Unlock instant, AI-driven research and patent intelligence for your innovation.

A sound signal processing method, device and equipment

A sound signal and processing method technology, applied in speech analysis, speech recognition, instruments, etc., can solve problems such as reducing the accuracy of device parsing voice commands, interference, etc.

Active Publication Date: 2021-08-27
大众问问(北京)信息科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are usually interfering signals in the environment, which reduces the accuracy of the device's ability to interpret voice commands

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sound signal processing method, device and equipment
  • A sound signal processing method, device and equipment
  • A sound signal processing method, device and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0171] The on-board equipment may include a sound source localization module, a multi-beamforming module and a gain module, where:

[0172] The sound source localization module is configured to determine the sound source direction based on the multi-channel sound signals collected by the microphone array.

[0173] For example, the in-vehicle device can perform voice interaction with the user, or have a dialogue. During the dialogue, the direction of the sound source is the direction of the user, and the direction of the sound source can be the direction of the main driver or the direction of the co-driver. In one case, the direction of the sound source can be determined once during a dialogue, and it is considered that the direction of the sound source remains unchanged during the dialogue.

[0174]For example, the sound source localization module can use DOA estimation to analyze the multi-channel sound signals collected by the microphone array, so as to determine the directi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the present invention discloses a sound signal processing method, device and equipment. The method includes: counting the number of frames of the sound signal from the direction of the sound source within a preset time period; The gain value; use the gain value to perform gain processing on the sound signal of the current frame; the direction of the sound source can be understood as the direction of the user interacting with the device, and the sound signal generated in the direction of the non-sound source can be understood as an interference signal. In this solution, If the number of frames obtained by statistics is small, it means that there is an interference signal in a period of time before the current frame. The interference signal is continuous, and it can be considered that there is also an interference signal in the current frame. In this case, the gain corresponding to the sound signal of the current frame If the value is small, use this gain value to perform gain processing on the sound signal of the current frame, that is, to suppress the sound signal of the current frame, thus reducing the influence of the interference signal.

Description

technical field [0001] The present invention relates to the technical field of sound processing, in particular to a sound signal processing method, device and equipment. Background technique [0002] In some scenarios, the user can perform voice interaction with the electronic device. For example, the user can send a voice command to a car device, a smart home device, etc., and these devices can parse and execute the voice command. [0003] But there are often interfering signals in the environment, which can reduce the accuracy of the device's ability to interpret voice commands. For example, in the vehicle environment, the main driver sends voice commands to the vehicle equipment, and the co-pilot is still talking with the main driver. In this case, the voice signal from the direction of the co-pilot will interfere with the vehicle equipment. Contents of the invention [0004] In view of this, the object of the present invention is to provide a sound signal processing m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G10L15/22G10L21/0216G10L21/028
CPCG10L15/22G10L21/0216G10L21/028G10L2021/02166
Inventor 杨晓霞刘溪
Owner 大众问问(北京)信息科技有限公司