BS EN 60268-16:2011 - Sound system equipment. Objective rating of speech intelligibility by speech transmission index

BS EN 60268-16:2011

Sound system equipment. Objective rating of speech intelligibility by speech transmission index

Status : Current, Work in hand   Published : September 2011



IEC 60268-16:2011 specifies objective methods for rating the transmission quality of speech with respect to intelligibility. It provides a comprehensive manual for all types of users of the STI method in the fields of audio, communications and acoustics. Three methods are presented, which are closely related and are referred to as STI, STIPA, and STITEL. The first two methods are intended for rating speech transmission performance with or without sound systems. The STITEL method has more restricted uses. This fourth edition cancels and replaces the third edition, published in 2003, and constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition:

- development of more comprehensive, complete and unambiguous standardization of the STI methodology;

- the term STIr is discontinued. A new function for the prediction of auditory masking effects is introduced;

- the concept of 'speech level' and the setting of the level of the test signal have been introduced;

- additional information has been included on prediction and measurement procedures. The French version of this standard has not been voted upon.

Standard NumberBS EN 60268-16:2011
TitleSound system equipment. Objective rating of speech intelligibility by speech transmission index
StatusCurrent, Work in hand
Publication Date30 September 2011
Normative References(Required to achieve compliance to this standard)IEC 61260:1995, IEC 61260:1995/AMD 1:2001, EN ISO 18233:2006, EN 61260:1995/AMD 1:2001, ISO 18233:2006, EN 61260:1995
Informative References(Provided for Information)IEC 61672, ISO/TR 22411:2008, IEC 60318-1:2009, ISO 3382-1:2009, ANSI S12.2 1995, ITU-T P.50, ISO 9921:2003, ANSI S3.5-1969, ITU-T P.51, IEC 60268-3:2000, ISO 7029:2000, ISO/TR 4870:1991
ReplacesBS EN 60268-16:2003
International RelationshipsIEC 60268-16:2011,EN 60268-16:2011
DescriptorsAudio equipment, Acoustic measurement, Audibility, Ratings, Performance testing, Public-address systems, Signal-to-noise ratio, Audio systems, Communication equipment, Speech recognition, Speech transmission systems, Acoustic testing, Acoustic properties and phenomena, Telecommunication systems, Grades (quality)
Title in FrenchEquipements pour systèmes électroacoustiques. Evaluation objective de l'intelligibilité de la parole au moyen de l'indice de transmission de la parole
Title in GermanElektroakustische Geräte. Objektive Bewertung der Sprachverständlichkeit durch den Sprachübertragungsindex
ISBN978 0 580 76163 8
File Size1.805 MB

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