March 20, 2008
On this day in the clinic I saw a man who came in to have his hearing re-evaluated. He currently wore bilateral hearing aids that he relied on quite heavily. He was interested in purchasing new hearing aids. He had a mild sloping to severe sensorineural hearing loss bilaterally. He wanted an open-fit behind the ear hearing aid to fit his loss and it had to use a size 10 battery. He also wanted a volume control. After much searching, we finally found one hearing aid that met all of his specifications and would provide enough amplification for his hearing loss.
I found an article about the contribution of high frequencies to speech recognition in quiet and noise with varying degrees of high frequency sensorineural hearing loss. In this article, they were wanting to determine the contributio of audible high frequency information to the speech understanding performance. They studied 36 elderly hearing impaired patients and 24 normal hearing patients. They tested these listeners under different band pass conditions. They eamined the monosyllabic word-recognition performance using both whole-word scoring and phoneme scoring. The results of this study should that when the spectrally shaped speech was used in both conditions, the individuals with hearing loss performed equivalently in the differnt bandwidth condtions and demonstrated no change in the word recogntion performance between the midband and broadband conditions. The normal group did show improvement in speech understanding which was attricutable to higher frequencies for the broadband condition in both the unshaped and shaped conditions.
Reference:
Amos, N.E. and Humes, L.E. (2007). Contribution of high frequencies to speech recognition in quient and noise in listeners with varying degrees of high-frequency sensorineural hearing loss. Journal of Speech, Language, and Hearing Research 50(4). 819-834.
If you would like to read this article, please copy and paste the following link into your browser:
http://jslhr.asha.org/cgi/reprint/50/4/819?maxtoshow=
I found an article about the contribution of high frequencies to speech recognition in quiet and noise with varying degrees of high frequency sensorineural hearing loss. In this article, they were wanting to determine the contributio of audible high frequency information to the speech understanding performance. They studied 36 elderly hearing impaired patients and 24 normal hearing patients. They tested these listeners under different band pass conditions. They eamined the monosyllabic word-recognition performance using both whole-word scoring and phoneme scoring. The results of this study should that when the spectrally shaped speech was used in both conditions, the individuals with hearing loss performed equivalently in the differnt bandwidth condtions and demonstrated no change in the word recogntion performance between the midband and broadband conditions. The normal group did show improvement in speech understanding which was attricutable to higher frequencies for the broadband condition in both the unshaped and shaped conditions.
Reference:
Amos, N.E. and Humes, L.E. (2007). Contribution of high frequencies to speech recognition in quient and noise in listeners with varying degrees of high-frequency sensorineural hearing loss. Journal of Speech, Language, and Hearing Research 50(4). 819-834.
If you would like to read this article, please copy and paste the following link into your browser:
http://jslhr.asha.org/cgi/reprint/50/4/819?maxtoshow=
posted by Diana @ 4:48 AM
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