The acoustic environment created by low frequencies in small rooms is of great importance both in terms of listening and performance conditions. In such rooms, analysis of low frequency sound fields may require the wave-based finite element method due to the complexity of wave behavior at the design stage. However, there are very few studies that focus on the implementation of this method. According to the Schroeder theory, in rooms considered as small rooms, the sound fields formed by low frequencies are examined with mode analyzes, frequency response and signal response analyzes made in accordance with wave behavior theory. The mode distribution, frequency response and signal response data obtained using the COMSOL simulation program have made it possible to evaluate the low frequency sound field created by the wave propagation of the sound. For the validation of results, room acoustics measurements were made in accordance with BS EN ISO 3382-1 in the evaluated room and compared with simulation results. This study presents and discusses the prediction of objective parameters through wave-based finite element method with a special emphasis on its implementation for small music room assessment. The comparison of the measurement and simulation results showed that the method can be successfully applied for the assessment and design applications through modal analysis, frequency domain and transient response analysis.
Anahtar Kelimeler: Small music room, Acoustic design, Wave-based finite element method, Acoustic measurements
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