Evaluating sound quality in hearing aids with reference test audiograms

Authors

  • Carsten Daugaard DELTA Technical-Audiological laboratory, Edisonvej 24, 5000 Odense C, Denmark
  • Søren L. Jørgensen DELTA Technical-Audiological laboratory, Edisonvej 24, 5000 Odense C, Denmark
  • Chris V. Jørgensen DELTA Technical-Audiological laboratory, Edisonvej 24, 5000 Odense C, Denmark
  • Søren V. Legarth DELTA SenseLab, Venlighedsvej 4, 2970 Hørsholm, Denmark
  • Nick V. Zacharov DELTA SenseLab, Venlighedsvej 4, 2970 Hørsholm, Denmark

Abstract

In the draft of the IEC 60118-15 [2008] standard a set of reference test audiograms are described. These audiograms are defined in order to give a common set of fittings for hearing aids, exposed to broadband measurements. The audiograms also provide a fine basis for the purpose of evaluating the perceived sound quality from various tting strategies in hearing aids. Evaluating sound quality involves creating a number of sound stimuli to evaluate the performance of the fitted hearing aids. By de ning and recording sound stimuli from sound scenarios that are expected to be challenging to hearing aids, as many sound attributes as possible are elicited for data analysis. For the evaluation of sound quality, descriptive analysis, a method known from the food industry, is applied. For sound evaluation a panel of normal hearing trained assessors is used. Results from the test indicate that differences between the hearing aids tted with the standard audiograms are clearly audible for a number of sound attributes.

References

Holube, I., and EHIMA-ISMADHA working group (2008). ”Short description of the International Speech Test Signal (ISTS)”. EHIMA - European Hearing Instrument Manufacturers Association.

Holube, I., and EHIMA-ISMADHA Working Group (2007). “Short description of the international speech test signal (ISTS),” EHIMA - European Hearing Instrument Manufacturers Association.

IEC 60118-15 (2008). “IEC TC43/WG13: Committee draft 1: IEC60118-15 Signal Processing in hearing aids”.

Additional Files

Published

2009-12-15

How to Cite

Daugaard, C., Jørgensen, S. L., Jørgensen, C. V., Legarth, S. V., & Zacharov, N. V. (2009). Evaluating sound quality in hearing aids with reference test audiograms. Proceedings of the International Symposium on Auditory and Audiological Research, 2, 453–462. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2009-46

Issue

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

Section

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

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