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Echo cancellation self-adaption method based on PC terminal and mobile terminal

A kind of echo cancellation, mobile terminal technology, applied in the direction of the network, telephone communication, electrical components, etc. of the provided telephone service, can solve the problem of not supporting the cloud, etc., to achieve the best effect of echo cancellation

Active Publication Date: 2020-04-10
HANGZHOU MEARI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem in the prior art that the echo cancellation is fixed in the embedded software and does not support the cloud, the present invention proposes an adaptive echo cancellation method based on the PC terminal and the mobile terminal

Method used

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  • Echo cancellation self-adaption method based on PC terminal and mobile terminal
  • Echo cancellation self-adaption method based on PC terminal and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for echo cancellation adaptation based on the PC terminal and the mobile terminal comprises the following steps:

[0034] Step 1: The sending device sends a request voice chat signal, the receiving device receives the request voice chat signal, and feeds back the voice chat signal to the sending device;

[0035] Step 2: The sending device transmits the device parameters to the cloud server, and the receiving device transmits the device parameters to the cloud server; the cloud server feeds back the configuration parameters of the receiving device to the receiving device, and feeds back the configuration parameters of the sending device to the sending device;

[0036] Step 3: The sending device initializes the echo cancellation parameters of the sending device, and the receiving device initializes the echo cancellation parameters of the receiving device;

[0037] Step 4: The sending device transmits the collected voice data signal to the cloud server, and the ...

Embodiment 2

[0055] In step 3, echo cancellation parameters include aecm parameter, ns parameter and agc parameter, and aecm parameter, ns parameter and agc parameter are configured according to Json format; Json format includes mobile phone model parameter, echo cancellation delayms parameter, agc parameter, aecm parameter, ns Parameters, Gaussian filtering, drift components, uploading files.

[0056] The echo cancellation delayms parameter determines the echo cancellation effect. In the agc parameter configuration, the enable parameter greater than 98 is used to amplify the speaker, indicating the multiple corresponding to the amplified enable parameter, the sendenable parameter is greater than 98 and is used to collect data from the Mic, the speakoutvolume parameter configures the volume of the speaker from 0 to 100, and the aecm parameter configures the echo cancellation to be turned on and off , The ns parameter configures noise reduction on and off.

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Abstract

The invention relates to the technical field of voice, and discloses an echo cancellation self-adaption method based on a PC terminal and a mobile terminal, and equipment of the method comprises sending equipment, receiving equipment and a cloud cancellation server. The sending equipment and the receiving equipment are equipment with echo elimination services, such as a mobile phone equipment, anembedded equipment and a PC equipment. The equipment already processed by the cloud elimination server does not acquire voice data, the equipment not processed by the cloud elimination server acquiresvoice data, and echo elimination parameters can be adaptively adjusted for the equipment with a feedback echo elimination effect problem in the process of using the equipment by a user. Through the design of the invention, the integration of the echo cancellation mainstream technology is realized, the support of the cloud service is increased, the real intercom environment can be simulated and restored to realize the cloud dynamic calculation of echo cancellation parameters, the echo cancellation of various equipment can be well satisfied, and the optimal echo cancellation effect is achieved.

Description

technical field [0001] The invention relates to the field of voice technology, in particular to an echo cancellation adaptive method based on a PC terminal and a mobile terminal. Background technique [0002] On smart phone devices, the echo cancellation technology is very mature. However, the echo cancellation solutions of these devices are all fixed in the embedded software, which is not easy to modify, and lacks cloud support. At present, there are too many Android models in the market, and they cannot do a good job of echo cancellation when docking with embedded devices. It is necessary to rely on the powerful computing functions of the cloud to achieve the best echo cancellation effect. [0003] Patent Title: Echo Cancellation System, Application Number: CN201210562446.4, Application Date: 2012-12-21. It is recorded in the invention patent that the echo cancellation system includes: a remote device for extracting sound; a server for coupling to the remote device; and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M9/08H04M7/00H04L29/08
CPCH04M9/08H04M7/006H04L67/10
Inventor 陈杭峰金伟应红力
Owner HANGZHOU MEARI TECH CO LTD
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