Noise reduction method, storage medium, chip and electronic device
A noise reduction and factor technology, applied in the field of noise reduction, can solve problems such as hearing discomfort, and achieve the effect of improving user experience.
Active Publication Date: 2021-11-05
SHENZHEN BLUETRUM TECH CO LTD
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Problems solved by technology
The traditional dual-mic noise reduction method usually uses the low-frequency part of bone conduction to directly compensate the low-frequency part of the air-conduction microphone signal. This method has an obvious sense of switching, which causes hearing discomfort
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[0055] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0056] It should be noted that, if there is no conflict, various features in the embodiments of the present invention may be combined with each other, and all of them are within the protection scope of the present invention. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical order is shown in the flowchart, in some cases, the divisi...
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The invention relates to the technical field of noise reduction, in particular to a noise reduction method, a storage medium, a chip and electronic equipment. The noise reduction method includes: obtaining the prior signal-to-noise ratio of air-bone fusion, which is obtained by fusing the air conduction parameters of this frame, the bone conduction parameters of this frame and the air conduction noise parameters of this frame Check the signal-to-noise ratio, calculate the noise reduction gain, and perform the noise reduction operation according to the noise reduction gain and air conduction parameters. Since this embodiment can adaptively fuse the air conduction parameters of the current frame, the bone conduction parameters of the current frame and the air conduction noise parameters of the current frame according to the environmental noise, the voice can be conveyed to the user more naturally and without a sense of switching, thereby improving the user experience. sense of experience.
Description
technical field [0001] The invention relates to the technical field of noise reduction, in particular to a noise reduction method, a storage medium, a chip and electronic equipment. Background technique [0002] With the continuous development of mobile voice communication, it is very important to maintain the intelligibility, reliability and audibility of voice in a noisy environment. The noise reduction algorithm based on the traditional single-channel air conduction microphone has too many limitations, for example, in the case of low signal-to-noise ratio, the speech is easily distorted. [0003] Because the physical sensing characteristics of bone conduction microphones make them immune to environmental noise, the dual-mic noise reduction method based on bone conduction microphones and air conduction microphones is a better choice. The traditional dual-mic noise reduction method usually uses the low-frequency part of bone conduction to directly compensate the low-freque...
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IPC IPC(8): G10L21/0208H04R3/02
CPCG10L21/0208H04R3/02H04R1/1083H04R3/005H04R2460/13G10K11/17854
Inventor 阎张懿林锦鸿汪震
Owner SHENZHEN BLUETRUM TECH CO LTD