Some more wood for the fire:
Analysis and Synthesis of Sound-Radiation with Spherical Arrays
Franz Zotter
This work demonstrates a comprehensive methodology for capture, analysis, manipulation, and reproduction of spatial sound-radiation.
As the challenge herein, acoustic events need to be captured and reproduced not only in one but in a preferably complete multiplicity of directions, instead.
The solutions presented in this work are using the soap-bubble model, a working hypothesis about sound-radiation, and are based on fundamental mathematical descriptions of spherical acoustic holography and holophony.
These descriptions enable a clear methodic approach of sound-radiation capture and reproduction.
In particular, this work illustrates the implementation of surrounding spherical microphone arrays for the capture of sound-radiation, as well as the analysis of sound-radiation with a functional model.
Most essential, the thesis shows how to obtain holophonic reproduction of sound-radiation.
For this purpose, a physical model of compact spherical loudspeaker arrays is established alongside with its electronic control.
https://iem.kug.ac.at/en/projects/w...of-sound-radiation-with-spherical-arrays.html
https://iaem.at/projekte/sphericalarrays/compact-spherical-loudspeaker-arrays
