title: Generation and analysis of an acoustic radiation pattern database for forty-one musical instruments.
abstract: A database of acoustic radiation patterns was recorded, modeled, and analyzed for 41 modern or authentic orchestral musical instruments. The generation of this database included recordings of each instrument over the entire chromatic tone range in an anechoic chamber using a surrounding spherical microphone array. Acoustic source centering was applied in order to align the acoustic center of the sound source to the physical center of the microphone array. The acoustic radiation pattern is generated in the spherical harmonics domain at each harmonic partial of each played tone. An analysis of the acoustic radiation pattern complexity has been performed in terms of the number of excitation points using the centering algorithm. The database can be used both for studying the radiation of musical instruments itself, as well as for the implementation of radiation patterns in room acoustical simulations and auralization in order to obtain a spatial excitation of the room closer to reality.
authors.affiliation: Institute of Technical Acoustics, RWTH Aachen University, Kopernikusstr. 5, 52074 Aachen, Germany.
authors.forename: Noam R
authors.initials: NR
authors.lastname: Shabtai
authors.affiliation: Institute of Technical Acoustics, RWTH Aachen University, Kopernikusstr. 5, 52074 Aachen, Germany.
authors.forename: Gottfried
authors.initials: G
authors.lastname: Behler
authors.affiliation: Institute of Technical Acoustics, RWTH Aachen University, Kopernikusstr. 5, 52074 Aachen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Vorländer
authors.affiliation: Audio Communication Group, Technical University Berlin, Einsteinufer 17, 10587 Berlin, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Weinzierl