解放后新建的食堂中,大多数都兼作礼堂。但由于设计时音响问题考虑不周,以致在里面作报告时有人反映听不清,个别严重的甚至不得不进行翻修。这种情况,一方面是设计人的疏忽,而另一方面室内音质计算比较繁杂也是一个原因。 就食堂的使用性质来说,由于人流交通,采光通风等要求的限制,因而在面积、容积、高度、门窗大小等方面,必定存在某种关系。本文就是利用近三十个食堂的调查所得到的一些关系,将混响时间计算作了简化,现将简化方法介绍于后。 Most of the new canteens built after liberation are doubled as auditoriums. However, due to ill-considered design issues with sound, some people reported that they could not hear clearly when they made a report. Some of them were even severely compelled to carry out renovations. This situation, on the one hand, is the designer’s negligence, and on the other hand, the complexity of indoor sound quality calculation is also a reason. In terms of the nature of the use of the canteens, due to restrictions on the flow of people, lighting, ventilation, etc., there must be some relationship in area, volume, height, and size of doors and windows. This article uses some of the relationships obtained from surveys of nearly 30 canteens to simplify reverberation time calculations. We now introduce the simplified method.