Apparatus, methods, and programming for speech synthesis via bit manipulations of compressed database
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United States of America Patent
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Issued Date -
Apr 15, 2004
app pub date -
Oct 10, 2002
filing date -
Oct 10, 2002
priority date (Note) -
Abandoned
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Abstract
Text-to-speech synthesis modifies the pitch of the sounds it concatenates to generate speech, when such sounds are in compressed, coded form, so as to make them sound better together. The pitch, duration, and energy of such concatenated sounds can be altered to better match, respectively, pitch, duration, and/or energy contours generated from phonetic spelling of the speech to be synthesized, which can, in turn, be derived from the text to be synthesized. The synthesized speech can be generated from the encoded sound of sub-word snippets as well as of one or more whole words. The duration of concatenated sounds can be changed by inserting or deleting sound frames associated with individual snippets. Such text-to-speech can be used to say words recognized by speech recognition, such as to provide feedback on the recognition. Such text-to-speech synthesis can be used in portable devices such as cellphones, PDAs, and/or wrist phones.
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