Echo signal processing method, device and equipment and computer readable storage medium

A technology of echo signal and processing method, which is applied in the field of signal processing, can solve problems such as sound signal interference, reduce the quality of audio and video calls, etc., and achieve a good weakening effect

Pending Publication Date: 2022-04-15
北京梧桐车联科技有限责任公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to prevent the echo signal from interfering with the sound signal of the near-end speaker and reduce the quality of audio and video calls, a processing method for the echo signal is needed to weaken the echo signal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Echo signal processing method, device and equipment and computer readable storage medium
  • Echo signal processing method, device and equipment and computer readable storage medium
  • Echo signal processing method, device and equipment and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0052] figure 1 It is a schematic diagram of the implementation environment of an echo signal processing method provided in the embodiment of the present application, as shown in figure 1 As shown, the implementation environment includes: an electronic device 101 . The echo signal processing method in this embodiment of the present application may be executed by the electronic device 101 . Exemplarily, the electronic device 101 may include at least one of a terminal device or a server.

[0053] Terminal equipment can be smartphones, game consoles, desktop computers, tablet computers, e-book readers, MP3 (Moving Picture Experts Group Audio Layer III, moving picture experts compression standard audio layer 3) players, MP4 (Moving...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an echo signal processing method, device and equipment and a computer readable storage medium, and belongs to the technical field of signal processing. The method comprises the following steps: acquiring a call state based on a far-end signal and a near-end signal; obtaining an estimated echo signal based on the far-end signal, and removing the estimated echo signal from the near-end signal to obtain an error signal; calculating an incoherence value of the far-end signal and the near-end signal and a coherence value of the near-end signal and the error signal; determining an inhibition factor based on the call state, the incoherence value and the coherence value; the error signal is processed based on the suppression factor. As the suppression factor is jointly determined based on the call state, the incoherence value of the far-end signal and the near-end signal and the coherence value of the near-end signal and the error signal, the suppression factor has high relevance with the call state, the far-end signal, the near-end signal and the error signal, and the error signal is processed by adopting the suppression factor, so that the error signal can be effectively suppressed. And the effect of weakening the residual echo signal in the error signal is good.

Description

[0001] This application claims the priority of the Chinese patent application with application number 202111629809.7 and titled "Echo Signal Processing Method, Device, Device, and Computer-Readable Storage Medium" filed on December 28, 2021, the entire contents of which are incorporated by reference Incorporated in the embodiments of this application. technical field [0002] The embodiments of the present application relate to the technical field of signal processing, and in particular to a method, device, device, and computer-readable storage medium for processing an echo signal. Background technique [0003] During an audio and video call, after the far-end signal is played through the near-end speaker, the near-end signal collected by the near-end microphone will include the sound signal of the near-end talker and the echo signal of the far-end signal. In order to prevent the echo signal from interfering with the sound signal of the near-end speaker and reduce the qualit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G10L21/0208G10L21/0232H04M9/08
Inventor 来杏杏沈洋王倩
Owner 北京梧桐车联科技有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap