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Anti-howling device and microphone using the device

A microphone and anti-howling technology, which is applied in the field of anti-howling devices and microphones, can solve the problems of high cost, high price, unfavorable promotion and use, etc., and achieve the effect of simple structure and low price

Active Publication Date: 2019-04-16
SHENZHEN TRUSDA INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above two solutions for eliminating howling have the same disadvantage: the structure is complex, and both of them use more complicated circuits to eliminate howling
In addition, it is expensive, whether it is a DSP module or a wet phase conversion circuit, the cost is relatively high, which is not conducive to popularization and use

Method used

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  • Anti-howling device and microphone using the device
  • Anti-howling device and microphone using the device
  • Anti-howling device and microphone using the device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0032] see figure 1 and image 3 As shown, the pre...

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Abstract

The invention relates to the technical field of sound systems, in particular to a howlround-preventing device and a microphone using the same. The howlround-preventing device comprises at least two sound-absorbing layers; the sound-absorbing layers form a cover and coincide; first sound-collecting openings are formed in the sound-absorbing layers respectively and coincide. The microphone comprises the howlround-preventing device and a sound collection device. The sound collection device is arranged in the cover-shaped sound-absorbing layers. By the howlround-preventing device simple in structure and low in cost, the probability of howlround can be reduced effectively.

Description

technical field [0001] The invention relates to the technical field of audio systems, in particular to an anti-howling device and a microphone using the device. Background technique [0002] Sound originates from the vibration of an object, which causes the vibration of the adjacent air to form sound waves, and propagates around in the air medium. In the process of propagation, once the sound hits an obstacle, part of it will be reflected, and then part of it will be reflected to the sound source, that is, an echo is generated. Especially in a relatively closed environment, when the sound is reflected in the closed environment, the echo generated is picked up by the microphone again, and the echo enters the audio system and is amplified again. If the echo and the initial sound have the same phase, the two sounds will be superimposed and strengthened, and the superimposed and strengthened sound will echo to the microphone again, and then be amplified by the audio system, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/08
Inventor 谢湘唐刚周汉鹏
Owner SHENZHEN TRUSDA INDUSTRIAL CO LTD