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Echo cancellation method and device and storage medium

A technology for echo cancellation and sound signal, which is applied in the field of echo cancellation method, device and storage medium, can solve problems such as poor effect of echo cancellation, high amount of calculation, impact on call quality, etc., and achieve the goals of shortening duration, improving efficiency and improving effect Effect

Inactive Publication Date: 2019-12-24
SOUNDAI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The echo cancellation algorithm in the current related art performs echo cancellation successively on each sampling point data (that is, the data of a sampling point) in the sound signal, and its calculation amount is too high. When it is applied in a low-power chip, the call Quality suffers severely, resulting in less effective echo cancellation

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  • Echo cancellation method and device and storage medium
  • Echo cancellation method and device and storage medium
  • Echo cancellation method and device and storage medium

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Embodiment Construction

[0059] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0060] It should be understood that "several" mentioned herein refers to one or more, and "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character " / " gen...

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Abstract

The invention discloses an echo cancellation method, and belongs to the technical field of sound processing. The method comprises the following steps of acquiring a near-end sound signal and a far-endsound signal, wherein each of the near-end sound signal and the far-end sound signal is composed of multiple pieces of sampling point data, and the sampling point data are f-bit data; inputting the acquired near-end sound signal and far-end sound signal into an echo cancellation algorithm model; and by taking fXh-bit data as units, performing echo cancellation processing on the input signals through the echo cancellation algorithm model, and outputting the sound signals subjected to the echo cancellation, wherein h is an integer greater than or equal to 2. According to the scheme, for the signals organized by the f-bit sampling point data, parallel processing is performed by taking the h pieces of sampling point data as a group, so that the duration required for processing the sound signals is shortened, the echo cancellation efficiency can be effectively improved, and the effect of performing the echo cancellation on a low-power chip is improved.

Description

technical field [0001] The present disclosure relates to the technical field of sound processing, and in particular to an echo cancellation method, device and storage medium. Background technique [0002] Echo cancellation has been widely used in teleconferencing systems, hands-free phones, Bluetooth headsets, hearing aids and other voice communication terminal products. [0003] In related technologies, echo refers to a phenomenon in which a sound played by a loudspeaker is picked up by a microphone and sent back to the far end during a call, so that the talker at the far end can hear his own voice. Echo cancellation refers to an algorithm that uses an adaptive method to estimate the size of the echo signal, and then subtracts this estimated value from the received signal to cancel the echo. [0004] The echo cancellation algorithm in the current related art performs echo cancellation successively on each sampling point data (that is, the data of a sampling point) in the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0264
CPCG10L21/0208G10L21/0264G10L2021/02082
Inventor 陈小燕冯大航陈孝良常乐
Owner SOUNDAI TECH CO LTD
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