Evolution of miniature microphones in hearing instruments

2020 ◽  
Vol 148 (4) ◽  
pp. 2608-2608
Author(s):  
Janice L. LoPresti
Keyword(s):  
Hearing Instruments

The Effects of Receiver Placement on Probe Microphone, Performance, and Subjective Measures with Open Canal Hearing Instruments

2010 ◽  
Vol 21 (04) ◽  
pp. 249-266 ◽  
Author(s):  
Lynzee N. Alworth ◽  
Patrick N. Plyler ◽  
Monika Bertges Reber ◽  
Patti M. Johnstone
Keyword(s):  
Repeated Measures ◽  
Hearing Aid ◽  
Clinical Importance ◽  
Ease Of Use ◽  
Subjective Measures ◽  
Repeated Measures Design ◽  
Hearing Instruments ◽  
Data Collection And Analysis ◽  
Significant Difference ◽  
Occlusion Effect

Background: Open canal hearing instruments differ in method of sound delivery to the ear canal, distance between the microphone and the receiver, and physical size of the devices. Moreover, RITA (receiver in the aid) and RITE (receiver in the ear) hearing instruments may also differ in terms of retention and comfort as well as ease of use and care for certain individuals. What remains unclear, however, is if any or all of the abovementioned factors contribute to hearing aid outcome. Purpose: To determine the effect of receiver location on performance and/or preference of listeners using open canal hearing instruments. Research Design: An experimental study in which subjects were exposed to a repeated measures design. Study Sample: Twenty-five adult listeners with mild sloping to moderately severe sensorineural hearing loss (mean age 67 yr). Data Collection and Analysis: Participants completed two six-week trial periods for each device type. Probe microphone, objective, and subjective measures (quiet, noise) were conducted unaided and aided at the end of each trial period. Results: Occlusion effect results were not significantly different between the RITA and RITE instruments; however, frequency range was extended in the RITE instruments, resulting in significantly greater maximum gain for the RITE instruments than the RITA instruments at 4000 and 6000 Hz. Objective performance in quiet or in noise was unaffected by receiver location. Subjective measures revealed significantly greater satisfaction ratings for the RITE than for the RITA instruments. Similarly, preference in quiet and overall preference were significantly greater for the RITE than for the RITA instruments. Conclusions: Although no occlusion differences were noted between instruments, the RITE did demonstrate a significant difference in reserve gain before feedback at 4000 and 6000 Hz. Objectively; no positive benefit was noted between unaided and aided conditions on speech recognition tests. These results suggest that such testing may not be sensitive enough to determine aided benefit with open canal instruments. However, the subjective measures (Abbreviated Profile of Hearing Aid Benefit [APHAB] and subjective ratings) did indicate aided benefit for both instruments when compared to unaided. This further suggests the clinical importance of subjective measures as a way to measure aided benefit of open-fit devices.

Towards multi-modal context recognition for hearing instruments

2010 ◽  
Author(s):  
Bernd Tessendorf ◽  
Andreas Bulling ◽  
Daniel Roggen ◽  
Thomas Stiefmeier ◽  
Gerhard Troster ◽  
...  
Keyword(s):  
Context Recognition ◽  
Hearing Instruments

scholarly journals Design of a multimodal hearing system

2013 ◽  
Vol 10 (1) ◽  
pp. 483-501 ◽  
Author(s):  
Bernd Tessendorf ◽  
Matjaz Debevc ◽  
Peter Derleth ◽  
Manuela Feilner ◽  
Franz Gravenhorst ◽  
...  
Keyword(s):  
Contextual Information ◽  
Body Movement ◽  
Audio Signal ◽  
The Novel ◽  
Missing Information ◽  
Sound Processing ◽  
Acoustic Environment ◽  
Novel Approach ◽  
Hearing Instruments ◽  
Hearing System

Hearing instruments (HIs) have become context-aware devices that analyze the acoustic environment in order to automatically adapt sound processing to the user?s current hearing wish. However, in the same acoustic environment an HI user can have different hearing wishes requiring different behaviors from the hearing instrument. In these cases, the audio signal alone contains too little contextual information to determine the user?s hearing wish. Additional modalities to sound can provide the missing information to improve the adaption. In this work, we review additional modalities to sound in HIs and present a prototype of a newly developed wireless multimodal hearing system. The platform takes into account additional sensor modalities such as the user?s body movement and location. We characterize the system regarding runtime, latency and reliability of the wireless connection, and point out possibilities arising from the novel approach.

Maico Hearing Instruments, Inc.: Phox

1992 ◽  
Vol 13 (02) ◽  
pp. 127-134
Author(s):  
Brad Wallace
Keyword(s):  
Hearing Instruments
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