Accession Number:

AD0271606

Title:

A TEST OF THE 20-BAND AND OCTAVE-BAND METHODS OF COMPUTING THE ARTICULATION INDEX

Descriptive Note:

Corporate Author:

BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA

Report Date:

1961-10-01

Pagination or Media Count:

26.0

Abstract:

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.

Subject Categories:

  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE