WO2014103118A1 - 音響再生装置 - Google Patents
音響再生装置 Download PDFInfo
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- WO2014103118A1 WO2014103118A1 PCT/JP2013/006280 JP2013006280W WO2014103118A1 WO 2014103118 A1 WO2014103118 A1 WO 2014103118A1 JP 2013006280 W JP2013006280 W JP 2013006280W WO 2014103118 A1 WO2014103118 A1 WO 2014103118A1
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- WIPO (PCT)
- Prior art keywords
- light emission
- light
- control signal
- beat
- speakers
- Prior art date
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- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000005236 sound signal Effects 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 description 16
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- 238000000034 method Methods 0.000 description 4
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- 230000001360 synchronised effect Effects 0.000 description 2
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- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/40—Rhythm
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/34—Indicating arrangements
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
- F21V33/0056—Audio equipment, e.g. music instruments, radios or speakers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/021—Indicator, i.e. non-screen output user interfacing, e.g. visual or tactile instrument status or guidance information using lights, LEDs, seven segments displays
- G10H2220/081—Beat indicator, e.g. marks or flashing LEDs to indicate tempo or beat positions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/403—Linear arrays of transducers
-
- 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
Definitions
- the present disclosure relates to a sound reproducing device having a display function by a light emitting element.
- Patent Document 1 describes that light emission of a plurality of LEDs (Light Emitting Diode) is controlled in accordance with the characteristics of reproduced audio data.
- Patent Document 2 describes a display device in which light emission of an LED matrix (pattern display unit) is controlled by a display microcomputer in accordance with an input signal.
- Patent Document 3 describes a sound interlocking light source driver that can express the intensity or silence of an audio signal by lighting / flashing of an LED.
- Patent Document 4 describes that the backlight of the LCD and the operation button group of the in-vehicle audio apparatus is controlled in accordance with the reproduced audio signal. That is, it is described that a trigger signal is generated when a reproduction audio signal exceeds a set threshold value, and the color of the light source is changed by the trigger signal.
- an object of the present disclosure is to provide an effect of display according to music by performing a display that changes according to music and performing a display that changes even when the music level drops or the music is interrupted. It is an object to provide a sound reproducing device capable of preventing the deterioration of the sound.
- the present disclosure includes a plurality of speakers, A plurality of light emitting elements provided in a part of each speaker or in the vicinity of each speaker; A detection unit that detects a beat of an audio signal reproduced by a speaker and outputs a detection signal corresponding to the beat; A light emission control signal output unit for outputting a light emission control signal for controlling the light emission mode of the light emitting element according to the detection signal; The light emission control signal output unit outputs a first light emission control signal corresponding to the detection signal, and controls a light emission mode of the light emitting element to a predetermined one when a period in which no beat is detected exceeds a set period. It is a sound reproducing device that outputs a light emission control signal.
- a light emitting element can be made to light-emit in a regular light emission mode. For example, when music is continuously played back, it is possible to prevent the display from disappearing between songs, and to prevent listeners from getting excited.
- the effect described here is not necessarily limited, and may be any effect described in the present disclosure.
- FIG. 1 illustrates an example of a configuration of a sound reproduction device according to an embodiment of the present disclosure.
- This embodiment is a stationary sound reproduction apparatus, which includes a sound source 1, a control unit 2, a speaker 3 including a plurality of, for example, six speakers, a part of each of the speakers 3, or each of the speakers 3.
- a plurality of, for example, six light emitting elements, for example, LEDs 4 are provided in the vicinity.
- the sound source 1 is a digital audio signal stored in a USB (Universal Serial Bus) memory, an audio signal reproduced from a disc-shaped recording medium such as a CD (Compact Disk), a broadcast audio signal received by a tuner, or the like.
- a digital audio signal from the sound source 1 is supplied to the signal processing unit 21 of the control unit 2.
- a plurality of channels of analog audio signals output from the signal processing unit 21 are supplied to the speaker 3 via the amplifier 22 and reproduced from the speaker 3 as sound.
- the signal processing unit 21 is composed of, for example, a DSP (Digital Signal Processor). For example, the signal processing unit 21 performs a decoding process on the compressed audio data.
- the signal processing unit 21 has a music analysis function.
- the music analysis function is a function for detecting a beat of the digital audio signal from the sound source 1 and outputting a beat detection signal synchronized with the timing of the beat.
- audio data is subjected to frequency analysis using Fourier analysis, low frequency components are extracted, and beats are detected from gains of the low frequency components.
