FIELD: voice coding and decoding. SUBSTANCE: method involves voice coding with 90-millisecond bit frame obtained for transmission over satellite communication channel. Voice signal is converted into digital form to produce digital voice samples which are then divided into sub-frames. Model parameters that include set of spectral amplitudes in the form of spectral information for sub-frame are estimated for each sub-frame. Two serial sub-frames out of sequence of sub-frames are integrated into block and their spectral-amplitude parameters are jointly quantized. Joint quantization includes generation of predicted spectral-amplitude parameters from quantized parameters of spectral amplitudes out of preceding block, computation of residual parameters as difference between spectral-amplitude parameters and predicted spectral-amplitude parameters, integration of residual parameters of both sub-frames inside block, and use of vector quantizers for quantizing integrated residual parameters into set of encoded spectral bits. Redundant error control bits can be added to encoded spectral bits from each block to protect encoded spectral bits inside block against bit errors. Added redundant error control bits and encoded spectral bits from two serial blocks can be integrated into 90-millisecond bit frame for transmission over satellite communication channel. EFFECT: enhanced precision of voice reproduction. 30 cl, 8 dwg
