Time Varying Behavior of the Loudspeaker Suspension: Displacement Level Dependency

Agerkvist F, Pedersen BR. Time Varying Behavior of the Loudspeaker Suspension: Displacement Level Dependency. In: AES Convention 127. Audio Engineering Society; 2009. Paper 7902. Available from: https://aes.org/publications/elibrary-page/?id=15097

@inproceedings{Agerkvist2009_15097,
  author = {Agerkvist, Finn and Pedersen, Bo Rohde},
  title = {{Time Varying Behavior of the Loudspeaker Suspension: Displacement Level Dependency}},
  booktitle = {AES Convention 127},
  note = {Paper 7902},
  year = {2009},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15097}
}

TY  - CPAPER
TI  - Time Varying Behavior of the Loudspeaker Suspension: Displacement Level Dependency
AU  - Agerkvist, Finn
AU  - Pedersen, Bo Rohde
T2  - AES Convention 127
M1  - Paper 7902
PY  - 2009
DA  - 2009/10/06
UR  - https://aes.org/publications/elibrary-page/?id=15097
PB  - Audio Engineering Society
LA  - en
AB  - The compliance of the loudspeaker suspension is known to depend on the recent excitation level history. Previous investigations have shown that the electrical power as well as displacement and velocity plays a role. In this paper the hypothesis that the changes in compliance are caused mainly by how much the suspension has been stretched, i.e. the maximum displacement, is investigated. For this purpose the changes in compliance are measured when exposing the speaker to different levels and types of electrical excitation signals, as well as mechanical excitation only. For sinusoidal excitation the change in compliance is shown to depend primarily on maximum displacement, but for square pulse excitation the duration of the excitation also plays an important role.
ER  -