CN2927502Y - Device for automatically adjusting audio-frequency and volume by environmental noise - Google Patents
Device for automatically adjusting audio-frequency and volume by environmental noise Download PDFInfo
- Publication number
- CN2927502Y CN2927502Y CN 200620026560 CN200620026560U CN2927502Y CN 2927502 Y CN2927502 Y CN 2927502Y CN 200620026560 CN200620026560 CN 200620026560 CN 200620026560 U CN200620026560 U CN 200620026560U CN 2927502 Y CN2927502 Y CN 2927502Y
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- environmental noise
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Abstract
The utility model discloses an device which can automatically adjustment output volume of the audio signal in accordance with environmental noise in order to provide an audio signal which can always, according to the surrounding environment noise, maintain a certain margin between the audio signal output size and environmental noise so that consumers in any environment can clearly hear the audio signal output. The surrounding environment noise collector through an AD converter connected with the micro-controller, product default audio output through the AD converter connected with the stated microcontrollers and microcontroller in connection with the multiplier. The utility model is easy to use and open a device, can automatically adjust output volume of the audio signal in accordance with environmental noise so as to avoid excessive noise due to environmental impact hearing results and avoid the trouble of conducting continuous adjustment in accordance with the changing environment.
Description
Technical field
The utility model relate to a kind of can according to around environmental noise, make the size of output audio signal and environmental noise remain the certain device of difference.
Background technology
Continuous development along with science and technology, increasing audio and video equipment enters into huge numbers of families, simultaneously along with the improving constantly of people's level of consumption and demand layer, the consumer not only function application demand to audio and video equipment is more and more higher, and more and more higher to the demand of product with hommization.The consumer is more prone to convenient simple and direct product.At present, the volume adjustment of product that has audio output function is all by manually finishing, and the user can not hear the sound that audio frequency is exported according to the volume of the artificial adjustment audio frequency output of the noise of surrounding environment to the user.When environment constantly changes, need constantly adjust, use inconvenient.
The utility model content
The utility model is in order to overcome weak point of the prior art, provide a kind of can according to around environmental noise, it is certain to make the size of output audio signal and environmental noise remain difference, make the consumer can clearly hear the audio signal of output in any environment, easy to use can regulate the device of the audio signal volume of output automatically according to environmental noise.
The utility model is achieved through the following technical solutions:
A kind of can it is characterized in that according to the device that environmental noise is regulated the audio signal volume of output automatically, the ambient noise collector is connected with microcontroller by AD converter, the audio output of product acquiescence is connected with described microcontroller by AD converter, and described microcontroller is connected with multiplier.
The utlity model has following technique effect:
Device of the present utility model can be regulated the size of audio frequency output automatically according to the environmental noise of outside ambient, has avoided influencing auditory effect because of environmental noise is excessive, avoids the user constantly to change according to environment simultaneously and constantly adjusts, and is easy to use.
Description of drawings
Fig. 1 is for regulating the manipulated or operated apparatus of the audio signal volume of output according to environmental noise automatically;
Fig. 2 is the circuit diagram of specific embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Fig. 1 is the manipulated or operated apparatus that can regulate the audio signal volume of output according to environmental noise automatically,
This circuit diagram is made up of ambient noise collector, microcontroller and multiplier, the ambient noise collector is connected with microcontroller by AD converter, the audio output of product acquiescence is connected with described microcontroller by AD converter, and described microcontroller is connected with multiplier.Can two-way AD converter and microcontroller is integrated.
