CN107959912A - A kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer - Google Patents
A kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer Download PDFInfo
- Publication number
- CN107959912A CN107959912A CN201711161408.7A CN201711161408A CN107959912A CN 107959912 A CN107959912 A CN 107959912A CN 201711161408 A CN201711161408 A CN 201711161408A CN 107959912 A CN107959912 A CN 107959912A
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- CN
- China
- Prior art keywords
- noise
- sound box
- module
- signal
- speaker
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
Abstract
The present invention provides a kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer, it is characterised in that including noise collection module, control centre's module, power module and the loudspeaker module inside speaker.The present invention not only has the function of noise reducing sound box, can effectively reduce ambient noise when user watches movie and video programs or listens to music, become apparent from sounding interesting to listen to, allow user to have finer recreation experience；But also there is noise reducer, provide a comfortable environment of peace and quiet to the user, allow user to provide a comfortable sleep environment and academic environment to the user after opening the function of noise reducer when usually resting or learning.
Description
Technical field
There is the multi-functional of two kinds of noise reducing sound box and noise reducer based on active noise reduction techniques the present invention relates to a kind of
Speaker.
Background technology
With the development of society, requirement of the people for quality of life is higher and higher, but it is often various around us
Noise is surrounded, even if door and window closes the influence for also being difficult to solve noise at home, it is glad at home that noise not only influences people
The effect of movie and video programs and music is appreciated, more seriously can also influence study and the sleep quality of people, is brought to people's life
Greatly interference, therefore there is an urgent need to the equipment that can effectively reduce noise, to solve, grass in life is next to be stranded people
Disturb.
The current technology for having had many noise reductions, their each have their own features are raw that can reduce noise on human to a certain degree
Influence living, what application was more at present is passive physics noise reduction technology, its cardinal principle is come by using special material
Reduce or absorption of noise, with reduce noise by so as to fulfill the purpose of noise reduction；Another noise reduction skill currently risen
Art is active noise reduction techniques, its principle is by sound collector acquisition noise, then by controller come controlling loudspeaker
The reverse sound wave equal with ambient noise is produced, is cancelled out each other by the two to realize noise reduction purpose.
Although mesh has multiple various material to realize noise reduction to a certain extent, since floor space is too big, material
Cost it is higher, therefore it is difficult to realize by house surrounding with special material come noise reduction；And the big portion of current active noise reduction techniques
Point be applied to earphone, such as BOSE and PHITEK companies, but such earphone also can only small range reduction noise, and it is long when
Between wear earphone can to human body produce adverse reaction.
With the development of science and technology, active noise reduction techniques start to march automotive field.The one of many automobile production manufacturer productions at present
A little vehicles, are arranged in pairs or groups by vehicle audio and active noise reduction system, can be to reduce engine noise to a certain extent to in-car
The influence of passenger, so as to provide environment of comfortably riding to the user.
The content of the invention
It is applied to indoor more work(with two kinds of noise reducing sound box and noise reducer the object of the present invention is to provide a kind of
Can speaker.
In order to achieve the above object, the technical scheme is that providing one kind has the function of two kinds of noise reducing sound box and noise reducer
Multifunctional sound box, it is characterised in that including noise collection module, control centre's module, power module and inside speaker
Loudspeaker module, wherein：
Power module, for providing operating voltage for other each modules；
Noise collection module, for collecting the noise among environment；
Control centre's module, the noise collected to noise collection module are analyzed, according to analysis result generation noise suppressed
Control signal, meanwhile, control centre's module is additionally operable to control speaker；
Loudspeaker module, for the noise suppressed control signal received, produces the sound opposite with the signal frequency of noise, from
And suppress noise.
Preferably, the noise collection module includes feed-forward noise collection microphone and feedback noise collection microphone, wherein：
Feed-forward noise collects microphone, for obtaining the noise information of speaker surrounding environment；
Feedback noise collects microphone, for obtaining the noise information around speaker internal loudspeaker.
Preferably, the processing center module includes system switching unit, function selection unit, and noise signal analysis unit, drive
Moving cell, wherein：
Switch element is used for, and controls the on and off of speaker；
Function selection unit, for being made choice to noise reducing sound box pattern and noise reducer pattern；
Noise signal analysis unit, the noise arrived for analyzing the noise collection module collection, obtains the feature of noise signal；
Driving unit, for sending drive signal to loudspeaker module.
Preferably, the power module is depressured by DC/DC circuits and provides operating voltage for other each modules.
