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Sound source localization method and device

A technology for sound source localization and sound source orientation, which is applied in positioning, measuring devices, orientators for measuring directions, etc., and can solve problems such as sound source localization errors

Active Publication Date: 2018-09-04
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology

[0004] Embodiments of the present invention provide a sound source localization method and device to at least solve the technical problem of sound source localization errors caused by sound reflection in the related art

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  • Sound source localization method and device

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circums...

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Abstract

The invention discloses a sound source localization method and device. The method includes the following steps that: the energy value of multi-frame data in sound waveforms is acquired, wherein the multi-frame data are the data of signal frames corresponding to each sound signal of the sound waveforms; an envelope line slope corresponding to the energy value of the multi-frame data is determined according to a preset calculation mode; whether the envelope line slope is greater than a first preset envelope slope is judged, or whether the envelope line slope is lower than a second preset envelope line slope is judged; when it is judged that the envelope line slope is greater than the first preset envelope slope, a current sound source orientation is determined according to the envelope lineslope; and when it is judged that the envelope line slope is lower than the second preset envelope line slope, it is determined that the sound source orientation does not change. With the sound sourcelocalization method and device of the present invention adopted, the technical problem in the prior art that an error occurs in sound source localization due to sound reflection can be solved.

Description

technical field [0001] The present invention relates to the technical field of sound processing, in particular to a sound source localization method and device. Background technique [0002] In the related art, if it is necessary to locate or orientate the sound source, it generally receives signals from different directions, and then calculates the direction of the sound source according to the signals in each direction, such as setting a sound source detection device in a room, through which The sound source detection device detects signals from all directions. However, this method has great disadvantages. In a relatively closed space, the sound will be reflected, which will cause interference. For example, when the sound source ends, due to the delay of the sound, the reflected sound can still reach the sound. In the detection device, at this time, the sound detection device will consider the location of the reflected sound signal as the sound source direction. At this t...

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Application Information

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IPC IPC(8): G01S5/20G01S3/803
CPCG01S3/8032G01S5/20
Inventor 刘荣
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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