Noise reduction method capable of realizing self-adaptive adjustment of noise reduction gain, device thereof, and noise reduction earphone

Abstract

The invention discloses a noise reduction method capable of realizing self-adaptive adjustment of noise reduction gain, a device thereof, and a noise reduction earphone. The noise reduction method is characterized in that a voice signal acquired by a microphone disposed on an earphone receiver is received, and is used as a noise signal; a current noise level of external environment is determined according to the current voice intensity of the noise signal; current noise reduction gain value corresponding to the current noise level is set; according to the current noise reduction gain value, the noise reduction treatment of the noise signal is carried out. According to the current noise level of the external environment, the noise reduction gain value corresponding to the current noise level is set, and therefore the noise reduction earphone is capable of realizing the self-adaptive adjustment of the noise reduction gain, and user experience is effectively improved.

Description

technical field [0001] The invention relates to the field of earphone noise reduction, and more specifically, the invention relates to a noise reduction method and device for adaptively adjusting noise reduction gain, and a noise reduction earphone. Background technique [0002] The existing active noise reduction earphones generate anti-phase sound waves equal to the external noise through the noise reduction system, and use the anti-phase sound waves to neutralize the noise in the voice signal heard by the ear, thereby achieving the effect of noise reduction. The principle is : First, the signal microphone placed in the earphone detects the noise in the environment that the ear can hear, and then transmits the noise signal to the control circuit. The control circuit performs real-time calculations, and emits sound waves with the opposite phase and the same amplitude as the noise through the speaker. Block the noise, make the noise disappear. [0003] There are three types...

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Problems solved by technology

[0004] For the first type of active noise reduction headphones, the noise reduction function must be realized manually. For different scenes and different environmental noises, the noise reduction effect is unchanged, and long-term wear will have a strong impact on the eardrum. Feeling oppressive, and the power consumption is always high, which is not conducive to long-term standby and not energy-saving

[0005] For the second type of active noise-cancelling earphones, the noise-cancelling gain has been adjusted, which solves the problems of power consumption and wearing comfort, but it must be adjusted by touching the buttons of the earphones, which is prone to misoperation, and the actual experience effect bad

[0006] For the third type of active noise reduction headphones, the noise reduction gain has also been adjusted, which solves the problems of power consumption and wearing comfort, but you must enter the APP on the mobile phone to adjust the noise reduction effect, and the adjustment itself cannot When you leave your mobile phone, you must install an APP for different mobile phones to realize the adjustable noise reduction function

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