CN106211502A - A kind of method and system of audio frequency control light - Google Patents
A kind of method and system of audio frequency control light Download PDFInfo
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- CN106211502A CN106211502A CN201610516497.1A CN201610516497A CN106211502A CN 106211502 A CN106211502 A CN 106211502A CN 201610516497 A CN201610516497 A CN 201610516497A CN 106211502 A CN106211502 A CN 106211502A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The present invention relates to signal light control field, be specifically related to the method and system of a kind of audio frequency control light.The method of described audio frequency control light comprises the following steps: obtain audio frequency；Identify the drumbeat in audio frequency；When recognize there is drumbeat in audio frequency time, carry out the signal light control of corresponding drumbeat.The beneficial effects of the present invention is: the method and system of audio frequency control light of the present invention, by whether real-time detection audio frequency exists drumbeat, and then carry out the signal light control of corresponding drumbeat, real-time for the change of audio frequency is shown in lighting effects, it is achieved that the visualization of audio frequency.By vision, annotate the speed change of audio rhythm by the change of light, improve the scene degree of incorporating of user, by vision, participant is brought in the beating of rhythm, improve recreational, make user obtain more preferable recreation experience.
Description
Technical field
The present invention relates to signal light control field, be specifically related to the method and system of a kind of audio frequency control light.
Background technology
In current wonderful stage, the control for light such as stage lighting, shot-light and laser lamps uses DMX control station to carry out mostly
Hand control.And for woodwing or KTV box, control station be separately configured and manual hand manipulation seems and do not sounds feasible
Border.And existing audio frequency control lighting technology is mainly used in digital audio-video place, the field such as such as KTV place, bar, performance stage
Close.
The Chinese invention patent of Publication No. " 103596321A " discloses " a kind of light control module control system and method ",
It, by controlling the termination collection of letters number, searches allocation list, obtains corresponding light type, and by this light type plus controlling letter
Breath is packaged into lamp control control instruction, this instruction is sent to light control module, thus realizes remotely to corresponding lamplight scene
Automatically arrange and the most self-defined setting, make user obtain satisfied atmosphere scenes, by automatically generating and transmitting reality
Now carry out lamps intelligent control according to types of songs, it is not necessary to user oneself goes to configure light control module, decreases the difficulty of configuration,
And add configuration in real time and ageing, it is to avoid need manually to go each box to control light, thus improve efficiency.
But above-mentioned existing audio frequency control lighting technology is to be associated with specific sound according to the lighting effects realizing setting
In pleasure, during whole broadcasting music, light is all to play out according to the play mode set, and does not has and in music
Rhythm carries out interaction, and overall scenario effect of visualization seems excessively dull, poor user experience.
Summary of the invention
The technical problem to be solved is: provides a kind of audio frequency and lighting effects real-time interactive, promotes user's body
Test the method and system of a kind of audio frequency control light of effect.
For achieving the above object, the present invention is to realize by the following technical solutions: provide a kind of audio frequency control light
Method, said method comprising the steps of:
Obtain audio frequency；
Identify the drumbeat in audio frequency；
When recognize there is drumbeat in audio frequency time, carry out the signal light control of corresponding drumbeat.
Preferably, in the method for above-mentioned audio frequency control light, the method for the drumbeat in described identification audio frequency is:
Obtain audio digital signals；
Described audio digital signals is carried out Fourier transformation, makes audio digital signals transform from the time domain to frequency domain, obtain
Audio spectral signal；
Detect peak swing value Amax of described audio spectral signal medium and low frequency signal；
If described Amax is more than threshold value U preset, there is drumbeat in the most described audio frequency.
Preferably, in the method for above-mentioned audio frequency control light, described " detect described audio spectral signal medium and low frequency signal
Peak swing value Amax " particularly as follows:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is arrived
Being divided into 34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is carried out
Relatively, the maximum obtained is peak swing value Amax.
Preferably, the method for above-mentioned audio frequency control light is particularly as follows: classify to audio frequency in advance, and to every class audio frequency
Configure corresponding signal light control pattern；When unidentified to when audio frequency exists drumbeat, by the default light control that described audio frequency is corresponding
Molding formula carries out signal light control；
When recognize there is drumbeat in audio frequency time, signal light control is switched to corresponding drumbeat by presetting signal light control pattern
Signal light control；
If being not detected by next drumbeat from recognizing nearest drumbeat within default continuous time, then signal light control is extensive
The default signal light control pattern of multiple corresponding audio frequency, otherwise carries out the signal light control of corresponding drumbeat；Described default continuous time is
0.1s～12s.
