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Speech Transmission Index (STI) from real speech waveforms
License: GNU General Public License v3.0
This project forked from jmpolom/sti-wav
Speech Transmission Index (STI) from real speech waveforms
License: GNU General Public License v3.0
sti.py : Speech Transmission Index (STI) from speech waveforms Overview -------- sti.py provides a library of functions used to calculate the speech transmission index (STI) from real speech waveforms. The speech trans- mission index provides an index measure of speech intelligibility, useful for evaluating transmission channel or codec suitability to carrying speech audio. The method used by sti.py was described first by Payton and Braida in 1999, and is an adaptation of the original STI method developed by Houtgast and Steeneken in 1985. Refer to those publications for further technical information on the index itself or the calculation approach. SOFTWARE DEPENDENCIES --------------------- matplotlib Numpy Scipy, release version 0.8 or greater INSTALLATION ------------ No installation is required OR AVAILABLE at this time. The only method of running the program currently is by placing the 'sti.py' file into a python project's source directory or including it in your module search path. Usage ----- sti.py provides library functions for calculating the speech transmission index. At this time no command line interface or GUI utility is available for accessing the functions. See the 'test.py' script contained in the source code directory for a brief example of calculating the STI from original and distorted raw audio samples. Authors ------- Jonathan Polom <[email protected]> Date ---- 22 April 2011 Version ------- 0.5 LICENSE ------- See 'COPYING' for the details of the GNU General Public License Copyright (C) 2011 Jonathan Polom <[email protected]>
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