High-efficiency noise canceling earphone and noise canceling system with low power consumption

Abstract

The invention provides a high-efficiency noise canceling earphone with low power consumption, wherein the earphone comprises an earphone housing that contains a playing speaker, the playing speaker isconnected with a signal processing chip; the earphone further comprises an ear canal microphone disposed at the front end of the earphone housing to enable the ear canal microphone to extend into theear canal of the wearer; the earphone further includes a call microphone, the ear canal microphone collects a low frequency voice signal for voice activity detection to determine whether someone is speaking so as to instruct the uplink call path to perform noise estimation on the signal collected by the call microphone, thereby performing noise suppression on the voice signal of the call microphone. By providing an ear canal microphone at the front end of the earphone, the invention detects the voice activity by extending into the ear canal of the wearer, and assists the earphone to perform noise reduction, thereby reducing the power consumption of the earphone, improving the detection accuracy, and realizing efficient noise reduction of the earphone.

Description

technical field [0001] The invention relates to the technical field of sound signal processing, in particular to an efficient noise reduction earphone and a noise reduction system with low power consumption. Background technique [0002] With the progress of society and the improvement of people's living standards, earphones have become an indispensable daily necessities in people's lives. People often answer and make calls on the street, bus, and subway. The noise in this environment will be picked up by the microphone of the headset, mixed with what we say, and sent upstream to the earpiece of the other party's phone, affecting The voice quality of the other party answering the call, so the uplink noise reduction technology is very necessary. In addition, the wireless smart headset with built-in voice assistant can help users check the weather, answer calls, broadcast the weather, monitor heart rate, etc. The intelligent music recommendation system based on deep learning ...

AI Technical Summary

Problems solved by technology

In addition, the wireless smart headset with built-in voice assistant can help users check the weather, answer calls, broadcast the weather, monitor heart rate, etc. The intelligent music recommendation system based on deep learning will also be based on your listening habits, real-time heart rate, and activity scenes. Etc., accurate and diverse music recommendation, earphones with this function have been recognized by more and more users, but such earphones generally consume a lot of power and have short standby time

[0003] There are two existing call headsets, one is based on a single-mic noise-canceling headset, and the uplink call only has a single-mic noise-canceling function, and the noise-canceling ability is limited. When making calls in shopping malls, subways, etc., the uplink call quality is poor

The other is a dual-mic noise-canceling headset based on beamforming, which is better than a single-mic noise reduction, but it can only suppress interference signals in non-main directions, and if the user's wearing posture is incorrect, the caller's voice will also be affected. loss

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