Abstract
Experimental study of acoustically complex environments is a lengthy and troublesome process, in part due to the great deal of effort in acquiring data. A custom Cartesian scanning system has been developed to perform automated room impulse response measurements in scale models. High spatial‐resolution measurements are performed within a planar grid and mapped to observe the spatial distribution of the sound field. Phase relationship across the scanning grid is maintained between measurements using continuous pseudo‐random signals. The efficiency and repeatability of the high spatial‐resolution scanning system is demonstrated in acquiring a large number of room impulse responses over a predefined Cartesian grid, while maintaining a wide bandwidth in accordance with the spatial Nyquist theorem. This paper discusses some preliminary results obtained in an eighth scale model of a coupled‐volume system.
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