Nonlinearity of Ported Loudspeaker Enclosures

Backman J. Nonlinearity of Ported Loudspeaker Enclosures. In: AES Convention 142. Audio Engineering Society; 2017. Paper 9697. Available from: https://aes.org/publications/elibrary-page/?id=18575

@inproceedings{Backman2017_18575,
  author = {Backman, Juha},
  title = {{Nonlinearity of Ported Loudspeaker Enclosures}},
  booktitle = {AES Convention 142},
  note = {Paper 9697},
  year = {2017},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18575}
}

TY  - CPAPER
TI  - Nonlinearity of Ported Loudspeaker Enclosures
AU  - Backman, Juha
T2  - AES Convention 142
M1  - Paper 9697
PY  - 2017
DA  - 2017/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18575
PB  - Audio Engineering Society
LA  - en
AB  - This paper presents the results of a computational fluid dynamics analysis of an unlined ported enclosure, focusing on the behavior around the tuning frequency. The work presents results for the amplitude dependence of the behavior and the time development of the sound field. The results indicate that the vortex formation around the port ends has a significant effect already at a relatively low flow velocities, and that the nonlinearity of the port is clearly visible in the acoustical load seen by the driver at the resonance frequency.
ER  -