Wavefield Synthesis: Evolution from Stereophony and Some Practical Challenges
[feature] Wavefield synthesis (WFS) is essentially a means by which a soundfield can be reconstructed within a listening area using an array of loudspeakers, enabling faithful spatial reproduction. It represents an important but potentially complex advance over conventional loudspeaker stereophony, the topic having been presented and discussed at AES events for many years now. During this time the primary development team, based at the Technical University of Delft in the Netherlands, was working on the theoretical principles and proving the concept of WFS. In recent years the technology has experienced wider interest, and WFS is a key element of a recently completed European research project entitled CARROUSO. In this article we review concepts from a selection of recent AES papers arising from this work, showing how WFS ideas might be integrated into parts of an audio production chain, incorporating elements of object representation, conventional stereophony, and room compensation.
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