A frequency importance function for a new monosyllabic word test
AuthorHenry, Belinda A.; McDermott, Hugh J.; McKay, Colette M.; James, Chris J.; Clark, Graeme M.
Source TitleAustralian Journal of Audiology
Document TypeJournal Article
CitationsHenry, B. A., McDermott, H. J., McKay, C. M., James, C. J., & Clark, G. M. (1998). A frequency importance function for a new monosyllabic word test. Australian Journal of Audiology, November, 20(2), 79-86.
Access StatusOpen Access
This is a publisher’s version of an article published in Australian Journal of Audiology 1989. This version is reproduced with permission from the publisher, Australian Academic Press. http://www.australianacademicpress.com.au/
A frequency importance function, characterising the relative contribution of different frequency bands to speech intelligibility, was determined for a CNC monosyllabic word test designed for Australian usage at the University of Melbourne. The importance function was derived from the phoneme scores of 12 normally-hearing listeners who were tested under various conditions of low-and high-pass filtering presented at signal-to-noise ratios of -8 to +6 dB, using noise which was shaped across frequency 10 match the speech spectrum. The importance function showed a dominant peak at approximately 2000 Hz, which is consistent with previously published word test importance functions. The word test, along with the importance function, will be useful in advanced hearing-aid fitting procedures and research aimed at improving speech perception.
Keywordsotolaryngology; speech perception; frequency bands
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