FIELD: physics; acoustics.
SUBSTANCE: invention concerns to numeral processing of an audiosignal. The sound reproduction system contains device (1) inputs of a numeral audiosignal, processor (2, DSP) a numeral audiosignal and device (3) deductions of a numeral audiosignal and processor (2, DSP) a numeral audiosignal are contained by filter (21) upper frequencies with a transmission band (f) between the first and second frequencies, for example, between 300Hz and 2KHz, cramping amplifier (22) for squeezing and amplification of a signal to necessary limits of amplitude and terminator for restriction of the signal exceeding level of restriction and preferably filter (23) inferior frequencies for a filtration of the signal given by the cramping amplifier, and for granting of a target signal and transmission band (f) the filter of the inferior frequencies is in limits 2KHz-Fs/2 where Fs - frequency of sample and 10 Fs/2 can make, for example, 4KHz. Parametres of various devices, for example, frequency of a cutoff, the order of the band-pass filter, amplification, etc., preferably depend on the measured noise level.
EFFECT: making of system and an expedient of sound reproduction with the refined legibility.
23 cl, 14 dwg, 1 tbl
