METHOD OF QUANTIZATION OF CODING COEFFICIENTS WITH LINEAR PREDICTION, METHOD OF SOUND CODING, METHOD OF DEQUANTIZATION OF CODING COEFFICIENTS WITH LINEAR PREDICTION, METHOD OF SOUND DECODING AND A MEDIUM RECORDER Russian patent published in 2018 - IPC H03M7/30 G10L19/00 

FIELD: data processing.

SUBSTANCE: invention relates to the quantization of a speech or audio signal. It is provided to compare the prediction error with the threshold value; select one of a plurality of quantization modules in an open-loop manner in response to a prediction error comparison result with said threshold value; quantize an input signal including at least one of a speech signal or an audio signal, without inter-frame prediction based on the selected quantization unit and quantize said input signal with inter-frame prediction based on the selected quantization unit.

EFFECT: increased quantization performance of the quantization module.

11 cl, 38 dwg, 9 tbl