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An airflow impact noise elimination device of a moving coil type microphone

A technology of impact noise and microphone, which is applied in the field of microphone and audio, and can solve the problems of reducing air impact speed and limited effect

Active Publication Date: 2019-05-03
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is generally a layer of sponge cover on the head of the microphone, which is used to reduce the impact speed of the air and reduce the noise of the microphone spray, but the noise of the microphone spray is only slightly weakened, and the effect is very limited

Method used

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  • An airflow impact noise elimination device of a moving coil type microphone
  • An airflow impact noise elimination device of a moving coil type microphone
  • An airflow impact noise elimination device of a moving coil type microphone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Such as figure 1 Shown, a kind of airflow impact noise elimination device of dynamic microphone, including

[0020] A baffle 1, the baffle 1 is in the shape of an arc surface, and its edge exceeds the outer edge of the head of the adapted microphone 2, so as to prevent the gas exhaled by the user from directly contacting the sound pickup diaphragm of the microphone;

[0021] The sleeve body 3, the sleeve body 3 is a hollow tubular body, which is made of elastic material, the front end of the sleeve body 3 is connected with the concave end surface of the spoiler 1, and the inner wall of the sleeve body 3 is provided with an annular round table 4, The ring-shaped round platform 4 divides the inner cavity of the sleeve body 3 into two parts: the sound pickup cavity 5 and the fixed cavity 6. The part with the baffle plate 1 at one end is the sound pickup cavity 5, and the part with the opening at the other end that can be inserted into the microphone 2 is the fixed cavity. ...

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Abstract

The invention discloses an airflow impact noise elimination device of a moving coil type microphone, which comprises a choke plate and a sleeve body, the flow choking sheet is in an arc surface shape,and the edge of the flow choking sheet exceeds the outer edge of an adaptive microphone head; the sleeve body is a hollow tubular body; the sleeve body is made of an elastic material, the front end part of the sleeve body is connected with the concave end surface of the choke sheet, the inner wall of the sleeve body is provided with an annular circular truncated cone, the annular circular truncated cone divides the inner cavity of the sleeve body into a pickup cavity and a fixed cavity, one end of the annular circular truncated cone is provided with the choke sheet, and the other end is provided with an opening which can be inserted into a microphone; And the pickup cavity wall of the sleeve body is provided with a plurality of through holes for communicating the pickup cavity with outside air. The device is simple in structure, low in cost, convenient to use and capable of effectively preventing the phenomenon of microphone spraying.

Description

technical field [0001] The invention relates to the technical field of microphones in the audio field, in particular to an airflow impact noise elimination device for a dynamic microphone. Background technique [0002] When using a microphone as a sound pickup device, if the user's breath is not properly controlled by the broadcaster or song singer, especially when there is a plosive sound, there will be a strong airflow directly impacting the diaphragm of the sound pickup device microphone, causing the diaphragm to sharply The vibration produces a lot of noise, commonly known as "spray wheat". There is generally a layer of sponge cover on the head of the microphone, which is used to reduce the impact velocity of the air and reduce the microphone spray noise, but the microphone spray noise is only slightly weakened, and the effect is very limited. Spray noise is caused by the direct impact of strong air flow on the sound pickup diaphragm of the microphone, and the air flow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08
CPCY02T90/00
Inventor 肖吉军欧淑周清华冉萍
Owner GUILIN UNIV OF ELECTRONIC TECH
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