CN114449713A - Intelligent audio recognition light control system - Google Patents
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- CN114449713A CN114449713A CN202011193337.0A CN202011193337A CN114449713A CN 114449713 A CN114449713 A CN 114449713A CN 202011193337 A CN202011193337 A CN 202011193337A CN 114449713 A CN114449713 A CN 114449713A
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- 238000010586 diagram Methods 0.000 description 4
- 230000001795 light effect Effects 0.000 description 3
- 230000008451 emotion Effects 0.000 description 2
- 230000002996 emotional effect Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 208000019914 Mental Fatigue Diseases 0.000 description 1
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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
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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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
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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 invention discloses an intelligent audio recognition light control system, and relates to the field of stage lighting control. The device comprises a control module and an audio recognition module, and can realize the acquisition of audio signals and the analysis of audio characteristic parameters to finally obtain the adjustment quantity of parameters of a light control program. The stage lighting control program can enable the stage lighting to generate abundant lighting effects, and meanwhile, the lighting effects change along with the change of live music, so that the sensory experience of the stage at the body is improved, the work of lighting control programmers is saved, and various small and medium-sized stages can obtain abundant stage lighting effects through a simple control mode.
Description
Technical Field
The invention relates to the field of stage lighting control, in particular to an intelligent audio recognition light control system.
Background
Stage lighting is also called 'stage lighting', and is one of field art modeling means. The generalized stage lighting equipment such as lighting lamps, slide projectors, control systems and the like is not only used for performance stages, but also commonly used in occasions such as bars, KTVs, outdoor landscapes and the like. In order to create artistic effects, stage lighting equipment includes smoke, water mist, and the like in addition to the control of light.
In order to create artistic modeling, the existing stage lighting equipment needs to control a large number of computer lamps and has complex contents, so that the control system of the stage lighting mainly utilizes the DMX protocol to perform allocation control by standard digital signals. The DMX512 protocol adopts one-way communication, and a data packet of the DMX512 protocol has 0-511 frame data and can control 512 channels at most. The system has the advantages of open communication protocol, high efficiency and reliability, and wide application in the stage lighting industry. For DMX512, a plurality of computer lamps can be controlled simultaneously by a data packet sent by a control system, each computer lamp is provided with different control channels, the control of multiple dimensions such as brightness, aperture, stroboflash, color, pattern, rotation or rotation can be realized, the lamp effect such as the jumping of color can be realized through the combination of multiple dimension control, and the control coordination of the plurality of computer lamps can form the graphic effect such as waves.
In the prior art, in professional stage performances, related personnel program the control of stage lighting according to performance contents to create a required atmosphere. However, in stage lighting equipment in occasions such as bars, KTVs, outdoor landscapes, etc., the shape of the stage lighting is selected from a plurality of fixed operation modes, and the matched lighting atmosphere cannot be adjusted in real time according to live music. Some existing schemes acquire a mark obtained by analyzing music from a music platform, and switch lighting control to a corresponding operation mode according to the mark, for example, mark the music as happy, happy or sad, and a lighting control system operates a preset lighting control program corresponding to music emotion through the acquired mark. This requires the acquisition of open rights for the music platform, while the flags are limited and the control program is preset and cannot be adjusted in real time following the singer. Other existing schemes control the lamp in real time along with human voice and music audio signals, but the data volume processing which can be carried out by a control system is limited, then the acquisition of music characteristics is limited, regular things in music are broken basically, and the lamp displays irregular color and brightness changes, so that the expressive force of music is poor.
Disclosure of Invention
In view of the above, the invention provides an intelligent audio recognition light control system, which can give consideration to programming of stage light by professionals and control of the stage light according to the scene music emotion in real time, so that the stage light effect is richer, and the stage light effect can be highly matched with the scene music and the scene performance, so that audiences can obtain better stage impression experience.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an intelligent audio recognition light control system which comprises a control module and an audio recognition module, wherein the control module is used for inputting and generating a light control program, and the audio recognition module is connected with the control module; the audio identification module comprises an audio receiving unit, a characteristic acquisition unit and a program adjusting unit which are sequentially connected; the audio receiving unit is used for receiving an externally input audio signal in real time; the characteristic acquisition unit is used for analyzing the audio signal acquired by the audio receiving unit to acquire an audio characteristic parameter of the audio signal; the program adjusting unit is used for obtaining the parameter adjustment quantity of the light control program for the audio characteristic parameters obtained by the characteristic obtaining unit; and the control module acquires the real-time adjustment quantity of the program adjustment unit, and generates and outputs an actual light control program.
