The influence of opera stage layout on the acoustic properties of the auditorium was analyzed in this paper. A modified ray method was used in the numerical calculations of the acoustic field parameters (computer program “RAY MODEL”). The calculations were carried out for three cases of the stage layout. The acoustic pressure distribution, reverberation time, early decay time, C80 coefficient and the center time were analyzed. The results showed that the layout of scenery in the stage influences significantly the music quality in the auditorium.
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