headphone device

Abstract

Headphones include speakers. The rear volume of the loudspeaker is coupled to the mixing volume, the front volume of the loudspeaker is coupled to the mixing volume, and the mixing volume is coupled to the outside. The acoustic impedance caused by the rear volume, the front volume, the mixing volume and the passages between them can be adjusted to the desired sound leakage characteristics in advance. Acoustic damping material may be included in each leakage path to achieve desired characteristics, depending on the type of speaker to be used, the acoustic design of the earphone, the mechanical properties of the earphone body, and the desired frequency response characteristics of the earphone.

Description

technical field [0001] The present invention relates to an earphone device, for example of the type wearable on or in the user's ear. Thus, the present invention relates to any ear-worn device with a loudspeaker. Background technique [0002] GB-2445388A discloses an earphone device having a pad that can be placed on the user's ear, and wherein the front surface of the speaker is opened to the outside through a front leak path, and the rear surface of the speaker is opened to the outside through a rear leak path. to the outside. [0003] In such an arrangement, the existence of a leakage path means that the poor frequency response associated with closed earphones can be avoided. However, there is a potential downside that the sound produced by the speakers can be heard outside the earphones. GB-2445388A discloses a system in which the front leak path and the rear leak path have adjacent output ports so that there is a degree of acoustic cancellation between the sound tran...

AI Technical Summary

Problems solved by technology

However, there is a potential disadvantage that the sound produced by the speakers can be heard outside the earphones

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