- a beat detection method another method, for example, a 12-tone analysis method may be used.
- the beat is typically a bass beat, but is used in the present disclosure in the same meaning as rhythm and time signature.
- the beat detection signal generated by the signal processing unit 21 is supplied to the LED controller 23 as a trigger signal.
- the LED controller 23 generates a light emission control signal for controlling the light emission / non-light emission timing of the LED 4 and the brightness at the time of light emission according to the beat detection signal.
- the LED controller 23 includes a rewritable nonvolatile memory. This memory stores first and second light emission control signals for controlling the light emission pattern of the LED 4.
- the beat interval is long or short depending on the type of music, and beats may not be detected for a relatively long period. Furthermore, no beat is detected between songs whose titles are changed. Furthermore, depending on the type of music, the gain of the low frequency component may be low and the beat may not be detected for a relatively long period. In such a case, if the LED 4 is not caused to emit light, there is a problem that the period during which no decorative display is provided to the user becomes long, and the excitement or uplifting feeling caused by the display decreases or disappears. This problem is particularly serious when the sound reproducing device is used in a dark room.
- the second light emission for controlling the light emission pattern of the LED 4 when the period during which no beat is detected exceeds the set time.
- a control signal is generated.
- the first light emission control signal is a signal obtained by continuing a plurality of signals that define a light emission pattern (referred to as a short pattern) of the LED 4 for a predetermined period, for example, 300 [msec], starting from the timing of the beat detection signal. .
- the short pattern is a predefined light emission pattern.
- the second light emission control signal is a signal that defines a light emission pattern (referred to as an animation as appropriate) of the LED 4 in synchronization with, for example, a timing signal formed from a system clock signal.
- a plurality of types of short patterns and one animation are stored in the memory in advance. The types of short patterns and the order of occurrence of a plurality of short patterns are set so that attractive display is performed when they change in synchronization with the beat of the music to be played.
- a first light emission control signal is created and stored so that a display that matches the reproduction of music of a genre such as rock, Latin, reggae, and fusion occurs.
- the user may be able to generate the first and / or second light emission control signal according to his / her preference.
- the control unit 2 is provided with a system controller 5 for system control.
- the system controller 5 executes a plurality of functions, for example, by executing a program stored in the ROM, and generates a control signal for controlling each part of the sound reproduction device. Further, various operation signals input through a user interface (key switch, touch panel, etc.) (not shown) are supplied to the system controller 5.
- the light emission control signal output from the LED controller 23 is supplied to the LED 4 including a plurality of LEDs, and the brightness of the LED 4 changes according to the light emission control signal.
- the LED 4 is not limited to a single color LED, and may be configured to emit a plurality of colors. When light emission of a plurality of colors is possible, the colors may be switched.
- the sound reproducing device has an appearance as shown in FIG.
- Six speakers SP1 to SP6 as the speaker 3 are arranged in a horizontal row and the center of the speaker arrangement (the control unit 2 is arranged between the speakers SP3 and SP4.
- the speakers SP1 and SP6 are speakers for low-frequency reproduction.
- the speakers SP2 and SP3 are attached to a common enclosure, and the speakers SP4 and SP5 are attached to a common enclosure, and the speakers SP2 to SP4 are mid-high range reproduction speakers.
- a volume adjustment knob 24 is provided at the center of the front panel of the control unit 2.
- a ring-shaped light emitting unit 25 is provided along the outer periphery of the volume control knob 24.
- the ring-shaped light emitting unit 25 is composed of a plurality of LEDs and a light guide.
- a power switch 26, a bass boost switch 27, USB memory mounting portions 28a and 28b, and the like are provided on the front panel.
- W-shaped light emitting portions 29 a and 29 b are provided in the left and right regions of the volume adjustment knob 24.
- the light emitting units 29a and 29b are composed of a plurality of LEDs and a light guide.
- Speakers SP1 to SP6 are, for example, external magnetic type dynamic speakers, and the speaker SP1 has the configuration shown in FIG.
- the speaker SP1 will be described as an example, but the other speakers SP2 to SP6 have the same configuration as the speaker SP1.
- a diaphragm (cone paper) 34 is attached to the frame 31 via an edge 32 and a damper 33.
- a voice coil 35 is provided at the base of the diaphragm 34.
- the voice coil 35 is positioned in a magnetic gap formed by the ring magnet 36 and the yoke 37, the voice coil 35 is displaced according to the music signal, and the diaphragm 34 vibrates to reproduce music.
