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Voice direction finding system and voice direction finding method

A voice and voice signal technology, which can be used in systems that determine direction or offset, systems that eliminate unnecessary waves, and direction finders that use ultrasonic/sonic/infrasonic waves. It can solve the problem of inability to locate and obtain noise filtering effects and other issues, to achieve the effect of accurate judgment

Inactive Publication Date: 2017-10-24
YUTOU TECH HANGZHOU
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AI Technical Summary

Problems solved by technology

[0003] Existing noise filtering schemes usually use a dual-microphone system to separately collect speech samples and noise samples for filtering to achieve noise filtering. However, the dual-microphone system can only be used for handheld devices with a fixed voice source direction. When used for desktop devices , due to the inability to locate the direction of the sound source, a good noise filtering effect cannot be obtained

Method used

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  • Voice direction finding system and voice direction finding method
  • Voice direction finding system and voice direction finding method
  • Voice direction finding system and voice direction finding method

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the following technical solutions and technical features can be combined with each other.

[0031] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0032] This embodiment provides a voice direction finding system, such as figure 1 shown, including:

[0033] Circular bottom plate 1;

[0034] The microphone array includes at least eight MEMS (Micro Electro Mechanical System, microelectromechanical system) microphones 2, wherein at least eight MEMS microphones 2 are arranged on the front of the circular base plate 1 in a circumferential shape, and the corresponding circle center positions of the circular base plate 1 There is also a MEMS microphone 2, and the microphone array is used to collect voice signals;

[0035] The identification module is connected with each MEMS microphone 2 and is used for identifying the MEMS microphone 2 closest t...

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Abstract

The invention relates to the technical field of voice interaction, and particularly relates to a voice direction finding system and a voice direction finding method. a microphone array is arranged to collect voice signals from a voice source, multiple MEMS microphones are used to recognize an MEMS microphone nearest to the voice source, and thus, the voice signal source direction can be accurately judged.

Description

technical field [0001] The invention relates to the technical field of voice interaction, in particular to a voice direction finding system and method. Background technique [0002] The speech recognition system needs to collect the user's speech signal for recognition, and there are usually noises other than speech in the environment. After the noise is collected with the user's speech, it will seriously affect the accuracy of speech recognition. Therefore, filtering out noise is the key to the speech recognition system. important technical issues. [0003] Existing noise filtering schemes usually use a dual-microphone system to separately collect speech samples and noise samples for filtering to achieve noise filtering. However, the dual-microphone system can only be used for handheld devices with a fixed voice source direction. When used for desktop devices , due to the inability to locate the direction of the sound source, a good noise filtering effect cannot be obtaine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/802
CPCG01S3/802G01S3/803H04R1/406H04R3/005G01S3/86
Inventor 高鹏范利春朱磊
Owner YUTOU TECH HANGZHOU
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