Preferably, in the method for above-mentioned audio frequency control light, the signal light control of described corresponding drumbeat is particularly as follows: send drum
The triggering signal that point exists is to light control module, and light is configured to corresponding lighting effects according to this triggering signal by light control module.
Preferably, in the method for above-mentioned audio frequency control light, described lighting effects include: corresponding drumbeat produces the time,
Flash the lamp of concrete color；Or the lamp of flicker particular type；Or flash the lamp of two or more color successively；Or it is polytype
Lamp coordinates flicker；Or while light flash, coordinate water spray, jet, scream or applause effect.
Another technical scheme that the present invention provides is: provide the system of a kind of audio frequency control light, obtains mould including audio frequency
Block, tempo and beat analysis module and control module；
Described audio frequency acquisition module is used for obtaining audio frequency；
Described tempo and beat analysis module is for identifying the drumbeat in described audio frequency；
Described control module, for when tempo and beat analysis module recognizes and there is drumbeat in audio frequency, carries out signal light control.
Preferably, in the system of above-mentioned audio frequency control light, described tempo and beat analysis module includes acquisition module, conversion mould
Block, detection module and determine module；
Described acquisition module is for obtaining the audio digital signals of described audio frequency；
Described conversion module, for described audio digital signals is carried out Fourier transformation, makes audio digital signals from time domain
Transform to frequency domain, obtain audio spectral signal；
Described detection module obtains peak swing value Amax of described audio spectral signal medium and low frequency signal for detection；
Described threshold value U determining that if module is preset for determining described Amax to be more than, there is drumbeat in the most described audio frequency.
Preferably, in the system of above-mentioned audio frequency control light, described detection module specifically for:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is arrived
Being divided into 34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is carried out
Relatively, the maximum obtained is peak swing value Amax.
Preferably, the system of above-mentioned audio frequency control light, also include the first default control module and the second default control
Module；
Described first default control module, in advance described audio frequency being classified and corresponding to the configuration of every class audio frequency
Signal light control pattern；When tempo and beat analysis module is unidentified to when there is drumbeat in audio frequency, by the default lamp that described audio frequency is corresponding
Light control mode carries out signal light control；
Described second default control module, default continuous for recognize nearest drumbeat from tempo and beat analysis module
If being not detected by next drumbeat in the time, then signal light control recovers the default signal light control pattern of corresponding audio frequency, and it is right otherwise to carry out
Answer the signal light control of drumbeat；Described default continuous time is 0.1s～12s.
Described control module is particularly as follows: the triggering signal sending drumbeat existence touches to light control module, light control module according to this
Signal and light is configured to corresponding lighting effects；
Described lighting effects include: corresponding drumbeat produces the time, flashes the lamp of concrete color；Or flicker particular type
Lamp；Or flash the lamp of two or more color successively；Or polytype lamp coordinates flicker；Or coordinate while light flash
Water spray, jet, scream or applause effect.
The beneficial effects of the present invention is: the method and system of audio frequency control light of the present invention, by real-time detection sound
Whether there is drumbeat in Pin, and then carry out the signal light control of corresponding drumbeat, real-time for the change of audio frequency is shown lighting effects
On, it is achieved that the visualization of audio frequency.By vision, by the speed change of the change annotation audio rhythm of light, improve user
Scene degree of incorporating, by vision, participant is brought in the beating of rhythm, improves recreational, make user obtain preferably
Recreation experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of the embodiment of the method for the audio frequency control light of the detailed description of the invention of the present invention；
Fig. 2 is whether frequency-region signal exists drumbeat judgement figure in the range of a 5Hz.
Fig. 3 is the structured flowchart of the system embodiment of the audio frequency control light of the detailed description of the invention of the present invention.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is: is presented the speed of audio rhythm by light change, improves audio frequency and light
Interactive.By vision, participant is brought in the beating of rhythm, improve recreational and more preferable experience.
Embodiment 1
Refer to Fig. 1, a kind of method of audio frequency control light, said method comprising the steps of:
Obtain audio frequency；
Identify the drumbeat in audio frequency；
When recognize there is drumbeat in audio frequency time, carry out signal light control.