- a front frame 38 composed of two arms that cross in an X shape is provided on the front surface of the speaker, and an LED 40 is attached to the back surface of the plate 39 at the cross position of the front frame 38.
- the light emission direction of the LED 40 irradiates the diaphragm 34 from the front surface.
- a material of the diaphragm 34 with a highly reflective material such as mica, the reflectance of the diaphragm 34 is increased. Therefore, the light of the LED 40 is reflected forward by the diaphragm 34, and the speaker SP1 is displayed brightly.
- the LED 40 may be a single-color light source that emits one of white, blue, red, green, and the like, and is a multicolor that can selectively emit a plurality of these colors. It may be a light source. Furthermore, you may use light emitting elements other than LED.
- FIG. 5 shows a state transition.
- the display operation is controlled by a system controller 5 provided in the control unit 2.
- Each state is as follows.
- State ST0 Start state. The state transition starts from the state ST0 first.
- State ST1 State waiting for beat detection. In this state, the LED 4 is not emitting light or displaying a single color. That is, there is no movement of light. Animation is not displayed.
- State ST2 A state in which a predefined short pattern is reproduced in synchronization with the beat detection signal. In this state, a short pattern is presented.
- State ST3 State waiting for beat detection. Unlike the state ST1, the state ST3 is a state where there is a movement of light. For example, music and asynchronous animation are presented.
- the control operation will be described with reference to FIG.
- the state ST0 when the power is turned on (boot) or the title is changed, the timer starts and the control shifts to the state ST1.
- the state ST1 until the beat is detected, all the LEDs are set to non-light emission or single color light emission, and no animation is displayed.
- state ST1 when a beat is detected within a predetermined period (for example, 5 [sec]) after the timer is started, control is shifted to state ST2 and a short pattern presentation starts. When the presentation of one short pattern is completed, the timer starts and returns to the state ST1. In the state ST2, when a new beat is detected during presentation of a certain short pattern, the beat is ignored.
- a predetermined period for example, 5 [sec]
- State ST3 is a state waiting for beat detection, and an animation asynchronous with music is presented. In this state ST3, when a beat is detected, presentation of a short pattern is started, and control transitions to state ST2.
- FIG. 6A represents the detected beat. Although a beat is schematically shown, in the signal processing, the beat detection signal is a pulse signal indicating a timing reference.
- FIG. 6B represents the short pattern presented. Short pattern 1 is presented in synchronization with the beat, and short pattern 2 is presented in synchronization with the next beat.
- the display periods of the short pattern 1, the short pattern 2,... are set to substantially the same value, for example, 300 [msec].
- the period from the end of each short pattern period to the next beat is a period of non-light emission or monochromatic light emission, as indicated by hatching.
- the timer starts after the short pattern starts. For example, if a beat is not detected for 5 [sec] or longer, a time-out occurs and the control shifts to the state ST3.
- the short pattern period described above is set based on the general characteristics of the music to be played. That is, beats having a period shorter than 300 [msec] are relatively few. The display of animation in state ST3 will be described later.
- the short pattern shown in FIG. 8 starts from a state where all the LEDs of the control unit 2 and the speaker are not emitting light, and each LED gradually becomes brighter in the direction of arrow F until all the LEDs emit light. Next, a reverse change (change in which each LED gradually darkens) is performed in the direction of the arrow R.
- the short pattern shown in FIG. 9 repeats the light emission pattern having a temporally opposite phase alternately as indicated by arrows FR. That is, one light emission pattern is (SP1: non-light emission, SP2: light emission, SP3: non-light emission, W-shaped light emission part: light emission, SP4: non-light emission, SP5: light emission, SP6: non-light emission). Other light emission patterns of the next timing are (SP1: light emission, SP2: non-light emission, SP3: light emission, W-shaped light emission part: non-light emission, SP4: light emission, SP5: non-light emission, SP6: light emission). The number of repetitions may be one time or multiple times.
- the short pattern shown in FIG. 10 is a total of seven components including the speakers SP1 to SP6 and the control unit 2 arranged in the horizontal direction. To shift. In the direction indicated by arrow F, the position of the light emitting LED shifts sequentially from left to right as viewed in the figure, and in the direction indicated by arrow R, the position of the light emitting LED shifts sequentially from right to left.
