Speech synthesis method
First Claim
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1. A speech synthesis method comprising:
- an obtaining step of obtaining a plurality of pieces of reading prosody information;
a calculation step of calculating a cost when an optimum phoneme sequence is selected with respect to each piece of the reading prosody information obtained in the obtaining step; and
a speech synthesis step of synthesizing speech with respect to the reading prosody information selected based on the cost calculated in the calculation step.
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Abstract
In a phoneme-selection-type speech synthesis apparatus, sound quality when a suitable phoneme is not found is prevented from being deteriorated without changing an input sentence. A plurality of pieces of reading prosody information are obtained. The cost when an optimum phoneme sequence is selected with respect to each of the plurality of pieces of reading prosody information is calculated. Speech with respect to the reading prosody information in which the cost is minimized is synthesized.
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Citations
12 Claims
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1. A speech synthesis method comprising:
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an obtaining step of obtaining a plurality of pieces of reading prosody information;
a calculation step of calculating a cost when an optimum phoneme sequence is selected with respect to each piece of the reading prosody information obtained in the obtaining step; and
a speech synthesis step of synthesizing speech with respect to the reading prosody information selected based on the cost calculated in the calculation step. - View Dependent Claims (2, 3)
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4. A speech synthesis method comprising:
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an obtaining step of analyzing text information and obtaining a plurality of analysis results;
a calculation step of calculating a cost when an optimum phoneme sequence is selected with respect to each of the analysis results obtained in the obtaining step; and
a speech synthesis step of synthesizing speech for the analysis result selected based on the cost calculated in the calculation step. - View Dependent Claims (5, 6, 7)
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8. A speech synthesis apparatus comprising:
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obtaining means for obtaining a plurality of pieces of reading prosody information;
calculation means for calculating a cost when an optimum phoneme sequence is calculated for each piece of the reading prosody information obtained by the obtaining means; and
speech synthesis means for synthesizing speech with respect to the reading prosody information selected based on the cost calculated by the calculation means. - View Dependent Claims (9)
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10. A speech synthesis apparatus comprising:
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obtaining means for analyzing text information and obtaining a plurality of analysis results;
calculation means for calculating a cost when an optimum phoneme sequence obtained by the obtaining means is selected with respect to each analysis result; and
speech synthesis means for synthesizing speech with respect to an analysis result selected based on the cost calculated by the calculation means. - View Dependent Claims (11, 12)
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Specification