Audio frequency of the present invention can be arbitrary audio frequency, it is also possible to be accompanying song.
Wherein, the method for the drumbeat in described identification audio frequency is:
Obtain audio digital signals；
Described audio digital signals is carried out Fourier transformation, makes audio digital signals transform from the time domain to frequency domain, obtain
Audio spectral signal；
Detect peak swing value Amax of described audio spectral signal medium and low frequency signal；
If described Amax is more than threshold value U, there is drumbeat in the most described audio frequency.
Wherein, the method for described acquisition audio digital signals is: record the audio frequency play, and the process of recording uses
Fixing sample rate, by recording, obtains the audio digital signals of the PCM data form of audio frequency.
In the method for above-mentioned audio frequency control light, described " detect the maximum of described audio spectral signal medium and low frequency signal
Amplitude Amax " can be:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is arrived
Being divided into 34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is carried out
Relatively, the maximum obtained is peak swing value Amax.
In the present embodiment, the signal light control of described corresponding drumbeat is particularly as follows: send the triggering signal of drumbeat existence to lamp control
Module, light is configured to corresponding lighting effects according to this triggering signal by light control module.
Described lighting effects include: corresponding drumbeat produces the time, flashes the lamp of concrete color；Or flicker particular type
Lamp；Or flash the lamp of two or more color successively；Or polytype lamp coordinates flicker；Or coordinate while light flash
Water spray, jet, scream or applause effect so that the display of light coordinates the change of drumbeat to change.
Use the present embodiment technical scheme, when audio frequency recognizes there is drumbeat time, light is controlled so that lamp
Light shows and matches with audio frequency drumbeat, is presented the speed of audio rhythm by light change, and audio frequency and light show have interaction
Property, so some digital audio-video places (such as, KTV, bar etc.), it is greatly improved Consumer's Experience.
Embodiment 2
As a example by audio frequency is as accompanying song, the method for described audio frequency control light particularly as follows:
Step 1: in advance audio frequency is classified, and every class audio frequency is configured corresponding signal light control pattern；
Audio frequency such as can be divided into the types such as fast song, slow song, sad love song, then the song of each type is configured phase
The signal light control pattern answered.Such as, the signal light control pattern to fast song configuration light fast blink.
In above-mentioned steps 1, first by categorizing songs, signal light control pattern (this reality of every class song configuration corresponding types song
Execute the signal light control pattern of every class song configuration corresponding types song of mode, refer in Publication No. " 103596321A "
A kind of light control module control system and method disclosed in state's patent of invention).
Step 2: when unidentified to when there is drumbeat in audio frequency, the default signal light control pattern corresponding by described audio frequency is carried out
Signal light control；After song commences play out, begin to identify in song whether there is drumbeat, unidentified before drumbeat, press
Song is preset signal light control pattern and is carried out signal light control.The method reference example 1 of the drumbeat in described identification audio frequency.
In above-mentioned steps 2, before identifying the drumbeat in audio frequency, audio signal need to be transferred to audio digital signals, particularly as follows:
Recording the audio frequency play, the process of recording uses fixing sample rate, by recording, obtains the PCM data lattice of audio frequency
The audio digital signals of formula.
Step 3: when recognize there is drumbeat in audio frequency time, signal light control is switched to correspondence by presetting signal light control pattern
The signal light control of drumbeat；
Step 4: if being not detected by next drumbeat, then light from recognizing nearest drumbeat within default continuous time
Control to recover the default signal light control pattern of corresponding audio frequency, otherwise carry out the signal light control of corresponding drumbeat；Described default continuous
Time is 0.1s～12s.
In the present embodiment, the lamp light control method of corresponding drumbeat is similar to Example 1 with signal light control effect.
Use the technical scheme of the present embodiment, when the unidentified drumbeat to song, by the default light control that song is corresponding
Molding formula carries out signal light control, after recognizing and there is drumbeat in song, just carries out the signal light control of corresponding drumbeat, such light
Display can match with song drumbeat, improves user K song or listens song to experience.
Embodiment 3
As a example by audio frequency is as song, the present embodiment combination algorithm, the method for audio frequency control light is carried out launching explanation, bag
Include following steps:
1, the extraction of voice data
Playing song, record the song play, the process of recording uses fixing sample rate.So, logical
Cross recording, the PCM data of song, i.e. required voice data can be obtained.
