Method and system for defining a sequence of sound modules for synthesis of a speech signal in a tonal language
First Claim
Patent Images
1. A method for defining a sequence of sound modules for synthesis of a speech signal in a tonal language in accordance with a predetermined sequence of speech modules, comprising:
- choosing groups of sound modules which can be associated with the speech modules in the predetermined sequence; and
selecting from the groups of sound modules a corresponding sound module for each speech module based on at least one suitability function defining a suitability distance from the speech module corresponding thereto and weighted by applying a weighting factor to a power thereof, resulting in the predetermined sequence of speech modules having a sequence of corresponding sound modules with a global suitability distance quantitatively describing a preferred suitability among the groups of sound modules for representation of the predetermined sequence of speech modules, each corresponding sound module being a triphone formed of only one phoneme with respective contexts and with each syllable in the tonal language being composed of at least one triphone.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a method for defining a sequence of sound modules for synthesis of a speech signal in a tonal language corresponding to a sequence of speech modules. The method according to the invention differs from known methods in that the speech modules represent triphones, which each comprise one phoneme with the respective context, and with syllables in the tonal language being composed of one or more triphones. This results in a high level of flexibility for the synthesis of tonal languages.
-
Citations
20 Claims
-
1. A method for defining a sequence of sound modules for synthesis of a speech signal in a tonal language in accordance with a predetermined sequence of speech modules, comprising:
-
choosing groups of sound modules which can be associated with the speech modules in the predetermined sequence; and selecting from the groups of sound modules a corresponding sound module for each speech module based on at least one suitability function defining a suitability distance from the speech module corresponding thereto and weighted by applying a weighting factor to a power thereof, resulting in the predetermined sequence of speech modules having a sequence of corresponding sound modules with a global suitability distance quantitatively describing a preferred suitability among the groups of sound modules for representation of the predetermined sequence of speech modules, each corresponding sound module being a triphone formed of only one phoneme with respective contexts and with each syllable in the tonal language being composed of at least one triphone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A computer readable medium storing at least one program embodying a method for defining a sequence of sound modules for synthesis of a speech signal in a tonal language in accordance with a predetermined sequence of speech modules, said method comprising:
-
choosing groups of sound modules which can be associated with the speech modules in the predetermined sequence; and selecting from the groups of sound modules a corresponding sound module for each speech module based on at least one suitability function defining a suitability distance from the speech module corresponding thereto and weighted by applying a weighting factor to a power thereof, resulting in the predetermined sequence of speech modules having a sequence of corresponding sound modules with a global suitability distance quantitatively describing a preferred suitability among the groups of sound modules for representation of the predetermined sequence of speech modules, each corresponding sound module being a triphone formed of only one phoneme with respective contexts and with each syllable in the tonal language being composed of at least one triphone. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A system for defining a sequence of sound modules for synthesis of a speech signal in a tonal language in accordance with a predetermined sequence of speech modules, comprising:
a processor programmed to choose groups of sound modules which can be associated with the speech modules in the predetermined sequence and to select from the groups of sound modules a corresponding sound module for each speech module based on at least one suitability function defining a suitability distance from the speech module corresponding thereto and weighted by applying a weighting factor to a power thereof, resulting in the predetermined sequence of speech modules having a sequence of corresponding sound modules with a global suitability distance quantitatively describing a preferred suitability among the groups of sound modules for representation of the predetermined sequence of speech modules, each corresponding sound module being a triphone formed of only one phoneme with respective contexts and with each syllable in the tonal language being composed of at least one triphone. - View Dependent Claims (18, 19, 20)
Specification