Preferably, in the lighting control system, the adjustment amount is obtained by a reference median of the audio characteristic parameter as a zero point of the adjustment amount, a positive value of the adjustment amount is obtained by the audio characteristic parameter exceeding the reference median, a negative value of the adjustment amount is obtained by the audio characteristic parameter being lower than the reference median, and an actual parameter in the lighting control program is determined by increasing or decreasing the set value reference adjustment amount.
Preferably, in the lighting control system, the audio recognition module further includes a threshold determination unit, the threshold determination unit obtains a maximum value of the adjustment amount according to a reference maximum value of the audio characteristic parameter, and when the audio characteristic parameter exceeds the reference maximum value, the program adjustment unit outputs the maximum value of the adjustment amount, and when the audio characteristic parameter is smaller than the reference minimum value, the reference minimum value of the threshold determination unit parameter obtains a minimum value of the adjustment amount, and the program adjustment unit outputs the minimum value of the adjustment amount.
Preferably, in the lighting control system, the threshold judgment unit outputs the adjustment amount to be zero according to whether the audio characteristic parameter is lower than the start reference value, and the actual parameter of the lighting control program is obtained by performing percentage increase and decrease on the set value according to the adjustment amount.
Preferably, in the lighting control system, the audio recognition module further includes an adjustment judgment unit, and the adjustment judgment unit judges whether the current audio characteristic parameter changes beyond a set ratio, and when the current audio characteristic parameter exceeds the set ratio, the program adjustment unit obtains the adjustment amount again, and when the current audio characteristic parameter does not exceed the set ratio, the program adjustment unit operates the adjustment amount for the last time.
Preferably, the control module is provided with a parameter identification unit, the parameter identification unit marks the set parameter of the control program, and outputs the reference adjustment amount to the marked set parameter.
Preferably, in the lighting control system, the program adjusting unit obtains at least two adjustment amounts according to different audio characteristic parameters, and the parameter identifying unit marks the corresponding adjustment amounts for the control program according to the selection.
Preferably, in the light control system, the audio characteristic parameter is one or a combination of two or more of frequency, amplitude, bit rate, channel number, zero crossing rate, short-time energy, and short-time autocorrelation coefficient.
Preferably, the light control system further includes a light control program, wherein the light control program includes parameters of brightness, aperture size, strobe time, X-axis rotation, Y-axis rotation, pattern, XY speed, magnification, focus, chromaticity, or color.
Preferably, the control module of the lighting control system comprises a data processing unit, a control input unit, a storage unit, a DMX transceiver unit and a power module; the data processing unit comprises a first processor and a second processor; the control input unit comprises a scene selection key, a channel selection key, an input push rod and an operation key, wherein the scene selection key, the channel selection key and the input push rod are electrically connected with the second processor to input a light control program, and the operation key is electrically connected with the first processor to operate the control system; the storage unit is electrically connected to the first processor to store the light control program, and the DMX transceiver sends the light control program to the lighting equipment through the interface; the first processor is in communication connection with the second processor so as to send the input parameters to the first processor to generate a light control program; the audio receiving unit is a sound recording device and is electrically connected to the first processor; the feature acquisition unit and the feature acquisition unit are arranged on the first processor to convert the acquired sound signal into an adjustment quantity.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the stage lighting control system, the audio recognition module is arranged on the stage lighting control system, and the adjustment quantity capable of changing the running parameters of the set lighting control program in real time is obtained by utilizing the audio signal and the audio characteristics obtained by analysis, so that the lighting control program can enable the stage lamp to generate abundant lighting effects, and meanwhile, the lighting effects change along with the change of live music, so that the sensory experience of the stage at the position of the user is improved, the work of lighting control programmers is saved, and various small and medium stages can obtain abundant stage lighting effects in a simple control mode.
(2) The invention further sets the range of the adjustment amount and the adjustment mode of up-and-down floating, on one hand, the audio signal can be changed to follow the music, but not other audio signals; on the other hand, the floating change of the audio features can experience the emotional features of the music, and the light program parameters can be controlled to change along with the floating change, so that the light changes along with the emotional features of the music.
