FIELD: radio and communications engineering. SUBSTANCE: voice and music signal transmitting system has coder wherein input signal is separated into two spectral parts. Each of these parts is encoded by respective sub-coder. Transmission characteristics can be considerably improved by encoding spectral part in time- domain coder and additional spectral part, in converted-domain coder. EFFECT: improved noise immunity and validity of signals received. 10 cl, 8 dwg, 3 tbl
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