Synthesis unit selection apparatus and method, and storage medium
First Claim
1. A synthesis unit selection apparatus comprising:
- n-best obtaining means for obtaining one or more sequences of synthesis unit corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units;
obtaining means for obtaining a plurality of sequences by applying said n-best obtaining means to a corpus including a plurality of phonetic strings; and
selection means for selecting a synthesis unit for a type of synthesis unit, when the synthesis unit appears most frequently in the plurality of sequences obtained by said obtaining means.
0 Assignments
0 Petitions
Accused Products
Abstract
Input text data undergoes language analysis to generate prosody, and a speech database is searched for a synthesis unit on the basis of the prosody. A modification distortion of the found synthesis unit, and concatenation distortions upon connecting that synthesis unit to those in the preceding phoneme are computed, and a distortion determination unit weights the modification and concatenation distortions to determine the total distortion. An Nbest determination unit obtains N best paths that can minimize the distortion using the A* search algorithm, and a registration unit determination unit selects a synthesis unit to be registered in a synthesis unit inventory on the basis of the N best paths in the order of frequencies of occurrence, and registers it in the synthesis unit inventory.
-
Citations
9 Claims
-
1. A synthesis unit selection apparatus comprising:
-
n-best obtaining means for obtaining one or more sequences of synthesis unit corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; obtaining means for obtaining a plurality of sequences by applying said n-best obtaining means to a corpus including a plurality of phonetic strings; and selection means for selecting a synthesis unit for a type of synthesis unit, when the synthesis unit appears most frequently in the plurality of sequences obtained by said obtaining means.
-
-
2. A synthesis unit selection apparatus comprising:
-
n-best obtaining means for obtaining one or more sequences of synthesis unit corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; obtaining means for obtaining a plurality of sequences by applying said n-best obtaining means to a corpus including a plurality of phonetic strings; and selection means for selecting one or more synthesis units for a type of synthesis unit, in an order of frequencies of appearance in the plurality of sequences obtained by said obtaining means.
-
-
3. A synthesis unit selection method comprising:
-
an n-best obtaining step of obtaining one or more best sequences of synthesis unit corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining step of obtaining a plurality of sequences by applying said n-best obtaining step to a corpus including a plurality of phonetic strings; and a selection step of selecting a synthesis unit for a type of synthesis unit, when the synthesis unit appears most frequently in the plurality of sequences obtained in said obtaining step.
-
-
4. A synthesis unit selection method comprising:
-
an n-best obtaining step of obtaining one or more best sequences of synthesis units corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining step of obtaining a plurality of sequences by applying said n-best obtaining step to a corpus including a plurality of phonetic strings; and a selection step of selecting one or more synthesis units for a type of synthesis unit, in an order of frequencies of appearance in the plurality of sequences obtained in said obtaining step. - View Dependent Claims (5)
-
-
6. A synthesis unit selection apparatus comprising:
-
an n-best obtaining unit configured to obtain one or more sequences of synthesis units corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining unit configured to obtain a plurality of sequences by applying said n-best obtaining unit to a corpus including a plurality of phonetic strings; and a selection unit configured to select a synthesis unit for a type of synthesis unit, when the synthesis unit appears most frequently in the plurality of sequences obtained by said obtaining unit.
-
-
7. A program for implementing a synthesis unit selection method comprising:
-
an n-best obtaining step module for obtaining one or more sequences of synthesis units corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining step module for obtaining a plurality of sequences by applying said n-best obtaining step to a corpus including a plurality of phonetic strings; and a selection step module for selecting a synthesis unit for a type of synthesis unit, when the synthesis unit appears most frequently in the plurality of sequences obtained by said obtaining step module.
-
-
8. A synthesis unit selection apparatus comprising:
-
an n-best obtaining unit configured to obtain one or more best sequences of synthesis units corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining unit configured to obtain a plurality of sequences by applying said n-best obtaining unit to a corpus including a plurality of phonetic strings; and a selection unit configured to select one or more synthesis units for a type of synthesis unit, in an order of frequencies of appearance in the plurality of sequences obtained by said obtaining unit.
-
-
9. A program for implementing a synthesis unit selection method comprising:
-
an n-best obtaining step module for obtaining one or more sequences of synthesis units corresponding to a phonetic string on the basis of a distortion obtained by concatenating synthesis units; an obtaining step module for obtaining a plurality of sequences by applying said n-best obtaining step module to a corpus including a plurality of phonetic strings; and a selection step module for selecting one or more synthesis units for a type of synthesis unit, in an order of frequencies of appearance in the plurality of sequences obtained by said obtaining step module.
-
Specification