2, voice data is analyzed
Owing to the PCM data of song comprises two sound channels in left and right, the detection of actual bass has only to process a sound channel
Data, in this embodiment, we select left channel data.
3, voice data is carried out the time domain conversion to frequency domain
The L channel PCM data of song is carried out Fourier transformation, uses voice data to transform from the time domain to frequency domain.Discrete
Fourier transformation direct transform, formula is as follows:
4, peak swing value Amax between low frequency signal 30HZ-200HZ is obtained
Division according to basic, normal, high sound and the human ear impression to audio frequency, overall frequency range is 20HZ～20000HZ,
(referring to sound frequency that human ear can the hear sound wave between 20HZ～20kHz, referred to as audio frequency).The bass of this applying detection
Frequency range is: 30HZ-200HZ.After Fourier transformation, it is possible to obtain each amplitude of this band frequency of bass.With 5HZ
It is a fundamental region, 30HZ-200HZ to being divided into 34 regions, obtains the peak swing value in each region respectively:
A1, A2......A15, A34, altogether 34 values, then compare and obtain this 34 values, maximum is set to peak swing value
Amax。
By low frequency signal being carried out subregion, then carry out the peak swing value in each region of parallel computation, finally
Relatively the peak swing value of regional, obtains peak swing value Amax of low frequency signal.Use aforesaid way, by parallel meter
Calculate the peak swing value in each region, amount of calculation can be greatly reduced, significantly promote computational efficiency；Simultaneously, it is not necessary to by each
The amplitude of low frequency signal compares with the threshold value preset, only need to be by peak swing value Amax finally obtained and the threshold preset
Value compares, and can further improve computational efficiency.
5, drumbeat threshold value U inventors such as (supplement) explanations of threshold value
The all Amax calculated according to the 4th point analysis audio frequency PCM data.Through test and experience, we obtain one
Individual threshold value is: U.The optional scope of the threshold value of the present invention is: 22db～50db, and the audition model of normal person is 0～80db, can basis
The song of different bent point combines test, determines threshold value U.
6, whether there is the judgement of drumbeat
If peak swing value Amax > threshold value U, then it is assumed that the section audio that song is being play exists a low point of articulation
(i.e. drumbeat), otherwise it is assumed that unidentified to drumbeat.
Concrete drumbeat detection is exemplified below:
Referring to Fig. 2, initial data here is from the PCM data taken out, and takes out this section audio data time domain and shows,
The wherein X-axis express time of time domain, Y-axis represents decibel (numerical value is the value after reducing 10 times).Time domain data is converted into correspondence
Frequency domain data as figure: the X-axis of frequency domain represents that frequency, Y-axis represent decibel (numerical value is the value after reducing 10 times).X-axis with 5Hz is
One interval takes maximum.
Being just 5Hz from F-4 to F+1, obtaining maximum is 2, is converted into the db that original value is 2*10=20db < threshold value U
(34～50db), for non-drumbeat.
In like manner dividing with 5Hz between 30HZ-200HZ and take out maximum 34 intervals, the maximum of taking-up reverts to
Comparing with threshold value after actual value, in the interval of threshold value U, explanation has drumbeat, does not otherwise have.
7, lighting effects are preset
Pre-setting the lighting effects of corresponding drumbeat, and store in equipment, effect can be adjusted according to personal like
Whole.The communication protocol of equipment and light is adopted international standards agreement DMX512 agreement.The effect number of storage can be deposited according to equipment
The air-conditioning size of storage carries out the configuration of effect number.
8, signal light control
The lighting effects number being preset in equipment is when preparing resource.Three kinds or many can be had when recognizing a drumbeat
The mode planted carries out signal light control.The signal light control of corresponding drumbeat specifically may is that 1, corresponding a kind of color of drumbeat flicker
Lamp；2, a type of lamp (such as shot-light) is flashed；3, a corresponding drumbeat flashes the lamp of two or more color successively；4、
A corresponding polytype lamp of drumbeat coordinates flicker；5, a corresponding drumbeat coordinate while light flash water spray, jet,
Scream or applause effect so that the display of light coordinates the change of drumbeat to change.
Certainly, the signal light control effect of above-mentioned every kind of corresponding drumbeat has preset execution duration, many and frequent at drumbeat
Audio frequency in select first two control mode can preferably experience the sense of rhythm of audio frequency.
