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Although the phenomenon of otoacoustic emission has been known for nearly 30 years, it has not been fully explained yet. One kind of otoacoustic emission is distortion product of the otoacoustic emission (DPOAE). New aspects of this phenomenon are constantly discovered and attempts are made to interpret correctly the obtained results. This paper discusses a new method of measuring DPOAE signals based on double phase-sensitive detection, which makes possible a real-time measurement of the DPOAE signal amplitude and phase. The method was applied for measurements of DPOAE signals in guinea pigs. Sample records are presented and the obtained results are discussed.
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Tom
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499--508
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Bibliogr. 22 poz., tab., wykr.
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autor
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- Wrocław University of Technology Institute of Telecommunications, Teleinformatics and Acoustics Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland, wojciech.michalski@pwr.wroc.pl
Bibliografia
- 1. Dhar S., Long G. Talmadge C.L., Tubis A. (2005), The effect of stimulus-frequency ratio on distortion product otoacoustic emission components, J Acoust. Soc. Am., 117, 3766-3776.
- 2. Harada T., Ogawa K., Inoue Y., Kanzaki J. (2001), Effects of changes in stimulus level on phases of distortion product otoacoustic emissions, Hear. Res., 152, 152-158.
- 3. Harris F.P. Lonsbury-Martin B.L., Stagner B.B., Coats A.C., Martin G.K. (1989), Acoustic distortion products in human: Systematic changes in amplitude as a function of f2/f1 ratio, J Acoust. Soc. Am., 85, 220-229.
- 4. James A.L., Harrison R.V., Pienkowski M., Dajani H.R., Mount R.J. (2005), Dynamics of real time DPOAE contralateral suppression in chinchillas and humans, International Journal of Audiology, 44, 2, 118-129.
- 5. Johnson T.A., Neely S.T., Kopun J.G., Dierking D.M., Tan H., Converse C., Kennedy E., Gorga M.P. (2007), Distortion product otoacoustic emission: Cochlearsource contributions and clinical test performance, J. Acoust. Soc. Am., 122, 3539-3553.
- 6. Kemp D.T. (1978), Stimulated acoustic emissions from within the human auditory system, J. Acoust. Soc. Am., 64, 5, 1386-1391.
- 7. Kimberley B.P. (1999), Applications of distortion-product emissions to an otological practice, Laryngoscope, 109, 1908-1918.
- 8. Michalski W., Pośpiech L., Dziewiszek W., Bochnia M. (2000), A device for measuring cochlear microphonics [in Polish], patent PL 180060 B1.
- 9. Michalski W., Dziewiszek W., Bochnia M., Kutynia A. (2005), A device for chase sensitivity measurement of cochlear microphonics (patent application in Polish), Patent Office Bulletin 33, no. 14.
- 10. Michalski W., Dziewiszek W., Bochnia M. (2006a), A method and device for screening hearing examinations (patent application in Polish), P 379972.
- 11. Michalski W., Dziewiszek W., Bochnia M. (2006b), A method of measuring cochlear potentials evoked by two-tone excitation, Archives of Acoustics, 31, 4 (Supplement), 17-22.
- 12. Michalski W., Dziewiszek W., Bochnia M. (2007), Use of double phase-sensitive detection to measure DPOAE signals, Archives of Acoustics, 32, 4 (Supplement), 129-134.
- 13. Plinkert P.K., Wagner W. (1998), Spontaneous and evoked otoacoustic emissions, Otolaryn Pol, LII (2), 121-135.
- 14. Relkin E.M., Sterns A., Azeredo W., Prieve B.A., Woods C.I. (2005), Physiological mechanisms of onset adaptation and contralateral suppression of DPOAEs in the rat, JARO, 6, 119-135.
- 15. Ren T. (2004), Reverse propagation of sound in the gerbil cochlea, Nature Neuroscience, 7, 333-334.
- 16. Schneider S., Schoonhoven R., Prijs V.F. (2001), Amplitude of distortion product otoacoustic emissions in the guinea pig in f1 - and f2 - sweep paradigms, Hear. Res., 155, 21-31.
- 17. Scholz G., Hirschfelder A., Marquardt T., Hensel J., Mrowinski D. (1999), Low frequency modulation of the 2f1−f2 distortion product otoacoustic emissions in the human ear, Hear. Res., 130, 189-196.
- 18. Smith J.L., Sterns A.R., Prieve B.A., Woods C.I. (2008), Effect of anaesthesia on DPOA level and phase in rats, Hear. Res., 235, 47-59.
- 19. Wagner W., Plinkert P.K., Vonthein R., Plontke S.K. (2008), Fine structure od distortion product otoacoustic emission: its dependence on age and hearing threshold and clinical implications, Eur Arch. Otorhinolaryngol, 265, 1165-1172.
- 20. Wilson H.K., Lutman M.E. (2006), Mechanisms of generation of the 2f2 −f1 distortion product otoacoustic emission in humans, J. Acoust. Soc. Am., 120, 2108-2115.
- 21. Withnell R.H. Shaffer L.A., Talmadge C.L. (2003), Generation of DPOAE in the guinea pig, Hear. Res., 178, 106-117.
- 22. Ziarani A.K., Konrad A. (2004), A novel method of estimation of DPOAE signals, IEEE Trans. Biomed. Eng., 51, 5, 864-868.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS8-0020-0030