Concatenation cost in speech synthesis for acoustic unit sequential pair using hash table and default concatenation cost
First Claim
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1. A method comprising:
- synthesizing speech from a text;
identifying an acoustic unit sequential pair in the speech;
searching for a concatenation cost for the acoustic unit sequential pair in a database using a hash table for the database; and
when the concatenation cost is not found in the database, assigning a default value as the concatenation cost for the acoustic unit sequential pair.
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Abstract
A speech synthesis process can record concatenation costs of unit sequential pairs to a concatenation cost database for speech synthesis by synthesizing speech from a text, identifying an acoustic unit sequential pair in the speech, searching for a concatenation cost for the acoustic unit sequential pair in a database using a hash table for the database, and when the concatenation cost is not found in the database, assigning a default value as the concatenation cost for the acoustic unit sequential pair.
87 Citations
20 Claims
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1. A method comprising:
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synthesizing speech from a text; identifying an acoustic unit sequential pair in the speech; searching for a concatenation cost for the acoustic unit sequential pair in a database using a hash table for the database; and when the concatenation cost is not found in the database, assigning a default value as the concatenation cost for the acoustic unit sequential pair. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising:
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a processor; and a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising; synthesizing speech from a text; identifying an acoustic unit sequential pair in the speech; searching for a concatenation cost for the acoustic unit sequential pair in a database using a hash table for the database; and when the concatenation cost is not found in the database, assigning a default value as the concatenation cost for the acoustic unit sequential pair. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A non-transitory computer-readable storage device having instructions stored which, when executed by a computing device, cause the computing device to perform operations comprising:
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synthesizing speech from a text; identifying an acoustic unit sequential pair in the speech; searching for a concatenation cost for the acoustic unit sequential pair in a database using a hash table for the database; and when the concatenation cost is not found in the database, assigning a default value as the concatenation cost for the acoustic unit sequential pair. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification