Data processing method and system thereof, computer system and computer readable medium
A data processing and microphone technology, applied in the field of data processing, can solve the problems of increasing the workload of the time delay estimation method of the planar microphone array, not applicable to the planar microphone array, and no solution is proposed, so as to reduce the accuracy of the estimation result is not high , Reduce the calculation workload and reduce the effect of calculation
Active Publication Date: 2021-12-14
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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[0003] In the process of implementing the concept of the present disclosure, the inventors found that there are at least the following problems in the related art: the time delay estimation is closely related to the spatial layout of the microphones in the microphone array, and the methods for calculating the time delay of microphone arrays with different layouts are also quite different. The microphone array time delay estimation method suitable for manyyears open source projects is not suitable for planar microphone arrays because of the need to establish a global model, because building a global model will increase the workload of the time delay estimation method for planar microphone arrays, and the estimation accuracy not tall
[0004]
For the above-mentioned problems in related technologies, no effective solution has been proposed at present
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[0037] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.
[0038] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.
[0039] All terms (including technical and scientific terms) used herein have the meaning commonly understood by one of ordinary skill in the art, unless other...
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The present disclosure provides a data processing method for a microphone array, wherein each microphone in the microphone array is arranged on the same plane, and the method includes: acquiring a position vector of at least one microphone in the microphone array, wherein the position vector of at least one microphone The position vector is a vector from the center position of the hemispherical model that matches the spatial layout of each microphone in the microphone array to the corresponding microphone position; the wavefront vector is obtained, where the wavefront vector is the sphere from the sound source position to the hemispherical model a centroid position vector; and based on the position vector of the at least one microphone and the wavefront vector, determining a time delay of the microphone position of the at least one microphone relative to the centroid position of the hemispherical model. In addition, the present disclosure also provides a data processing system for a microphone array, a computer system, and a computer-readable medium.
Description
technical field [0001] The present disclosure relates to the field of data processing, and more particularly, to a data processing method for a microphone array, a system thereof, a computer system, and a computer-readable medium. Background technique [0002] For any two microphones in the microphone array, the signals of the two microphones are coupled into one signal, that is, a receiving area is formed directly in front of the two microphones, thereby reducing the lateral sound collection effect of the two microphones. A model that matches the spatial layout of the microphones in the microphone array can be established, and the time delay table can be established by calculating the time difference between the different microphones corresponding to the arrival model of the measured sound source, that is, the delay estimation, so as to realize the positioning of the sound source . For example, for the microphone array composed of microphones located at the eight vertices ...
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IPC IPC(8): H04S3/00H04R3/04
CPCH04S3/004H04R3/04H04R2430/20
Inventor 杨楠陈宇
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD