earphone

Abstract

An earphone has a housing with a signal process unit to output sound. The housing has a chamber and a speaker mounted inside the chamber. The chamber is defined as a front volume and a rear volume bythe speaker, and the rear volume having a port. Wherein the speaker in the volume outputting a chamber frequency response curve is at least a portion higher than the earphone's ideal frequency response curve at the bandwidth ranging from 20 Hz to 1000 Hz, where creates a gain difference between the chamber frequency response curve and the ideal frequency response curve to be decreased the (superfluous) positive value by a signal process unit at the bandwidth ranging from 20 Hz to 1000 Hz. Therefore, the total acoustic energy is maintained, the earphone acoustic quality is preserved, and the earphone volume may output even higher power to be deduced by the signal process unit for lowering down the circuit power consumption.

Description

technical field [0001] The invention relates to electroacoustic conversion technology, in particular to an earphone with good sound output quality and low output power. Background technique [0002] In order to meet the needs of consumers to listen to music, the earphones will set a target frequency response curve, and try to meet the aforementioned target frequency response curve when designing the earphone cavity, so as to achieve good sound output quality. In addition, another challenge in earphone design is to provide a long enough usage time. However, in the case of earphone size and battery capacity are quite limited, manufacturers can only try to improve the efficiency of the monomer or try to reduce the power consumption of the circuit. . The current common practice is to only process the input electronic signal, but this will sacrifice the quality of the sound output by the earphone, and the effect of reducing power consumption is still limited, so it still needs t...

AI Technical Summary

Problems solved by technology

In addition, another challenge in earphone design is to provide a long enough usage time. However, in the case of earphone size and battery capacity are quite limited, manufacturers can only try to improve the efficiency of the monomer or try to reduce the power consumption of the circuit.

The current common practice is to only process the input electronic signal, but this will sacrifice the quality of the sound output by the earphones, and the effect of reducing power consumption is still limited, so it still needs to be improved

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