On the Accuracy of Audience Implementations in Acoustic Computer Modelling

Hammond R, Hill AJ, Mapp P. On the Accuracy of Audience Implementations in Acoustic Computer Modelling. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10073. Available from: https://aes.org/publications/elibrary-page/?id=19799

@inproceedings{Hammond2018_19799,
  author = {Hammond, Ross and Hill, Adam J. and Mapp, Peter},
  title = {{On the Accuracy of Audience Implementations in Acoustic Computer Modelling}},
  booktitle = {AES Convention 145},
  note = {Paper 10073},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19799}
}

TY  - CPAPER
TI  - On the Accuracy of Audience Implementations in Acoustic Computer Modelling
AU  - Hammond, Ross
AU  - Hill, Adam J.
AU  - Mapp, Peter
T2  - AES Convention 145
M1  - Paper 10073
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19799
PB  - Audio Engineering Society
LA  - en
AB  - Performance venue acoustics differ significantly due to audience size, largely from the change in absorption and reflection pathways. Creating acoustic models that accurately mimic these changes is problematic, showing significant variance between audience implementation methods and modelling techniques. Changes in total absorption per person due to audience size and density makes absorption coefficients selection difficult. In this research, FDTD simulations confirm that for densely packed audiences, diffraction leads to a linear correlation between capacity and total absorption at low frequencies, while at high frequencies there is less increase in total absorption per person. The significance of diffraction renders ray-tracing inaccurate for individually modelled audience members and has further implications regarding accuracy of standard audience modelling procedures.
ER  -