The following thesis describes the principles of wave summation for directional sound sources \cite{McCarthy}. It further explains the physical nature of directional radiation of line-array systems \cite{WST2003} \cite{JBL} and discusses selected methods for controlling or optimizng their directivity.

In particular, it outlines the principles of utilizing special waveguides in the context of WST criteria \cite{WST2003}. It also describes the design procedure for cutoff frequencies of low-pass filters used for frequency shading in column-array systems. In the context of beamsteering—the text details the calculation of the delays required to achieve a defined main lobe deflection and warns of the stricter spatial sampling criteria when radiating off the system's 0° axis.

Furthermore, the thesis includes a description of the required data and the setup of simulation scenarios in the AKABAK software to simulate the previously discussed methods or their components. It focuses on acquiring the frequency-directivity characteristics of a waveguide intended for line-array systems and compares the simulation results against the manufacturer's data. The resulting characteristics showed high similarity to official data, except at the highest investigated frequencies (14–16 kHz), where unexpected artifacts occurred, likely due to an insufficiently detailed  model of said waveguide. Another simulation scenario examines the impact of 1st-order low-pass shading filters with a cutoff frequency that decreases toward the edges of the system. Their effect is evaluated as positive regarding side lobe suppression (6–12 dB reduction), but unsuitable for maintaining a wider coverage angle (the original intent). The text highlights a trade-off: reduced system efficiency at high frequencies and a degraded ratio between main and parasitic lobe levels (by units of dB). The beamsteering simulation scenario confirms the validity of the described transducer delay design and the formula for determining the frequency of near-field radiation onset, while also illustrating the stricter spatial sampling criteria when the main lobe deviates from the reference axis.

The appendices contain all simulation projects and output data projects created for the AKABAK and VACS software. The appendix also includes a detailed document outlining the workflow in the AKABAK environment via a case study simulating a horn and compression driver system. A supplementary study documenting the minor impacts of simulation configuration variations is included, along with the corresponding projects and simulated data.