- the short pattern shown in FIG. 11 is a pattern in which all of the LEDs added to each of the seven components of the speakers SP1 to SP6 and the control unit 2 are non-light emitting and all are light emitting. As indicated by the arrow FR, it repeats alternately. The number of repetitions may be one time or multiple times.
- the short pattern shown in FIG. 12 repeats the spatially opposite phase light emission pattern alternately as indicated by the arrows FR.
- the number of repetitions may be one time or multiple times. That is, one light emission pattern is (SP1: light emission, SP2: light emission, SP3: light emission, left W-shaped light emission part: light emission, right W-shaped light emission part: non-light emission, SP4: non-light emission, SP5 : No light emission, SP6: no light emission).
- SP1 non-light emission
- SP2 non-light emission
- SP3 non-light emission
- left W-shaped light emitting portion non-light emitting
- right W-shaped light emitting portion light emission
- SP4 Light emission
- SP5 light emission
- SP6 light emission
- Example of animation An example of the animation presented in state ST3 will be described with reference to FIGS.
- the animation starts with a pattern in which all of the LEDs added to the total of seven components of the speakers SP1 to SP6 and the control unit 2 are not emitting light, and an arrow F As shown, each LED gradually becomes brighter and changes until each LED emits light at maximum brightness. Next, as indicated by the arrow R, all the LEDs gradually become dark and change until all the LEDs are not emitting light. The animation repeats this change.
- the luminance of all LEDs gradually increases during the period ta, and when the maximum luminance is reached, the luminance gradually decreases to the lowest luminance (non-light emission) during the period tb. To do. In the period tc, all LEDs are not emitting light. Changes in the periods ta, tb, and tc are repeated. In the animation, since the beat is not detected, the LED is controlled in synchronization with the timing signal formed from the system clock.
- the change in the luminance of the LED is slower than that of the short pattern, and the light emission pattern is simple so that the brightness changes simultaneously.
- ta 2664 [msec]
- tb 2664 [msec]
- one cycle is 6660 [msec] (6.66 [sec]).
- animation By making the change in the luminance of the LED slow and making the light emission pattern simple, it is possible to prevent unnecessary display in a state where no beat is detected. Further, by presenting the animation, it is possible to prevent the excitement or uplifting sensation resulting from the change in the brightness of the LED during beat detection from being significantly reduced or lost.
- the present disclosure expresses dynamics by showing the difference in brightness of light, and even if a part where music becomes calm and beats do not enter is sandwiched, the overall mood is not broken, and it is as if human beings Can perform illumination with a good atmosphere as if operating on the spot.
- a plurality of speakers are arranged in the horizontal direction, but the present disclosure can be applied to a case where the speakers are arranged in the vertical direction. Furthermore, the present disclosure can be applied to an audio reproduction device in which a plurality of speakers that are applied to surround reproduction are arranged independently. Furthermore, elements other than LEDs may be used as the light emitting elements. Furthermore, the audio signal may be supplied to the speaker and / or the drive signal may be supplied to the LED by wireless communication.
- this indication can also take the following structures.
- Multiple speakers A plurality of light emitting elements provided in a part of each of the speakers or in the vicinity of each of the speakers; Detecting a beat of an audio signal reproduced by the speaker, and outputting a detection signal corresponding to the beat;
- a light emission control signal output unit that outputs a light emission control signal for controlling a light emission mode of the light emitting element according to the detection signal;
- the light emission control signal output unit outputs a first light emission control signal corresponding to the detection signal, and when the period during which the beat is not detected exceeds a set period, the light emission mode of the light emitting element is set to a predetermined one.
- a sound reproducing device that outputs a second light emission control signal to be controlled.
- the sound reproducing device (2) The sound reproducing device according to (1), wherein the plurality of speakers are arranged side by side in a horizontal or vertical direction. (3) The sound reproducing device according to any one of (1) and (2), wherein the light emitting element irradiates a diaphragm of the speaker. (4) The detection unit and the light emission control signal output unit are integrally configured as a control unit, and a light-emitting element that emits light according to the detection signal is provided to the control unit. (1) Any one of (2) and (3) The sound reproducing device described in 1. (5) The sound reproduction according to any one of (1), (2), (3), and (4), wherein the first light emission control signal is a signal that controls a light emission mode in a predetermined period that starts in synchronization with the detection signal. apparatus.
- the sound reproducing device according to any one of (1), (2), (3), (4), and (5) configured to ignore beats detected during the predetermined period.
