Scaled models application for the measurements and adaptation planning in small room acoustic

The continuous advancement of acoustic scale modeling methods clears the way for new applications of reduced-scale models. Small room acoustics is an area where scale models have yet to be fully explored, presenting the potential for studying acoustic treatment methods and testing innovative sound-absorbing and diffusing panels in situ. This presentation highlights recent developments in scaled modeling at AGH University of Krakow, showcasing a new measurement setup designed for small-room acoustic testing at a 1:8 scale. To validate the proposed methods, measurements from the scaled model will be compared with those from a full-size reference room. Additionally, a novel type of electroacoustic source will be introduced, focusing on aspects such as frequency response requirements and sound source directivity. Modifications to analysis methods—such as decay curve analysis, waterfall plots, and STFT for room resonance analysis—will also be discussed. Experimental results will be presented, including studies on first reflection point treatments, reverberation adjustments, room mode reduction with bass traps, and sound field diffuseness using scaled models. 9:05–9:25 Break