Akademik Veri Yönetim Sistemi
10th Convention of the European Acoustics Association, EAA 2023, Torino, İtalya, 11 - 15 Eylül 2023, (Tam Metin Bildiri)
Acoustical simulation techniques are commonly used for analyzing indoor acoustic characteristics of historic structures, when in-situ measurements are found impractical. Simulations are also beneficial for rendering the acoustical effects of restoration works and to compare them to the authentic conditions. On the other hand, authenticity of simulations requires accurate acoustical characterization of the historical materials. Reverberation chamber measurements are one of the current techniques used to determine sound absorption coefficients of any type of building material. Nevertheless, such method requires large specimens, which are often difficult to acquire from historical sites. In this study, impedance tube measurements are utilized to measure samples of various sizes that are collected from the vicinity of investigated sites and to characterize systems which are reproduced from original documents. Measurements conducted on the tuff stone utilized in a Middle Byzantine Masonry Church in Cappadocia exhibit high sound absorption performance at mid-high frequencies. The stone sample from a 19th century building in İstanbul, Rami Barracks, exhibit relatively lower absorptive characteristics in comparison to tuff stone. Measurements of a cavity resonator found in the dome of Süleymaniye Mosque -a 16th century landmark inherited from Ottoman Empire-, exhibited a sound absorption peak at the vicinity of 500 Hz.