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

Abstract

The invention provides a filter parameter configuration method of a noise reduction earphone and an 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; filter parameters of the filter assembly are correspondingly searched according to a set step length in a set parameter range based on the noise reduction amount obtained in real time, and the corresponding filter parameter when the noise reduction amount is maximum is determined as a current configuration parameter of the filter assembly, wherein the filter parameters of the filter assembly are searched, the searching direction of the parameters is consistent with the noise reduction amount increasing direction; and according to the invention, the current configuration parameters are used to configure the filter assembly to perform noise reduction, so that the search efficiency is improved, the in-ear noise is relatively stable and is not sometimes large or small, 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 a noise-cancelling earphone and an active noise-cancelling 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 microphon...

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.

Images