Date

2022-5-10

Author

Cangür Ateş, Vicdan

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The main focuses of the study are (i) to define the as-is acoustical features of the Surp Yerrortutyun Church and its current acoustical problems by means of field measurements and acoustical simulation analyses, and (ii) to assess acoustic performances of some scenario-based proposals for the specific musical- and speech-related activities which are the real demands of local authorities. The investigation is composed of acoustic field measurements held in the monument and the acoustic simulation analyses of the monument’s computer model, which is calibrated according to the data achieved by field measurements. The acoustic parameters of Reverberation Time (T20, s), Early Decay Time (EDT, s), Clarity (C80, dB), and Speech Transmission Index (STI, unitless) were used for the evaluations of field and simulation data. The field measurements exhibit the existing acoustic environment of the Surp Yerrortutyun Church, which underwent many repairs. All proposals integrate sound absorptive surfaces, made of transparent fabrics (curtains), into the Church space, attached or hung free by mountable-demountable (temporary) encircling systems. The results show that the Surp Yerrortutyun Church in existing conditions suffer from excessive longer reverberation times and low clarity levels. The blurred sound environment and poor speech intelligibility in the Church point out the need for acoustic improvement. When compared to the recommended values in the literature, all acoustical rehabilitation proposals enhance the Church’s acoustic environment at medium and high frequencies, specifically for music-related activities. The outcomes of the research conducted on this church museum are expected to be guiding for the identification and rehabilitation of acoustic problems of similar monuments as well as for the development of innovative and portable acoustic control assemblies, which can be temporarily used in monuments.

Subject Keywords

Church-museum, Sivrihisar Surp Yerrortutyun Church (Sivrihisar Armenian Church), field acoustical measurements, acoustical simulation analyses, acoustic rehabilitation proposals

URI

https://hdl.handle.net/11511/97368

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Graduate School of Natural and Applied Sciences, Thesis