The speech transmission index, the useful-to-detrimental ratio, and the percent articulation loss of consonants are three quite different types of measures of speech intelligibility in rooms. They each combine a measure of the speech-to-noise ratio and a measure of the room acoustics to better relate to speech intelligibility in rooms. Values of all three types of measures were calculated from 91 room impulse responses obtained from a wide range of acoustical conditions, and for different speech-to-noise ratios. Several forms of these measures are shown to be reasonably well related to each other. The calculated regression equations relating the various measures of speech intelligibility permit practical conversions among the measures.
Bradley, John S.
Affiliation: IRC, National Research Council, Ottawa, ON, Canada
JAES Volume 46 Issue 5 pp. 396-405; May 1998
Publication Date: May 1, 1998
No AES members have commented on this paper yet.
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.