Filter parameter configuration method of active noise reduction earphone and active noise reduction earphone

Abstract

The embodiment of the invention provides a filter parameter configuration method of an active noise reduction earphone and the active noise reduction earphone. The method comprises the steps that a configuration instruction is received, and the configuration instruction is used for indicating the noise reduction earphone to start noise reduction configuration; according to the configuration instruction, the noise reduction amount of the noise reduction earphone is calculated in real time, and the noise reduction amount is the ratio of the audio signals collected by the extraaural microphone to the audio signals collected by the intra-aural microphone; based on the noise reduction amount obtained in real time, the gain of the filter assembly is correspondingly searched in a set gain range according to a set step length, the gain corresponding to the maximum noise reduction amount is determined as the current configuration gain of the filter assembly, and when the gain of the filter assembly is searched, the searching direction of the gain is consistent with the increasing direction of the noise reduction amount; the current configuration gain is used to configure the filter component to perform noise reduction, so that the search efficiency is improved, the in-ear noise is relatively stable and is not large or small at any time, and the user experience in the filter parameter configuration process is enhanced.

Description

technical field [0001] The invention relates to a wireless earphone, in particular to a filter parameter configuration method of an active noise reduction earphone and the active noise reduction earphone. Background technique [0002] At present, active noise reduction headphones have gradually entered people's lives, allowing people to get a relatively quiet environment in a noisy environment. The principle of active noise-cancelling headphones is to actively emit sound waves with opposite phases to cancel the sound waves (feedforward) or to add a feedback acoustic path (feedback) to the sound path to reduce the noise heard by the ear. However, different noise conditions, different earphone wearing styles, and different ear canal structures will all affect the noise suppression function of the existing earphones, and also bring users an unsatisfactory use experience. [0003] First of all, there are inconsistencies in the sensitivity, phase, etc. of the noise-cancelling mi...

AI Technical Summary

Problems solved by technology

Before assembling the earphones into the whole machine, test and configure the active noise reduction parameters, which are different from the parameters obtained in the whole machine, which will affect the noise reduction performance of the whole earphones

[0004] Secondly, the noise reduction effect of headphones is greatly affected by different wearing methods and different ear canal structures.

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