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Adaptive method of echo cancellation based on PC and mobile terminals

An echo cancellation and mobile terminal technology, which is applied to the network, interconnection device, two-way sound reinforcement telephone system and other directions of the telephone service provided, can solve the problems of not supporting the cloud, etc., and achieve the best effect of echo cancellation

Active Publication Date: 2022-02-01
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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  • Adaptive method of echo cancellation based on PC and mobile terminals
  • Adaptive method of echo cancellation based on PC and mobile terminals

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 for speaker amplification, indicating the multiple corresponding to the enable parameter. The sendenable parameter is greater than 98 and is used for Mic data collection. The speakoutvolume parameter configures the volume of the speaker from 0 to 100. 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 field of voice technology, and discloses an adaptive echo cancellation method based on a PC terminal and a mobile terminal. The equipment of the method includes a sending device, a receiving device, and a cloud cancellation server; both the sending device and the receiving device have their own echo cancellation services. Equipment, such as: mobile phone equipment, embedded equipment and PC equipment. The devices that have been processed by the cloud cancellation server do not collect voice data, and the devices that have not been processed will collect voice data. For devices that have problems with the echo cancellation effect when the user uses the device, the echo cancellation parameters will be adaptively adjusted. Through the design of the present invention, the integration of the mainstream echo cancellation technology is realized, the support of cloud services is added, the real intercom environment can be simulated and restored, and the echo cancellation parameters can be dynamically calculated in the cloud, which can well meet the echo requirements of various devices Elimination, to achieve the best effect of echo cancellation.

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 remote device for extracting sound; a server fo...

Claims

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Application Information

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