Automatic pronunciation scoring for language learning
AssigneeLucent Technologies Inc.
InventorsSunil K. Gupta, Ziyi Lu, Fengguang Zhao
Life of this patent
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Abstract
A method and apparatus for generating a pronunciation score by receiving a user phrase intended to conform to a reference phrase and processing the user phrase in accordance with at least one of an articulation-scoring engine, a duration scoring engine and an intonation-scoring engine to derive thereby the pronunciation score.
Claims18
A method for generating a pronunciation score, comprising:
- receiving a user phrase intended to conform to a reference phrase;
- and
- processing said user phrase in accordance with an articulation-scoring engine, a duration scoring engine and an intonation-scoring engine to derive thereby said pronunciation score.
8 The method of claim 7, wherein said normalized duration series D for a phoneme is described by the equation:
- 14 D = max { 0 , 1 - ∑ i = 1 N [LeftBracketingBar] L i - T i [RightBracketingBar] } ;
- where N is the total number of phonemes in a phrase, Li is the normalized duration series for the user phrase and Ti is the normalized duration series for the reference phrase.
A computer readable medium for storing instructions that, when executed by a processor, perform a method for generating a pronunciation score, comprising:
- receiving a user phrase intended to conform to a reference phrase;
- and
- processing said user phrase in accordance with at least one of an articulation-scoring engine, a duration scoring engine and an intonation-scoring engine to derive thereby said pronunciation score.
Apparatus for generating a pronunciation score, comprising:
- means for receiving a user phrase intended to conform to a reference phrase;
- and
- means for processing said user phrase in accordance with at least one of an articulation-scoring engine, a duration scoring engine and an intonation-scoring engine to derive thereby said pronunciation score.
Dependencies are inferred from the claim text.