On the use of a loudspeaker for measuring the viscoelastic properties of sound absorbing materials.

@article{Doutres2008OnTU,
  title={On the use of a loudspeaker for measuring the viscoelastic properties of sound absorbing materials.},
  author={Olivier Doutres and Nicolas Dauchez and Jean Michel Genevaux and Guy Lemarquand},
  journal={The Journal of the Acoustical Society of America},
  year={2008},
  volume={124 6},
  pages={
          EL335-40
        }
}
This paper investigates the feasibility to use an electrodynamic loudspeaker to determine viscoelastic properties of sound-absorbing materials in the audible frequency range. The loudspeaker compresses the porous sample in a cavity, and a measurement of its electrical impedance allows one to determine the mechanical impedance of the sample: no additional sensors are required. Viscoelastic properties of the material are then estimated by inverting a 1D Biot model. The method is applied to two… 
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