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Method and device for adjusting directivity of sound acquisition element

An adjustment method and directivity technology, which is applied in the field of sensors, can solve the problems of poor effect and inability to hear voice calls clearly by the remote party, and achieve the effect of improving directivity efficiency

Active Publication Date: 2016-11-23
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the near-end user can only realize the clear conversation when facing the direction of the microphone array directivity. The other party can hear the near-end voice call clearly, even worse than the traditional voice call module without noise reduction processing

Method used

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  • Method and device for adjusting directivity of sound acquisition element
  • Method and device for adjusting directivity of sound acquisition element
  • Method and device for adjusting directivity of sound acquisition element

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Embodiment Construction

[0064] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0065] One of the core ideas of the embodiment of the present invention is that, based on the noise reduction processing, the method of identifying and locating the sound source is added, and the directivity direction of the microphone array is changed by changing the parameters, scanning the range in front of the terminal, and the microphone array will Record at various angles, and calculate the sound pressure level at each angle according to the recorded sound. The direction with the highest sound pressure level is generally the direction where the caller is located, so as to obtain the position direction of the caller, and then set it according to the caller's position. The pointing angle of the microphone array directivity achi...

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Abstract

Embodiments of the present invention provide a method and device for directivity adjustment of a sound acquisition element, the method comprising: sequentially adjusting the directivity of the sound acquisition element within a preset angle range; under the directivity, searching for a sound source; Judging a sound emission mode according to the sound source; wherein, the sound emission pattern includes a positional relationship of the sound source; adjusting the directivity of the sound acquisition element according to the sound emission pattern. The embodiment of the present invention realizes the self-adaptive adjustment of the directivity of the sound acquisition element, so that the user can make a clear voice call in front of the terminal, and solves the problem that the far-end party cannot hear the near-end voice call clearly when the user is not in the directivity direction of the sound acquisition element problem, improving the directivity efficiency of the sound acquisition element.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a method for adjusting the directivity of a sound acquiring element and a device for adjusting the directivity of the sound acquiring element. Background technique [0002] With the rapid development of science and technology, in order to meet the further demands of users for the quality of life, various terminals have grown rapidly and become widely popular. [0003] Taking TV as an example, with the rapid development of TV triple network integration, Internet TV is more and more widely used in people's life, and TVs are equipped with voice call modules for Internet calls. more common. [0004] Realizing Internet voice calls on the TV is different from Internet calls on the computer. The distance between the user and the TV is relatively far, and the distance from the voice call module is relatively long. Due to the insufficient signal-to-noise ratio, it is easy to be affected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/32
Inventor 黄维财
Owner HISENSE VISUAL TECH CO LTD
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