JPS61161694A - Music responsive illuminator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application and Objectives] The present invention relates to an 8-music responsive lighting device, and particularly to a device that can change the lighting state according to the degree of level change or rhythm of an input music signal. It is.

It is an object of the present invention to enable music to be enjoyed not only by hearing it with the ears but also by seeing it visually, and to provide an audible emotion to the music being played when dancing to the music. By providing a music-responsive lighting device that can create a visual psychological synergy effect (hereinafter referred to as "one-color auditory synesthesia" or simply "synesthesia J") in order to further enhance the mood and atmosphere. be.

(Technical background) As is well known, music played (played) from a music playback device such as a stereo uses the auditory organs such as the eardrum to stimulate the cerebrum, causing emotions such as happiness, anger, sadness, etc. cause, also
It induces physical movements appropriate to the atmosphere of the music. This means that @ (music), which is a physical phenomenon, causes a psychological effect once it reaches the human ear. It has been statistically investigated using the following method.

To give an example of the research results, fast rhythmic songs usually induce a light and passionate feeling, while slow songs generally give rise to a quiet and somber feeling. Also,
As the tempo quickens, a heightened sense of emotion can be seen.

On the other hand, color (hue, color scheme) is a physical phenomenon caused by visible light, which is a type of electromagnetic wave. When this is transmitted to the cerebrum through the eyes, it changes color (brightness, saturation).

By recognizing the difference in hue or color scheme, we can create ``warm'', ``bitter'', ``bright'', ``heavy'', and ``light''.
It is also well known that it evokes a variety of emotions, such as ``happy, tragic,'' and ``passionate.'' This is called color rendering. To give an example of color rendering, orange gives a warm feeling, and blue gives a cold feeling. of,
Olive color gives off a sour feeling, while red gives off a passionate feeling.

It has also been confirmed that a color scheme of two or more villages evokes even more types of emotions.

Therefore, although these colors and music are physically in completely different dimensions, they are human sensations.

Color auditory synaesthesia experiments have also confirmed that there is a significant correlation if psychological phenomena are used as the mediator.

Here, the rhythm or tempo of a song can be determined by the strength of the sound, that is, the magnitude of the signal level, and it is also known that most hues are created by a combination of just three colors (called the "three primary colors"). . In the case of colored light, the three primary colors are red, green, and helmet, and by combining these, almost all colors from red to reddish-purple can be created.

In view of the above-mentioned facts, the device of the present invention has made it possible to enjoy music that is originally enjoyed by hearing with the ears, but also with the eyes. This device has a relatively simple configuration and has been realized by electrically detecting it and lighting the brightness and color (including color scheme) according to the detection result so that you can enjoy music electrically as well. An embodiment thereof will be described with reference to one drawing.

〔Example〕

FIG. 1 is a block diagram of a first embodiment of the device of the present invention. In the figure, an input music signal input from a microphone (hereinafter abbreviated as "microphone") 1 is amplified by a microphone amplifier 2 to form a waveform as shown in FIG. (32 is a band pass filter, 33 is a bypass filter)
It is also sent to a level change layer detection section 7, which will be described later. The filters 31 to 33 are provided to divide the audible frequency band into a low range, a middle range, and a high range, respectively. Rectifying and smoothing circuits 41 to 43 are connected to each of the filters 31 to 33, respectively, and the signals are converted into signals having appropriate time constants. Each time constant is set to match the auditory characteristics.
The lower the frequency band, the longer it is selected. The respective outputs are supplied to lamp drive circuits 51 to 53 that constitute the lamp drive section 5, respectively.

On the other hand, the input signal sent to the level change detection section 7 (see FIG. 2(A)) is sent to the envelope detection circuit 9 via the buffer amplifier 8, and is inputted as shown in FIG. 2(B). Output as a signal envelope.

The above envelope output is Schmitt trigger circuit 1 for binary conversion.
0 to a predetermined threshold value V as shown in FIG. 2(C).
It becomes a high level when it exceeds +-+, and is converted into a digital signal that becomes a low level when it becomes lower than a predetermined threshold v lower than VH (adjust these thresholds appropriately with a variable resistor, etc.) Given). The signal is then supplied to the frequency detection section 11. The frequency detection section 11 is, for example, a monostable multivibrator 12 as shown in FIG.
and a time constant circuit 13, where the output level is converted into an output level according to the number of pulses per unit time. That is, the monostable multivibrator 12 prevents the input level from changing by outputting a pulse of a constant width at the timing when the output of the binary conversion Schmitt trigger circuit 10 becomes high level, as shown in FIG. 2(D). The pulse signal is converted into a number of pulses, and the time constant circuit 13 at the next stage converts this pulse signal into a signal corresponding to the number of pulses.

The output of the time constant circuit 13 is supplied via the buffer 7 amplifier 14 as a control signal to the lamp drive circuits 51 to 53. Therefore, the lamp drive circuits 51 to 53 cause each of the lamps 61 to 63 to emit light at a brightness that corresponds to the magnitude of each input signal and the control signal.

