Recent application of coupled-room systems in performing arts spaces has prompted active research on sound fields in these complex geometries. This paper applies a diffusion-equation model to the study of acoustics in coupled-rooms. Acoustical measurements are conducted on a scale-model of two coupled-rooms. Using the diffusion model and the experimental results the current work conducts in-dep...

We demonstrate the dynamics of arrays of transient cavitation bubbles exposed to a sound field in a planar geometry. Single, double, and complex configurations of cavitation bubbles are obtained by shaping a pulsed laser beam with a digital hologram and focusing it into a thin gap of liquid. The liquid is driven with an oscillating pressure field of variable phase and amplitude. We compare the ...

We report on the implementation of a novel surface acoustic wave driven fluid-coupled rotational micromotor. A pair of opposing surface acoustic waves were generated on a Lithium Niobate substrate, geometrically tailored to asymmetrically enter the water fluid coupling layer. This generated high rotational velocities in the fluid coupling layer and subsequently the disc. Rotation of a 5 mm diam...

This poster considers the use of different levels of melodic resolution in acoustically driven music retrieval systems from the viewpoint of search-key lengths. A query-by-humming application was constructed to evaluate the dependencies between the melodic resolution, database size and the search-key length in order to consider the optimal level of melodic resolution in music retrieval applicat...