Method and device for realizing sound source localization by utilizing mobile terminal

A mobile terminal, a technology for sound source localization, which is applied in positioning, measuring devices, systems for determining direction or offset, etc., can solve problems such as the inability to meet the needs of ordinary users for sound source localization, and achieve the effect of improving function and utility.

Inactive Publication Date: 2015-03-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing research on sound source localization is to achieve sound localization in a fixed place through a fixed dedicated sound source collection device, which cannot meet the sound source localization needs of ordinary users

Method used

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  • Method and device for realizing sound source localization by utilizing mobile terminal
  • Method and device for realizing sound source localization by utilizing mobile terminal
  • Method and device for realizing sound source localization by utilizing mobile terminal

Examples

Experimental program
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specific Embodiment 1

[0078] The invention collects external sound source information through a dual / multi-microphone system of a mobile phone, and the dual / multi-mics form a microphone array. By sequentially extracting sound intensity, sound frequency processing, filtering and denoising processing, and comparing the collected external sound source information with the pre-stored sound source information on the mobile phone, the target sound source information whose similarity is greater than the threshold value is obtained . Combined with the GPS positioning function that has become the standard configuration of smartphones, the target sound source positioning can be realized.

specific Embodiment 2

[0079] The present invention can collect external sound source information through multiple mobile phones. At this time, each mobile phone acts as a microphone, so that multiple mobile phones form a microphone array. By combining the GPS positioning function of multiple mobile phones, as well as the mobile phone wifi-direct function and / or PS domain interconnection function that interconnects multiple mobile phones, a more powerful positioning array network is formed to achieve a wider range of positioning of the target sound source search. That is to say, the present invention utilizes the current smart phone GPS positioning, mobile phone wifi-direct, and PS domain interconnection to realize the interconnection of multiple mobile phones, form a network positioning system of multi-phone microphone arrays, and further improve the range and function of sound source positioning.

[0080] In summary, the present invention has the following technical effects:

[0081] The present ...

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Abstract

The present invention relates to technologies of implementing voice source tracking by using a microphone array. A method and an apparatus for a mobile terminal to implement voice source tracking. The method comprises: collecting outside voice information by using a microphone array (101); analyzing the outside voice information to determine target voice source information (102); and collecting a delay time of the target voice source information according to the microphone array to calculate a position of a target voice source (103). The apparatus comprises: a voice source information collection module (20), configured to collect outside voice information by using the microphone array; and a voice source information calculation processing module (30), configured to analyze the outside voice information, to determine target voice source information; and collect a delay time of the target voice source information according to the microphone array, to calculate a position of a target voice source.

Description

technical field [0001] The invention relates to a technology for realizing sound source localization by a microphone array, in particular to a method and a related device for a mobile terminal to realize sound source localization through a microphone array. Background technique [0002] With the popularization of smart phones, the configuration and functions are more and more powerful. The mobile phone is not only a communication tool, but also more and more functions of other devices such as notebook computers and game consoles. [0003] The existing research on sound source localization is to realize sound localization in a fixed place through a fixed dedicated sound source collection device, which cannot meet the sound source localization needs of ordinary users. [0004] People often rely on hearing to determine the position of the pronunciation object. There are three main factors in sound localization: [0005] 1. The distance from the sound source; [0006] 2. The m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/22
CPCG01S5/22H04R1/406H04R3/005H04R2499/11G01S3/808G01S5/28H04R1/326
Inventor 王曦
Owner ZTE CORP
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