Unit-selection text-to-speech synthesis based on predicted concatenation parameters
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United States of America Patent
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Apr 3, 2018
Grant Date -
Nov 30, 2017
app pub date -
Sep 15, 2016
filing date -
May 26, 2016
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Abstract
Systems and processes for performing unit-selection text-to-speech synthesis are provided. In an example process, text to be converted to speech is received. The text is represented as a sequence of target units. A plurality of candidate speech segments corresponding to the sequence of target units are selected. Predicted statistical parameters of acoustic features associated with the sequence of target units are determined. The predicted statistical parameters of acoustic features are used to determine target costs and concatenation costs associated with the plurality of candidate speech segments. Based on a combined cost determined from the target costs and concatenation costs, a subset of candidate speech segments is selected from the plurality of candidate speech segments. Speech corresponding to the received text is generated using the subset of candidate speech segments.
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