Microcontroller of the present utility model adopts two-way AD translation function is integrated in P89LPC904 type microcontroller in the microcontroller (MCU), and multiplier adopts AD532, and concrete circuit connecting relation as shown in Figure 2.The user sets the size of output audio according to the needs of oneself when bringing into use this product, and this value storage in MCU (P89LPC904), this parameter that this product will be set with the user in output audio is so carried out the adjusting of output audio size as foundation.At first utilizing environmental noise collector (Mic) that the noise level of surrounding environment is write down is transferred on MCU (P89LPC904) 7pin simultaneously, the output of product default audio is connected with the 2pin of MCU (P89LPC904), owing among the MCU (P89LPC904) two-way ADC is arranged, noise and output audio can be carried out the AD conversion respectively, according to the 4pin output square wave of parameter of user by MCU (P89LPC904), the duty ratio of this square wave is decided by environmental noise and output audio and parameter of user, this square wave output back is connected with the 13pin of multiplier AD532, difference according to duty ratio, adjust the voltage of multiplier AD532 13pin, because the audio frequency size of final output is to export by multiplier AD532, it is the back output of multiplying each other of voltage with output voltage and 13pin, so can reach the adjustment of final output size by the adjustment of 13pin voltage.When ambient noise is bigger, by adjusting the size of the audio output signal that can improve product; When if ambient noise is less, by adjusting the size of the audio output signal that can reduce product.So just can make under user's what condition in office and can hear audio frequency output clearly.
Although a kind ofly can carry out special description to disclosed relating to according to the device that environmental noise is regulated the audio signal volume of output automatically with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (1)
1, a kind of can it is characterized in that according to the device that environmental noise is regulated the audio signal volume of output automatically, the ambient noise collector is connected with microcontroller by AD converter, the audio output of product acquiescence is connected with described microcontroller by AD converter, and described microcontroller is connected with multiplier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026560 CN2927502Y (en) | 2006-06-28 | 2006-06-28 | Device for automatically adjusting audio-frequency and volume by environmental noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026560 CN2927502Y (en) | 2006-06-28 | 2006-06-28 | Device for automatically adjusting audio-frequency and volume by environmental noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927502Y true CN2927502Y (en) | 2007-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620026560 Expired - Fee Related CN2927502Y (en) | 2006-06-28 | 2006-06-28 | Device for automatically adjusting audio-frequency and volume by environmental noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927502Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369805B (en) * | 2008-09-28 | 2010-08-25 | 西北工业大学 | Method for self-adjusting sound volume of sound source equipment in pervasive computation surroundings |
| CN101997498A (en) * | 2009-08-27 | 2011-03-30 | 北京宏景捷讯网络技术股份有限公司 | Volume adjusting method and device |
| CN104202467A (en) * | 2014-08-21 | 2014-12-10 | 青岛蓝图文化传播有限公司市南分公司 | Volume control system |
| CN106131751A (en) * | 2016-08-31 | 2016-11-16 | 深圳市麦吉通科技有限公司 | Audio-frequency processing method and audio output device |
| CN116095563A (en) * | 2023-03-06 | 2023-05-09 | 中山亿联智能科技有限公司 | Automatic adjusting audio output system and method based on environmental noise |
-
2006
- 2006-06-28 CN CN 200620026560 patent/CN2927502Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369805B (en) * | 2008-09-28 | 2010-08-25 | 西北工业大学 | Method for self-adjusting sound volume of sound source equipment in pervasive computation surroundings |
| CN101997498A (en) * | 2009-08-27 | 2011-03-30 | 北京宏景捷讯网络技术股份有限公司 | Volume adjusting method and device |
| CN104202467A (en) * | 2014-08-21 | 2014-12-10 | 青岛蓝图文化传播有限公司市南分公司 | Volume control system |
| CN106131751A (en) * | 2016-08-31 | 2016-11-16 | 深圳市麦吉通科技有限公司 | Audio-frequency processing method and audio output device |
| CN106131751B (en) * | 2016-08-31 | 2019-09-13 | 深圳市麦吉通科技有限公司 | Audio-frequency processing method and audio output device |
| CN116095563A (en) * | 2023-03-06 | 2023-05-09 | 中山亿联智能科技有限公司 | Automatic adjusting audio output system and method based on environmental noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |