstract

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.

References

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).

Additional Files

Published

2009-12-15

How to Cite

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

Issue

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

Section

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

License

Authors who publish with this journal agree to the following terms:

a. Authors retain copyright* and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

*From the 2017 issue onward. The Danavox Jubilee Foundation owns the copyright of all articles published in the 1969-2015 issues. However, authors are still allowed to share the work with an acknowledgement of the work's authorship and initial publication in this journal.