These lamps 61 to 63 are housed in the lamp house 15, as shown in a sectional view in FIG.

In FIG. 3, 16 is a light reflecting section, 11 is a diffusion lens, and 18 is an electric circuit below the microphone amplifier 2 shown in FIG. It goes without saying that the electric circuit 18 and the microphone 1 may be separated from the lamp house 15 and connected to each other by a cord.

Now, if the colors of the lamps 61, 62 and 63 are blue, green, and red, respectively, then the low frequency music component is blue.

A green lamp is emitted for mid-range music components, and a red lamp is emitted for high-range music components (a response appropriate for sympathizers), and music with many level changes per unit time, such as fast-tempo music, is brighter. It is illuminated, and the brightness changes according to the change in tempo, and the feeling you receive from the song and the emotion you receive from the eup (changes in) become natural and appropriate for a sympathetic party.

For example, when music increases the tempo to express heightened emotions, it is expressed as a change in brightness even though there is no change in color because the pitch does not change much.

Next, a second embodiment of the device of the present invention will be described with reference to FIG. Note that parts having the same configuration as in FIG. 1 are given the same numbers, and their explanations will be omitted.

In this embodiment, filters 191 to 193 and envelope detection circuits 91 to 93 are provided for each predetermined frequency system, and the outputs of the envelope detection circuits 91 to 93 are supplied to lamp drive circuits 51 to 53, which are CΔ, respectively. and a Schmitt trigger circuit 10 for binary conversion. ~103, respectively. Therefore, at the level of each frequency band system, the lamps 61 to 6
3 are illuminated correspondingly, and the brightness of the lamps 61 to 63 changes in accordance with the level change per unit time of each frequency band system. In this way, by independently generating control signals, it is possible to produce lighting effects that more closely match the sympathizers.

Next, a third embodiment of the apparatus of the present invention will be described with reference to FIG. 5 and subsequent figures. Note that parts having the same configuration as in FIG. 1 are given the same numbers, and their explanations will be omitted.

If the incoming music signal has a waveform as shown in FIG. 6(A), the output waveform of the envelope detection circuit 4 will be as shown in FIG. ) is converted into a waveform (sawtooth wave). 21 is A/D (
The differential circuit 20 is an A/D converter in which the signal from the differentiating circuit 20 is A/D converted at a predetermined sampling frequency. This sampling frequency is supplied from the Δ/D control unit 22a of the microprocessor 22 configured as shown in FIG. Note that the microprocessor 22
operates according to the 70-diameter diagram shown in FIG. A memo consisting of this microprocessor 22, RAM for data storage, ROM for program memory, etc.! J-23 is
These are the elements that make up the logic control section.

The following explanation will be given according to the flowchart shown in FIG. C), Fig. 7 Peak detection section 22c) L., In step 31, the peak position and level are stored in the memory 23.Steps 32 to 36 are the operations of the rhythm judgment section 22d, and first, in step 32, the above detection is performed. The peak interval is calculated from the peak data obtained.Next, in step 33, the repetition period is estimated from the peak level and the peak interval, and one rhythm pattern is determined by matsumasu.The result is prepared in advance. It is compared with the rhythm pattern in the immersion memory 23 (step 34). As a result of the comparison, it is determined whether there is a matching pattern? Has the minimum time for forming the rhythm been reached yet? If "NO", the rhythm pattern is repeated again. The process returns to step 31. If rYesj, it is determined whether the pattern is different from the previous pattern, and if there is no change, the process similarly returns to step 31.

If it has changed, step 37 is entered, and the color data (R, G) corresponding to the new rhythm pattern is entered.

B), the color conversion unit 22e), the next step 3
At step 8, the A/D converter 21 outputs the three primary colors of RGB to the D/A converter 24 (D/A control unit 22'').Then, the process returns to step 31 again.
The interrupt routine operates periodically as shown in the flowchart, and the result (A/D conversion output) is output at step 40.
The operation of writing the data into the memory 23 is performed.

In this way, according to the third embodiment of the device of the present invention, by determining the type of rhythm, including the fast rhythm (tempo), it is possible to determine the hue, color scheme, and brightness according to the incoming musical idea. It is possible to realize the long-awaited lighting, and it can have an excellent effect within the sympathizer party.

Note that the lighting device is not limited to the configuration shown in Figure 3, and may have a configuration in which each of the lamps 61, 62, and 63 is housed in a separate lamp house, and each lamp house is housed in a spotlight. It is also possible to use a sharply directional illumination light to mix colors on the light surface. Furthermore, if a set of illumination lights of three colors is provided and a plurality of sets thereof are provided, the color rendering property can be further increased.

