Method for the selection of synthesis units
First Claim
1. A method for selecting synthesis units of a piece of information, the information being a speech segment to be encoded that can be decomposed into synthesis units for a considered information segment, said method comprising the steps:
- determining a mean fundamental frequency value F0 for the information segment considered,identifying a sub-set of the dictionary corresponding to the frequency F0,wherein said sub-set of the dictionary has N synthesis units,selecting a sub-set of P synthesis units in said N synthesis units of said identified sub-set of the dictionary, said sub-set of P synthesis units defined as being the closest units whose mean pitch values are the closest to the pitch value F0, the rest of the processing being done on the pitch profiles associated with said P units, with P inferior to N, P=2nbits, andapplying one or more proximity criteria to the selected synthesis units to determine a synthesis unit representing the information segment.
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Abstract
A method for the selection of synthesis units of a piece of information that can be decomposed into synthesis units, comprises at least the following steps for a considered information segment: determining the mean fundamental frequency value F0 for the information segment considered; selecting a sub-set of synthesis units defined as being the sub-set whose mean pitch values are the closest to the pitch value F0; applying one or more proximity criteria to the selected synthesis units to determine a synthesis unit representing the information segment.
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Citations
20 Claims
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1. A method for selecting synthesis units of a piece of information, the information being a speech segment to be encoded that can be decomposed into synthesis units for a considered information segment, said method comprising the steps:
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determining a mean fundamental frequency value F0 for the information segment considered, identifying a sub-set of the dictionary corresponding to the frequency F0, wherein said sub-set of the dictionary has N synthesis units, selecting a sub-set of P synthesis units in said N synthesis units of said identified sub-set of the dictionary, said sub-set of P synthesis units defined as being the closest units whose mean pitch values are the closest to the pitch value F0, the rest of the processing being done on the pitch profiles associated with said P units, with P inferior to N, P=2nbits, and applying one or more proximity criteria to the selected synthesis units to determine a synthesis unit representing the information segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification