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Abstract

An earphone structure which allows adjusting ventilation of a chamber inside is provided. A plurality of holes is formed on a main body of the earphone structure and ventilation materials are disposed on the ventilation holes as a ventilation medium between the chamber in the main body and an external environment. A sound field generated in the chamber is changed through the change of the materials, which makes the sound field close to the natural tone. The adjustment of the ventilation is mainly based on the fact that sound has different frequency response effects on different materials in the transmission environment, thus achieving the effect of changing the sound field. For example, the adjustment of the ventilation can be achieved by filling different materials in the chamber. Further, partition part of the chamber can also use the frequency response of the sound of materials with different hardness.

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First Claim