Furthermore, in the above description, an embodiment using a lamp as a light source has been described, but the invention is not limited to a lamp, and an illumination wall that is a surface light source may be used. Historically, LEDs have been used as light emitting devices.
(light emitting diode), color EL (electroluminescence), or color 1-CI), (liquid crystal)
, a color cathode ray tube may also be used. In this case, the illumination effect will be further doubled if a configuration is adopted in which multiple rounds of light emitting elements are arranged on the ceiling, wall, etc.

Note that instead of picking up the input signal with a microphone and supplying it to the electric circuit 18 below the microphone amplifier 2, it may be configured to directly supply a line input signal from an audio device such as a stereo or an electronic musical instrument.

〔effect〕

Since the device of the present invention is configured as described in detail above, it is possible to create a lighting effect that is appropriate for the atmosphere of the music.
When listening to music, you can enjoy it not only by listening to it with your ears, but also by seeing it with your eyes. When dancing to music, you can further enhance the feeling and atmosphere of the music being played, and enjoy the visual psychological effect. It can have excellent effects, such as being able to create a sense of synesthesia.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a first embodiment of the device of the present invention, Figs. 2 and 6 are signal waveform diagrams for explaining operation, and Fig. 3 is a longitudinal section (of the lamp section) of an embodiment of the device of the present invention. 4 is a block diagram of a third embodiment of the device of the present invention, FIG. 5 is a block diagram of a third embodiment of the device of the present invention, and FIG. 7 is a detailed block diagram of the main parts of the third embodiment, FIG. 8 is a flowchart illustrating the operation of the microprocessor. 1...Microphone, 2...Mic amplifier, 3.1
9... Filter, 4... Rectifying and smoothing circuit, 5... Lamp drive circuit, 6... Lamp, 7... Level change detection unit, 8°14... Buffer 7 amplifier, 9...・Bao I
I! i-line detection circuit, 10... Schmitt trigger circuit, 11... frequency detection section, 12... monostable multivibrator, 13... time constant circuit, 15.
... Lamp house, 18 ... Lamp driving lighting electric circuit, 20 ... Differentiation circuit, 21 ... AD converter, 22
...Microprocessor, 22a...Δ/D control section, 221)...Input section, 22c...Peak detection section,
22d...Rhythm ¥11 constant part, 22e...Color conversion part, 22f...D/8 to sin part, 23...Memory, 2
4...D/△ converter. Patent Applicant [] Victor Co., Ltd. Representative Odori Part-C (E). 11 Do-ゝFigure 7Figure 8 (B) Hand vF, Amendment October 1B, 1985 Patent Application No. 281017 2o Name of the invention Music-responsive lighting device 3, amendment person case Related Patent Applicant Address: 3-121-5 Moriya-cho, Kanayō-ku, Yokohama-shi, Kanagawa Prefecture
, Subject of amendment Detailed description of the invention column of Mei SOt and Drawing 6, Contents of amendment (1) “Each no” in Mei II, page 6, line 19 is amended to “this”. (Ibid., page 8, line 2, after [convert.]
(See Figure (E)). (■ Same as above, ``Mada'' on page 11, line 15 is corrected to ``Mata.''

Claims (5)

[Claims] (1) An envelope detection circuit that detects the envelope of an input music signal, a conversion circuit that converts the output of the envelope detection circuit into a binary value, and a frequency-voltage conversion of the output of the conversion circuit and a predetermined time constant. a frequency detection circuit for detecting the level change of the input music signal; a lighting drive section controlled by the output signal of the level change detection means; 1. A music-responsive lighting device, comprising: a lighting section supplied with an output signal of the lighting device, the brightness of the lighting section being changed in accordance with the amount detected by the level change amount detection means. (2) The level change detection means includes a plurality of filter circuits that divide the entire frequency band of the input music signal into a plurality of bands, and detects an envelope for each output of each of the filter circuits. A detection circuit, a plurality of conversion circuits that convert the output of each of the envelope detection circuits into a binary value, and a plurality of frequency detection circuits that convert the output of each of the conversion circuits into a frequency voltage and add a predetermined time constant. A music-responsive lighting device according to claim 1, characterized in that it comprises: (3) consisting of a rhythm detection means for detecting the rhythm of an input music signal, a lighting drive section controlled by an output signal of the rhythm detection means, and an illumination section supplied with the output signal of the lighting drive section; A music-responsive lighting device, characterized in that the color of the lighting section is determined according to a pattern detected by a rhythm detection means. (4) Claim 1 or 3, wherein the lighting section includes a light source section of three primary colors, and changes brightness and/or hue in accordance with an output signal of the lighting driving section. The music-responsive lighting device described. (5) The rhythm detection means includes an envelope detection circuit, a differentiation circuit that differentiates the output of the envelope detection circuit, an AD conversion circuit that AD converts the output of the differentiation circuit, and an output signal of the AD conversion circuit. 4. The music-responsive lighting device according to claim 3, further comprising a logic control section that inputs and recognizes a pattern.