Temporal decorrelation method for robust speaker verification

Details Temporal decorrelation method for robust speaker verification Temporal decorrelation method for robust speaker verification

1991-02-28

1992-11-24

MacDonald, Allen R.

G10L 916

Patent

active

051670046

ABSTRACT:
A speaker voice verification system uses temporal decorrelation linear transformation and includes a collector for receiving speech inputs from an unknown speaker claiming a specific identity, a word-level speech features calculator operable to use a temporal decorrelation linear transformation for generating word-level speech feature vectors from such speech inputs, word-level speech feature storage for storing word-level speech feature vectors known to belong to a speaker with the specific identity, a word-level speech feature vectors received from the unknown speaker with those received from the word-level speech feature storage, and speaker verification decision circuitry for determining, based on the similarity score, whether the unknown speaker's identity is the same as that claimed. The word-level vector scorer further includes concatenation circuitry as well as a word-specific orthogonalizing linear transformer. Other systems and methods are also disclosed.

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Roucos, S., "Stochastic Segment Modeling Using the Estimate-Maximize Algorithm", ICASSP '88, Apr. 11-14, 1988, New York, pp. 127-130.

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