METHOD FOR REALISATION OF INTERACTION BETWEEN ADAPTIVE MULTI-RATE WIDEBAND CODEC (AMR-WB-CODEC) AND MULTI-MODE WIDEBAND CODEC WITH VARIABLE RATE IN BITS (VBR-WB-CODEC)

摘要

FIELD: information technologies.;SUBSTANCE: source-controlled multi-mode wideband codec is suggested with variable rate in bits, having operation mode that provides possibility of interaction with adaptive multi-rate wideband codec, at that suggested codec provides for at least one coding mode with full rate, which provides for possibility of interaction having the first structure of bits distribution based on one of codec coding types, and at least one type of coding by means of comfort noise generation for coding of inactive speech frame, having the second structure of bits distribution based on type of coding of pause descriptor renewal frames by codec. Methods are also suggested for digital coding of sound with application of source-controlled codec for interaction with codec and transformation of codec signal frame.;EFFECT: efficient interaction between adaptive multi-speed wideband codec and multi-mode wideband codec with variable rate in bits.;39 cl, 12 dwg, 7 tbl