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The Distributed Edge Dipole (DED) Model for Cabinet Diffraction Effects
AES Journal, Vol. 52, n°10 - 2004 October

ABSTRACT
A simple model is proposed to account for the effects of cabinet edge diffraction on the radiated sound field for direct-radiating loudspeaker components when mounted in an enclosure. The proposed approach is termed the Distributed Edge Dipole (DED) model since it is developed based on the Kirchoff Approximation (KA) using distributed dipoles with their axes perpendicular to the baffle edge as the elementary diffractive sources.

The DED model is first tested against measurements for a thin circular baffle and is then applied to a real world loudspeaker that has a thick, rectangular baffle. The forward sound pressure level and the entire angular domain are investigated and predictions of the DED model show good agreement with experimental measurements.

Wavefront Sculpture Technology, October 2003
AES Journal, Vol. 51, n°10.

ABSTRACT
The Fresnel approach in optics is introduced to the field of acoustics. Fresnel analysis provides an effective, intuitive way of understanding complex interference phenomena and allows for the definition of criteria required to couple discrete sound sources effectively and to achieve coverage of a given audience geometry in sound-reinforcement applications. The derived criteria from the basis of what is termed Wavefront Sculpture Technology.

Wavefront Sculpture Technology"
AES Convention Paper #5488
Article presented at the 111th AES Convention, New York 2001

ABSTRACT
We introduce Fresnel’s ideas in optics to the field of acoustics. Fresnel analysis provides an effective, intuitive approach to the understanding of complex interference phenomena and thus opens the road to establishing the criteria for the effective coupling of sound sources and for the coverage of a given audience geometry in sound reinforcement applications.

The derived criteria form the basis of what is termed Wavefront Sculpture Technology.

Sound Field Radiated By Arrayed Multiple Sound Sources
AES Convention Paper #3269
Article presented at the 92nd AES Convention, Vienna 1992

ABSTRACT
How to know whether it is possible or not to predict the behaviour of an array when the behaviour of each element is known? Our purpose is to describe the sound field produced by arrays in such a way that criteria for “arraybility” can be defined.