Noise reduction method, terminal equipment and storage medium
A terminal device and noise reduction technology, applied in the field of noise reduction, can solve the problems of inability to achieve "ear drum" noise reduction effect, sound field correction and calibration, poor noise reduction effect, etc., to achieve optimal fixed-point active noise reduction effect, Realize the effect of stereo field correction and calibration
Active Publication Date: 2020-10-09
GEER TECH CO LTD
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[0003] However, the method of collecting noise signals through an omnidirectional microphone can only collect the corresponding noise at the location of the omnidirectional microphone, so it is impossible to correct and calibrate the sound field
In this way, the existing earphones cannot achieve the noise reduction effect at the "ear tympanic membrane", which has the disadvantage of poor noise reduction effect.
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[0032] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] In traditional noise-cancelling earphones, noise signals are generally collected by an omnidirectional microphone installed in the earphone, and then based on the noise signals collected by the omnidirectional microphone, a noise-cancelling signal corresponding to the noise is generated to achieve a noise-cancelling effect.
[0034] However, by collecting noise signals with an omnidirectional microphone, only the noise corresponding to the location of the omnidirectional microphone can be collected, so it is impossible to correct and calibrate the sound field. This leads to the fact that existing earphones cannot achieve the noise reduction effect at the "ear tympanic membrane", which has the disadvantage of poor noise reduction effect.
[0035] In order to solve the above defects of traditional noise reduction...
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The invention discloses a noise reduction method. The method comprises the following steps: obtaining noise signals collected by microphones; determining signal characteristics of residual noise at atympanic membrane of the wearer according to the noise signals acquired by the microphones and the position information of the microphones; and outputting a noise reduction audio according to the signal characteristics of the residual noise, wherein the noise reduction audio is an inverted equal-amplitude audio of the residual noise. The invention further discloses terminal equipment and a computer readable storage medium, and the purpose of improving the fixed-point noise reduction effect of the terminal equipment is achieved.
Description
technical field [0001] The present invention relates to the technical field of noise reduction, in particular to a noise reduction method, a terminal device and a computer-readable storage medium. Background technique [0002] In order to improve the user's earphone experience, many earphones are equipped with a noise reduction function. In traditional noise-cancelling earphones, noise signals are generally collected by an omnidirectional microphone installed in the earphone, and then based on the noise signals collected by the omnidirectional microphone, a noise-cancelling signal corresponding to the noise is generated to achieve a noise-cancelling effect. [0003] However, by collecting noise signals with an omnidirectional microphone, only the noise corresponding to the location of the omnidirectional microphone can be collected, so it is impossible to correct and calibrate the sound field. This leads to the fact that existing earphones cannot achieve the noise reduction...
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IPC IPC(8): H04R1/10
CPCH04R1/1083H04R2460/01
Inventor 刘际滨
Owner GEER TECH CO LTD