A natural sound loudness estimation method as a perspective tool for hearing aid fitting in patients with dead cochlear regions

• Autorzy: Hojan-Jezierska D. , Skrodzka E. , Hojan E.
• Języki publikacji: EN

Abstrakty

EN

Hearing aids fitted with the use of classical methods (POGO, NAL, Berger ect.) often do not bring the expected benefit to hearing impaired people with “dead regions”, (DRs). For such patients we propose an alternative method of hearing aids fitting, based on perception of natural sounds – The Natural Sounds Loudness Estimation (NSLE) method. Our aim was to check whether patients with such a complicated hearing loss were able to follow loudness changes in the sound material. Four persons (seven ears) with diagnosed DRs were examined. Only one of them was not able to perform the loudness estimation test with satisfactory precision (calculated as a correlation coefficient between sound pressure changes on an original sound track and subjectively perceived changes in loudness). Next, the parameters necessary to proper hearing aid fitting were calculated using the NSLE. Estimated insertion gains (IGs) were generally lower than those predicted by three classical methods used for comparison. Our conclusion is that the NSLE method may be a good option for hearing aids fitting in the case of people with DRs.

Słowa kluczowe

EN

hearing aid fitting; dead regions; NSLE

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2007
• Tom: Vol. 32, No. 3
• Strony: 511--516
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Hojan-Jezierska D.

• Poznań University of Medical Sciences, Department of Biophysics A. Fredry 10, 61-701 Poznań, Poland

autor

Skrodzka E.

• Adam Mickiewicz University, Institute of Acoustics Umultowska 85, 61-614 Poznań, Poland

autor

Hojan E.

• Adam Mickiewicz University, Institute of Acoustics Umultowska 85, 61-614 Poznań, Poland

Bibliografia

• [1] MOORE B. C. J., Dead regions in the cochlea: Conceptual foundations, diagnosis and clinical applications, Ear and Hearing, 25, 2, 98–116 (2004).
• [2] MOORE B. C. J., Dead regions in the cochlea: Diagnosis, perceptual consequences, and implications for the fitting of hearing aids, Trends in Amplification, 5, 1–34 (2001).
• [3] GEERS W., HOJAN E., HOJAN-JEZIERSKA D., Fitting of Hearing Aids with Loudness Scaling of Music and Environmental Sounds, Applied Acoustics, 51, 2, 199–209 (1997).
• [4] HOJAN-JEZIERSKA D., SKRODZKA E., HOJAN E., The Natural Sounds Loudness Estimation Method Applied to Patients with “Dead Regions” – Preliminary Study, Polish J. Environmental Stud., 15, 4a, 53–56 (2006).
• [5] BAER T., MOORE B., KLUK K., Effects of lowpass filtering on the intelligibility of speech in noise for people with and without dead regions at high frequencies, J. Acoust. Soc. Am., 112, 1133-1144 (2002).
• [6] PRUSZEWICZ A., DEMENKO G., RICHTER L., WIKA T., Nowe listy artykulacyjne do badań audiometrycznych, Otolar. Pol., 48, 1, 50 (1994).
• [7] PRUSZEWICZ A. [Ed.], Zarys audiologii klinicznej, Pozna´n University of Medical Sciences, Poznań 2000.