Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1991-12-20
1992-08-25
Shaw, Dale M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 46, 381 94, G10L 708
Patent
active
051425858
ABSTRACT:
Speech processing apparatus has a store containing a reference vocabulary of words and carries out active word selection in accordance with mode data supplied to the apparatus. After this, the apparatus performs dynamic template adaptation in dependence on the output of a sensor that monitors environmental influences on the speaker of the kind that modify speech sounds made by the speaker. The sensor may be responsive to vibration or acceleration forces on the speaker, the apparatus using information about how vowel and consonant groupings are influenced by forces on the speaker to perform the template adaptation. Pattern matching is used to compare the speech sounds of the speaker with the modified signals after template adaptation to identify the most likely word spoken.
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Knepper David D.
Shaw Dale M.
Smiths Industries Public Limited Company
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