For the patient suffering from tinnitus, management of this persistent internal sound can be debilitating. Most treatment plans have converged on a format that includes sound therapy with a device presenting distracting noise or tonal sounds. Prior to the reviewed study, few randomized control trials with hearing aids featuring sound therapy had been completed. Read on to learn about the work of Henry and colleagues, who report on the benefits of hearing aids alone and hearing aids with a feature for tinnitus sound therapy.
Henry, J., Frederick, M., Sell, S., Griest, S. & Abrams, H. (2014). Validation of a novel combination hearing aid and tinnitus therapy device. Ear and Hearing, e-published ahead of print, September 2014.
This month we review a recent study from Souza and Sirow that assessed working memory with several clinically fit hearing aids. The results suggest that aspects of cognitive status may play a role in how patients respond to different hearing aids settings.
This month’s blog reviews a newly published article from Crogan and colleagues*. The authors discussed a project investigating the quality of music perception through hearing aids. Various factors related to the patient and hearing aid signal processing were found to be meaningful. We offer clinical advice relative to optimizing a music listening memory for patients that present themselves as music aficionados.
*Croghan, N., Arehart, K. & Kates, J. (2014). Music preferences with hearing aids: effects of signal properties, compression settings and listener characteristics. Ear & Hearing, in press.
The research involving music listening through hearing aids is limited. Existing reports generally focus on the electroacoustic limitations of modern hearing aids and perception of sound quality with a variety of hearing aid processing schemes. In the present study, we documented participants’ preferred aided listening levels (PLLs) for music presented in the sound field. Download the poster to learn more.
Hearing aid prescriptions are traditionally developed for the application of accessing speech in quiet listening conditions. This month we review an article from Crukley and Scollie that describes a version of the DSL v5.0 designed for listening in noisy situations.
Dawes and his colleagues examine the prevalence of hearing impairment among 164,700 middle-aged respondents in the U.K., assessing how audiologic and demographic factors relate to hearing impairment and the use of hearing aids among individuals in this age group.
They report that 10.7 % of participants had hearing impairment; tinnitus was reported by 16.9% of the subjects, which is consistent with previous reports (Davis 1995). The results show, not surprisingly, that the prevalence of hearing loss increases with increasing age, with an acceleration of prevalence beginning in the 55-59 year old age group.
In this month’s blog the three primary goals from a recent study by Keidser and colleagues are reviewed. The authors report on a series of factors that affect benefit from directional microphones in hearing aids. Specifically, they were interested in the effects and interaction of three potential sources of variability: differences in the individual SNR achieved by physical directional benefit, differences in the ability to make use of SNR improvements and variability related to measurement error.
Read more: http://buff.ly/1qskoJK
New patients frequently report that their new hearing aids sound tinny, metallic, loud, or unnatural. The clinical audiologist recognizes that these comments will decrease in frequency with time. This process is often described as acclimatization: a reaction to new hearing aids that occurs because the patient has adjusted to hearing sound filtered by their hearing loss. When amplification is introduced, the subsequent increase in audibility and loudness perception is unfamiliar and therefore unnatural…
Read more: http://bit.ly/1hseMo0
As more information is gained about prevalence and risk factors, what remains missing are clinical guidelines for management of hearing aid users with diagnosed high-frequency dead regions. Conflicting recommendations have been proposed for either limiting high frequency amplification or preserving high frequency amplification and working within prescribed targets. The data available today suggest that prevalence of contiguous multi-octave dead regions is very low and only a smaller subset of hearing aid users with contiguous dead regions experience any negative effects of high-frequency amplification.
For years it was the case that digital noise reduction was not a recommended signal processing strategy for pediatric hearing aid fittings. The advancement of these algorithms and new research findings have shifted this perception.
Read more: http://buff.ly/MKcx8I