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- W2792107183 abstract "Traditional method to estimate formant based on LPC calculates the roots from the LP polynomial coefficients, and then gets formant feature from conjugate complex roots. There is a problem of formant combination when calculating the formants. An improved formant extraction method based on LPC has been proposed in this paper. First pairs of complex-conjugated roots are calculated by conventional method, and then getting corresponding angle of poles by maxima method in LPC spectrum. In this part, we use the maxima method to search local maximum points and avoid getting all angle data, this process accelerates the algorithm speed. Finally an interaction factor is used to consider pole interacion effect and modified the formant bandwidths to make the spectral energy of formant polynomial to be equal to the spectral before deleting spurious roots. The results show that this method can effectively solve combination of formant, and this new formant extraction method gets a higher recoginition rate in classification of singer speech feature than traditional method." @default.
- W2792107183 created "2018-03-29" @default.
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- W2792107183 date "2017-10-01" @default.
- W2792107183 modified "2023-09-26" @default.
- W2792107183 title "An improved singer's formant extraction method based on LPC algorithm" @default.
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- W2792107183 doi "https://doi.org/10.1109/cisp-bmei.2017.8302101" @default.
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