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A method and a calibration system for dual microphone phase measurement and calibration

A dual-microphone, phase measurement technology, applied in the field of microphones, can solve the problem of unable to continue the call, and achieve the best sound pickup effect.

Inactive Publication Date: 2018-12-28
SHENZHEN RF LINK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If in a noisy environment, other noises are also collected while collecting the target sound, if the decibel of the noise is greater than the decibel of the target sound to be collected, subsequent calls will be unable to continue

Method used

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  • A method and a calibration system for dual microphone phase measurement and calibration
  • A method and a calibration system for dual microphone phase measurement and calibration
  • A method and a calibration system for dual microphone phase measurement and calibration

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] Microphones are mainly used to pick up audio signals in electronic equipment and consumer electronics products. The microphones all have omnidirectional pickup response, which means they respond equally to sound from all directions. With the continuous in-depth research of array microphones, array microphones are becoming more and more popular in the market. Multiple microphones can be configured in an array to form a directional response or beam pattern. Beamforming microphone arrays can be designed to be more sensitive to sounds coming from one or more specific directions.

[0043] In d...

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Abstract

The invention provides a dual microphone phase measurement correction method and a correction system. The method comprises the following steps: scanning a plurality of frequency points by using a testaudio frequency to grasp the data of two microphones; converting the data of the two microphones into a beamforming map; the software algorithm of the dual microphone array is debugged and optimizedaccording to the beam forming diagram, so that the dual microphone array achieves the best sound pickup effect.

Description

technical field [0001] The invention belongs to the technical field of microphones, and in particular relates to a method and a correction system for phase measurement and correction of two microphones. Background technique [0002] In video conferencing, intelligent robots, hearing aids, smart home appliances, communications, smart toys, vehicle-mounted fields, and simultaneous translation terminals, it is necessary to collect sound signals. Sound collection is extremely important, and the quality of sound signal collection directly affects subsequent communication. If in a noisy environment, other noises are also collected while collecting the target sound, if the decibel of the noise is greater than the decibel of the target sound to be collected, subsequent calls cannot continue. Therefore, it is particularly important how the microphone should perform the downsampling and voice enhancement when collecting the target sound. Contents of the invention [0003] The techn...

Claims

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/00
Inventor 吴叶富陈军宇谢海波
Owner SHENZHEN RF LINK TECH CO LTD
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