Filtering method for echo cancellation and device thereof, equipment and medium

Abstract

The invention discloses a filtering method for echo cancellation and a device thereof, equipment and a medium. The method is performed in multiple rounds. The method includes: acquiring a far-end audio data and a near-end audio data of the current round, and performing time-domain segmentation on the far-end audio data of the current round to obtain multiple far-end time-domain audio blocks of thecurrent round; according to an adaptive echo cancellation parameter of the current round, estimating the respective response to the plurality of far-end time-domain audio blocks of the current round;determining the filtering result of the near-end audio data for the current round according to the near-end audio data of the current round and the respective response; wherein, the adaptive echo cancellation parameter of the current round is obtained according to at least one round of the adaptive echo cancellation parameter and energy update of the far-end audio data. The method actively blocksthe far-end audio data, and adaptively filters the near-end audio data according to the present invention, which can effectively eliminate the echo generated when the far-end and near-end two or moreparties perform voice communication, and is helpful for guaranteeing the voice communication quality.

Description

technical field [0001] The present application relates to the technical field of voice communication, and in particular to a filtering method, device, device, and medium for echo cancellation. Background technique [0002] Voice communication is a relatively common interaction scenario between users, for example, two users talk through a mobile phone, and multiple users conduct a remote conference through a teleconferencing terminal. In this type of voice communication scenario, for any user at one end, it is often necessary to both send voice to the other end and answer the voice from the other end to itself. The local end of any user can be called the near end. The opposite end can be called the remote end. [0003] The user generally uses the microphone provided by the mobile phone or the teleconferencing terminal to send voice to the other end, and through the earpiece or speaker provided by these devices, the user listens to the voice sent by the other end. However, w...

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Problems solved by technology

[0006] Embodiments of the present application provide a filtering method, device, device, and medium for echo cancellation, which are used to solve the following technical problems in the prior art: distortion of microphones, earpieces, or speakers, and room confusion often lead to the failure of existing solutions. Poor echo cancellation

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