Acoustic investigation of architectural spaces with an emphasis on traditional architectural decorations (the case study of the sound room of Ali-Qapu Palace)

Abstract

The architecture of the Safavid period is one of the best architectural styles in Iran, both in terms of construction and decorations and innovations. Safavid kings tried to create lasting art for all generations due to their great interest in architecture and urban planning. Among the lasting works of Safavid art, we can mention the Ali Qapu Palace of Isfahan, which is built on six floors. The biggest rooms of the palace are on the last floor of the mansion and Shah Abbas used to receive his special guests in them. On this floor, we reach one of the masterpieces of Iranian architects; the music room or the sound room, the central part of which is designed in the shape of a cross and has an area of about 63 square meters. Introducing the favorite pottery of the Safavid kings, that is, Carafes , thermoses, and jugs, and the most widely used forms of Tongbori, that is, jars. Safavid systems also introduce the most widely used pottery. Probably, some Tongboris were also influenced by metal and glass samples. The vertical surfaces of the walls and the horizontal divisions of Aliqapu have influenced the form of Tongboris. The present research is about this music room. In this research, as the background and basics of the research, after analyzing the acoustic basics, while emphasizing the clarity of speech and reverberation time as measured variables; Then, we have introduced the history , name of Ali Qapu Palace , the Tongs and the shapes and containers of the walls in a descriptive way and with library tools; In the field of his case study and fundamental study, he has used a completely quantitative approach and accurate calculation method with two simulation tools (walls without Tong and roof without muqarans) and field measurement to compare their results. The results of this research consider the role of Tongs and muqarans in reducing sound energy, reducing reverberation time, and improving speech clarity very necessary and necessary.