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Application of a digital inverse filter for automatic formant and Foanalysis

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1 Author(s)
Markel, J. ; SCRL, Santa Barbara, Calif

In this paper, a new algorithm based upon a digital inverse filter formulation is presented for automatically determining VU, a voiced-unvoiced decision (VU = 0 during unvoiced speech and VU = 1 during voiced speech), F0, the fundamental frequency, and Fi, i = 1, 2, 3, the first three formant frequencies, as a function of time. Formant trajectory estimates are obtained for all speech sounds that satisfy VU = 1.

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Audio and Electroacoustics, IEEE Transactions on  (Volume:21 ,  Issue: 3 )