Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Patent
1997-03-19
1999-12-21
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
706 50, G01L 506, G01L 900
Patent
active
06006188&
ABSTRACT:
A speech-based system for assessing the psychological, physiological, or other characteristics of a test subject is described. The system includes a knowledge base that stores one or more speech models, where each speech model corresponds to a characteristic of a group of reference subjects. Signal processing circuitry, which may be implemented in hardware, software and/or firmware, compares the test speech parameters of a test subject with the speech models. In one embodiment, each speech model is represented by a statistical time-ordered series of frequency representations of the speech of the reference subjects. The speech model is independent of a priori knowledge of style parameters associated with the voice or speech. The system includes speech parameterization circuitry for generating the test parameters in response to the test subject's speech. This circuitry includes speech acquisition circuitry, which may be located remotely from the knowledge base. The system further includes output circuitry for outputting at least one indicator of a characteristic in response to the comparison performed by the signal processing circuitry. The characteristic may be time-varying, in which case the output circuitry outputs the characteristic in a time-varying manner. The output circuitry also may output a ranking of each output characteristic. In one embodiment, one or more characteristics may indicate the degree of sincerity of the test subject, where the degree of sincerity may vary with time. The system may also be employed to determine the effectiveness of treatment for a psychological or physiological disorder by comparing psychological or physiological characteristics, respectively, before and after treatment.
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Alexeev Vladimir
Baker George
Bogdashevsky Rostislav
Stanton Harrison
Yarigin Vitaly
Dendrite, Inc.
Hudspeth David R.
Smits Talivaldis Ivars
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