Simulating low frequency noise pollution using the parabolic equations in sound reinforcement loudspeaker systems

Mouterde T, Perrot J, Lihoreau B, Corteel E. Simulating low frequency noise pollution using the parabolic equations in sound reinforcement loudspeaker systems. In: AES Convention 153. Audio Engineering Society; 2022. Paper 10617. Available from: https://aes.org/publications/elibrary-page/?id=21946

@inproceedings{Mouterde2022_21946,
  author = {Mouterde, Thomas and Perrot, Joris and Lihoreau, Bertrand and Corteel, Etienne},
  title = {{Simulating low frequency noise pollution using the parabolic equations in sound reinforcement loudspeaker systems}},
  booktitle = {AES Convention 153},
  note = {Paper 10617},
  year = {2022},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21946}
}

TY  - CPAPER
TI  - Simulating low frequency noise pollution using the parabolic equations in sound reinforcement loudspeaker systems
AU  - Mouterde, Thomas
AU  - Perrot, Joris
AU  - Lihoreau, Bertrand
AU  - Corteel, Etienne
T2  - AES Convention 153
M1  - Paper 10617
PY  - 2022
DA  - 2022/10/06
UR  - https://aes.org/publications/elibrary-page/?id=21946
PB  - Audio Engineering Society
LA  - en
AB  - Sound system designers are used to optimizing loudspeaker systems for the audience experience with free-field simulation software. However, noise pollution reduction must also be considered during the design phase and the propagation of sound may be affected by inhomogeneous atmospheric conditions, such as wind, temperature gradients, and ground impedance. This paper proposes a method to simulate the impact of the environment on sound pressure levels at large distances created by loudspeaker systems using parabolic equations, considering a reference left-right main system associated with either flown or ground-stacked subwoofers. Results show a higher variability of the sound pressure level with systems using ground-stacked subwoofers. The influence of the crossover frequency between main and subwoofers is discussed in this paper.
ER  -