Noise reduction parameter setting method and apparatus, earphone device and storage medium

1 . A noise reduction parameter setting method, applied to an earphone device comprising a feedforward microphone and a feedback microphone, comprising:

obtaining an environmental signal picked up by the feedforward microphone and a noise signal picked up by the feedback microphone;

calculating an energy difference value between the environmental signal and the noise signal; and

obtaining a preset target noise reduction parameter value corresponding to the energy difference value, and setting a noise reduction parameter for an active noise reduction mode in the earphone device according to the target noise reduction parameter value;

wherein obtaining the preset target noise reduction parameter value corresponding to the energy difference value comprises:

determining a target difference value level to which the energy difference value belongs from a plurality of preset difference value levels; and

obtaining a preset noise reduction parameter value corresponding to the target difference value level as the target noise reduction parameter value;

wherein after calculating the energy difference value between the environmental signal and the noise signal, the method further comprises:

detecting whether the energy difference value is less than a preset minimum threshold;

obtaining the preset target noise reduction parameter value corresponding to the energy difference value, and setting the noise reduction parameter for the active noise reduction mode in the earphone device according to the target noise reduction parameter value, in response to that the energy difference value is greater than or equal to the preset minimum threshold; or

outputting preset prompting information to prompt a user to adjust a wearing state of an earphone, in response to that the energy difference value is less than the preset minimum threshold.

2 . The noise reduction parameter setting method of claim 1 , wherein calculating the energy difference value between the environmental signal and the noise signal comprises:

performing spectrum analysis on the environmental signal to obtain a first spectrum, and performing the spectrum analysis on the noise signal to obtain a second spectrum; and

calculating a difference value between an energy value of each frequency point in the first spectrum and an energy value of a corresponding frequency point in the second spectrum respectively, and using the difference value corresponding to each frequency point as the energy difference value between the environmental signal and the noise signal.

3 . The noise reduction parameter setting method of claim 2 , wherein the preset minimum threshold comprises a threshold corresponding to each frequency point, and detecting whether the energy difference value is less than the preset minimum threshold comprises:

detecting whether the difference value of each frequency point is less than the threshold of the corresponding frequency point;

in response to that the difference value at each frequency point is less than the threshold of the corresponding frequency point, determining that the energy difference value is less than the preset minimum threshold; or

in response to that at least one of the difference values at the frequency points is greater than or equal to the threshold of corresponding one of the frequency points, determining that the energy difference value is greater than the preset minimum threshold.

4 . The noise reduction parameter setting method of claim 2 , wherein determining the target difference value level to which the energy difference value belongs from the plurality of preset difference value levels comprises:

comparing the difference value at each frequency point with a difference value interval of the corresponding frequency point at a preset difference value level to count a number of frequency points where the difference value falls within the corresponding difference value interval; and

using a difference value level with a largest number of corresponding frequency points among the plurality of preset difference value levels as the target difference value level to which the energy difference value belongs.

5 . The noise reduction parameter setting method of claim 1 , wherein before obtaining the environmental signal picked up by the feedforward microphone and the noise signal picked up by the feedback microphone, the method further comprises:

obtaining collection values of multiple contact sensors provided on an earphone wearing part of the earphone device;

detecting whether each of the collection values is greater than a preset threshold; and

in response to that at least one of the collection values is greater than the preset threshold, obtaining the environmental signal picked up by the feedforward microphone and the noise signal picked up by the feedback microphone.

6 . An earphone device, comprising: a memory, a processor and a noise reduction parameter setting program stored in the memory and executable on the processor, wherein the noise reduction parameter setting method of claim 1 is implemented when the noise reduction parameter setting program is executed by the processor.

7 . A non-transitory computer-readable storage medium, wherein a noise reduction parameter setting program is stored on the non-transitory computer-readable storage medium, and the noise reduction parameter setting method of claim 1 is implemented when the noise reduction parameter setting program is executed by a processor.

8 . A noise reduction parameter setting apparatus, provided in an earphone device comprising a feedforward microphone and a feedback microphone, comprising:

an obtaining module, configured to obtain an environmental signal picked up by the feedforward microphone and a noise signal picked up by the feedback microphone;

a calculation module, configured to calculate an energy difference value between the environmental signal and the noise signal; and

a setting module, configured to obtain a preset target noise reduction parameter value corresponding to the energy difference value, and set a noise reduction parameter for an active noise reduction mode in the earphone device according to the target noise reduction parameter value;

wherein obtaining the preset target noise reduction parameter value corresponding to the energy difference value comprises:

determining a target difference value level to which the energy difference value belongs from a plurality of preset difference value levels; and

obtaining a preset noise reduction parameter value corresponding to the target difference value level as the target noise reduction parameter value;

wherein after calculating the energy difference value between the environmental signal and the noise signal, the method further comprises:

detecting whether the energy difference value is less than a preset minimum threshold;

obtaining the preset target noise reduction parameter value corresponding to the energy difference value, and setting the noise reduction parameter for the active noise reduction mode in the earphone device according to the target noise reduction parameter value, in response to that the energy difference value is greater than or equal to the preset minimum threshold; or

outputting preset prompting information to prompt a user to adjust a wearing state of an earphone, in response to that the energy difference value is less than the preset minimum threshold.