Noise reduction method, device, headphone device and storage medium
By obtaining and using the attenuation coefficient of the noise signal, the environmental noise signal is appropriately attenuated and compensated, the problem of the noise signal error in the noise reduction technology is solved, and the noise reduction effect and the use experience of the noise reduction headphones are improved.
CN114885240BActive Publication Date: 2025-01-28GOERTEK INC
Patent Information
- Application Number
- CN202210461558.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-28
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2042-04-28
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Figure CN114885240B_ABST
Abstract
The present invention discloses a noise reduction method, device, headphone device and storage medium, wherein the noise reduction method is applied to the headphone device, and the noise reduction method comprises: obtaining an environmental noise signal through a feedforward microphone in the headphone device; obtaining a first attenuation coefficient and a second attenuation coefficient, wherein the first attenuation coefficient represents the attenuation of the noise signal when it is transmitted from the position of the feedforward microphone to the position of the user's eardrum, and the second attenuation coefficient represents the attenuation of the noise signal when it is transmitted from the position of the loudspeaker to the position of the user's eardrum; performing target processing on the environmental noise signal to obtain a noise reduction signal, and playing it with a loudspeaker, wherein the target processing includes anti-phase processing, attenuation processing using the first attenuation coefficient, and compensation processing using the second attenuation coefficient. The present invention enables the noise reduction signal that finally reaches the user's eardrum to more offset the noise signal at the user's eardrum, thereby improving the effect of active noise reduction and improving the user experience of the noise reduction headphones.
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Citation Information
Patent Citations
Path compensation function determination method and device and active noise reduction method and device
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Noise canceling headphones
JP2007028354A