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Hearing protection, method and sound output device

A sound output device and sound technology, applied in the direction of amplification control, earpiece/headphone accessories, sensors, etc., can solve the problems of users' hearing damage, loudness discomfort level, and lack of hearing protection functions, and achieve the effect of hearing protection

Inactive Publication Date: 2007-08-29
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a physiological hearing limit for users, that is, the Loudness Discomfort Level (LDL). If the user's ears are exposed to an environment exceeding this loudness discomfort level for a long time, it will cause damage to the user's hearing.
Wire-controlled earphones currently on the market do not have the function of hearing protection

Method used

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  • Hearing protection, method and sound output device
  • Hearing protection, method and sound output device
  • Hearing protection, method and sound output device

Examples

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Embodiment Construction

[0014] FIG. 1 is a block diagram of a sound output device having a hearing protection function according to an embodiment of the present invention. The sound output device 10 includes an interface unit 12 , a hearing protection system 13 , a sound sensor 14 and a digital-to-analog converter 15 . The sound output device 10 receives a digital sound signal output by a sound signal source 11 through the interface unit 12, and sends the digital sound signal to the hearing protection system 13 and the digital-to-analog converter 15 respectively; wherein the sound signal source 11 can be an audio reproduction device, a wireless signal playback device, a television or a microphone, etc. The hearing protection system 13 calculates the audio energy value of the digital sound signal, and when the audio energy value reaches a preset energy value, automatically lowers the volume or generates a visual or auditory warning signal to protect the user's hearing from damage. The digital-to-anal...

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Abstract

The method includes steps: receiving digital sound signal from a source of sound signal; sampling the digital sound signal to obtain multiple amplitude values; calculating an acoustic energy value within a prearranged time period by using multiple amplitude values as a parameter; when the acoustic energy value reaches to a prearranged energy value, generating a hearing protection signal; automatic adjusting downwards current gain value or generating visual or aural caution signal in order to respond the hearing protection signal. The invention also discloses hearing protection system, and sound output device. When acoustic energy value reaches to the value user can endure, the protection system adjusts downwards the current gain value or generates visual or aural caution signal automatically in order to protect hearing ability of user.

Description

【Technical field】 [0001] The present invention relates to a system, method and sound output device for hearing protection, in particular to a system, method and sound output device with hearing protection function for protecting hearing by limiting sound energy value. 【Background technique】 [0002] With the development of digital products, handheld audio playback devices are widely used. Handheld devices with audio playback functions include radios, MP3s, PDAs, and mobile phones. In order not to disturb others when enjoying music or radio programs, users usually use earphones to listen. In the process of enjoying music, users often need to perform the following operations: play, stop playing, previous song, next song, and adjust volume. However, it is not convenient for users to directly operate on the audio playback device. Wired earphones solve the problem. above question. [0003] When enjoying fast-paced music such as rock music, the user tends to turn up the volume v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/20
CPCH04R1/1091H04R1/1041H04R2430/01
Inventor 丁荣华蒋浩良谢冠宏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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