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Sound source orientation method, device and electronic equipment

A technology of sound source and sound source signal, which is applied to systems for determining direction or offset, direction finders using ultrasonic/sonic/infrasonic waves, sound-generating instruments, etc., which can solve the problems of high system complexity and unfavorable accurate orientation , to achieve the effect of high-precision complexity and low-complexity

Active Publication Date: 2020-07-24
NANJING HORIZON ROBOTICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in addition to the accuracy of sound source orientation, system complexity is also a factor that needs to be considered
If the system complexity is too high, it is obviously not conducive to the realization of precise orientation

Method used

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  • Sound source orientation method, device and electronic equipment
  • Sound source orientation method, device and electronic equipment
  • Sound source orientation method, device and electronic equipment

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Embodiment Construction

[0014] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

[0015] Application overview

[0016] As mentioned above, when performing sound source orientation based on microphone arrays, the following two methods are mainly used:

[0017] First, directional technology based on delay information, such as TDOA (Time Difference of Arrival: Time Difference of Arrival) algorithm, which calculates the sound source direction according to the delay information of the audio signal received by each microphone;

[0018] Second, eigenvector-based orientation technology, such as the MUSIC (Multiple Signal Classification: multipl...

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Abstract

A sound source orientation method and apparatus and an electronic device are disclosed. The method includes the steps of acquiring a sound source orientation template, the sound source orientation template being associated with a plurality of fixed filters, receiving a sound source signal to be measured; filtering the sound source signal to be measured through the plurality of fixed filters to obtain a first frequency domain parameter of the filtered sound source signal to be measured; and matching the first frequency domain parameter with the sound source orientation template to orient the sound source signal to be measured. Therefore, a high-precision and low-complexity sound source orientation operation can be realized.

Description

technical field [0001] The present application relates to the field of audio technology, and more specifically, relates to a method for directing a sound source, a device for directing a sound source, electronic equipment, and a computer-readable storage medium. Background technique [0002] Microphone array is the basic technology of far-field speech enhancement, and the most important part of this technology is sound source orientation. Generally, when doing array speech enhancement, precise orientation is required in advance, so as to enhance the speech in the desired direction according to the orientation information. In addition, in addition to the accuracy of sound source orientation, system complexity is also a factor that needs to be considered. If the system complexity is too high, it is obviously not conducive to the realization of precise orientation. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S3/802G10L21/0216G10K11/34
CPCG01S3/802G10K11/343G10L21/0216G10L2021/02166
Inventor 朱长宝
Owner NANJING HORIZON ROBOTICS TECH CO LTD