Filter and self-adaptive filtering method thereof and computer readable storage medium

An adaptive filtering and filter technology, applied in adaptive networks, instruments, speech analysis, etc., can solve problems such as loss of listening experience, inability to feel the direction of speech, etc., to reduce computational complexity, improve slow convergence speed, Guaranteed Convergence Speed ​​and Steady-State Error Effect

Pending Publication Date: 2021-02-23
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps distinguish between existing filters and new ones without losing their effectiveness or causing errors during operation. It uses an algorithm called Fuzzy Logic (FL) for updating certain coefficients based on specific criteria such as time stamps or space limitations. By doing this, these algorithms help maintain consistency with previous versions while still being able to handle changes caused by factors like temperature fluctuations or other environmental variables. Overall, it provides technical benefits over current methods used alone.

Problems solved by technology

This patented technology describes how complicated filtering techniques can lead to reduced computation efficiency when multiple speakers use one or both of them at once (two-,fourthorsextending). Additionally, it suggests selecting an appropriate microphone based on its characteristics such as delay between speaking sounds and reverberation from other sources like background noise. By doing this, users may hear their own voices better without losing any important spatial cues about where they were talking next.

Method used

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  • Filter and self-adaptive filtering method thereof and computer readable storage medium
  • Filter and self-adaptive filtering method thereof and computer readable storage medium
  • Filter and self-adaptive filtering method thereof and computer readable storage medium

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0020] The terms "first" and "second" in this application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover

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Abstract

The invention discloses a filter and a self-adaptive filtering method thereof and a computer readable storage medium. The self-adaptive filtering method comprises the steps: acquiring an expected signal and an input signal of the filter, and filtering the expected signal and the input signal to obtain an error signal; judging whether the filter converges or not; if the filter does not converge, obtaining at least one first filtering unit of the filter; and performing time domain constraint updating on the filtering parameters of the first filtering unit by utilizing the input signal and the error signal, and performing non-time domain constraint updating on the filtering coefficients of other filtering units of the filter by utilizing the input signal and the error signal. In this way, theoperation complexity of the filter can be reduced on the premise that the convergence rate and the steady-state error of the filter are guaranteed.

Description

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Claims

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Application Information

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Owner ZHEJIANG DAHUA TECH CO LTD
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