Control of Radiation Directivity Applying Independent Element Dodecahedral Loudspeaker
Marko Jelenkovic, Dejan Ciric, Jelena Zdravkovic, Stefan Tomic
Electronic Devices, Vol. 12, No. 2, 2023.
DOI: https://doi.org/10.6025/ed/2023/12/2/37-44
Link: https://www.dline.info/ed/fulltext/v12n2/edv12n2_2.pdf
Abstract:
Control and synthesis of sound source directivity have a significant position in modern acoustics. For this
purpose, special sound sources that consist of independent element loudspeaker array are used. Sound source analyzed in this paper is a loudspeaker array in the form of dodecahedron. To generate different directivities, the loudspeaker array is fed independently with a few characteristic sets of signals. Special setup was established for radiation directivity measurements. For analyzing and presenting the results, a MATLAB application is developed. The measured directivities obtained by feeding of some of the loudspeakers with particular signals show interesting patterns of radiation.