Speech-recognition circuitry employing phoneme estimation

Details Speech-recognition circuitry employing phoneme estimation Speech-recognition circuitry employing phoneme estimation

G - Physics

10

L

354/47

G10L 11/00 (2006.01) G10L 15/02 (2006.01) G10L 21/02 (2006.01)

Patent

CA 1329272

ABSTRACT OF THE DISCLOSURE A phoneme estimator (12) in a speech-recognition system (10) includes trigger circuitry (18, 22) for identifying the segments of speech that should be analyzed for phoneme content. Speech-element processors (24, 26, and 28) calculate the likelihoods that currently received speech contains individual phonemes, but they operate only when the trigger circuitry identifies such segments. The computation-intensive processing for determining phoneme likelihoods is thus performed on only a small subset of the received speech segments. The accuracy of the speech- element processors (24, 26, and 28) is enhanced because these processors operate by recognition of patterns not only in elements of the data-reduced representations of the received speech but also in higher-ordered products of those elements; that is, these circuits employ non-linear modeling for phoneme identification.

563601

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