Noise reduction method and device for vehicle-mounted environment, electronic equipment and storage medium

An environmental and vehicle-mounted technology, applied in the direction of vehicle subunit functions, electrical components, vehicle components, etc., can solve problems such as poor voice recognition effects, improve noise reduction capabilities, improve signal-to-noise ratios, and improve voice recognition and wake-up capabilities Effect

Pending Publication Date: 2020-07-31
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Application Information

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Problems solved by technology

In the process of processing, some interference signals related to the voice band are not collected, resulting in a poor signal-to-noise ratio (Signal to Noise Ratio, SNR) of the pick-up microphone in the entire frequency band, so that the voice recognition effect in the vehicle environment becomes poor. Difference

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  • Noise reduction method and device for vehicle-mounted environment, electronic equipment and storage medium
  • Noise reduction method and device for vehicle-mounted environment, electronic equipment and storage medium
  • Noise reduction method and device for vehicle-mounted environment, electronic equipment and storage medium

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Embodiment Construction

[0024] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0025] figure 1 It is a flowchart of a noise reduction method for a vehicle environment according to an embodiment of the present application. see figure 1 , the noise reduction method for the vehicle environment includes:

[0026] Step S110, receiving an interference signal in the vehicle environment and receiving a sound signal in the vehicle environment, where ...

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Abstract

The invention discloses a noise reduction method and device for a vehicle-mounted environment, electronic equipment and a storage medium, whichcan be applied to the technical field of computers, in particular to the field of audio processing. The specific implementation scheme is as follows: an interference signal in a vehicle-mounted environment and a sound signal in the vehicle-mounted environment are received, wherein the interference signal comprises a vibration signal of a vehicle; noise reduction processing on the sound signal in the vehicle-mounted environment is carried out to obtain anoise reduction signal, wherein the noise reduction processing comprises the step of eliminating the interference signal from the sound signal in the vehicle-mounted environment. According to the embodiment of the invention, the vibration signal of the vehicle can be eliminated from the sound signal in the vehicle-mounted environment, thereby improving the noise reduction capability of echo elimination in the voice recognition system, improving the signal-to-noise ratio of an effective signal, and further effectively improving the voice recognition and awakening capability of the system.

Description

technical field [0001] The application can be applied in the field of computer technology, especially in the field of audio processing. Background technique [0002] The application of in-vehicle voice recognition and voice interaction in real life has become more and more common. In the process of voice recognition, it is necessary to eliminate the sound signal and environmental noise emitted by the sound unit of the vehicle equipment itself, and retain the effective voice command signal. Acoustic Echo Cancellation (AEC, Acoustic Echo Cancellation) processing in the prior art is to pick up a sound signal through a microphone, and then perform echo cancellation processing on the sound signal. In the process of processing, some interference signals related to the voice band are not collected, resulting in a poor signal-to-noise ratio (Signal to Noise Ratio, SNR) of the pick-up microphone in the entire frequency band, so that the voice recognition effect in the vehicle enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178G10L21/0208
CPCG10K11/178G10L21/0208G10K2210/1282G10L2021/02082G10L2015/223H04R3/005G10L15/00H04R2499/13G10K11/17883G10K11/17821G10L15/02G10K2210/3212B60Y2306/09G10K2210/3026
Inventor 张在东李占学车婷婷
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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