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Re: A search for a good citation on the relative effects of SNR & overall level for perceiving speech in noise
Plomp's work leading to his SRT model would also be relevant.
Plomp, R. (1978). "Auditory handicap of hearing impairment and the
limited benefit of hearing aids." Journal of the Acoustical Society of
America 63(2): 533-549.
Plomp, R. (1986). "A signal-to-noise ratio model for the
speech-reception threshold of the hearing impaired." Journal of Speech
and Hearing Research 29(2): 146-154.
Ben
-----Original Message-----
From: AUDITORY - Research in Auditory Perception
[mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of James D. Miller
Sent: Friday, August 08, 2008 1:09 PM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Re: A search for a good citation on the relative effects of SNR
& overall level for perceiving speech in noise
Hi Stuart,
One of the simplest demonstrations is in the classic Hawkins & Stevens
paper
on the critical ratio (JASA 22, 6-13 (1950)). They had listeners (
maybe just Joe and Smitty) adjust a reading of Adam Smith's Wealth of
Nations" (uniformly uninteresting) to the "thresholds of audibility and
of intelligibility." The SNR was independent of level over a wide
range. The difference between the the
two thresholds also remained nearly constant as I recall. There is a
nice simple graph in the paper.
Jim
--
James D. Miller, Ph.D.
Principal Scientist
Communication Disorders Technology, Inc.
Indiana University Research Park
501 N. Morton Street Suite 215
Bloomington, IN 47404
Business Phone: (812)336-1766
Cingular Cell Phone: (812)360-0612
Quoting Stuart Rosen <stuart@xxxxxxxxxxxxxxxxxxx>:
> I would be grateful for some references to work showing what we all
> know to be true -- that the primary determinant of performance for
> speech in noise for audiometrically normal listeners is the SNR,
> depending little or not at all on overall level (at least over a
> fairly wide range of moderate levels).
>
> For those interested, this is a nice study on the extent to which
> speech perception is invariant across level for a wide range of
> levels:
>
> USE OF COMFORTABLE LISTENING LEVELS IN SPEECH EXPERIMENTS
> Author(s): SIMON, C
> Source: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA Volume: 64
> Issue: 3 Pages: 744-750 Published: 1978
>
> Yours - Stuart
>
> P.S. I hope I am not opening a can of worms here!
>
> P.P.S. I have done some searching but cannot find anything relevant.
>
> --
> /*------------------------------------------------*/
> Stuart Rosen, PhD
> Professor of Speech and Hearing Science
> Speech, Hearing and Phonetic Sciences
> Division of Psychology & Language Sciences, UCL
> 2 Wakefield Street
> London WC1N 1PF
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>
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