Device for automatically adjusting volume of audio equipment according to frequency of outside sound

An audio equipment and automatic adjustment technology, applied in the direction of amplification control, transducer circuit, sensor, etc., can solve the problems of reducing the user's hearing, inaudible car whistle, and user danger.

Inactive Publication Date: 2011-07-06
SHANGHAI QIBAO HIGH SCHOOL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] In people's daily life, people often wear headphones and listen to music while walking, so that the sound of music in the headphones r

Method used

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  • Device for automatically adjusting volume of audio equipment according to frequency of outside sound
  • Device for automatically adjusting volume of audio equipment according to frequency of outside sound
  • Device for automatically adjusting volume of audio equipment according to frequency of outside sound

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] see figure 1 , the present invention provides a device 100 for automatically adjusting the volume of audio equipment according to the frequency of external sound, including:

[0016] The microphone 130 is used to collect external sound signals. As an embodiment, the microphone 130 is an electret microphone 130 .

[0017] The single-chip microcomputer 110 is connected to the microphone 130 at its input to receive the sound signal collected by the microphone 130, and outputs a volume adjustment control signal when the single-chip microcomputer 110 recognizes that the sound signal exceeds a predetermined frequency.

[0018] The volume adjustment unit 120, its input end is connected to the output end of the single chip microcomputer 110 to receive its output volume adjustment control signal, and its output end is connecte...

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Abstract

The invention discloses a device for automatically adjusting the volume of audio equipment according to the frequency of outside sound, which comprises a mike, a single chip microcomputer and a volume adjusting unit, wherein the mike is used for collecting a signal of the outside sound; the single chip microcomputer is used for receiving the sound signal collected by the mike and outputting a volume adjusting control signal to the volume adjusting unit when the sound signal is identified to exceed the preset frequency; and the output end of the volume adjusting unit is connected with an audio outputting device of the audio equipment to output the adjusted sound signal to the audio equipment. Thus, when detecting that the sound signal collected by the mike is a high-frequency signal, the single chip microcomputer controls the volume adjusting unit to reduce the volume of the playing audio equipment so that a user can hear high-frequency sound to have alertness.

Description

technical field [0001] The invention relates to the field of volume adjustment, in particular to a device for automatically adjusting the volume of audio equipment according to the frequency of external sound. Background technique [0002] In people's daily life, people often wear headphones and listen to music while walking, so that the sound of music in the headphones reduces the user's sense of hearing. When the user crosses the road, the whistle of the car may not be heard clearly, and the danger to the user. Contents of the invention [0003] The purpose of the present invention is to provide a device for automatically adjusting the volume of an audio device according to the frequency of the external sound, which can adjust the volume of the audio device used by the user when the external sound is detected to be high frequency. [0004] The present invention provides a device for automatically adjusting the volume of audio equipment according to the frequency of exte...

Claims

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Application Information

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IPC IPC(8): H04R3/00H03G3/20
Inventor 高俊曾惜
Owner SHANGHAI QIBAO HIGH SCHOOL
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