This package calculates ANSI S3.51997 Speech Intelligibility Index (SII), a standard method for computing the intelligibility of speech from acoustical measurements of speech, noise, and hearing thresholds. This package includes data frames corresponding to Tables 1  4 in the ANSI standard as well as a function utilizing these tables and userprovided hearing threshold and noise level measurements to compute the SII score. The methods implemented here extend the standard computations to allow calculation of SII when the measured frequencies do not match those required by the standard by applying interpolation to obtain values for the required frequencies  Development of this package was funded by the Center for Bioscience Education and Technology (CBET) of the Rochester Institute of Technology (RIT).
Package details 


Author  Gregory R. Warnes 
Maintainer  Gregory R. Warnes <greg@warnes.net> 
License  GPL2 
Version  1.0.3.1 
Package repository  View on CRAN 
Installation 
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