(3) The invention further enables the set parameters in single-step or multi-step scenes in the existing program to follow the adjustment parameters by setting the parameter identification unit, and enables the specific light control parameters to follow the change of the adjustment quantity obtained by specific audio characteristics by simplifying the existing program and compiling in real time, so that the light control based on audio identification is closer to the expression of live music, and simultaneously the basic expression style of light can be kept.
(4) The invention further realizes that the control of audio recognition and the control of key operation program input complement each other by setting the relevant circuit structure of program input, thereby obtaining better lighting experience.
The invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent audio recognition lighting control system according to the present invention;
FIG. 2 is a schematic diagram of a circuit structure of the intelligent audio recognition lighting control system of the present invention;
FIG. 3 is a schematic diagram of a structure of a determination unit of the intelligent audio recognition lighting control system according to the present invention;
fig. 4 is a schematic diagram of the control principle of the intelligent audio recognition light control system of the present invention.
The reference signs are: 1. a control module; 11. a first processor; 111. a parameter identification unit; 112. operating a key; 113. a storage unit; 114. a DMX transceiver unit; 12. a second processor; 121. a scene selection key 122, a channel selection key 123 and an input push rod; 13. a power supply module; 2. an audio recognition module; 21. an audio receiving unit; 22. a feature acquisition unit; 23. a program adjusting unit; 24. a judgment unit; 241. a threshold value judging unit; 242. and an adjustment judging unit.
Detailed Description
To better illustrate the objects, technical solutions and advantages of the present invention, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the present invention provides an intelligent audio recognition lighting control system, which includes a control module 1 and an audio recognition module 2, wherein the control module 1 is used for inputting and generating a lighting control program, and the audio recognition module 2 is connected to the control module 1.
It is understood that the control module 1 is used to obtain the DMX control program through channel (computer light) selection, scene (program step) selection, parameter (push rod program operation) input. And the control data of the DMX control program consists of a plurality of data frames, and each frame of data comprises a 1-bit low-level start bit, an 8-bit data bit and a 2-bit high-level stop bit. Wherein, for identifying the data packet, the BREAK signal and the MAB signal as the first frame data are included; other data frames are sent out on the control bus, and each stage lighting device responds to the corresponding control command to obtain the stage lighting effect. The audio recognition module 2 converts the field sound into an audio electric signal through recording by a microphone, or an audio interface directly obtains the audio electric signal, then obtains an audio characteristic signal through analysis, and obtains an adjustment quantity through the audio characteristic signal, wherein the adjustment quantity is associated with parameters of a light control program.
For example, in one aspect, the audio feature quantity is frequency, amplitude, bit rate, number of channels, zero-crossing rate, short-term energy, short-term autocorrelation coefficients, and the like. And the light control program parameter is a parameter between 0 and 256, or a parameter between 0 and 100%. In another aspect, the light control program is determined by the function of the stage computer light. For example, typical parameters are brightness, aperture size, strobe time, X-axis rotation, Y-axis rotation, pattern, XY speed, magnification, focus, chromaticity, and color. For example, 80% of brightness, namely 80% of the adjustable brightness range of the computer lamp; for example, the aperture size with the push rod is set to 98, which is 98/256 for the adjustable aperture range of the computer light.
Referring to fig. 1, in the embodiment, the audio recognition module 2 includes an audio receiving unit 21, a feature obtaining unit 22, a judging unit 24, and a program adjusting unit 23, which are connected in sequence; an audio receiving unit 21 for receiving an externally input audio signal in real time; a characteristic obtaining unit 22, configured to analyze the audio signal obtained by the audio receiving unit 21, and obtain an audio characteristic parameter of the audio signal; a judging unit 24, configured to judge the selected threshold and the changed interval according to the audio characteristic parameter; a program adjusting unit 23, configured to obtain an adjustment amount of a parameter of the light control program for the audio characteristic parameter obtained by the characteristic obtaining unit 22; the control module 1 acquires the real-time adjustment amount of the program adjustment unit 23, and generates and outputs an actual light control program.