Embodiment 4
Referring to Fig. 3, the system of a kind of audio frequency control light, including audio frequency acquisition module 1, tempo and beat analysis module 2 and control
Molding block 3；
Described audio frequency acquisition module is used for obtaining audio frequency；
Described tempo and beat analysis module is for identifying the drumbeat in described audio frequency；
Described control module, for when tempo and beat analysis module recognizes and there is drumbeat in audio frequency, carries out signal light control.
In a specific embodiment, described tempo and beat analysis module includes acquisition module, conversion module, detection module and really
Cover half block；
Described acquisition module is for obtaining the audio digital signals of described audio frequency；
Described conversion module, for described audio digital signals is carried out Fourier transformation, makes audio digital signals from time domain
Transform to frequency domain, obtain audio spectral signal；
Described detection module obtains peak swing value Amax of described audio spectral signal medium and low frequency signal for detection；
If described determine module for determine described Amax more than threshold value U, there is drumbeat in the most described audio frequency.
In a specific embodiment, described detection module specifically for:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is arrived
Being divided into 34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is carried out
Relatively, the maximum obtained is peak swing value Amax.
In a specific embodiment, the system of above-mentioned audio frequency control light, also include the first default control module and
Second default control module；
Described first default control module is used for: classify described audio frequency in advance, and corresponding to the configuration of every class audio frequency
Signal light control pattern；When tempo and beat analysis module is unidentified to when there is drumbeat in audio frequency, by the default lamp that described audio frequency is corresponding
Light control mode carries out signal light control；
Described second default control module is used for: from tempo and beat analysis module recognize nearest drumbeat default continuous
If being not detected by next drumbeat in the time, then signal light control recovers the default signal light control pattern of corresponding audio frequency, and it is right otherwise to carry out
Answer the signal light control of drumbeat；Described default continuous time is 0.1s～12s.
Described control module is particularly as follows: the triggering signal sending drumbeat existence touches to light control module, light control module according to this
Signal and light is configured to corresponding lighting effects；
Described lighting effects include: corresponding drumbeat produces the time, flashes the lamp of concrete color；Or flicker particular type
Lamp；Or flash the lamp of two or more color successively；Or polytype lamp coordinates flicker；Or coordinate while light flash
Water spray, jet, scream or applause effect.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
The equivalents that bright description and accompanying drawing content are made, or directly or indirectly it is used in relevant technical field, the most in like manner include
In the scope of patent protection of the present invention.
Claims (11)
1. the method for an audio frequency control light, it is characterised in that said method comprising the steps of:
Obtain audio frequency；
Identify the drumbeat in audio frequency；
When recognize there is drumbeat in audio frequency time, carry out the signal light control of corresponding drumbeat.
The method of audio frequency control light the most according to claim 1, it is characterised in that the drumbeat in described identification audio frequency
Method is:
Obtain audio digital signals；
Described audio digital signals is carried out Fourier transformation, makes audio digital signals transform from the time domain to frequency domain, obtain audio frequency
Spectrum signal；
Detect peak swing value Amax of described audio spectral signal medium and low frequency signal；
If described Amax is more than threshold value U preset, there is drumbeat in the most described audio frequency.
The method of audio frequency control light the most according to claim 2, it is characterised in that described " detect described audible spectrum
Peak swing value Amax of signal medium and low frequency signal " particularly as follows:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is divided into
34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is compared,
To maximum be peak swing value Amax.
The method of audio frequency control light the most according to claim 1, it is characterised in that described method is particularly as follows: the most right
Audio frequency is classified, and every class audio frequency is configured corresponding signal light control pattern；When unidentified to when audio frequency exists drumbeat, press
The default signal light control pattern that described audio frequency is corresponding carries out signal light control；
When recognize there is drumbeat in audio frequency time, by signal light control by the light presetting signal light control pattern and being switched to corresponding drumbeat
Control；
If being not detected by next drumbeat from recognizing nearest drumbeat within default continuous time, then signal light control recovers right
Answer the default signal light control pattern of audio frequency, otherwise carry out the signal light control of corresponding drumbeat；Described default continuous time is 0.1s
～12s.
The method of audio frequency control light the most according to claim 1, it is characterised in that the signal light control of described corresponding drumbeat
Particularly as follows: light is configured to phase to light control module, light control module according to this triggering signal by the triggering signal sending drumbeat existence
The lighting effects answered.
