Category Archives: Technology

CONSIDERATIONS FOR MUSIC PROCESSING THROUGH HEARING AIDS

While speech is arguably the most important sound that listeners encounter on a daily basis, the perception of other sounds should be taken into consideration, including music. In this study, Arehart and her colleagues examined the effect of a variety of signal processing conditions on music quality ratings for normal-hearing and hearing-impaired individuals.

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Arehart, K., Kates, J. & Anderson, M. (2011) Effects of Noise, Nonlinear Processing and Linear Filtering on Perceived Music Quality, International Journal of Audiology, 50(3), 177-190.

2016 American Academy of Audiology Foundation Board

This group is the 2016 Board for the American Academy of Audiology Foundation. Their work and many audiologist and sponsor donations supported $164,000 in research grants and educational programs during 2015. Fund raising is off to an even stronger start in 2016.

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American Auditory Society 2016

The 2016 American Auditory Society starts today. Our posters are available for download at the links below:

A new online questionnaire for assessing spatial hearing ability http://buff.ly/1SkE0w6

Statistical analysis of outcomes from the device oriented subjective outcome scale http://buff.ly/1SkE1Ac

Speech intelligibility differences between bilateral and monaural telephone listening conditions http://buff.ly/1SkE1QC

Validation of a hearing aid program designed for music listening http://buff.ly/1SkE1QH

Acceptable hearing aid throughput delay for listeners with hearing loss under noisy conditions http://buff.ly/1SkE1QO

Amplitude modulated forward masking in listeners with normal and impaired hearing http://buff.ly/1Trh3Ji

Can a commercially available auditory training program improve audiovisual speech performance? http://buff.ly/1Trh3ZC

Listening gets more effortful in your forties

Understanding speech in noise poses difficulty for hearing-impaired people of all ages. Even older adults with normal hearing sensitivity demonstrate greater difficulties than their younger, normally hearing counterparts. The work of DeGesst and colleagues documents increases in effortful listening that closely follow the listeners’ age.

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DeGeest, S., Keppler, H. & Corthals, P. (2015) The effect of age on listening effort. Journal of Speech, Language and Hearing Research 58(5), 1592-1600.

Another piece in the puzzle of hearing aid use and cognitive decline

Many individuals with hearing loss go without hearing aids, if causal linkage exists between increased risk of cognitive decline or dementia due to untreated hearing loss the implications are of meaningful concern for a large population of older adults. These factors have motivated a swell of interest in relationships among declining hearing ability, cognition, and memory for our aging population.

The reviewed study offers a longitudinal look at changes in screened cognitive ability as a function of self-reported hearing status.

Amieva, H., Ouvrard, C., Giulioli, C., Meillon, C., Rullier, L. & Dartigues, J.F. (2015) Self-Reported Hearing Loss, Hearing Aids and Cognitive Decline in Elderly Adults: A 25-Year Study. Journal of the American Geriatric Society 63 (10), 2099-2104.

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Modern Remote Microphones Greatly Improve Speech Understanding in Noise

In this study, we evaluated four wireless remote microphones that each use a different wireless audio transmission protocol. Results were equivalent across the four systems, indicating that these remote microphones offer similar benefits to those associated with FM remote microphones.

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Rodemerk, K. & Galster, J. (2015).  The benefit of remote microphones using four wireless protocols. Journal of the American Academy of Audiology, 1-8.

Listening is more effortful for new hearing aid wearers

Recent work out of Linkoping, Sweden suggests that new hearing aid wearers experience greater cognitive demands when listening. Over time they adapt to better resolve new auditory cues, decreasing the effort required for listening.

Ng, E., Classon, E., Larsby, B., Arlinger, S., Lunner, T., Rudner, M., Ronnberg, J. (2014). Dynamic relation between working memory capacity and speech recognition in noise during the first six months of hearing aid use. Trends in Hearing 18, 1-10.

Original Article

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Cognitive benefits of digital noise reduction

A number of studies have suggested that activating digital noise reduction in hearing aids may improve performance on tasks that are associated with cognitive capacity. This change in performance is attributed to a reduction in effort required for effective listening. This study from Desjardins and Doherty is one of the first to reveal these effects in a sample of participants with hearing loss.

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Desjardins, J. & Doherty, K. (2014). The effect of hearing aid noise reduction on listening effort in hearing-impaired adults. Ear and Hearing 35 (6), 600-610.

American Auditory Society 2015

At this year’s meeting of the American Auditory Society we are sharing five research posters. Links to the PDF of these posters are listed below.

Hearing Aid Use is Becoming More Accepted

On this month’s blog we review one of last year’s top 5 research articles. Rauterkus and Palmer (2014) asked people to rate characteristics of people wearing a variety of ear-level devices, some of which were hearing aids. Ratings taken today, as compared to those collected decades ago suggest that hearing aid use is carrying less social stigma than it once did.

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Rauterkus, E. & Palmer, C. (2014). The hearing aid effect in 2013. Journal of the American Academy of Audiology 25, 893-903.