JPWO2018066115A1 - Lighting control device - Google Patents

Abstract

A lighting control device that controls lighting equipment according to reproduction of music includes a light emission timing detection unit (9) that detects light emission timing of the lighting equipment, and an audio output timing detection unit (13) that detects audio output timing of music And at least one of the light emission timing detected by the light emission timing detection unit (9) and the audio output timing detected by the audio output timing detection unit (13) is synchronously adjusted to the other timing. And a timing adjustment unit (14).

Description

  The present invention relates to a lighting control device that controls lighting devices according to the reproduction of music.

In a concert or a club scene, it is important in terms of stage effects to change lighting in synchronization with lighting corresponding to music or music.
For this reason, automation of the lighting operation corresponding to a music is proposed conventionally. For example, the techniques described in Patent Document 1 and Patent Document 2 create illumination control data regarding illumination content corresponding to music in advance, and synchronize with the music at the time of playing the music, based on the illumination control data. Is controlled to realize a desired lighting effect corresponding to the music.

Patent No. 374079 JP, 2010-192155, A

However, even if the control signal for causing the lighting device to emit light at the timing of the beat position of the music is output in the techniques described in Patent Document 1 and Patent Document 2, until the light is actually emitted after the control signal is output. Since a delay may occur, there is a problem that a gap occurs between the beat position and the light emission timing.
In addition, even if the positions of the light emission timings are uniformly shifted, the light emission timings of the lamps of the lighting apparatus have variations, which makes it difficult to synchronize the whole.

  An object of the present invention is to provide a lighting control device capable of adjusting the light emission timing for each lighting device.

The lighting control device of the present invention is
A lighting control device that controls lighting equipment according to reproduction of music,
A light emission timing detection unit that detects a light emission timing of the lighting device;
An audio output timing detection unit that detects an audio output timing of the music;
A timing adjustment unit for synchronously adjusting at least one of the light emission timing detected by the light emission timing detection unit and the audio output timing detected by the audio output timing detection unit to the other timing; It is characterized by having.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the structure of the acoustic illumination control system which concerns on 1st Embodiment of this invention. The block diagram which shows the structure of the acoustic lighting control system of the said embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the structure of the acoustic illumination control system which concerns on 1st Embodiment of this invention. The block diagram which shows the structure of the acoustic lighting control system of the said embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the structure of the acoustic illumination control system which concerns on 1st Embodiment of this invention. The block diagram which shows the structure of the acoustic lighting control system of the said embodiment.

Hereinafter, an embodiment of the present invention will be described based on the drawings.
First Embodiment
[1] Overall Configuration of Acoustic Lighting Control System 1 An acoustic lighting control system 1 according to a first embodiment of the present invention is shown in FIG. The acoustic lighting control system 1 is a system that simultaneously performs audio equipment control operation in DJ performance and lighting equipment control performed together with audio equipment control, and includes a DJ controller 2, a computer 3, a speaker 4, and a lighting device 5.

The DJ controller 2 is a main body of a DJ apparatus operated by the operator, and is connected to the computer 3 via the communication cable 6.
The DJ controller 2 includes left and right decks D1 and D2, and the decks D1 and D2 are provided with a jog dial 2A, a volume adjustment knob 2B, a performance pad 2C, and the like. Also, the DJ controller 2 includes a mixer M1 between the left and right decks D1 and D2, and the mixer M1 adjusts the output of the reproduction signal output from the left and right decks D1 and D2.
The operator operates the left and right decks D1 and D2 to perform reproduction control operation of music data reproduced by each deck, and performs DJ performance.
Such a DJ controller 2 is connected to the speaker 4 via the analog cable 7, and a voice corresponding to the DJ performance by the operator is output from the speaker 4.

The computer 3 is stored in the computer 3 or music data stored in the optical disc inserted in the DJ controller 2 based on an audio device control operation signal output by the operator operating the DJ controller 2. The sound data corresponding to the reproduction control operation inputted to the DJ controller 2 is applied to the music data, outputted to the DJ controller 2, and the audio corresponding to the operation of the operator is outputted from the speaker 4 through the analog cable 7. .
Further, the lighting device 5 is connected to the computer 3 via the communication cable 8.

