ABSTRACT

In the procedure of acoustic design for this chosen auditorium with a bell-shaped plane in China, there appear several apparent differences indicating that a listener, particularly in the audience area in the designed acoustical configuration, would have a subjective perception of greater sound source strength, slightly higher reverberation, higher sound clarity but poorer lateral sound energy disturbance on the whole. Furthermore, concerning the audience area characterization, it is observed that persons on the platform would appreciate a stronger sensation of reverberation than in the typical positions of the audience area configuration. Besides, the subjective aspects that remain common for both configuration situations are the perceived lateral sound energy distribution in the middle audience area, as well as the apparent sound width, but some stronger differentiation in the back corners of upper and lower seats, elaborating a quieter sound environment there when one participating in an activity or enjoying a performance on the stage.