ESTIMATION OF FORMANT FREQUENCIES BASED ON THE CORRELOGRAMM METHOD OF SPECTRAL ANALYSIS AND BINARY-SIGNED STOCHASTIC QUANTIZATION
The problem of calculating digital estimates of the formant frequencies of complex signals is considered. Conversion of the analyzed signals into digital form is carried out using binary-sign stochastic quantization. Based on the correlogram method, mathematical relations are obtained for calculating the estimate of the power spectral density and estimating its second-order derivative. The main operations of these ratios are the arithmetic operations of addition and subtraction, as well as the operations of logical processing of the power spectral density estimates. At the same time, the total number of multiplication operations has been reduced. The practical implementation of the obtained relations provides a decrease in the multiplicative complexity of computational algorithms and an increase in the computational efficiency of estimating formant frequencies.