Directional hearing aids: then and now.
نویسنده
چکیده
Directional microphone hearing aids can lead to improved speech recognition when speech and noise are coming from different directions. This technology provides limited benefits, however, and in specific instances use of a directional hearing aid mode can be detrimental. This article discusses the benefits and limitations of directional amplification, summarizes some current work in directional amplification, and recommends clinical application relative to the use of directional amplification.
منابع مشابه
Relationship between laboratory measures of directional advantage and everyday success with directional microphone hearing aids.
The improvement in speech recognition in noise obtained with directional microphones compared to omnidirectional microphones is referred to as the directional advantage. Laboratory studies have revealed substantial differences in the magnitude of the directional advantage across hearing-impaired listeners. This investigation examined whether persons who were successful users of directional micr...
متن کاملComparison of performance across three directional hearing aids.
This study compared the speech recognition performance of 12 hearing-impaired listeners fit with three commercially available behind-the-ear hearing aids in both directional and omnidirectional modes. One digitally programmable analog and two "true digital" hearing aids were selected as test instruments. Testing was completed in both "living room" and anechoic room environments. Speech recognit...
متن کاملSpeech recognition in noise using bilateral open-fit hearing aids: the limited benefit of directional microphones and noise reduction.
OBJECTIVE To investigate speech recognition performance in noise with bilateral open-fit hearing aids and as reference also with closed earmolds, in omnidirectional mode, directional mode, and directional mode in conjunction with noise reduction. DESIGN A within-subject design with repeated measures across conditions was used. Speech recognition thresholds in noise were obtained for the diffe...
متن کاملUse of a digital hearing aid with directional microphones in school-aged children.
The efficacy of a digital hearing aid with a directional microphone was examined in a school-aged population. Twenty children (9 with a mild-to-moderately-severe hearing loss and 11 with a moderate-to-severe hearing loss) between 7 1/2 and 13 2/3 years of age wore the study hearing aids binaurally for 30 days prior to the evaluation. The testing protocol included speech recognition tests using ...
متن کامل“Acoustic Scene Analysis” and Digital Hearing Aids
Digital hearing aids have gained rapidly in popularity in recent years, now comprising over 93% of the US market (figure 1). Interestingly, despite this increase, customer satisfaction, benefit, use, and residual disability have not changed appreciably during the past decade (figure 2). One hearing aid feature, however, that has produced considerable increases in patient satisfaction is the dir...
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عنوان ژورنال:
- Journal of rehabilitation research and development
دوره 42 4 Suppl 2 شماره
صفحات -
تاریخ انتشار 2005