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Sound source position check method and device

A technology of sound source location and calibration method, which is applied to measuring devices, positioning, instruments, etc., can solve problems such as misjudgment of sound source, noisy environment noise, and inaccurate sound source location

Active Publication Date: 2020-02-25
HANGZHOU HIKVISION SYST TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] However, the received sound is usually accompanied by very noisy ambient noise, which makes the location of the determined sound source inaccurate, and the above sound source localization method will lead to misjudgment of the sound source

Method used

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  • Sound source position check method and device
  • Sound source position check method and device

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Embodiment Construction

[0140] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0141] In some scenes, it is usually necessary to locate the sound source. For example, if there is a vehicle honking in violation of regulations on the road, it is necessary to locate the honking sound to determine the vehicle honking in violation of regulations, so as to facilitate warning or punishment of vehicles honking in violation of regulations, or when monitoring a certain area , if abnormal sound is detected, it is necessary to loca...

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Abstract

The embodiment of the invention provides a sound source position check method. The method comprises the steps of: obtaining two parts of sound signals, which are simultaneously acquired for the same scene; for each part of sound signals, determining a sound source position corresponding to the part of sound signals; comparing two determined sound source positions; and, if a comparison result satisfies a pre-set condition, determining that the two sound source positions are effective sound source positions. Thereby, the two determined sound source positions are compared; the effectiveness of the two sound source positions is checked; and thus, wrong judgement on a sound source is reduced.

Description

technical field [0001] The invention relates to the technical field of sound source detection, in particular to a sound source position verification method and device. Background technique [0002] In some scenes, it is usually necessary to locate the sound source. For example, if a vehicle whistles illegally on the road, it is necessary to locate the whistle sound to determine the vehicle that whistles illegally, so that it is convenient to warn or punish the vehicle that whistles illegally. [0003] Existing sound source localization methods usually use a microphone array to receive sound, and determine the position of the sound source by analyzing the spectral characteristics of the sound. [0004] However, the received sound is usually accompanied by very noisy ambient noise, which makes the location of the determined sound source inaccurate, and the above sound source localization method will lead to misjudgment of the sound source. Contents of the invention [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/22
CPCG01S5/22
Inventor 王科裴建军沈涛于建志
Owner HANGZHOU HIKVISION SYST TECH
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