RASTI : A tool for evaluating auditoria
article
The RASTI-method for the objective measurement of speech intelligibility in auditoria is described and applied in a number of practical conditions. The Modulation Transfer Function (underlying each RASTI measurement) can be used to obtain diagnostic information concerning the individual octave band contribution, in terms of the signal-to-noise ratio and the early-decay time at the measuring position. Some examples are given of the use of RASTI in mapping an audience area by iso-intelligibility contours, and in evaluating the effectiveness of a PA system. A computer program to analyze the measurement results is discussed and given in the Appendix.
Topics
TNO Identifier
229956
ISSN
00072621
Source
Technical review - Bruel & Kjaer(3), pp. 13-30.
Pages
13-30
Files
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