Polyphone network method and apparatus
First Claim
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1. A method to provide a polyphone network, comprising:
- selecting a plurality of spoken languages;
identifying at least some phones for each of the plurality of spoken languages;
providing a polyphone network that is a hierarchical phone correspondence network comprising the at least some phones, and that includes a low resolution level of phone information, wherein the phone information of the low resolution level is determined from corresponding higher resolution phone information levels as a function of at least;
articulatorily defined phonetic similarity as between the higher resolution phone information level phones; and
at least one language-independent phonological factor.
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Abstract
Acoustic phones (preferably drawn 12 from a plurality of spoken languages) are provided 11. A hierarchically-organized polyphone network (20) organizes views of these phones of varying resolution and phone categorization as a function, at least in part, of phonetic similarity (14) and at least one language-independent phonological factor (15). In a preferred approach, a unique transcription system serves to represent the phones using only standard, printable ASCII characters, none of which comprises a special character (such as those characters that have a command significance for common script interpreters such as the UNIX command line).
25 Citations
25 Claims
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1. A method to provide a polyphone network, comprising:
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selecting a plurality of spoken languages; identifying at least some phones for each of the plurality of spoken languages; providing a polyphone network that is a hierarchical phone correspondence network comprising the at least some phones, and that includes a low resolution level of phone information, wherein the phone information of the low resolution level is determined from corresponding higher resolution phone information levels as a function of at least; articulatorily defined phonetic similarity as between the higher resolution phone information level phones; and at least one language-independent phonological factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus comprising:
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a speech recognition engine; a memory operable coupled to the speech recognition engine and containing a set of models selected as a function, at least in part, of a polyphone network that is a hierarchical phone correspondence network comprised of a plurality of phones, which phones correspond to phones as used in a plurality of spoken languages and wherein relationships between the phones at lower resolution levels are represented hierarchically by nodes that correspond to merged phones from higher resolution levels, wherein merging of the phones to form the nodes is based, at least in part, upon articulatory phonetic similarity as between the phones and at least one language-independent phonological factor. - View Dependent Claims (24, 25)
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Specification