It can be understood that the audio signal obtained by the audio receiving unit 21 has various meanings, and the analysis processor may be a reference for light control. The audio signal contains information such as tone, audio, timbre, etc., and is obtained by analyzing and processing by the feature obtaining unit 22. The audio characteristic signal may be of a different audio type and the audio characteristic signal is not provided with a reference function for light control. Thus, the determining unit 24 further classifies the audio feature signal to obtain the audio feature parameters matched with the music type, especially the required lighting in the music. When the audio characteristic parameter is judged and processed, the program adjusting unit 23 may judge whether the current audio characteristic parameter is a soothing one or a stimulating one according to the sequence position through the sequence position of the audio characteristic parameter in the music mental fatigue characteristic parameter. Finally, the audio feature parameters may form a control of parameters in the light control program.
For example, from the waveform frequency and amplitude of the current audio signal, the pitch feature of the audio signal can be analyzed, the judgment unit 24 further determines that the pitch feature is the audio signal of the music type, and analyzes and compares the pitch feature of the complete music type, so that the pitch feature can be located in a dimensional sequence such as a dimension sequence of a reliving to a exciting. The music tempo expressed by the tone features can be obtained quantitatively, and the adjustment amount of the computer lamp control parameters such as brightness and color can be obtained. When the value of the audio characteristic is in a relaxed position in the dimension, the brightness of the computer lamp is correspondingly reduced, the focus of focusing is reduced, and the chroma can be reduced to a color system of cold color and the like, so that the corresponding adjustment quantity of the lamp tube control program parameter is formed.
It will be appreciated that the same adjustment amount represents the mood of the music type, and thus the adjustment amount is adjustably increased or decreased in response to the control parameter of the computer light to create a coordinated ambiance.
Specifically, the adjustment amount is determined by increasing or decreasing the reference adjustment amount of a set value according to the actual parameters in the lighting control program.
For example, in the dimension from relaxation to excitement, the upper and lower limit thresholds to be followed are selected, and the median corresponding to the light parameter which does not need to be adjusted is selected. Or, the position of the light parameter which does not need to be adjusted is determined through a median value further obtained by the upper and lower limit threshold values.
Referring to fig. 3, in the present embodiment, the judging unit 24 includes a threshold judging unit 24124 and an adjustment judging unit 24224.
Specifically, the threshold judging unit 24124 obtains the maximum value of the adjustment amount from the reference maximum value of the audio feature parameter, and causes the program adjusting unit 23 to output the maximum value of the adjustment amount when the audio feature parameter exceeds the reference maximum value, the reference minimum value of the threshold judging unit 24124 parameter obtains the minimum value of the adjustment amount, and causes the program adjusting unit 23 to output the minimum value of the adjustment amount when the audio feature parameter is smaller than the reference minimum value.
It will be appreciated that the actual input audio signals are of a very large variety and thus the light control program only needs audio signals within the corresponding musical range. On the frequency characteristic of the audio signal, when the frequency is smaller than the minimum value of the frequency reference, outputting an audio characteristic parameter according to the minimum value of the frequency reference; when the frequency is greater than the reference maximum value, the audio feature parameter is output at the frequency reference maximum value.
Specifically, the adjustment judging unit 24224 judges whether the current audio feature parameter changes beyond the set ratio, and the program adjusting unit 23 retrieves the adjustment amount when the set ratio is exceeded, and the program adjusting unit 23 executes the adjustment amount last time when the set ratio is not exceeded.
It will be appreciated that in practice the audio characteristics of a song do not vary to a great extent, but that the variation occurs at any time. Similarly, the computer light is adjusted at a certain variation to arouse the visual idea of the viewer. Specifically, the adjustment determination unit 24224 compares and determines, and resets the current adjustment amount if the amount of change in the audio feature exceeds the set ratio, and sets the adjustment amount set last time as the current adjustment amount if the amount of change in the audio feature is within the set ratio. In addition, it can be understood that the period of the judgment can be set to filter out the audio feature reference information of the instantaneous extreme value, and the average value of the audio features can be taken as the setting calculation mode of the adjustment amount in the period of the judgment.
Referring to fig. 4, in this embodiment, the control module 1 is provided with a parameter identification unit 111, the parameter identification unit 111 marks the setting parameter of the control program, and outputs the reference adjustment amount to the marked setting parameter as the actual parameter. The program adjusting unit 23 obtains at least two adjustment amounts according to different audio characteristic parameters, and the parameter identifying unit 111 marks the corresponding adjustment amounts for the control program according to the selection.
