SPEECH SIGNAL ENCODING DEVICE USING ACELP IN AUTOCORRELATION AREA Russian patent published in 2017 - IPC G10L19/107 

FIELD: physics.

SUBSTANCE: speech signal encoding device by determining the codebook vector of the speech encoding algorithm comprises a matrix determining module for determining the autocorrelation matrix R and a codebook determining module for determining the codebook vector, depending on the autocorrelation matrix R. The matrix determining module is configured to determine an autocorrelation matrix R by determining the vector coefficients for the vector r. The autocorrelation matrix R contains a plurality of rows and a plurality of columns. The vector r denotes one of the columns or one of the rows of the autocorrelation matrix R, where R(i, j)=r(|i-j|), where R(i, j) denotes the coefficients of the autocorrelation matrix R, where i is the first index denoting one from the plurality of rows of the autocorrelation matrix R, and where j is the second index denoting one of the plurality of columns of the autocorrelation matrix R.

EFFECT: increasing the encoding efficiency.

24 cl, 3 dwg