1. A method for utilizing adaptive rectangular decomposition (ARD) to generate a head-related transfer function (HRTF), the method comprising: obtaining a mesh model representative of head and ear geometry of a listener entity; segmenting a simulation domain of the mesh model into a plurality of partitions; conducting an ARD simulation on the plurality of partitions to generate simulated sound pressure signals within each of the plurality of partitions; and processing the simulated sound pressure signals to generate at least one HRTF that is customized for the listener entity.