A Critical Review of Hearing-Aid Single-Microphone Noise-Reduction Studies in Adults and Children
Disability and Rehabilitation. Assistive Technology
Chong, F. Y., & Jenstad, L. M. (2018).
Disability and Rehabilitation. Assistive Technology, 13(6), 600-608.
This systematic review investigates the effectiveness of single-microphone noise reduction in wearable hearing aids for adults and children who are deaf or hard of hearing.
Not stated
2000-2016
Published, peer-reviewed studies (not further specified)
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Single-microphone noise reduction (SMNR) in wearable hearing aids for children was found to<ul> <li>have no effect on speech recognition in noise in three studies;</li> <li>be beneficial for learning novel words for older students (11 to 12 years old) but not for younger students (8 to 9 years old) in one study;</li> <li>have no effect on speech perception while completing visual tasks in one study; and </li> <li>have positive effects on preference, listening effort, sound clarity, and sound quality ratings in three studies.</li></ul>
Single-microphone noise reduction (SMNR) in wearable hearing aids for adults was found to<ul> <li>have no effect on speech intelligibility across hearing aid types, microphone modes, type of stimuli (speech or noise), presentation paradigms, or type or parameter of SMNR in eleven studies; </li> <li>have a small, but significant, positive effect on speech intelligibility using a SMNR algorithm that accounts for gain adjustment in four studies; </li> <li>improve visual-task performance during dual-task paradigms in two studies; and</li> <li>show positive effects in the acceptance of background noise, listening comfort, noise annoyance, ease of listening, and preferences in ten studies.</li></ul>
