Speech
The SDC speech understanding system
Barnett, J. | Bernstein, M. | Gillman, R. | Kameny, I.
The performance of a voice- and touch-driven natural language editor is described as subjects used it to do editing tasks. The system features the abilities to process imperative sentences with noun phrases that may include pronouns, quantifiers and references to dialogue focus. The system utilizes a commerical speaker-dependent connected-speech recognizer, and processes sentences spoken by human subjects at the rate of five to seven sentences per minute. Sentence recognition percentages for our expert speaker and for subjects, were 98 and around the mid 70s, respectively. Subjects had more difficulty learning to use connected speech than had been the case in earlier experiments with discrete speech.
The HEARSAY-II speech understanding system: Integrating knowledge to resolve uncertainty
The Hearsay-H speech-understanding system (SUS) developed at Carnegie-Mellon University recognizes connected speech in a 1000-word vocabulary with correct interpretations for 90 percent of test sentences. Its basic methodology involves the application of symbolic reasoning as an aid to signal processing. A marriage of general artificial intelligence techniques with specific acoustic and linguistic knowledge was needed to accomplish satisfactory speech-This research was supported chiefly by Defense Advanced Research Projects Agency contract F44620-73- C-0074 to Carnegie-Mellon University. In addition, support for the preparation of this paper was provided by USC/ISI, Rand, and the University of Massachusetts. We gratefully acknowledge their support. Views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official opinion or policy of DARPA, the U.S. government, or any other person or agency connected with them.
Trainable grammars for speech recognition
The purpose of the Acoustical Society of America is to generate, disseminate, and promote the knowledge and practical applications of acoustics. Established in 1929, the present membership includes leaders in acoustics worldwide. Diverse fields of interest in acoustics include physics, engineering, architecture, noise, oceanography, biology, speech and hearing, psychology and music. The purpose of the Society is to generate, disseminate, and promote the knowledge and practical applications of acoustics.