Synthesis of musical instrument directivities with a single common loudspeaker (L)

Ryoko Hara; Takahiro Iwami; Hiroshi Kashiwazaki; Akira Omoto

doi:10.1121/10.0006660

Synthesis of musical instrument directivities with a single common loudspeaker (L)

J Acoust Soc Am. 2021 Oct;150(4):2549. doi: 10.1121/10.0006660.

Authors

Ryoko Hara¹, Takahiro Iwami¹, Hiroshi Kashiwazaki¹, Akira Omoto²

Affiliations

¹ Graduate School of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan.
² Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan.

PMID: 34717506
DOI: 10.1121/10.0006660

Abstract

This letter synthesizes musical instrument directivities by sequentially rotating a loudspeaker through multiple orientations. The synthesis is conducted in a spherical harmonic domain using the actual measured directivity of a commercial loudspeaker and an open database of musical instrument directivities. The letter further proposes a practically useful set of 26 loudspeaker orientations named Step45, which can be used to reproduce the target directivity as well as if the orientations were determined adopting mathematical methods that give equilibrium configurations.