The lighting device 5 performs lighting in a live space and an event space, and includes various lighting devices 5A frequently used as live equipment.
The lighting device 5A is often used for stage lighting, and is, for example, a perlite, a strobe light, a moving head, or the like. In these lighting devices 5A, parameters such as the irradiation direction and the operation speed can be designated by the devices in addition to the intermittent light emission and the brightness.

In order to control these parameters, the lighting devices 5A of the lighting device 5 respectively conform to, for example, the DMX 512 standard, and are connected to each other based on the same standard, and transmit lighting control signals according to the standard. , And each lighting device 5A can perform desired lighting.
Although the DMX 512 standard is a standard standard in the stage lighting field, the connection of the computer 3 and the lighting device 5 is not limited to the same standard, and may be based on another standard.

Further, a CCD camera 9 as a light emission timing detection unit is connected to the computer 3 via a communication cable 9A such as USB.
The CCD camera 9 captures an image of the lighting device 5 on and off in time series. The captured image is output to the computer 3 via the communication cable 9A. The light emission timing detection unit is not limited to the CCD camera 9. For example, a CMOS sensor, a photodiode or the like may be adopted. In short, as long as the light emission timing of the illumination device 5 can be detected, Various things can be adopted.

[2] Functional Block Configuration of Acoustic Lighting Control System 1 FIG. 2 shows a functional block diagram of the acoustic lighting control system 1 as a lighting control device. The computer 3 includes a music information processing unit 3A and a lighting information processing unit 3B.

The music information storage unit 10 is configured of a storage device such as a hard disk that stores music information to be played. To determine the performance target, the operator operates the DJ controller 2 to select a music to be played on the deck D1 or a music to be played on the deck D2 and output the selected music to the music reproduction processing unit 11.
The music reproduction processing unit 11 reproduces the music selected on the decks D1 and D2. The reproduction control signal generated by the operator operating the jog dial 2A, the volume adjustment knob 2B, the performance pad 2C, etc. of the DJ controller 2 is input to the music reproduction processing unit 11, and the DJ performance performed by the operator A music reproduction process is performed according to the request.

The music structure analysis unit 12 analyzes the music structure to be reproduced.
Specifically, the music structure analysis unit 12 uses FFT (Fast Fourier Transform) analysis or the like to construct an intro, a melody, a hook, an outro, etc., which constitute music. The structural analysis of the music structure characteristic section is performed, or the sound below a predetermined frequency is detected using an LPF (Low Pass Filter), and the analysis of the beat position, the BPM, etc. is performed.
The music structure analysis unit 12 may be performed by an external device or the like, and in that case, the music analysis information acquisition unit 13 acquires an analysis result performed by the external device or the like.

The illumination information processing unit 3B is a part that processes illumination information, and includes a music analysis information acquisition unit 13, a timing adjustment unit 14, and an illumination control unit 15.
The music analysis information acquisition unit 13 acquires the music analysis information analyzed by the music structure analysis unit 12 and acquires beat timing information included in the music analysis information. The acquired beat timing information is output to the timing adjustment unit 14.

The timing adjustment unit 14 synchronously adjusts the light emission timing of the illumination device 5 captured by the CCD camera 9 and the beat timing information acquired by the music analysis information acquisition unit 13.
Specifically, the timing adjustment unit 14 outputs a control signal that causes the illumination control unit 15 described later to output the illumination control signal at the same interval at the same timing as the beat timing information.
The timing adjustment unit 14 detects the light emission timing of the illumination device 5 captured by the CCD camera 9 and compares it with the acquired beat timing information. As a result of comparison, when a delay is detected in the light emission timing detected by the CCD camera 9, the timing adjustment unit 14 starts the output of the illumination control signal by the illumination control unit 15 compared to the control signal to the music reproduction processing unit 11. The light emission timing detected by the CCD camera 9 is made to coincide with the beat timing information.

