Noise-suppressing earphone

Abstract

The invention relates to a noise-suppressing earphone, which comprises an earphone body, a loudspeaker, a microphone and a signal processor, wherein the earphone body has a chamber and a sound-transmitting tube; the loudspeaker and the microphone are both arranged in the chamber; sound signals are provided by the loudspeaker and outputted by the sound-transmitting tube; the microphone is positioned beside the loudspeaker and receives the sound signals in the chamber; the signal processor is electrically connected with the loudspeaker and the microphone at the same time; the signal processor provides electric signals for the loudspeaker so as to be converted into the sound signals; the microphone converted the received sound signals into the electric signals so as to be transmitted to the signal processor; and aiming at the part of the sound signals which is defined as noise, the signal processor outputs reverse-phase signals added to the loudspeaker.

Description

technical field [0001] The invention relates to a noise-canceling earphone, in particular to an ear canal-type noise-suppressing earphone capable of providing a better output frequency response curve of the earphone. Background technique [0002] At present, the existing known noise suppression earphones are at least provided with a loudspeaker (or loudspeaker) and a microphone, and the external noise sound wave is received by the microphone, and it is converted into a noise signal and sent to a noise suppression circuit. The noise suppression circuit generates an anti-phase signal corresponding to the noise signal to output to the speaker, and enables the speaker to generate an anti-phase sound wave that is anti-phase to the noise sound wave as interference, thereby achieving the effect of noise suppression. [0003] see Figure 1A As shown in FIG. 1 , it is a schematic cross-sectional view of an existing known ear canal noise-canceling earphone. The ear canal noise suppre...

AI Technical Summary

Problems solved by technology

[0005] This shows that the above-mentioned existing noise-canceling earphone obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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