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This paper presents speech signal modeling techniques that are well suited to robust recognition of connected digits in noisy environments. After several preprocessing steps speech is represented by a block-encoding of discrete cosine transform of its spectra. In this paper we combine linear predictive coding (LPC), morphological filtering, and long block(More)
A visual speech training aid for persons with hearing impairments has been developed using a Windows-based multimedia computer. In previous papers, the signal processing steps and display options have been described for giving real-time feedback about the quality of pronunciation for 10 steady-state American English monopthong vowels (/aa/, /iy/, /uw/,(More)
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