title: Directive sources in acoustic discrete-time domain simulations based on directivity diagrams.
abstract: Discrete-time domain methods provide a simple and flexible way to solve initial boundary value problems. With regard to the sources in such methods, only monopoles or dipoles can be considered. However, in many problems such as room acoustics, the radiation of realistic sources is directional-dependent and their directivity patterns have a clear influence on the total sound field. In this letter, a method to synthesize the directivity of sources is proposed, especially in cases where the knowledge is only based on discrete values of the directivity diagram. Some examples have been carried out in order to show the behavior and accuracy of the proposed method.
authors.affiliation: Audio and Communication Research Group, iTEAM, Technical University of Valencia, E-46021 Valencia, Spain.
authors.forename: José
authors.initials: J
authors.lastname: Escolano
authors.forename: José J
authors.initials: JJ
authors.lastname: López
authors.forename: Basilio
authors.initials: B
authors.lastname: Pueo
mesh_terms: D003198:Computer Simulation; D006801:Humans; D008433:Mathematics; D008962:Models, Theoretical; D013017:Sound Localization