鉴赏音乐如同品酒:音乐厅的感知式评价

<正>一个音乐厅的音响效果是如何影响听众的感觉?如果运用合适的方法,通过询问听众的感受,我们会获益良多。当幕间休息开始时,我的夫人迫不及待地走向门厅。在饮完一杯葡萄酒后,她不停地讲述我们刚刚听过的音乐是多么棒,多么不可思议地听出小提琴独奏中非常轻柔的音色。我感到愕然。刚才的演出并没有使我感动,尽管那是我所喜欢的让·西贝柳斯的小提琴协奏曲。虽然独奏者表演得很好,但是不知     

Acoustics of courtyard theatres

The traditional Chinese theatre was often built with a courtyard. In such open-top space, the absence of a roof would mean little reverberation and non-diffused sound field. Acoustically the situation is quite different from that of any enclosed space. Therefore, the classic room acoustics, such as Sabine reverberation formula, would no longer be applicable due to the lack of sound reflections from the ceiling. As the parameter of reverberation time T30 shows the decay rate only, it would not properly characterize the prominent change in the fine structure of the echogram, particularly in case of a large reduction of reflections during the decay process. The sense of reverbrance in a courtyard space would differ noticeably from that of the equivalent 3D-T30 in an enclosed space. Based upon the characteristic analysis of the sound field in an open-top space, this paper presents a preliminary study on the acoustics of the courtyard theatres.