As a result of above-mentioned technical solution, compared with prior art, the present invention having the following advantages that and good effect：This
Invention not only has the function of noise reducing sound box, can effectively reduce week when user watches movie and video programs or listens to music
Noise is enclosed, becomes apparent from sounding interesting to listen to, allows user to have finer recreation experience；But also the work(with noise reducer
Can, provide a comfortable environment of peace and quiet to the user, user is allowed when usually resting or learning, after the function of opening noise reducer
A comfortable sleep environment and academic environment can be provided to the user.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the schematic diagram that noise reducing sound box pattern is operated in the multifunctional sound box；
Fig. 3 is the schematic diagram that noise reducer pattern is operated in the multifunctional sound box.
Embodiment
With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Scope.
Embodiments of the present invention are related to provide a kind of has two kinds of work(of noise reducing sound box and noise reducer based on active noise reduction techniques
Can multifunctional sound box, including noise collection module, control centre's module, power module and loudspeaker module, the noise
Collection module is responsible for collecting the noise among environment；Control centre's module is used to control speaker concrete function, while to adopting
The control signal of loudspeaker is analyzed and generated to the noise collected；The whole multifunctional sound box of electric power source pair of module provides electricity
Source；The loudspeaker module makes respective response after receiving the signal of control centre's module.The present invention can not only allow speaker to have
There is active noise reduction function, become apparent from sounding interesting to listen to, and have the function of to carry out noise reduction process to surrounding environment, carried for user
For a comfortable environment of peace and quiet.
The multifunctional sound box with two kinds of noise reducing sound box and noise reducer based on active noise reduction techniques, its feature exist
In the noise collection module includes feed-forward noise and collects microphone and feedback noise collection microphone；The feed-forward noise is received
Collection microphone is used for the noise information for obtaining speaker surrounding environment；Feedback noise collects microphone and is used to obtain to raise one's voice inside speaker
Noise information around device.
The multifunctional sound box with two kinds of noise reducing sound box and noise reducer based on active noise reduction techniques, its feature exist
In the processing center module includes system switching unit, menu, noise signal analysis unit, driving unit；It is described
Switch element is used for the on and off for controlling multifunctional sound box；The function selection unit is used for the noise reducing sound box to multifunctional sound box
Pattern makes choice with noise reducer pattern, and the noise signal analysis unit is used to analyze the noise being collected into, and obtains noise letter
Number feature；The driving unit is used to send drive signal to loudspeaker.
The multifunctional sound box with two kinds of noise reducing sound box and noise reducer based on active noise reduction techniques, its feature exist
In the power module is depressured by DC/DC circuits and provides power supply for multifunctional sound box.
More work(speakers with two kinds of noise reducing sound box and noise reducer based on active noise reduction techniques, its feature exist
In the loudspeaker module makes respective response after receiving the signal of control centre's module.
Further illustrated below by two kinds of embodiments of noise reducing sound box pattern and noise reducer pattern of the multifunctional sound box
The present invention.
As shown in Fig. 2, it is operated in noise reducing sound box pattern for the multifunctional sound box.When speaker plays movie and video programs or music
Wait, its noise collection mould feedforward wheat in the block can collect the noise signal in surrounding environment, this noise signal is sent to PCB afterwards
Control centre's module, control centre analyze noise signal and send corresponding control signal to loudspeaker module, raised one's voice
The control signal sent according to control centre's module is generated the signal opposite with noise signal and is used for offsetting surrounding environment by device
Noise；At the same time feedback wheat can also collect the noise signal in speaker near loudspeaker, and be sent to PCB control centres mould
Block, control centre analyzes noise signal and sends corresponding control signal will be according to control to loudspeaker module, loudspeaker
The control signal that center module processed is sent generates the signal opposite with noise signal and is used for offsetting making an uproar near loudspeaker in speaker
Sound, is not intended to hear since control centre can analyze the signal of specific frequency so can only eliminate us in the middle herein
Noise signal, and movie and video programs or music signal are not influenced, can ensure the normal work of speaker.
As shown in figure 3, it is operated in denoiser pattern for the multifunctional sound box.The multifunctional sound box is only used for eliminating noise at this time,
There is no playing function, its noise collection mould feedforward wheat in the block can collect the noise signal in surrounding environment, afterwards by this noise
Signal is sent to PCB control centres module, and control centre analyzes noise signal and sends corresponding control signal to raising one's voice
The control signal sent according to control centre's module is generated the signal opposite with noise signal and is used for offsetting by device module, loudspeaker
The noise of surrounding environment；At the same time feedback wheat can also collect the noise signal in speaker near loudspeaker, and be sent to PCB
Control centre's module, control centre analyze noise signal and send corresponding control signal to loudspeaker module, raised one's voice
The control signal sent according to control centre's module is generated the signal opposite with noise signal and is used for offsetting in speaker raising one's voice by device
Noise near device, a comfortable study and rest environment can be provided by this pattern for us.