Specifically, there are multiple audio characteristic parameters obtained from audio signal analysis, and according to one or more than two of the characteristic parameters such as frequency, amplitude, bit rate, etc., 1# adjustment quantity is obtained, which can indicate that the relative characteristic dimension of music type corresponds to relaxation to excitement; and the characteristic parameters of another kind or a plurality of kinds of combinations can be utilized to obtain the 2# adjustment quantity, and the relative characteristic dimension of the music type which can be represented by the adjustment quantity corresponds to sadness and joy.
For example, a 512-bit data frame is included in a data packet of the 512DMX, and the data frame can control a computer light corresponding to an address and a corresponding operation function of the computer light. The current brightness, the focusing degree, the X-axis and/or Y-axis running speed and the position corresponding to the lamp in the control program data packet are marked with parameter identification which is equal to the corresponding parameters of each program step, when the program steps run, the parameters change along with the current adjustment amount, the actual control program is output, and then the stage lighting effect matched with the current music environment is obtained.
Referring to fig. 2, in this embodiment, the intelligent audio recognition lighting control system further includes an input portion of a lighting control program, and forms a control device that is disposed on the stage site and can collect an audio signal in real time.
Specifically, the control module 1 includes a data processing unit, a control input unit, a storage unit 113, a DMX transceiving unit 114 and a power module 13; the data processing unit comprises a first processor 11 and a second processor 12; the control input unit comprises a scene selection key, a channel selection key, an input push rod channel selection key 123 and an operation key 112, the scene selection key, the channel selection key and the input push rod channel selection key 123 are electrically connected to the second processor 12 to input the light control program, and the operation key 112 is electrically connected to the first processor 11 to operate the control system; the storage unit 113 is electrically connected to the first processor 11 to store the light control program, and the DMX transceiver transmits the light control program to the lighting equipment through the interface; the first processor 11 is in communication connection with the second processor 12 to send the input parameters to the first processor 11 to generate a light control program; the audio receiving unit 21 is a sound recording device and is electrically connected to the first processor 11; the feature acquisition unit 22 and the feature acquisition unit 22 are provided to the first processor 11 to convert the acquired sound signal into an adjustment amount.
It will be appreciated that the data processing unit consists of two processors to increase system stability by using a mental effort to handle different output processing. The second processor 12 is used for collecting electric signals of the keys and the push rod, realizing the input of a control program and outputting the control program to the first processor 11. And the first processor 11 is used for identifying the audio signal, inputting an interactive system of the light control program, and generating, storing and sending the light control program signal.
The steps in the actual programming according to an embodiment of the invention are as follows:
(1) the system functions are operated via the operating buttons 112 and the display module and the programming state of the control interface is entered. And operating a channel selection key, and lighting a corresponding indication LED lamp after the channel selection key is pressed down to select the parameter computer lamp required to be changed.
(2) The SCENE selection button is operated to select a SCENE (i.e., SCENE) to be edited as a "single-step program" or a "multi-step program" (i.e., light-off).
(3) Operating an input push rod channel selection key 123, and setting selection of parameters of each computer lamp in a single step program; in the multiple programs, the running state and running sequence of the computer lamp of the beam Xue are set.
(4) And (4) repeating the steps 1 to 3 to form a plurality of stage lighting control programs, such as comprehensive stage lighting effects of sequential swinging, focusing gradual change, light fade-in fade-out, multi-color jumping change and the like of the computer lamp.
(5) And marking the part of each parameter of each computer lamp, which needs to change along with the audio signal, according to the parameter identification unit 111.
In summary, the operation states of the stage lighting according to the embodiment of the present invention are as follows: when the control module 1 operates in the audio recognition control mode, the recording device operates and inputs audio signals, the adjustment amount is output after the audio recognition, and the control module 1 adjusts and outputs corresponding parameters in the light control program in real time according to the adjustment amount, so that the light effect of the computer light operation is associated with the instant music performance.
The foregoing embodiments have been described primarily for the purposes of illustrating the general principles, and features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The intelligent audio recognition light control system is characterized by comprising a control module (1) and an audio recognition module (2), wherein the control module (1) is used for inputting and generating a light control program, and the audio recognition module (2) is connected to the control module (1); the audio identification module (2) comprises an audio receiving unit (21), a feature acquisition unit (22) and a program adjusting unit (23) which are connected in sequence;
the audio receiving unit (21) is used for receiving an externally input audio signal in real time;
the characteristic obtaining unit (22) is used for analyzing the audio signal obtained by the audio receiving unit (21) to obtain an audio characteristic parameter of the audio signal;
the program adjusting unit (23) is used for obtaining the adjustment quantity of parameters of the light control program for the audio characteristic parameters obtained by the characteristic obtaining unit (22);
and the control module (1) acquires the real-time adjustment amount of the program adjustment unit (23), and generates and outputs an actual light control program.
