Noise elimination method, device, equipment and computer readable storage medium

By adjusting the filter gain based on the ambient noise level of the audio device, the problem that existing noise cancellation methods cannot adapt to different scenarios is solved, achieving effective noise cancellation in different noise environments and reducing system computation and power consumption.

CN116887126BActive Publication Date: 2026-07-24GEER TECH CO LTD
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Patent Information

Application Number
CN202310854190.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-12
Publication Date
2026-07-24
Estimated Expiration
2043-07-12

AI Technical Summary

Technical Problem

Existing noise cancellation methods cannot meet the noise cancellation needs of different usage scenarios, thus affecting their practicality.

Method used

By acquiring the ambient sound signal of the external environment where the audio device is located, the ambient noise level is determined, and the gain of the noise cancellation filter is adjusted based on the noise level. The input audio signal is then processed with a negative correlation to eliminate noise.

Benefits of technology

This invention enables noise cancellation methods to adapt to different environmental noise requirements, improves the practicality of noise cancellation, and reduces the computational load and power consumption of the signal processing system.

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Abstract

The present application relates to the technical field of signal processing, and particularly relates to a noise elimination method, device, equipment and computer readable storage medium, the method comprising: obtaining an ambient sound signal of an external environment in which an audio device is located, and determining an ambient noise level of the ambient sound signal; obtaining an input audio signal of the audio device, and determining a base gain of a noise elimination filter of the audio device based on the input audio signal; adjusting the base gain based on the ambient noise level to obtain a filter gain, wherein the filter gain and the ambient noise level are in a negative correlation relationship; and processing the input audio signal of the audio device through the filter gain to eliminate noise when the input audio signal is played. The present application makes the noise elimination method adapt to different ambient noises, so that the noise elimination method can meet the needs of different ambient noises, thereby improving the practicability of the noise elimination method.
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Citation Information

Patent Citations

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  • Earphone noise elimination method and device, terminal equipment and computer medium

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