Compared it is not difficult to find that the present invention is compared to current existing noise cancellation technology, can be on the basis of these original technologies
Optimize further above, more preferable experience is brought for user.Making an uproar for surrounding environment can effectively be reduced by noise reducing sound box pattern
Sound appreciates user the influence of movie and video programs or music, becomes apparent from sounding interesting to listen to, and more preferable experience is brought for user, and
The noise of surrounding environment can be eliminated when without the playing function of speaker by noise reducer pattern, provide one to the user
A comfortable environment of peace and quiet, and the present invention can make full use of the time more than spare time of speaker, greatly improve in our lives
The utility value of speaker.
Claims (4)
1. a kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer, it is characterised in that including noise collection mould
Block, control centre's module, power module and the loudspeaker module inside speaker, wherein：
Power module, for providing operating voltage for other each modules；
Noise collection module, for collecting the noise among environment；
Control centre's module, the noise collected to noise collection module are analyzed, according to analysis result generation noise suppressed
Control signal, meanwhile, control centre's module is additionally operable to control speaker；
Loudspeaker module, for the noise suppressed control signal received, produces the sound opposite with the signal frequency of noise, from
And suppress noise.
2. a kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer according to claim 1, its feature
It is, it is characterised in that the noise collection module includes feed-forward noise and collects microphone and feedback noise collection microphone, its
In：
Feed-forward noise collects microphone, for obtaining the noise information of speaker surrounding environment；
Feedback noise collects microphone, for obtaining the noise information around speaker internal loudspeaker.
3. a kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer according to claim 1, its feature
Be, the processing center module include system switching unit, function selection unit, noise signal analysis unit, driving unit,
Wherein：
Switch element is used for, and controls the on and off of speaker；
Function selection unit, for being made choice to noise reducing sound box pattern and noise reducer pattern；
Noise signal analysis unit, the noise arrived for analyzing the noise collection module collection, obtains the feature of noise signal；
Driving unit, for sending drive signal to loudspeaker module.
4. a kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer, its feature exist according to claim 1
In the power module is depressured by DC/DC circuits and provides operating voltage for other each modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161408.7A CN107959912A (en) | 2017-11-20 | 2017-11-20 | A kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161408.7A CN107959912A (en) | 2017-11-20 | 2017-11-20 | A kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107959912A true CN107959912A (en) | 2018-04-24 |
Family
ID=61965010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711161408.7A Pending CN107959912A (en) | 2017-11-20 | 2017-11-20 | A kind of multifunctional sound box with two kinds of noise reducing sound box and noise reducer |
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| Country | Link |
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| CN (1) | CN107959912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166567A (en) * | 2018-10-09 | 2019-01-08 | 安徽信息工程学院 | A kind of noise-reduction method and equipment |
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| US20160353202A9 (en) * | 2012-06-20 | 2016-12-01 | Akg Acoustics Gmbh | Headphone for active noise suppression |
| CN205793252U (en) * | 2016-07-06 | 2016-12-07 | 微鲸科技有限公司 | A kind of active noise reduction audio amplifier |
| CN206302550U (en) * | 2016-10-31 | 2017-07-04 | 比亚迪股份有限公司 | The noise reduction system of automobile, automotive headrest and automobile |
| CN206481426U (en) * | 2017-01-05 | 2017-09-08 | 歌尔科技有限公司 | A kind of device and a kind of active noise reduction earphone for offsetting ambient noise |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20160353202A9 (en) * | 2012-06-20 | 2016-12-01 | Akg Acoustics Gmbh | Headphone for active noise suppression |
| CN203150113U (en) * | 2013-03-12 | 2013-08-21 | 徐华中 | Active noise reduction apparatus for automobile |
| CN104954936A (en) * | 2015-05-18 | 2015-09-30 | 上海斐讯数据通信技术有限公司 | Electronic reading terminal and noise reduction method and system for electronic reading terminal |
| CN204993794U (en) * | 2015-09-15 | 2016-01-20 | 新科实业有限公司 | Sound system of device of making an uproar falls in area initiative |
| CN205793252U (en) * | 2016-07-06 | 2016-12-07 | 微鲸科技有限公司 | A kind of active noise reduction audio amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109166567A (en) * | 2018-10-09 | 2019-01-08 | 安徽信息工程学院 | A kind of noise-reduction method and equipment |
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Application publication date: 20180424 |
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