2. The intelligent audio recognition light control system of claim 1, wherein the adjustment amount is obtained by a reference median of the audio characteristic parameters to obtain a zero point of the adjustment amount, a positive value of the adjustment amount is obtained by the audio characteristic parameters exceeding the reference median, a negative value of the adjustment amount is obtained by the audio characteristic parameters being lower than the reference median, and the actual parameters in the light control program are determined by increasing or decreasing the set value reference adjustment amount.
3. The intelligent audio identification light control system according to claim 2, wherein the audio identification module (2) further comprises a threshold value judging unit (241) (24), the threshold value judging unit (241) (24) obtains the maximum value of the adjustment amount according to the reference maximum value of the audio characteristic parameter, and causes the program adjusting unit (23) to output the maximum value of the adjustment amount when the audio characteristic parameter exceeds the reference maximum value, the reference minimum value of the parameter of the threshold value judging unit (241) (24) obtains the minimum value of the adjustment amount, and causes the program adjusting unit (23) to output the minimum value of the adjustment amount when the audio characteristic parameter is smaller than the reference minimum value.
4. The intelligent audio recognition light control system according to claim 3, wherein the threshold value judging unit (241) (24) outputs an adjustment amount of zero according to the audio characteristic parameter if the audio characteristic parameter is lower than the start reference value, and the actual parameter of the light control program is obtained by percentage increase and decrease of a set value according to the adjustment amount.
5. The intelligent audio recognition light control system according to claim 1, wherein the audio recognition module (2) further comprises an adjustment judging unit (242) (24), the adjustment judging unit (242) (24) judges whether the current audio feature parameter changes beyond a set ratio, the program adjusting unit (23) acquires the adjustment amount again when the current audio feature parameter exceeds the set ratio, and the program adjusting unit (23) operates by the adjustment amount of the previous time when the current audio feature parameter does not exceed the set ratio.
6. The intelligent audio recognition light control system according to claim 1, wherein the control module (1) is provided with a parameter identification unit (111), the parameter identification unit (111) marks the set parameters of the control program, and outputs the reference adjustment amount to the actual parameters for the marked set parameters.
7. An intelligent audio recognition light control system according to claim 6, wherein the program adjustment unit (23) obtains at least two adjustment amounts according to different audio characteristic parameters, and the parameter identification unit (111) marks the control program with corresponding adjustment amounts according to the selection.
8. An intelligent audio recognition light control system according to claim 7, wherein the audio feature parameters are one or a combination of more than two of frequency, amplitude, bit rate, number of channels, zero crossing rate, short time energy, short time autocorrelation coefficient.
9. The intelligent audio recognition light control system of claim 1, wherein the light control program parameter is brightness, aperture size, strobe time, X-axis rotation, Y-axis rotation, pattern, XY speed, magnification, focus, chromaticity or color.
10. An intelligent audio recognition light control system according to any one of claims 1 to 9, wherein the control module (1) comprises a data processing unit, a control input unit, a storage unit (113), a DMX transceiver unit (114) and a power supply module (13); the data processing unit comprises a first processor (11) and a second processor (12); the control input unit comprises a scene selection key, a channel selection key, an input push rod (channel selection key, 123) and an operation key (112), the scene selection key, the channel selection key and the input push rod (channel selection key, 123) are electrically connected with the second processor (12) to input the light control program, and the operation key (112) is electrically connected with the first processor (11) to operate the control system; the storage unit (113) is electrically connected to the first processor (11) to store the light control program, and the DMX transceiver sends the light control program to the lighting equipment through the interface; the first processor (11) is in communication connection with the second processor (12) so as to send the input parameters to the first processor (11) to generate a light control program; the audio receiving unit (21) is a sound recording device and is electrically connected to the first processor (11); the feature acquisition unit (22) and the feature acquisition unit (22) are provided to the first processor (11) to convert the acquired sound signal into an adjustment amount.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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