Accession Number:

ADA073703

Title:

Vocabulary Specification for Automatic Speech Recognition in Aircraft Cockpits.

Descriptive Note:

Final rept. Sep 78-Jun 79,

Corporate Author:

LOGICON INC SAN DIEGO CA TACTICAL AND TRAINING SYSTEMS DIV

Report Date:

1979-08-31

Pagination or Media Count:

93.0

Abstract:

The general focus of this research was to design a communication media a vocabulary that is advantageous to both machine recognition and human production of speech events. The problem was analyzed from a human factors perspective that centered upon the man-computer dialogue interaction required for cockpit application of ASR. The results indicated that phrase familiarity and stimulus familiarity had major impact on the learning and utilization of the phrases in the paired-associate task. Phrase length and meaningfulness did not appear to differentially affect either the learning or utilization of the paired associate. In addition, pretraining of stimulus familiarity did not seem to result in improved performance. Acoustic lexical confusability also was discussed in general methodological terms. The results of the study were interpreted in terms of a contextualist viewpoint with the necessity of a broader contextual manipulation being pointed out as a requirement for further research.

Subject Categories:

  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE