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Current sound elimination method and device and storage medium

A current and memory technology, applied in the field of communication, can solve the problems of unsolved current noise at the bottom and high cost of noise reduction.

Active Publication Date: 2020-03-20
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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  • Current sound elimination method and device and storage medium
  • Current sound elimination method and device and storage medium
  • Current sound elimination method and device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, current noise elimination 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 ground noise current sound introduced by at least one component in the device, the first type of current sound solidification parameter characterizes all the ground noise current sounds contained in the audio digital signal;

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

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

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 illustrations are made, such as Figure 5 As shown, the network connection methods specifically include:

[0059] Step 501: Determine whether the current sound curing parameter set needs to be updated, if yes, perform step 502; if not, perform step 505.

[0060] It should be noted that during the use of the terminal equipment, due to the aging of the device, the current sound parameters will change. When the user's subjective feeling of the current sound of the terminal equipment becomes obvious, you can start updating the curing parameters 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 cancellation effect due to device aging.

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

Embodiment 3

[0076] Based on the same inventive concept, an embodiment of the present invention also provides a current noise canceling device. Image 6 It is a schematic diagram of the composition and structure of the current noise canceling 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 used to execute the current noise elimination program stored in the memory 602, so as to realize the following steps:

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

[0079] 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 The parameter characterizes the current noise floor introduced by at least one component in the terminal...

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Abstract

The embodiment of the invention discloses a current sound elimination method, and the method comprises the steps: determining a first type of current sound solidification parameters corresponding to an audio digital signal from a preset current sound solidification parameter set, wherein the current sound solidification parameter set comprises at least one current sound solidification parameter, the current sound solidification parameter represents a background noise current sound introduced by at least one component in the terminal device, and the first type current sound solidification parameter represents all background noise current sounds contained in the audio digital signal; and eliminating all bottom noise current sounds in the audio digital signal based on the first type of current sound solidification parameters. The embodiment of the invention also discloses a current sound elimination device and a storage medium.

Description

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

Claims

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Application Information

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IPC IPC(8): H04M1/19
CPCH04M1/19
Inventor 潘春岭谢姣
Owner ZTE CORP
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