Vision Methods Applied to Measure the Displacement of Loudspeaker Membranes
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T. Durand-Texte, M. Melon, E. Simonetto, S. Durand, and M. Moulet, "Vision Methods Applied to Measure the Displacement of Loudspeaker Membranes," Paper 9929, (2018 May.). doi:
T. Durand-Texte, M. Melon, E. Simonetto, S. Durand, and M. Moulet, "Vision Methods Applied to Measure the Displacement of Loudspeaker Membranes," Paper 9929, (2018 May.). doi:
Abstract: Increased interest has been witnessed over the past decades for techniques measuring the vibration of a loudspeaker membrane. In this proceeding, vision methods have been adapted to measure the displacement of the cones of low-frequency drivers. The movement of the membrane is recorded with industrial or consumer market high-speed cameras with frame rates greater than or equal to 240 fps. The measured displacement shows acceptable to very good agreement with the one measured by a laser vibrometer, depending on the camera model. The displacement of the membrane, coupled to the measured electrical impedance, can be used to retrieve the small signal parameters or some non-linear parameters of the speaker. Finally, the vision methods are used to retrieve the vibration patterns of the membrane.
@article{durand-texte2018vision,
author={durand-texte, thomas and melon, manuel and simonetto, elisabeth and durand, stéphane and moulet, marie-hélène},
journal={journal of the audio engineering society},
title={vision methods applied to measure the displacement of loudspeaker membranes},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},}
@article{durand-texte2018vision,
author={durand-texte, thomas and melon, manuel and simonetto, elisabeth and durand, stéphane and moulet, marie-hélène},
journal={journal of the audio engineering society},
title={vision methods applied to measure the displacement of loudspeaker membranes},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={increased interest has been witnessed over the past decades for techniques measuring the vibration of a loudspeaker membrane. in this proceeding, vision methods have been adapted to measure the displacement of the cones of low-frequency drivers. the movement of the membrane is recorded with industrial or consumer market high-speed cameras with frame rates greater than or equal to 240 fps. the measured displacement shows acceptable to very good agreement with the one measured by a laser vibrometer, depending on the camera model. the displacement of the membrane, coupled to the measured electrical impedance, can be used to retrieve the small signal parameters or some non-linear parameters of the speaker. finally, the vision methods are used to retrieve the vibration patterns of the membrane.},}
TY - paper
TI - Vision Methods Applied to Measure the Displacement of Loudspeaker Membranes
SP -
EP -
AU - Durand-Texte, Thomas
AU - Melon, Manuel
AU - Simonetto, Elisabeth
AU - Durand, Stéphane
AU - Moulet, Marie-Hélène
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018
TY - paper
TI - Vision Methods Applied to Measure the Displacement of Loudspeaker Membranes
SP -
EP -
AU - Durand-Texte, Thomas
AU - Melon, Manuel
AU - Simonetto, Elisabeth
AU - Durand, Stéphane
AU - Moulet, Marie-Hélène
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018
AB - Increased interest has been witnessed over the past decades for techniques measuring the vibration of a loudspeaker membrane. In this proceeding, vision methods have been adapted to measure the displacement of the cones of low-frequency drivers. The movement of the membrane is recorded with industrial or consumer market high-speed cameras with frame rates greater than or equal to 240 fps. The measured displacement shows acceptable to very good agreement with the one measured by a laser vibrometer, depending on the camera model. The displacement of the membrane, coupled to the measured electrical impedance, can be used to retrieve the small signal parameters or some non-linear parameters of the speaker. Finally, the vision methods are used to retrieve the vibration patterns of the membrane.
Increased interest has been witnessed over the past decades for techniques measuring the vibration of a loudspeaker membrane. In this proceeding, vision methods have been adapted to measure the displacement of the cones of low-frequency drivers. The movement of the membrane is recorded with industrial or consumer market high-speed cameras with frame rates greater than or equal to 240 fps. The measured displacement shows acceptable to very good agreement with the one measured by a laser vibrometer, depending on the camera model. The displacement of the membrane, coupled to the measured electrical impedance, can be used to retrieve the small signal parameters or some non-linear parameters of the speaker. Finally, the vision methods are used to retrieve the vibration patterns of the membrane.
Authors:
Durand-Texte, Thomas; Melon, Manuel; Simonetto, Elisabeth; Durand, Stéphane; Moulet, Marie-Hélène
Affiliations:
Le Mans Université, Le Mans, France; Laboratoire Géomatique et Foncier, Le Mans, France; Centre de Transfert de Technologie du Mans, Le Mans, France(See document for exact affiliation information.)
AES Convention:
144 (May 2018)
Paper Number:
9929
Publication Date:
May 14, 2018Import into BibTeX
Subject:
Loudspeakers-Part 2
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=19446