Jump Resonance in Audio Transducers

Jabbari A, Unruh A. Jump Resonance in Audio Transducers. In: AES Convention 117. Audio Engineering Society; 2004. Paper 6247. Available from: https://aes.org/publications/elibrary-page/?id=12904

@inproceedings{Jabbari2004_12904,
  author = {Jabbari, Ali and Unruh, Andy},
  title = {{Jump Resonance in Audio Transducers}},
  booktitle = {AES Convention 117},
  note = {Paper 6247},
  year = {2004},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12904}
}

TY  - CPAPER
TI  - Jump Resonance in Audio Transducers
AU  - Jabbari, Ali
AU  - Unruh, Andy
T2  - AES Convention 117
M1  - Paper 6247
PY  - 2004
DA  - 2004/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12904
PB  - Audio Engineering Society
LA  - en
AB  - The resonance behavior of a driver with low damping is studied. In such a system, the existing nonlinearities can result in jump resonance, a bifurcation phenomenon with two regimes. One regime, accompanied by a sudden decrease in amplitude, is evident when the frequency of excitation is increasing. The other regime, exhibiting a sudden increase in amplitude, is present when the frequency of excitation is decreasing. Jump resonance was experimentally observed in an audio transducer with low damping and subsequently confirmed by analysis and simulation using a detailed dynamic model that includes the most significant sources of nonlinearities. The conclusion of this work is that the primary cause of jump resonance in audio transducers is the nonlinearity in the driver compliance. The importance of this phenomenon increases as the use of current amplifiers becomes more widespread, since the resulting low system damping makes jump resonance more likely.
ER  -