An experiment has been conducted to determine whether the speech intelligibility in rooms is related in a simple way to the loudspeaker directivity Q. three loudspeakers of widely differing Q were used to subjectively test intelligibility in five auditoria. These results indicate that intelligibility and Q are not directly related. In addition, impulse response measurements were made so that several methods of predicting intelligibility could be compared with subjective scores. One method, which assumes a linear relationship between Q and intelligibility, was shown to be the least accurate predictor. Two other methods, one based on the psychophysics of the auditory system and the other based on the modulation transfer function, proved to be better predictors of intelligibility.
Author:
Jacob, Kenneth D.
Affiliation:
Bose Corporation, Framingham, MA
JAES Volume 33 Issue 12 pp. 950-955; December 1985
Publication Date:
December 1, 1985
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.