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Selective denoising device and denoising method thereof

A selective and mode-selective technology, applied in the direction of transducer circuits, sensors, electrical components, etc., can solve problems such as the inability to effectively extract useful sound signals, and achieve the effects of protecting hearing health, eliminating noise, and ensuring stability

Inactive Publication Date: 2013-10-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The primary purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a selective denoising device, which can overcome the disadvantages that ordinary earplugs can only denoise all sound signals and cannot effectively extract useful sound signals

Method used

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  • Selective denoising device and denoising method thereof
  • Selective denoising device and denoising method thereof

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Embodiment

[0029] Such as figure 1 As shown, it is the selective noise elimination device of the present invention, wherein, 1 is a microphone acquisition sensor, 2 is a knob for retaining a threshold signal, 3 is a knob for eliminating a threshold signal, 4 is a mode selection knob, 5 is a knob for adjusting signal amplitude, 6 7 is a low-voltage foam high-elastic polyester soft shell, 8 is a battery, 9 is a digital signal processing chip, 10 is an active core, and 11 is a loudspeaker. The selective noise elimination device of the present invention includes a low-voltage Foam high elastic polyester material soft shell 7, adjustable range active movement 10 with digital signal processing chip 9. The shell is a soft shell made of low-pressure foam high-elastic polyester material, or it can be polyvinyl chloride foam plastic or silica gel with slow rebound characteristics.

[0030] The above-mentioned selective noise canceling earplug device also includes a microphone sensor, a built-in b...

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Abstract

The invention discloses a selective denoising device which comprises a housing 7 and an active movement 10, wherein a battery 8 and a digital signal processing chip 9 are arranged inside the active movement. The invention also discloses a denoising method for the selective denoising device. The denoising method comprises the following steps: step 1, a microphone signal acquisition sensor 1 collects information and transforms the information into a digital signal to be transmitted to the active movement 10; step 2, a gear selection knob 6 and a mode selection knob 4 are adjusted; step 3, the active movement 10 determines a selected mode and a threshold range, processes a received digital signal, and transmits a processed digital signal to a speaker 11 ;and step 4, a speaker 11 receives the digital signal and transforms the digital signal into an analog signal, and the analog signal is transmitted to human inner ears. The denoising device and denoising method of the invention have advantages of being beautiful, light, simple in operation and free of the signal distortion, and the like.

Description

technical field [0001] The invention relates to a noise elimination technology, in particular to a selective noise elimination device and a noise elimination method thereof. Background technique [0002] Noise is random, intermittent, and statistically irregular in amplitude and frequency. The most direct harm of noise to the human body is hearing damage, including temporary auditory displacement and noise deafness. In general, the way to reduce noise damage is to wear anti-noise earplugs. General anti-noise earplugs are made of silica gel or low-pressure foam material, high-elastic polyester material, and after being inserted into the ear canal, they are closely connected with the external auditory canal to isolate the sound from entering the ear drum and achieve the purpose of sound insulation. The sound insulation effect is between 20-40 decibels. However, wearing anti-noise earplugs can achieve the effect of reducing noise, but it reduces the amplitude value of all so...

Claims

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Application Information

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IPC IPC(8): H04R3/00
Inventor 刘晓徐向民范伟龙
Owner SOUTH CHINA UNIV OF TECH
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