SYSTEM AND METHOD FOR PROSODICALLY MODIFIED UNIT SELECTION DATABASES
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United States of America Patent
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Jul 16, 2020
app pub date -
Mar 24, 2020
filing date -
May 12, 2014
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Abstract
Systems, methods, and computer-readable storage devices to improve the quality of synthetic speech generation. A system selects speech units from a speech unit database, the speech units corresponding to text to be converted to speech. The system identifies a desired prosodic curve of speech produced from the selected speech units, and also identifies an actual prosodic curve of the speech units. The selected speech units are modified such that a new prosodic curve of the modified speech units matches the desired prosodic curve. The system stores the modified speech units into the speech unit database for use in generating future speech, thereby increasing the prosodic coverage of the database with the expectation of improving the output quality.
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