The method of audio frequency control light the most according to claim 5, it is characterised in that described lighting effects include: corresponding
Drumbeat produces the time, flashes the lamp of concrete color；Or the lamp of flicker particular type；Or flash two or more color successively
Lamp；Or polytype lamp coordinates flicker；Or while light flash, coordinate water spray, jet, scream or applause effect.
7. the system of an audio frequency control light, it is characterised in that include audio frequency acquisition module, tempo and beat analysis module and control mould
Block；
Described audio frequency acquisition module, is used for obtaining audio frequency；
Described tempo and beat analysis module, for identifying the drumbeat in described audio frequency；
Described control module, for when tempo and beat analysis module recognizes and there is drumbeat in audio frequency, carries out signal light control.
The system of audio frequency control light the most according to claim 7, it is characterised in that
Described tempo and beat analysis module includes acquisition module, conversion module, detection module and determines module；
Described acquisition module, for obtaining the audio digital signals of described audio frequency；
Described conversion module, for described audio digital signals is carried out Fourier transformation, makes audio digital signals become from time domain
Change to frequency domain, obtain audio spectral signal；
Described detection module, obtains peak swing value Amax of described audio spectral signal medium and low frequency signal for detection；
Described determine module, if for determine described Amax more than threshold value U preset, there is drumbeat in the most described audio frequency.
The system of audio frequency control light the most according to claim 8, it is characterised in that described detection module specifically for:
It is a fundamental region by 30HZ-200HZ signal in described audio spectral signal with 5HZ, 30HZ-200HZ is divided into
34 regions, detection obtains the peak swing value in each region respectively, the peak swing value in all regions is compared,
To maximum be peak swing value Amax.
The system of audio frequency control light the most according to claim 7, it is characterised in that also include the first default control mould
Block and the second default control module；
Described first default control module, for classifying described audio frequency in advance, and configures corresponding lamp to every class audio frequency
Light control mode；When tempo and beat analysis module is unidentified to when there is drumbeat in audio frequency, by the default light control that described audio frequency is corresponding
Molding formula carries out signal light control；
Described second default control module, for from tempo and beat analysis module recognize nearest drumbeat in default continuous time
If be not detected by next drumbeat in, then signal light control recovers the default signal light control pattern of corresponding audio frequency, otherwise carries out corresponding drum
The signal light control of point；Described default continuous time is 0.1s～12s.
The system of 11. audio frequency control light according to claim 7, it is characterised in that described control module is concrete
For: light is configured to according to this triggering signal accordingly by the triggering signal sending drumbeat existence to light control module, light control module
Lighting effects；
Described lighting effects include: corresponding drumbeat produces the time, flashes the lamp of concrete color；Or the lamp of flicker particular type；Or
Flash the lamp of two or more color successively；Or polytype lamp coordinates flicker；Or while light flash coordinate water spray,
Jet, scream or applause effect.
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| CN106875930A (en) * | 2017-02-09 | 2017-06-20 | 深圳市韵阳科技有限公司 | Lamp light control method and system based on song sound accompaniment and microphone voice real-time detection |
| CN107329980A (en) * | 2017-05-31 | 2017-11-07 | 福建星网视易信息系统有限公司 | A kind of real-time linkage display methods and storage device based on audio |
| CN107580399A (en) * | 2017-09-22 | 2018-01-12 | 上海韵焰智能科技有限公司 | Lamp light control method and device |
| CN107889323A (en) * | 2017-09-27 | 2018-04-06 | 杭州古北电子科技有限公司 | The control method and device that a kind of light is shown |
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| CN108200703A (en) * | 2018-01-02 | 2018-06-22 | 联想(北京)有限公司 | Control method, device and the electronic equipment of a kind of light with audio interaction |
| CN108322971A (en) * | 2018-01-30 | 2018-07-24 | 广州市百果园信息技术有限公司 | Music drumbeat control terminal flash of light method, storage device and computer equipment |
| CN108925021B (en) * | 2018-08-14 | 2020-03-20 | 福建星网视易信息系统有限公司 | Light effect control method based on drumbeat information and computer readable storage medium |
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| CN112634814A (en) * | 2020-12-01 | 2021-04-09 | 黑龙江建筑职业技术学院 | Rhythm control method of LED three-dimensional stereoscopic display following music |
| CN112634814B (en) * | 2020-12-01 | 2022-04-08 | 黑龙江建筑职业技术学院 | Rhythm control method of LED three-dimensional stereoscopic display following music |
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