Estimating auditory filter bandwidth using distortion product otoacoustic emissions

Andreas Harbo Rukjær, Sigurd van Hauen, Rodrigo Eduardo Ordoñez Pizarro, Dorte Hammershøi

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

The basic frequency selectivity in the listener’s hearing is often characterized by auditory filters. These filters are determined through listening tests, which estimate the masking threshold as a function of frequency of the tone and the bandwidth of the masking sound. The auditory filters have been shown to be wider for listeners with sensorineural impairment. In a recent study (Christensen et al., 2017) it was demonstrated on group basis that the distortion product stimulus ratio that provided the strongest 2 f1− f2 component at low frequencies had a strong correlation to the theoretical relation between frequency and auditory filter bandwidth, described by the equivalent rectangular bandwidth (ERB, Glasberg and Moore, 1990). The purpose of the present study is to test whether a similar correlation exists on an individual basis at normal audiometric frequencies. The optimal 2 f1 − f2 DPOAE ratio is determined for stimulus ratios between 1.1 and 1.6, at fixed primary levels (L1/L2 = 65/45 dB SPL). The auditory filters are determined using notched-noise method in a two alternative forced choice experiment with noise levels at 40 dB SPL/Hz. Optimal ratios and auditory filters are determined at 1, 2, and 4 kHz for 10 young normal-hearing subjects.
Original languageEnglish
Title of host publicationProceedings of the International Symposium on Auditory and Audiological Research 6 : Adaptive Processes in Hearing
EditorsSébastian Santurette, Torsten Dau, Jakob Christensen-Dalsgaard, Lisbeth Tranebjærg, Ture Andersen, Torben Poulsen
PublisherThe Danavox Jubilee Foundation
Publication date2017
Pages263-270
ISBN (Electronic)978-87-990013-6-1
Publication statusPublished - 2017
EventInternational Symposium on Auditory and Audiological Research: Adaptive Processes in Hearing - Hotel Nyborg Strand, Nyborg, Denmark
Duration: 23 Aug 201725 Aug 2017
Conference number: 6
http://isaar.eu/

Conference

ConferenceInternational Symposium on Auditory and Audiological Research
Number6
LocationHotel Nyborg Strand
Country/TerritoryDenmark
CityNyborg
Period23/08/201725/08/2017
Internet address
SeriesInternational Symposium on Auditory and Audiological Research (ISAAR). Proceedings.
Number2017
Volume6
ISSN2596-5522

Keywords

  • Auditory filters
  • otoacoustic emission
  • Distortion product otoacoustic emission
  • optimal ration
  • auditory frequency resolution

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