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Re: speech intelligibility in noise

Ken Grant wrote:
> Sorry for this (maybe obvious) request. Does anyone know a good
> reference (with data) for speech intelligibility scores at different s/n
> (more than 2) by hearing-impaired listeners. Most studies of HI
> listeners present speech materials at one or two s/n levels (and usually
> at different presentation levels). Clearly, since HI listeners have a
> range of losses it is difficult to discuss average intelligibility
> scores for a fixed presentation and s/n condition. Nevertheless, I would
> like to find data showing s/n versus intelligibility (preferably
> nonsense syllables or isolated words) for a group or HI listeners.
> Thanks in advance.
> --
> Ken W. Grant
> Walter Reed Army Medical Center
> Army Audiology and Speech Center
> Washington, DC 20307-5001
> PHONE: (202) 782-8596
> FAX: (202) 782-9228
> EMAIL: grant@tidalwave.net


Fletcher's AI model has been implemented, which claims to be able to
calculate this. Check it out at:


It is based on data of impaired subjects I believe.


Jont B. Allen
AT&T Labs-Research, Shannon Laboratory, E161
180 Park Ave., Florham Park NJ, 07932-0971
973/360-8545voice, x7111fax, http://www.research.att.com/~jba