There is an error in Equation (3) on page 770. The equation should read

$${c}_{r}=-\frac{2\sum\limits_{n=q}^{N-1}{\upeta }_{q-1}\left(n\right){\upnu }_{q-1}\left(n-1\right)}{\sum\limits_{n=q}^{N-1}\left[{\upeta }_{q-1}^{2}\left(n\right)+{\upnu }_{q-1}^{2}\left(n-1\right)\right]},$$
(3)

The caption for Fig. 3 on page 773 should read:

Fig. 3. Berg spectral estimates for the speech sound frame "a" of orders p = 10; 32; 50 (curves 1–3) against the background of the Schuster periodogram (curve 4).

The caption for Fig. 4 on page 773 should read:

Fig. 4. Graphs of the normalized power spectrum estimation (5) of the speech sound signal "a" at the output of the flattening filter (4) with order p = 32 of the autoregression model.