Sound source orientation method, device and system

A directional system and sound source technology, applied in the field of acoustic signal processing, can solve the problems of inability to orientate in three-dimensional space, low directional accuracy, and slow response speed.

Active Publication Date: 2019-11-05
西安声必捷信息科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The embodiments of the present disclosure provide a sound source orientation method, device, and system, which can solve the problems of slow response speed, low orientation accuracy and inability to perform three-dimensional space orientation based on plane arrays, especially circular array orientations.

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  • Sound source orientation method, device and system
  • Sound source orientation method, device and system

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Embodiment Construction

[0083] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0084] An embodiment of the present disclosure provides a sound source orientation method, such as figure 1 As shown, the sound source orientation method includes the following steps:

[0085] Step 101, obtaining the delay estimation of each group of microphones in M ​​groups of microphones Among them, M≥2, 1≤m≤M, each group includes two microphones;

[0086] figure 2 is a flow c...

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Abstract

The invention provides a sound source orientation method, device and system, and relates to the technical field of sound signal processing. The method comprises the steps of acquiring the time delay estimation of each group of microphones of M groups of microphones, wherein M is larger than or equal to 2, m is larger than or equal to 1 and smaller than or equal to M, and each group of microphonescomprises two microphones; respectively calculating a relative horizontal angle of a sound source relative to each group of microphones according to the time delay estimation of each group of microphones, performing coordinate transformation on the relative horizontal angle of each group of microphones, and transforming the relative horizontal angle to a preset coordinate system to obtain a coordinate transformation horizontal angle phi m; and calculating an estimated horizontal angle according to the transformation horizontal angle phi m and the time delay estimation and a first formula.

Description

technical field [0001] The present disclosure relates to the field of acoustic signal processing, and in particular, to a sound source orientation method, device and system. Background technique [0002] With the continuous development and application of artificial intelligence technology, traditional microphones will be replaced by microphone arrays. The microphone array can clearly pick up far-field voice signals, filter ambient noise, and even extract target sounds from noisy environments. Compared with traditional microphones, the biggest advantage of microphone arrays is that they make full use of the spatial information of the signal, so as to obtain high-quality speech enhancement effects. [0003] In speech enhancement based on microphone array, sound source orientation plays a pivotal role. Fast and precise sound source orientation is a prerequisite for high-quality speech enhancement results. Orientation accuracy and tracking speed will directly determine the pr...

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Application Information

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IPC IPC(8): H04R1/32H04R1/08G06F17/18G01S5/22
CPCG01S5/22G06F17/18H04R1/083H04R1/326
Inventor 聂玮奇季经伟刘博洋
Owner 西安声必捷信息科技有限公司
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