FIELD: computer technology. 
SUBSTANCE: invention relates to the field of computer technology for processing audio data. The expected result is achieved by receiving a line input audio signal from a sound source, controlling the volume of the line input audio signal and generating an early reflected sound control signal in order to reproduce the early reflected sound of a predetermined space, which is the purpose for reproducing the sound field, using a line input audio signal with the volume obtained as a result of control. 
EFFECT: increase in the accuracy of providing the required sound field for an electronic musical instrument. 
20 cl, 21 dwg
             
         
            
              
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