Covering all the angles: Evaluating simulated coupled system-space behavior for variable curvature line-source designs using direct-to-reverberant ratio

Moore D, Corteel E, Coleman P, Hafstein Pjetursson Ó, Epain N, Basilio P. Covering all the angles: Evaluating simulated coupled system-space behavior for variable curvature line-source designs using direct-to-reverberant ratio. In: AES Show 2026 Nashville. Audio Engineering Society; 2026.pp. 27:1-8. Available from: https://aes.org/publications/elibrary-page/?id=23460

@inproceedings{Moore2026_23460,
  author = {Moore, Dan and Corteel, Etienne and Coleman, Philip and Hafstein Pjetursson, Ólafur and Epain, Nicolas and Basilio, Pedro},
  title = {{Covering all the angles: Evaluating simulated coupled system-space behavior for variable curvature line-source designs using direct-to-reverberant ratio}},
  booktitle = {AES Show 2026 Nashville},
  pages = {27:1-8},
  url = {https://aes.org/publications/elibrary-page/?id=23460},
  year = {2026},
  month = oct,
  publisher = {Audio Engineering Society},
  address = {Gaylord Opryland Resort}
}

TY  - CPAPER
TI  - Covering all the angles: Evaluating simulated coupled system-space behavior for variable curvature line-source designs using direct-to-reverberant ratio
AU  - Moore, Dan
AU  - Corteel, Etienne
AU  - Coleman, Philip
AU  - Hafstein Pjetursson, Ólafur
AU  - Epain, Nicolas
AU  - Basilio, Pedro
T2  - AES Show 2026 Nashville
SP  - 1
EP  - 8
M1  - Paper 27
PY  - 2026
DA  - 2026/10/30
UR  - https://aes.org/publications/elibrary-page/?id=23460
PB  - Audio Engineering Society
CY  - Gaylord Opryland Resort
LA  - en
AB  - The acoustics of a venue can significantly influence the design and performance of a sound reinforcement system. Simulations can be used to assess the influence of the venues acoustics by importing loudspeaker manufacturer data and computing standardized metrics, such as reverberation time and clarity, to validate a design for a given space. While the influence of the room on point-source-like loudspeaker performance is well-known from classical room acoustics theory, there has been less investigation into the influence of room acoustics on variable curvature line source arrays. Sound reinforcement systems employing line-source arrays differ from conventional point sources through their controlled directivity and throw. At high frequencies, array curvature and adjustable waveguides enable tailored coverage and energy distribution, while at low frequencies, array length increases source directivity. The increased directivity of these sources results in them exciting the reverberant field within the space differently, compared to a point source. In this paper, we use simulations to investigate line source design parameters within a given venue. We investigate the relationship between source type and array length and the coupled directreverberant field throughout the space. We demonstrate that direct-to-reverberant ratio provides a useful metric for evaluating loudspeakerroom interaction, complementing conventional free-field response simulations.
ER  -