Characterization of Nonlinear Port Parameters in Loudspeaker Modeling

Button D, Lambert R, Brunet P, Bunning J. Characterization of Nonlinear Port Parameters in Loudspeaker Modeling. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10062. Available from: https://aes.org/publications/elibrary-page/?id=19788

@inproceedings{Button2018_19788,
  author = {Button, Doug and Lambert, Russ and Brunet, Pascal and Bunning, James},
  title = {{Characterization of Nonlinear Port Parameters in Loudspeaker Modeling}},
  booktitle = {AES Convention 145},
  note = {Paper 10062},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19788}
}

TY  - CPAPER
TI  - Characterization of Nonlinear Port Parameters in Loudspeaker Modeling
AU  - Button, Doug
AU  - Lambert, Russ
AU  - Brunet, Pascal
AU  - Bunning, James
T2  - AES Convention 145
M1  - Paper 10062
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19788
PB  - Audio Engineering Society
LA  - en
AB  - The outputs from ports used in common vented box loudspeakers are not linear with input level. With the goal of developing accurate modeling of vented boxes, a new method for estimation of nonlinear port parameters is shown. Acoustic mass and acoustic resistance parameters change with pressure in the enclosure and velocity in the port. Along with all nonlinear speaker parameters required for modeling, a practical way to characterize the changing acoustic mass and acoustic resistance is presented and tested with measurements. Using the new method, nonlinear port parameters are extracted for multiple box and port types.
ER  -