Required attention for synthesized speech perception for three levels of linguistic redundancyThe study evaluates the attention required for synthesized speech perception with reference to three levels of linguistic redundancy. Twelve commercial airline pilots were individually tested for 16 cockpit warning messages eight of which consisted of two monosyllabic key words and eight of which consisted of two polysyllabic key words. Three levels of linguistic redundancy were identified: monosyllabic words, polysyllabic words, and sentences. The experiment contained a message familiarization phase and a message recognition phase. It was found that: (1) when the messages are part of a previously learned and recently heard set, and the subject is familiar with the phrasing, the attention needed to recognize the message is not a function of the level of linguistic redundancy, and (2) there is a quantitative and qualitative difference between recognition and comprehension processes; only in the case of active comprehension does additional redundancy reduce attention requirements.
Document ID
19780053622
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Simpson, C. A. (NASA Ames Research Center Moffett Field, CA, United States)
Hart, S. G. (NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1977
Subject Category
Behavioral Sciences
Meeting Information
Meeting: Meeting of the Acoustical Society of America