  In the present embodiment, the timing adjustment unit 14 performs synchronization adjustment based on the beat timing information acquired by the music analysis information acquisition unit 13, but the present invention is not limited to this. For example, the timing adjustment unit 14 performs synchronization adjustment by using an audio test signal such as a rectangular wave or a pulse wave and setting an audio rising point on audio data at which the audio test signal exceeds a predetermined threshold as audio output timing. May be

  The illumination control unit 15 acquires the reproduction position of the music reproduction processing unit 11, generates an illumination control signal according to the music structure feature section analyzed by the music structure analysis unit 12, and outputs the illumination control signal to the lighting device 5. Under the present circumstances, the illumination control part 15 outputs the illumination control signal which adjusted the light emission timing of the lighting equipment 5A which comprises the illuminating device 5 in consideration of the timing of an output start of the control signal synchronized adjusted by the timing adjustment part 14 Do. Generally, adjustment is made so that the light emission timing matches the beat timing information, but not limited to this, the output of the beat timing information may be delayed to match the light emission timing.

[3] Operation and Effects of the Embodiment According to the present embodiment as described above, the acoustic illumination control system 1 includes the CCD camera 9, the music analysis information acquisition unit 13, and the timing adjustment unit 14. The light emission timing of the actual lighting device 5 can be detected by the camera 9, and the deviation from the beat timing information can be adjusted based on the actual detection result.
Further, since the acoustic illumination control system 1 can be constructed only by adding only the CCD camera 9 as hardware, simplification can be achieved.

Second Embodiment
Next, a second embodiment of the present invention will be described. In the following description, parts that are the same as the parts described above are given the same reference numerals and descriptions thereof will be omitted.
In the first embodiment described above, music is detected by detecting the actual light emission timing of the lighting device 5 using the CCD camera 9 and adjusting it in synchronization with the beat timing information acquired by the music analysis information acquisition unit 13. The synchronization adjustment between the beat timing in the reproduction process and the light emission timing of the lighting device 5 is performed.

On the other hand, in the present embodiment, as shown in FIG. 3, the acoustic illumination control system 20 is different from the CCD camera 9 in that the microphone 21 is provided.
The microphone 21 as an audio output timing detection unit is connected to the computer 3 via a communication cable 21A such as USB. The microphone 21 need not be connected by a wired cable, and may be connected by wireless such as a wireless LAN, for example. If the microphone 21 is connected wirelessly, the acoustic lighting control system 20 can detect the audio output at any position such as a concert hall to be installed, which is more preferable.

FIG. 4 shows a functional block configuration of the acoustic lighting control system 20 in the present embodiment. The computer 3 includes a music information processing unit 3A and a lighting information processing unit 20B, as in the first embodiment.
The illumination information processing unit 20B includes a timing adjustment unit 22 and an illumination control unit 15. The timing adjustment unit 22 receives the audio output timing detected by the microphone 21 and the light emission timing imaged by the CCD camera 9 .

The timing adjustment unit 22 synchronously adjusts the audio output timing detected by the microphone 21 and the light emission timing imaged by the CCD camera 9.
Specifically, the timing adjustment unit 22 outputs a control signal for causing voice output at a constant interval to the music reproduction processing unit 11, and at the same time a control signal for causing a lighting control signal to be output at the same interval and timing. Output to 15. Thereafter, the timing adjustment unit 22 compares the light emission timing input from the CCD camera 9 with the audio output timing input from the microphone 21. As a result of comparison, when the light emission timing is detected behind the audio output timing, the timing adjustment unit 22 accelerates the start of the output of the illumination control signal by the illumination control unit 15 and performs synchronous adjustment with the audio output timing. On the other hand, when the audio output timing is behind the light emission timing, the timing adjustment unit 22 delays the start of the output of the illumination control signal by the illumination control unit 15 and performs synchronization adjustment with the audio output timing.

  According to the present embodiment, it is possible to receive the same operation and effect as those of the first embodiment described above. In addition, the microphone 21 and the CCD camera 9 actually detect the audio output timing and the light emission timing. Since synchronization adjustment is performed, highly accurate audio output and light emission timing synchronization adjustment can be performed.

Third Embodiment
Next, a third embodiment of the present invention will be described.
In the first embodiment described above, the light emission timing of the lighting device 5 is detected by the CCD camera 9, and the light emission timing of the lighting device 5 is synchronized with the beat timing information included in the music analysis information.
On the other hand, in the acoustic lighting control system 30 of the present embodiment, as shown in FIG. 5, the lighting control signal output from the computer 3 passes through the I / F box 31 serving as a processing block for switching the interface. When output to the lighting device 5, the output of the I / F box 31 is returned to the computer 3 via the cable 31B, and based on the time difference of the output of the illumination control signal of the I / F box 31, The difference is that synchronization adjustment is performed.

