A TEST OF THE 20-BAND AND OCTAVE-BAND METHODS OF COMPUTING THE ARTICULATION INDEX
BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA
Pagination or Media Count:
The accuracy with which the Articulation Index is calculated by both the octave band and 20-band methods predict the intelligibility of speech presented to listeners in the presence of a variety of types of broad band noises was calculated. The results indicate that, for the noises tested, the octave band method for the calculation of articulation index can be used in place of the more detailed 20-band method without any APPRECIABLE LOSS IN THE ACCURACY WITH WHICH SPEECH INTELLIGIBILITY TEST SCORES ARE PREDICTED.
- Voice Communications