Abstract Contiones – assemblies during which important Roman politicians discussed the laws proposed at the People’s Assemblies as well as candidates for the offices and presented their opinions to the Roman people – are considered by some scholars as one of the central institutions and rituals of the Roman Republic. Considering the role contiones played in the political life of the Roman Republic, we can ask how many Romans participated in them. In our paper we present results of acoustic analyses of two places at the Forum Romanum that we know were platforms for speakers at contiones: the Rostra and the podium of the Temple of Castores. The main goal of our study was to establish the maximum number of participants that could have heard speeches inteligibly. To do that we used a 3D model of Forum Romanum considering not only the geometry but also the acoustic parameters of materials used to construct the rostra and adjacent constructions. Based on the sound power level of a speaker and possible noise sources, on which the recipients were exposed to, we established areas where speeches could have been heard and understood. This in turn allowed us to estimate the maximum number of recipients.

中文翻译：

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条件的声学，或多少罗马人可以听到说话的人

摘要大会是重要的罗马政客讨论人民大会上提议的法律以及选举人选并向罗马人民表达意见的大会，一些学者认为这是罗马共和国的中央机构和仪式之一。考虑到条件在罗马共和国的政治生活中所起的作用，我们可以问多少罗马人参加了。在我们的论文中，我们介绍了Romanum论坛上两个地方的声学分析结果，我们知道它们是参加演说的人的平台：Rostra和卡斯托斯神庙的讲台。我们研究的主要目标是确定能够清晰听取演讲内容的最大参与者。为此，我们使用了Forum Romanum的3D模型，不仅考虑了几何形状，还考虑了用于构造舞台和相邻结构的材料的声学参数。根据讲话者的声功率水平和接收者可能接触到的可能的噪声源，我们建立了可以听到和理解语音的区域。反过来，这使我们能够估计最大的收件人数。