Automatic segmentation in speech synthesis
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United States of America Patent
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Sep 8, 2009
Grant Date -
Nov 22, 2007
app pub date -
Aug 1, 2007
filing date -
Mar 29, 2002
priority date (Note) -
In Force
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Abstract
Systems and methods for automatically segmenting speech inventories. A set of Hidden Markov Models (HMMs) are initialized using bootstrap data. The HMMs are next re-estimated and aligned to produce phone labels. The phone boundaries of the phone labels are then corrected using spectral boundary correction. Optionally, this process of using the spectral-boundary-corrected phone labels as input instead of the bootstrap data is performed iteratively in order to further reduce mismatches between manual labels and phone labels assigned by the HMM approach.
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