Estimating auditory filter bandwidth using distortion product otoacoustic emissions

  • Andreas H. Rukjær Acoustics and Audio Technology, Aalborg University, Aalborg, Denmark
  • Sigurd van Hauen Acoustics and Audio Technology, Aalborg University, Aalborg, Denmark
  • Rodrigo Ordoñez Signal and Information Processing, Department of Electronic Systems, Aalborg University, Aalborg, Denmark
  • Dorte Hammershøi Signal and Information Processing, Department of Electronic Systems, Aalborg University, Aalborg, Denmark
Keywords: distortion product otoacoustic emissions, auditory filters, equivalent rectangular bandwidth, notched-noise thresholds

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.

References

Bentsen, T., Harte, J.M., and Dau, T. (2011). “Human cochlear tuning estimates from stimulus-frequency otoacoustic emissions,” J. Acoust. Soc. Am., 129, 3797-3807. doi: 10.1121/1.3575596

Bowman, D.M., Eggermont, J.J., Brown, D.K., and Kimberley, B.P. (1998). “Estimating cochlear filter response properties from distortion product otoacoustic emission (DPOAE) phase delay measurements in normal hearing human adults,” Hear. Res., 119,14-26. doi: 10.1016/S0378-5955(98)00041-0

Christensen, A.T., Ordo˜nez, R., and Hammershøi, D. (2015). “Stimulus ratio dependence of low-frequency distortion-product otoacoustic emissions in humans,” J. Acoust. Soc. Am., 137(2), 679-689. doi: 10.1121/1.4906157

Christensen, A.T., Ordo˜nez, R., and Hammershøi, D. (2017). “Distortion-product otoacoustic emission measured below 300 Hz in normal-hearing human subjects,” J. Assoc. Res. Otolaryngol., 18, 197-208. doi: 10.1007/s10162-016-0600-x

Glasberg, B.R., and Moore, B.C. (1990). “Derivation of auditory filter shapes from notched-noise data,” Hear. Res., 47, 103-138. doi: 10.1016/0378-5955(90)90170-T

Gruhlke, A., Birkholz, C., Neely, S.T., Kopun, J., Tan, H., Jesteadt, W., Schimd, K., and Gorga, M.P. (2012). “Distortion-product otoacoustic emission supressiontuning curves in hearing-impaired humans,” J. Acoust. Soc. Am., 135, 3292-3304. doi: 10.1121/1.4754525

Kemp, D.T. (1978). “Stimulated acoustic emissions from within the human auditory system,” J. Acoust. Soc. Am., 64, 1386-1391. doi: 10.1121/1.382104

Levitt, H. (1971). “Transformed up-down methods in psychoacoustics,” J. Acoust. Soc. Am., 49, 467-477. doi: 10.1121/1.1912375

Moore, B.C.J. (2012). An Introduction to the Psychology of Hearing (6th Ed.), Emeral Group Publishing Limited, Bingley, UK, ISBN: 978-1-78052-028-4.

Patterson, R.D. (1976). “Auditory filter shapes derived with noise stimuli,” J. Acoust. Soc. Am., 59, 640-654. doi: 10.1121/1.380914

Reuter, K., and Hammershøi, D. (2006). “Distortion product otoacoustic emission fine structure analysis of 50 normal-hearing humans,” J. Acoust. Soc. Am., 120, 270-279. doi: 10.1121/1.2205130
Published
2018-01-10
How to Cite
Rukjær, A., van Hauen, S., Ordoñez, R., & Hammershøi, D. (2018). Estimating auditory filter bandwidth using distortion product otoacoustic emissions. Proceedings of the International Symposium on Auditory and Audiological Research, 6, 263-270. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2017-32
Section
2017/4. Assessment of specific auditory functions and hearing ability