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Beor_TheOld t1_iyco6tg wrote

Reply to comment by SupOrSalad in Headphone wizardry by SupOrSalad

The transducer only has one degree of freedom, but the diaphragm has infinitely many 3D (axial, radial, displacement) vibrational modes, arguably 4D since different input frequencies generate different vibrational modes. There are some really pretty gifs at the end of this article https://en.wikipedia.org/wiki/Vibrations_of_a_circular_membrane

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WikiSummarizerBot t1_iyco8kz wrote

Vibrations of a circular membrane

>A two-dimensional elastic membrane under tension can support transverse vibrations. The properties of an idealized drumhead can be modeled by the vibrations of a circular membrane of uniform thickness, attached to a rigid frame. Due to the phenomenon of resonance, at certain vibration frequencies, its resonant frequencies, the membrane can store vibrational energy, the surface moving in a characteristic pattern of standing waves. This is called a normal mode.

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