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Re: AUDITORY Digest - 23 Jun 2003 to 25 Jun 2003 (#2003-120)
Jont: French and Steiberg have used the same data base
to derive the AI as did Fletcher and Galt. So the
answer to your questions is that SII would acount
perfectly for those data if the appropriate importance
function is used. But I want to remind you that the
SII differs from the AI in the following:
1. importance function for "average speech" is used
for general qauntification of a system; importance
functions for specific speech tests are available too.
2. System with reverberation and some other distortion
are accounted for using the STI methodology.
3. we did try to improve both French and Steinberg and
Fletcher and Galt methodologies by building on the
last 50 years of scientific work.
--- Jont Allen <firstname.lastname@example.org> wrote:
> How does this software (SII) account for the
> Fletcher Galt AI data?
> Hannes should know the answer to this question.
> Automatic digest processor wrote:
> > There is one message totalling 44 lines in this
> > Topics of the day:
> > 1. SII Software -- New Web Site (Speech
> Intelligibility Index)
> > Date: Wed, 25 Jun 2003 15:40:31 -0700
> > From: Chas Pavlovic <cpavlovic@YAHOO.COM>
> > Subject: SII Software -- New Web Site (Speech
> Intelligibility Index)
> > A new site www.sii.to has been created by
> members of
> > the Acoustical Society of America (ASA) Working
> > S3-79, which is in charge of reviewing American
> > National Standard ANSI S3.5-1997 ("Methods for
> > Calculation of the Speech Intelligibility Index").
> > site provides software for calculating the Speech
> > Intelligibility Index (SII), as well as notes
> > to potential future changes of the standard and
> > listing of known errors to be corrected in the
> > version of the standard. You are encouraged to
> > contact us with any information that may help make
> > Standard better and easier to use. Also, if you
> > other software that can facilitate SII
> > we urge you to send it to us for a review and
> > on this site.
> > This standard defines a method for
> computing a
> > physical measure that is highly correlated with
> > intelligibility of speech as evaluated by speech
> > perception tests given a group of talkers and
> > listeners. This measure is called the Speech
> > Intelligibility Index, or SII. The SII is
> > from acoustical measurements of speech and noise.
> > Chas Pavlovic, chairman
> > John Hou
> > Tammo Houtgast
> > Harry Levitt
> > Hannes Muesch
> > Gerald Studebaker
> > Pat Zurek
> > __________________________________
> > Do you Yahoo!?
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> > ------------------------------
> > End of AUDITORY Digest - 23 Jun 2003 to 25 Jun
> 2003 (#2003-120)
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