Multiphysics Analysis of Induced Acoustic Noise in an Earbud Speaker
2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)(2022)
摘要
Speakers can be sensitive to nearby electronics. Electrical traces carrying high frequency electrical currents can induce electromagnetic current in the voice coil of a speaker. The induced current can cause vibration of the voice coil thereby resulting in audible acoustic noise. This paper provides a Multiphysics simulation workflow to compute the force on voice coil due to the induced electromagnetic field from an aggressor coil placed in the vicinity of the earbud module.
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关键词
loudspeakers,voice coil,Multiphysics,acoustics,electromagnetic induction,electromagnetic force
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