A case study investigating the interaction between tuba acoustic radiation patterns and performance spaces

Sanders S, Harrison P. A case study investigating the interaction between tuba acoustic radiation patterns and performance spaces. In: AES Convention 153. Audio Engineering Society; 2022. Paper 41. Available from: https://aes.org/publications/elibrary-page/?id=21924

@inproceedings{Sanders2022_21924,
  author = {Sanders, Silas and Harrison, Peter},
  title = {{A case study investigating the interaction between tuba acoustic radiation patterns and performance spaces}},
  booktitle = {AES Convention 153},
  note = {Paper 41},
  year = {2022},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21924}
}

TY  - CPAPER
TI  - A case study investigating the interaction between tuba acoustic radiation patterns and performance spaces
AU  - Sanders, Silas
AU  - Harrison, Peter
T2  - AES Convention 153
M1  - Paper 41
PY  - 2022
DA  - 2022/10/06
UR  - https://aes.org/publications/elibrary-page/?id=21924
PB  - Audio Engineering Society
LA  - en
AB  - Previous work suggests that instrument directivity patterns can interact in interesting ways with their acoustic environments. This paper describes a case study of the tuba, an instrument that possesses a particularly directional radiation pattern, in the context of a small recital hall. We perform our acoustic simulations using ODEON room acoustics software [1], a CAD model of the recital hall [2], a recorded impulse response function [3], and an empirical tuba directivity pattern from a recently published database [4]. We conduct simulations at listener locations spread throughout the hall for two different performer configurations: one where the tuba player faces directly towards the audience, and one where the tuba bell points directly towards the audience. We show that several objective acoustic parameters – C80 (clarity index), LF80 (lateral fraction) and BR(SPL; bass ratioSPL(dB)) – are substantially affected both by performer orientation and by listener position. Our results show how tuba players need to be particularly sensitive to decisions about performance configurations, as they are likely to influence the listening experience substantially.
ER  -