Academic Journal
Difference between the Default Telecoil (T-Coil) and Programmed Microphone Frequency Response in Behind-the-Ear (BTE) Hearing Aids
| العنوان: | Difference between the Default Telecoil (T-Coil) and Programmed Microphone Frequency Response in Behind-the-Ear (BTE) Hearing Aids |
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| المؤلفون: | Putterman, Daniel B., Valente, Michael |
| المصدر: | Journal of the American Academy of Audiology ; volume 23, issue 05, page 366-378 ; ISSN 1050-0545 2157-3107 |
| بيانات النشر: | Georg Thieme Verlag KG |
| سنة النشر: | 2012 |
| الوصف: | Background: A telecoil (t-coil) is essential for hearing aid users when listening on the telephone because using the hearing aid microphone when communicating on the telephone can cause feedback due to telephone handset proximity to the hearing aid microphone. Clinicians may overlook the role of the t-coil due to a primary concern of matching the microphone frequency response to a valid prescriptive target. Little has been published to support the idea that the t-coil frequency response should match the microphone frequency response to provide “seamless” and perhaps optimal performance on the telephone. If the clinical goal were to match both frequency responses, it would be useful to know the relative differences, if any, that currently exist between these two transducers. Purpose: The primary purpose of this study was to determine if statistically significant differences were present between the mean output (in dB SPL) of the programmed microphone program and the hearing aid manufacturer's default t-coil program as a function of discrete test frequencies. In addition, pilot data are presented on the feasibility of measuring the microphone and t-coil frequency response with real-ear measures using a digital speech-weighted noise. Research Design: A repeated-measures design was utilized for a 2-cc coupler measurement condition. Independent variables were the transducer (microphone, t-coil) and 11 discrete test frequencies (15 discrete frequencies in the real-ear pilot condition). Study Sample: The study sample was comprised of behind-the-ear (BTE) hearing aids from one manufacturer. Fifty-two hearing aids were measured in a coupler condition, 39 of which were measured in the real-ear pilot condition. Hearing aids were previously programmed and verified using real-ear measures to the NAL-NL1 (National Acoustic Laboratories—Non-linear 1) prescriptive target by a licensed audiologist. Data Collection and Analysis: Hearing aid output was measured with a Fonix 7000 hearing aid analyzer (Frye Electronics, Inc.) in a ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.3766/jaaa.23.5.7 |
| DOI: | 10.3766/jaaa.23.5.7.pdf |
| الاتاحة: | http://dx.doi.org/10.3766/jaaa.23.5.7 http://www.thieme-connect.de/products/ejournals/pdf/10.3766/jaaa.23.5.7.pdf |
| رقم الانضمام: | edsbas.99C95B74 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3766/jaaa.23.5.7 |
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