Quasi wave field synthesis : Efficient driving functions for improved 2.5D sound field reproduction

Optimised driving functions for a rectangular array of loudspeakers are approximated with driving functions with similar form and cost to Wave Field Synthesis (WFS) functions, by using a linear combination of several pre-filters and a delay for each function. The accuracy of the resulting reproductions are compared with WFS reproductions. The aim is provide improved efficient source driving functions in horizontal reproduction.