An active noise reduction earphone and noise reduction method thereof

Abstract

The invention discloses an active noise reduction earphone and a noise reduction method thereof. The active noise reduction earphone comprises a telescopic wearing housing and an earphone head. Each earphone head comprises a drum-shaped shell and an earplug cotton ring arranged on the inner side surface of the drum-shaped shell; the earplug cotton rings are provided with opening sections used forwearing glasses, a densification deformation mechanism used for adjusting the tightness and the height of the glasses during wearing is arranged at the position, right opposite to the opening sections, of the drum-shaped shell, and the densification deformation mechanism achieves noise reduction by improving the sealing performance of the glasses during wearing. The wrapping degree of the openingsections of the earplug cotton rings is adjusted through the densification deformation mechanism according to the tightness degree of the glasses, so that the glasses cannot slide off from the openingsections of the earplug cotton rings, and the sealing performance of the earplug cotton rings when the glasses are worn is improved, so that the noise reduction efficiency is improved, the extrusionforce of the existing noise reduction earphone on the temples of the head is reduced, so that the pain feeling is reduced, and the use experience is improved.

Description

technical field [0001] The invention relates to the technical field of noise reduction earphones, in particular to an active noise reduction earphone and a noise reduction method thereof. Background technique [0002] The active noise reduction function is to generate a reverse sound wave equal to the external noise through the noise reduction system to neutralize the noise, thereby achieving the effect of noise reduction. Passive noise-cancelling headphones mainly block external noise by surrounding the ears to form a closed space, or using sound-insulating materials such as silicone earplugs. [0003] In order to improve the noise reduction ability of active noise-cancelling headphones, the existing active noise-cancelling headphones have noise reduction circuits to compete with external noise. The structure blocks external noise, that is, the first round of sound insulation is performed using the passive noise reduction mode, and at the same time, in order to have suffic...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an active noise reduction earphone and its noise reduction method to solve the problem that the earplugs in the prior art squeeze the temples of the glasses, and after wearing them for a long time, the position corresponding to the temples of the glasses will feel pain and cause discomfort technical problem

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