Vibration components with mass element and elastic element

A sound transmission device, comprising:

• a housing, the housing forming an acoustic cavity;
• a vibration component, the vibration component separating the acoustic cavity into a first acoustic cavity and a second acoustic cavity, and the vibration component vibrating relative to the housing so that a volume of the first acoustic cavity and a volume of the second acoustic cavity change;
• and
• an acoustoelectric transducer, the acoustoelectric transducer being in acoustic communication with the first acoustic cavity or the second acoustic cavity, and the acoustoelectric transducer generating an electrical signal in response to a change of the volume of the first acoustic cavity or a change of the volume of the second acoustic cavity, wherein
• the vibration component includes a mass element, an elastic element, and a supporting element configured to support the elastic element;
• the supporting element encircles the elastic element and is mechanically connected to the elastic element;
• the elastic element includes a connection region and a first preprocessing region;
• the connection region is configured to support the mass element;
• and
• a deformation quantity of the first preprocessing region is greater than a deformation quantity of a region of the elastic element other than the first preprocessing region when the mass element vibrates;
• the supporting element includes a clamping portion and a deformation portion;
• the elastic element is clamped between the clamping portion and the deformation portion;
• and
• in response to a vibration signal of the mass element along a vibration direction, the deformation portion vibrates and deforms along the vibration direction to provide a third displacement for the mass element along the vibration direction.