TAILIEUCHUNG - Báo cáo khoa học: "Assigning Intonational Featuresin Synthesized Spoken Directions"

cannot be correctly produced by the text to speech system. To alleviate some of these problems, we modified Direction Assistance to make both attentional and intentional information about the route description available for the assignment of intonational features. With this information, we generate spoken directions using the Bell Labo~ ratories Text-to-Speech System[21] in which pitch range, accent placement, phrasing, and tune can be varied to communicate attentional and intentional structure. . | Assigning International Features in Synthesized Spoken Directions James Raymond Davis The Media Laboratory MIT E15-325 Cambridge MA 02139 Julia Hirschberg AT T Bell Laboratories 2D-450 600 Mountain Avenue Murray Hill NJ 07974 Abstract Speakers convey much of the information hearers use to interpret discourse by varying prosodic features such as PHRASING PITCH ACCENT placement TUNE and PITCH RANGE. The ability to emulate such variation is crucial to effective synthetic speech generation. While text-to-speech synthesis must rely primarily upon structural information to determine appropriate intonational features speech synthesized from an abstract representation of the message to be conveyed may employ much richer sources. The implementation of an intonation assignment component for Direction Assistance a program which generates spoken dừections provides a first approximation of how recent models of discourse structure can be used to control intonational variation in ways that build upon recent research in intonational meaning. The implementation further suggests ways in which these discourse models might be augmented to permit the assignment of appropriate intonational features. Introduction Direction Assistance 1 was written to provide spoken directions for driving between any two points in the Boston area 7 over the telephone. Callers specify their origin and destination via touch-tone input. The program finds a route and synthesizes a spoken description of that route. Earlier versions of Direction Assistance exhibited notable deficiencies in prosody when a simple text-to-speech system was used to produce such descriptions because prosody depends in part on discourse-level phenomena such as topic structure and information status which are not generally inferrable from text and thus The international component described here was completed at AT T Bell Laboratories in the summer of 1987. We thank Janet Pierrehumbert and Gregory Ward for valuable discussions. 1 .

• Báo cáo khoa học
• Assigning Intonational Featuresin
• Synthesized Spoken Directions
• James Raymond
• scientific reports
• model language
• process natural language
• Dialog Control
• Natural Language System
• Dialog Control in a Natural Language System
• Expanding the Horizons
• Natural Language Interfaces
• Phil Hayes
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• NATURAL LANGUAGE SYSTEMS
• Workshops
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• INTERACTION WITH MACHINES
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• COMPUTER INTEBFACE DESIGN MURRAY TUROFF DEPARTMENT OF COMPUTER
• IiVFORMATION SCIENCE IIEW JERSEY INSTITUTE OF TECHNOLOGY
• EVALUATION OF NATURAL LANGUAGE
• INTERFACES TO DATABASE SYSTEMS
• A PANEL DISCUSSION
• database query system
• J
• Norwood Crout
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• Bozena Henisz
• INTERPRETING NATURAL LANGUAGE
• DATABASE UPDATES
• S
• Jermld Kaplan Jim David
• TRANSPORTABLE NATURAL LANGUAGE
• INTERFACES TO DATABASES
• Gary G
• Hendrlx and William H
• Lewis
• DATABASES THEORETICAL
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• TRANSPORTABLE NATURAL LANGUAGE INTERFACES
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• Barbara J
• Grosz
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• NATURAL LANGUAGE ACCESS TO DATABASES
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• Petrick
• Domain Independent
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• Douglas E
• Appelt
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• MENTING A DATABASE
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• Jeffrey Conklin David D
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• Shapiro
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• Mark H
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