The I / F box 31 converts, for example, a lighting control signal of the USB standard output from the computer 3 through the communication cable 8 into a lighting control signal of the DXM 512 standard, and the lighting device 5 via the cable 31A of the DXM 512 standard. Output to In this embodiment, the synchronization adjustment is performed by eliminating the delay due to the conversion of the interface standard.
FIG. 6 shows a functional block configuration of the acoustic lighting control system 30 according to the present embodiment. The computer 3 includes the music information processing unit 3A and the illumination information processing unit 30B as in the first embodiment.

The illumination information processing unit 30B includes a first control signal acquisition unit 32, a second control signal acquisition unit 33, a timing comparison unit 34, a timing adjustment unit 35, and the illumination control unit 15.
The first control signal acquisition unit 32 acquires the illumination control signal output from the illumination control unit 15, and outputs the acquired timing to the timing comparison unit 34.
The second control signal acquisition unit 33 as a control signal acquisition unit acquires the illumination control signal output from the I / F box 31 via the cable 31B branched from the cable 31A, and acquires the acquired timing as a timing comparison. Output to the unit 34.

The timing comparison unit 34 compares the output timing of the illumination control signal acquired by the first control signal acquisition unit 32 with the output timing of the illumination control signal acquired by the second control signal acquisition unit 33, and determines the time difference. calculate.
The timing adjustment unit 35 outputs, to the illumination control unit 15, the timing at which the start of the output of the illumination control signal is advanced according to the time difference of the output timing of the illumination control signal calculated by the timing comparison unit 34.
The illumination control unit 15 starts output of the illumination control signal, taking beat timing information from the music structure analysis unit 12 into consideration with the output start timing adjusted by the timing adjustment unit 35.
Also by such this embodiment, the same operation and effect as the above-mentioned embodiment can be enjoyed.

  DESCRIPTION OF SYMBOLS 1 ... Acoustic lighting control system, 2 ... DJ controller, 2A ... Jog dial, 2B ... Volume adjustment knob, 2C ... Performance pad, 3 ... Computer, 3A ... Music information processing part, 3B ... Lighting information processing part, 4 ... Speaker 5 ... illumination apparatus, 5A ... illumination apparatus, 6 ... communication cable, 7 ... analog cable, 8 ... communication cable, 9 ... CCD camera, 9A ... communication cable, 10 ... music information storage unit, 11 ... music reproduction processing unit, 12 ... Music structure analysis unit, 13 ... music analysis information acquisition unit, 14 ... timing adjustment unit, 15 ... illumination control unit, 20 ... acoustic illumination control system, 20B ... illumination information processing unit, 21 ... microphone, 21A ... communication cable, 22 ... Timing adjustment unit, 30: acoustic lighting control system, 30B: illumination information processing unit, 31: I / F box, 31A: cable 31B ... cable, 32 ... first control signal acquisition unit, 33 ... second control signal obtaining unit, 34 ... timing comparing section, 35 ... timing adjuster, D1 ... deck, D2 ... deck, M1 ... mixer.

Claims (4)

A lighting control device that controls lighting equipment according to reproduction of music,
A light emission timing detection unit that detects a light emission timing of the lighting device;
An audio output timing detection unit that detects an audio output timing of the music;
A timing adjustment unit for synchronously adjusting at least one of the light emission timing detected by the light emission timing detection unit and the audio output timing detected by the audio output timing detection unit to the other timing; A lighting control device characterized by comprising. In the lighting control device according to claim 1,
The illumination control device, wherein the timing adjustment unit synchronously adjusts an audio rising point on audio data based on the audio output timing, instead of the audio output timing detected by the audio output timing detector. In the lighting control device according to claim 1,
The control signal output unit further includes a control signal acquisition unit that acquires a control signal to the lighting device after the control signal output to the lighting device passes through a processing block leading to the lighting device.
The illumination control device, wherein the light emission timing detection unit detects a timing of acquiring a control signal to the lighting apparatus as the light emission timing. In the lighting control device according to claim 1,
The music analysis information acquisition unit further acquires music analysis information including beat timing information of the music,
The lighting control device, wherein the audio output timing detection unit detects beat timing information acquired by the music analysis information acquisition unit as audio output timing.

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