Headphone signal processing method, system and headphone

Abstract

The embodiments of the present invention disclose an earphone signal processing method, a system and an earphone. The earphone signal processing method includes: acquiring a signal picked up by a first microphone of the earphone located outside the ear canal near the mouth, a signal picked up by a second microphone of the earphone located outside the ear canal far from the mouth, and a third microphone of the earphone The third microphone is located in the cavity formed by the earphone and the ear canal; the signal picked up by the first microphone and the signal picked up by the second microphone are subjected to double-microphone noise reduction to obtain the first intermediate signal; The signal picked up by the third microphone and the signal picked up by the third microphone are subjected to double-microphone noise reduction to obtain a second intermediate signal; the first intermediate signal and the second intermediate signal are fused to obtain a fused voice signal; and the fused voice signal is output. The solutions of the embodiments of the present invention can improve the call quality of the headset in a high-noise environment.

Description

technical field [0001] The present invention relates to the technical field of earphone noise reduction, in particular to a method and system for processing earphone signals and an earphone. Background technique [0002] The headset usually has a microphone for collecting the voice signal of the user during a call. Since the microphones of existing earphones (especially wireless earphones) are usually set at the position of the earplugs close to the ears and are far away from the user's mouth, the quality of the call voice collected by the microphones is not ideal. Especially in a high-noise environment such as a subway, the voice quality of the headset call is poor due to the extremely loud noise, and it is often difficult to hear the other party's speech. [0003] In order to improve the voice quality of the call, the headset is usually subjected to single-microphone noise reduction or dual-microphone noise reduction. But whether it is single-microphone noise reduction o...

AI Technical Summary

Problems solved by technology

Therefore, compared with the external microphone, the in-ear microphone has a higher signal-to-noise ratio, but the frequency band of the in-ear voice signal is narrower, the high-frequency information is missing, it sounds unnatural, and the sense of hearing is poor.

At the same time, in a high-noise environment, although the SNR of the in-ear microphone is much higher than that of the external microphone, it can still pick up the external environmental noise that leaks into the ear, affecting the sense of hearing.

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