Increasing robustness in the calculation of the speech transmission index from impulse responses

Cabrera, D; Lee, D; Leembruggen, G; Jimenez, D

Increasing robustness in the calculation of the speech transmission index from impulse responses

Cabrera, D Lee, D Leembruggen, G Jimenez, D

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Publisher:: Multi-Science Publishing
Publication Type:: Journal Article
Citation:: Building Acoustics, 2014, 21 (3), pp. 181 - 198
Issue Date:: 2014

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Field	Value	Language
dc.contributor.author	Cabrera, D	en_US
dc.contributor.author	Lee, D	en_US
dc.contributor.author	Leembruggen, G	en_US
dc.contributor.author	Jimenez, D	en_US
dc.date.issued	2014	en_US
dc.identifier.citation	Building Acoustics, 2014, 21 (3), pp. 181 - 198	en_US
dc.identifier.issn	1351-010X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118693
dc.description.abstract	There are many factors that can affect the measured values of the speech transmission index (STI), and this paper examines how and why identical inputs into STI calculation software are yielding varying results. The study involved a survey of a number of software implementations of the Indirect Method for computing the STI from an impulse response, one of which was written by the authors. Results are presented for artificial and measured impulse responses, and for signal and noise spectra that were designed to test particular aspects of the STI calculation. While most deviations between implementations were within 0.01 STI, some were not, revealing a need for greater robustness in the design of software and greater clarity in the STI standard (IEC60268-16), including more support for validation. This paper provides some data for such validation.	en_US
dc.publisher	Multi-Science Publishing	en_US
dc.relation.ispartof	Building Acoustics	en_US
dc.relation.isbasedon	10.1260/1351-010X.21.3.181	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Increasing robustness in the calculation of the speech transmission index from impulse responses	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	21	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	1202 Building	en_US
utslib.for	0203 Classical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false	en_US
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	21	en_US

Abstract:

There are many factors that can affect the measured values of the speech transmission index (STI), and this paper examines how and why identical inputs into STI calculation software are yielding varying results. The study involved a survey of a number of software implementations of the Indirect Method for computing the STI from an impulse response, one of which was written by the authors. Results are presented for artificial and measured impulse responses, and for signal and noise spectra that were designed to test particular aspects of the STI calculation. While most deviations between implementations were within 0.01 STI, some were not, revealing a need for greater robustness in the design of software and greater clarity in the STI standard (IEC60268-16), including more support for validation. This paper provides some data for such validation.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/118693