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Generated January 20, 2018

Prosody template matching for text-to-speech systems

Patent Number: 6,845,358

Patent Information

A prosody matching template in the form of a tree structure stores indices which point to lookup table and template information prescribing pitch and duration values that are used to add inflection to the output of a text-to-speech synthesizer. The lookup module employs a search algorithm that explores each branch of the tree, assigning penalty scores based on whether the syllable represented by a node of the tree does or does not match the corresponding syllable of the target word. The path with the lowest penalty score is selected as the index into the prosody template table. The system will add nodes by cloning existing nodes in cases where it is not possible to find a one-to-one match between the number of syllables in the target word and the number of nodes in the tree.
Patent Number: 6,845,358
Issue Date: 2005-01-18

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Patents cited by this patent

Patent Title
6,490,563 Proofreading with text to speech feedback
6,266,637 Phrase splicing and variable substitution using a trainable speech synthesizer
6,260,016 Speech synthesis employing prosody templates
6,185,533 Generation and synthesis of prosody templates
6,163,769 Text-to-speech using clustered context-dependent phoneme-based units
6,101,470 Methods for generating pitch and duration contours in a text to speech system
6,055,498 Method and apparatus for automatic text-independent grading of pronunciation for language instruction
6,052,664 Apparatus and method for electronically generating a spoken message
6,029,132 Method for letter-to-sound in text-to-speech synthesis
5,915,237 Representing speech using MIDI
5,905,972 Prosodic databases holding fundamental frequency templates for use in speech synthesis
5,890,117 Automated voice synthesis from text having a restricted known informational content

Patents that cite this patent

Patent Title
9,286,886 Methods and apparatus for predicting prosody in speech synthesis
9,093,067 Generating prosodic contours for synthesized speech
8,583,438 Unnatural prosody detection in speech synthesis
8,321,225 Generating prosodic contours for synthesized speech
7,401,020 Application of emotion-based intonation and prosody to speech in text-to-speech systems
6,950,798 Employing speech models in concatenative speech synthesis

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