Acoustic structure for improving high-frequency resolution of in-ear headphone

Abstract

The invention discloses an acoustic structure for improving high-frequency resolution of an in-ear headphone. The acoustic structure comprises a headphone front cover, wherein a sound transmission hole and a sunk slot communicated with each other are formed in two ends of the headphone front cover respectively; a moving coil type receiver unit is assembled in the sunk slot; a resonant cavity structure for improving the high-frequency resolution of the in-ear headphone is formed between the moving coil type receiver unit and the bottom of the sunk slot. The acoustic structure is applied to the in-ear headphone, and the high-frequency resolution capacity of the in-ear headphone is improved, so that signals can be easily replayed without distortion at a high-frequency end.

Description

【Technical field】 [0001] The invention relates to an acoustic mechanism, more specifically an acoustic structure applied to an earphone. 【Background technique】 [0002] At present, most of the in-ear earphones on the market have dynamic receiver units. Although the in-ear earphones with dynamic receivers have excellent low-frequency analysis performance, stable signals, and are not easy to be distorted, their high-frequency resolution capabilities are weak. An ear canal resonance peak is often formed near the bandwidth of 7kHz-9kHz. On the one hand, the high-frequency band has low sensitivity on the one hand, and on the other hand, due to the masking effect, the high-frequency signal of the in-ear headphones with dynamic receivers is often missing. , poor resolution at high frequencies. The in-ear earphone of the moving iron receiver has the characteristics of excellent high frequency, but the unit frequency response of the in-ear earphone of the moving iron receiver is nar...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the in-ear earphones on the market have dynamic receiver units. Although the in-ear earphones with dynamic receivers have excellent low-frequency analysis performance, stable signals, and are not easy to be distorted, their high-frequency resolution capabilities are weak. An ear canal resonance peak is often formed near the bandwidth of 7kHz-9kHz. On the one hand, the high-frequency band has low sensitivity on the one hand, and on the other hand, due to the masking effect, the high-frequency signal of the in-ear headphones with dynamic receivers is often missing. , poor resolution at high frequencies

The in-ear earphone of the moving iron receiver has the characteristics of excellent high frequency, but the unit frequency response of the in-ear earphone of the moving iron receiver is narrow, the output power is limited, the shock plate is rigid, and the signal distortion is serious when the swing is too large , and high cost

In the prior art, headphone manufacturers usually use two-frequency or multi-frequency technology of moving coil and moving iron to improve the sound quality of in-ear headphones, but the structure of this kind of moving coil and moving iron is complicated. quite expensive

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