التفاصيل البيبلوغرافية
| العنوان: |
[Temporal resolution with a hearing aid in hearing impaired persons]. |
| عنوان ترانسليتريتد: |
Zeitauflösung mit Hörgerät beim Schwerhörigen. |
| المؤلفون: |
Brügel FJ; Klinik und Poliklinik für Hals-, Nasen- und Ohrenkranke, Ludwig-Maximilians-Universität München., Schorn K |
| المصدر: |
Laryngo- rhino- otologie [Laryngorhinootologie] 1994 Mar; Vol. 73 (3), pp. 123-7. |
| نوع المنشور: |
Case Reports; Comparative Study; English Abstract; Journal Article |
| اللغة: |
German |
| بيانات الدورية: |
Publisher: Thieme Country of Publication: Germany NLM ID: 8912371 Publication Model: Print Cited Medium: Print ISSN: 0935-8943 (Print) Linking ISSN: 09358943 NLM ISO Abbreviation: Laryngorhinootologie Subsets: MEDLINE |
| أسماء مطبوعة: |
Original Publication: Stuttgart ; New York : Thieme, [c1989- |
| مواضيع طبية MeSH: |
Correction of Hearing Impairment* , Hearing Aids* , Perceptual Masking* , Pitch Perception* , Time Perception*, Audiometry, Pure-Tone ; Auditory Threshold ; Equipment Design ; Humans ; Psychoacoustics ; Reference Values |
| مستخلص: |
The purpose of hearing aid fitting is to improve the communication of the hearing impaired. Despite rigorous efforts to optimize hearing aid fitting there are still some patients who remain unsatisfied. The subject of research was to find improved methods of measuring, to increase the correlation between subjective information from the patient and objectively measurable data. With this goal in mind the variation of temporal resolution in hearing aid fitting was investigated in 88 patients comparing unaided and aided hearing basing on the method of determining the temporal resolution factor TRF at 500 Hz, 1500 Hz and 4000 Hz under free sound field conditions, as previously described by Schorn and Zwicker. The method is based on masking period patterns but measures only their maximum and minimum using continuous and 30-Hz square-wave amplitude modulated masking noise. The following three values of interest are measured: Threshold in quiet using interrupted continuous tones (500 ms on, 500 ms off) with the masker off; threshold masked by a continuous masker (octave-wide continuous noise) and threshold masked by a rectangulary modulated masker using 14 Hz, so that periods of 72 ms and pauses of 36 ms occur. TRF was defined as the ratio between the level differences derived from the three measured values. For normal hearing subjects this factor is about 1. The results show significant variation of the TRF comparing the data of the patients with and without hearing aids. The values for TRF unaided were 0.5 and 0.6 as well as under hearing aid.(ABSTRACT TRUNCATED AT 250 WORDS) |
| تواريخ الأحداث: |
Date Created: 19940301 Date Completed: 19940609 Latest Revision: 20121115 |
| رمز التحديث: |
20221213 |
| DOI: |
10.1055/s-2007-997093 |
| PMID: |
8172630 |
| قاعدة البيانات: |
MEDLINE |
