A current noise elimination method, device and storage medium

A current and memory technology, applied in the field of communication, can solve the problems of high cost of noise reduction, unresolved background noise current sound, etc., to achieve the effect of eliminating background noise current sound and ensuring the quality of audio signals

Active Publication Date: 2022-06-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this noise reduction method can only deal with the current sound mainly concentrated in TDD noise ((Time Division Distortion) (217Hz and its harmonics) during the call, which will cause interference to the power frequency signal introduced by the hardware circuit of the mobile terminal itself. There is no solution for the current noise floor, because the current noise floor introduced by the mobile phone itself is not introduced by the background noise of the call environment
[0003] For the background noise current noise introduced by the mobile phone itself, such as the current noise introduced by power chips and charging lines, the industry's practice is to replace the circuit until the bottom noise current noise disappears or weakens, and the cost of noise reduction is relatively high.

Method used

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  • A current noise elimination method, device and storage medium
  • A current noise elimination method, device and storage medium
  • A current noise elimination method, device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, current sound cancellation methods include:

[0035] Step 101: Acquire the audio digital signal of the terminal device;

[0036] Step 102: From the preset current sound curing parameter set, determine the first type of current sound curing parameter corresponding to the audio digital signal; wherein, the current sound curing parameter set includes at least one current sound curing parameter, and the current sound curing parameter represents the terminal. The noise floor current sound introduced by at least one component in the device, the first type of current sound curing parameters represent all the noise floor current sounds contained in the audio digital signal;

[0037] Step 103: Based on the first type of current sound curing parameters, eliminate all noise floor current sounds in the audio digital signal.

[0038] Here, the execution subject of steps 101 to 103 may be the processor of the terminal device, or the processor of the current ...

Embodiment 2

[0058] In order to better reflect the purpose of the present invention, on the basis of Embodiment 1 of the present invention, further examples are given, such as Figure 5 As shown, the network connection method specifically includes:

[0059] Step 501: Determine whether it is necessary to update the current sound curing parameter set, if yes, go to Step 502; if not, go to Step 505.

[0060] It should be noted that during the use of the terminal device, due to the aging of the device, the parameters of the current sound will change. When the user's subjective feeling of the current sound of the terminal device becomes obvious, the update curing parameters can be started in the setting menu item. The set operation is used to complete the operation of updating the current sound curing parameter set, so as to reduce the deterioration of the current sound elimination effect due to the aging of the device.

[0061] Here, the judging method includes whether the preset update time ...

Embodiment 3

[0076] Based on the same inventive concept, an embodiment of the present invention further provides a current sound elimination device. Image 6 It is a schematic diagram of the composition structure of the current sound elimination device in the embodiment of the present invention, such as Image 6 As shown, the device 60 includes: a processor 601 and a memory 602, wherein,

[0077] The processor 601 is configured to execute the current sound elimination program stored in the memory 602 to realize the following steps:

[0078] Obtain the audio digital signal of the terminal device;

[0079] From a preset set of current sound curing parameters, determine the first type of current sound curing parameters corresponding to the audio digital signal; wherein, the current sound curing parameter set includes at least one current sound curing parameter, and the current sound curing parameter The parameter characterizes the noise floor current sound introduced by at least one compone...

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Abstract

The embodiment of the present invention discloses a method for eliminating current sound, the method comprising: determining the first type of current sound curing parameter corresponding to the audio digital signal from the preset current sound curing parameter set; wherein, the current The sound curing parameter set includes at least one current sound curing parameter, the current sound curing parameter characterizes the background noise current sound introduced by at least one component in the terminal device, and the first type of current sound curing parameter characterizes the current sound in the audio digital signal All current noise floor sounds included; based on the first type of current sound solidification parameters, all current noise floor noise in the audio digital signal is eliminated. The embodiment of the invention also discloses a current noise canceling device and a storage medium.

Description

technical field [0001] The present invention relates to communication technology, and in particular, to a method, device and storage medium for eliminating current sound. Background technique [0002] With the development of communication technology, the requirements for call quality are getting higher and higher, and the existence of current sound has a serious impact on the call quality. There are several aspects to the generation of the current sound. One is the (uplink) background noise introduced by the mic during the call, which brings the current sound to the receiver; the other is the introduction of the radio frequency circuit, charging circuit, and power chip, and the caller himself is in the receiver receiver. The current sound (downward) heard at . At present, for the current sound introduced by mic, the background noise of the caller's environment can be reduced through dual mic (abbreviation for Microphone) noise reduction, and the sound can be reduced through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/19
CPCH04M1/19
Inventor 潘春岭谢姣
Owner ZTE CORP
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