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A statistical pattern recognition approach to robust recursive identification of nonstationary AR model of speech production system

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3 Author(s)
Markovic, M.Z. ; Inst. of Appl. Math. & Electron., Belgrade, Serbia ; Kovacevic, B.D. ; Milosavljevic, M.M.

We propose a new robust recursive procedure based on the weighted recursive least squares (WRLS) algorithm with variable forgetting factor (VFF) and frame-based quadratic classifier for identification of nonstationary AR model of speech. Two versions of the frame-based quadratic classifier design procedure are elaborated upon. Experimental results are obtained in analyzing speech signal on voiced and mixed excitation frames

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Speech and Audio Processing, IEEE Transactions on  (Volume:4 ,  Issue: 6 )