On the Air Absorption Effects in a Finite Difference Implementation of the Acoustic Diffusion Equation Model

Navarro JM, Escolano J, López JJ. On the Air Absorption Effects in a Finite Difference Implementation of the Acoustic Diffusion Equation Model. In: AES Convention 128. Audio Engineering Society; 2010. Paper 8021. Available from: https://aes.org/publications/elibrary-page/?id=15318

@inproceedings{Navarro2010_15318,
  author = {Navarro, Juan M. and Escolano, José and López, José J.},
  title = {{On the Air Absorption Effects in a Finite Difference Implementation of the Acoustic Diffusion Equation Model}},
  booktitle = {AES Convention 128},
  note = {Paper 8021},
  year = {2010},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15318}
}

TY  - CPAPER
TI  - On the Air Absorption Effects in a Finite Difference Implementation of the Acoustic Diffusion Equation Model
AU  - Navarro, Juan M.
AU  - Escolano, José
AU  - López, José J.
T2  - AES Convention 128
M1  - Paper 8021
PY  - 2010
DA  - 2010/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15318
PB  - Audio Engineering Society
LA  - en
AB  - In room-acoustics modeling, the sound atmospheric attenuation is a critical phenomenon that have to be taken into account to obtain correct predictions, especially when high frequencies and large enclosures are simulated. A finite difference scheme implementation of the diffusion equation model with a mixed boundary condition is evaluated, including the air absorption within the room. This paper focus on investigate the performance of this implementation for room-acoustics simulation. In particular, the stability condition is developed to compare the features of the solution both with and without the air absorption term. Moreover, the correct behavior of the numerical implementation has been studied comparing predicted results using different surfaces and air absorption coefficients.
ER  -