Data processing method and system, computer system and computer readable medium
A technology for data processing and calculation results, applied in the field of data processing, can solve problems such as low precision, no solution proposed, and unsuitable planar microphone array, etc., to improve sound enhancement or suppression, improve calculation accuracy, and reduce calculation amount Effect
Active Publication Date: 2019-07-02
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 concept 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 otherw...
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The invention provides a data processing method for a microphone array. wherein the microphones in the microphone array are arranged on the same plane; the method comprises the steps that a position vector of at least one microphone in a microphone array is acquired, and the position vector of the at least one microphone is a vector from the sphere center position of a hemisphere model matched with the spatial layout of each microphone in the microphone array to the corresponding microphone position; obtaining a wave surface vector, the wave surface vector being a vector from a sound source position to a sphere center position of the hemisphere model; and determining a time delay of the microphone position of the at least one microphone relative to the sphere center position of the hemisphere model based on the position vector and the wave surface vector of the at least one microphone. In addition, the invention also provides a data processing system for the 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