Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Reexamination Certificate
2007-11-13
2007-11-13
Dorvil, Richmond (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
C704S226000, C704S208000
Reexamination Certificate
active
09992988
ABSTRACT:
The present invention relates to a system and method for automatically verifying that a message received from a user is intelligible. In an exemplary embodiment, a message is received from the user. A speech level of the user's message may be measured and compared to a pre-determined speech level threshold to determine whether the measured speech level is below the pre-determined speech level threshold. A signal-to-noise ratio of the user's message may be measured and compared to a pre-determined signal-to-noise ratio threshold to determine whether the measured signal-to-noise ratio of the message is below the pre-determined signal-to-noise ratio threshold. An estimate of intelligibility for the user's message may be calculated and compared to an intelligibility threshold to determine whether the calculated estimate of intelligibility is below the intelligibility threshold. If any of the measured speech level, measured signal-to-noise ratio and calculated estimate of intelligibility of the user's message are determined to be below their respective thresholds, the user may be prompted to repeat at least a portion of the message.
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Cohen Harvey S.
Goldberg Randy G.
Rosen Kenneth H.
AT&T Corp.
Dorvil Richmond
Vo Huyen X.
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