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Echo suppression method and device

A technology of echo suppression and noise suppression, which is applied in the field of computing equipment and computer-readable storage media, and echo suppression, can solve problems such as difficulty in completely clearing sound, residual echo signals, and poor user experience, so as to improve user experience. Effect

Pending Publication Date: 2021-05-25
BEIJING YUANLI WEILAI SCI & TECH CO LTD
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  • Summary
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  • Claims
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Problems solved by technology

However, the sound played by the speaker is collected by the microphone again as an acoustic echo, especially if the user is in an environment with severe reverberation, it will cause a bad experience for the user
Even though there are echo cancellation methods and devices in the prior art, there are still residual echo signals that are difficult to be completely removed in the processed sound

Method used

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  • Echo suppression method and device
  • Echo suppression method and device
  • Echo suppression method and device

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Embodiment Construction

[0039] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0040] Terms used in one or more embodiments of this specification are for the purpose of describing specific embodiments only, and are not intended to limit one or more embodiments of this specification. As used in one or more embodiments of this specification and the appended claims, the singular forms "a", "the", and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used in one or more embodiments of the present sp...

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Abstract

The invention relates to an echo suppression method and device. The echo suppression method comprises the following steps: performing linear processing on a near-end signal acquired by audio input equipment to obtain an error signal; obtaining an overall residual signal contained in the error signal, wherein the overall residual signal comprises at least one of a background noise signal, an early residual echo signal, a late residual echo signal and a late reverberation signal; determining a noise suppression gain corresponding to the overall residual signal; and acting the noise suppression gain on the error signal to obtain a target signal. According to the echo suppression method provided by the invention, the residual echo in the audio can be further suppressed, and the user experience is improved.

Description

technical field [0001] The present application relates to the technical field of audio signal processing, and in particular to an echo suppression method and device, computing equipment, and a computer-readable storage medium. Background technique [0002] During the call of the webcast course, the user's voice information is received through the microphone, and the sound is played to the user through the speaker. However, the sound played by the speaker is collected by the microphone again as an acoustic echo, especially when the user is in an environment with severe reverberation, which will cause a bad experience for the user. Even though there are echo cancellation methods and devices in the prior art, residual echo signals that are difficult to be completely removed still exist in the processed sound. [0003] Therefore, how to further suppress the residual echo has become an urgent technical problem to be solved by those skilled in the art. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0224G10L21/0232
CPCG10L21/0224G10L21/0232
Inventor 秦亚光夏龙
Owner BEIJING YUANLI WEILAI SCI & TECH CO LTD
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