- (1) (2) (3) (4) (5) and (6) The light emission mode of the said predetermined period exists in multiple types, and the order of the light emission mode of the said predetermined period is preset. Sound reproduction device.
- the second light emission control signal changes the light emission mode of the light emitting element at a constant period.
- (1) (2) (3) (4) (5) (6) and (7) The sound reproducing device described.
- the sound reproduction device according to any one of (1), (2), (3), (4), (5), (6), (7), and (8), wherein the period is longer than the predetermined period. .
- the light emission mode is simpler than that of the predetermined period (1) (2) (3) (4) (5) (6) (7) (8) and (9) The sound reproducing device according to any one of the above.
- SP1 to SP6 ... Speakers ST0, ST1, ST2, ST3 ... State 1 ... Sound source 2 ... Control unit 3 ... Speaker 4 ... LED 5 ... system controller 21 ... signal processing unit 23 ... LED controllers 29a, 29b ... W-shaped light emitting unit 34 ... diaphragm 40 ... LED
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Abstract
Description
スピーカのそれぞれの一部またはスピーカのそれぞれの近傍に設けられる複数の発光素子と、
スピーカによって再生されるオーディオ信号のビートを検出し、ビートと対応する検出信号を出力する検出部と、
発光素子の発光態様を検出信号に応じて制御する発光制御信号を出力する発光制御信号出力部とを備え、
発光制御信号出力部は、検出信号に応じた第1の発光制御信号を出力すると共に、ビートが検出されない期間が設定期間を超えると、発光素子の発光態様を所定のものに制御する第2の発光制御信号を出力する音響再生装置である。
<1.一実施の形態>
<2.変形例>
なお、以下に説明する実施の形態は、本開示の好適な具体例であり、技術的に好ましい種々の限定が付されているが、本開示の範囲は、以下の説明において、特に本開示を限定する旨の記載がない限り、これらの実施の形態に限定されないものとする。
「音響再生装置の構成」
図1は、本開示の一実施の形態による音響再生装置の構成の一例を示す。この一実施の形態は、据え置き型の音響再生装置であって、音源1と、コントロールユニット2と、複数例えば6個のスピーカを含むスピーカ3、スピーカ3のそれぞれの一部またはスピーカ3のそれぞれの近傍に設けられる複数例えば6個の発光素子例えばLED4とを有する。
本開示の一実施の形態の表示動作の制御について図5を参照して説明する。図5は、状態遷移を表すものである。表示動作は、コントロールユニット2に設けられているシステムコントローラ5によって制御される。各状態は、以下のものである。
状態ST1:ビート検出を待っている状態である。この状態では、LED4が非発光または単色を表示している。すなわち、光の動きがない状態である。アニメーションが表示されない。
状態ST2:予め定義されたショートパターンをビート検出信号と同期して再生する状態である。この状態では、ショートパターンが提示される。
状態ST3:ビート検出を待っている状態である。状態ST1と異なり、状態ST3では、光の動きがある状態である。例えば音楽と非同期のアニメーションが提示される。
状態ST0において、電源をオン(ブート)またはタイトルをチェンジすると、タイマーがスタートし、状態ST1に制御が遷移する。状態ST1では、ビートが検出されるまで、全てのLEDが非発光または単色発光とされ、また、アニメーションが表示されない。
にビートが検出されると、状態ST2に制御が遷移してショートパターンの提示がスタートする。一つのショートパターンの提示が完了すると、タイマーがスタートして状態ST1に戻る。状態ST2において、あるショートパターンの提示中に新たなビートが検出される場合、そのビートが無視される。
する。
図7~図12を参照してショートパターンの第1乃至第6の例について説明する。
図7の矢印Fの変化において、最初の3個の発光パターンでは、スピーカSP1~SP6のそれぞれのLEDが非発光(黒丸で示す)の状態で、コントロールユニット2のW字状の発光部(図2および図3参照)のLEDの発光する個数が徐々に増加する。W字状の発光部の全てのLEDが発光してから後では、スピーカSP1~SP6のLEDの発光個数が徐々に増加する。すなわち、コントロールユニット2に隣接するスピーカSP3およびSP4のLEDが発光し、次に、スピーカSP2~SP5のLEDが発光し、最後に、スピーカSP1~SP6のLEDが発光する。矢印Fの方向の変化が終了すると、矢印Rで示すように、逆の変化を行う。例えば300[msec]の期間で、FおよびRの両方向の変化がなされる。
図13および図14を参照して、状態ST3において提示されるアニメーションの一例について説明する。アニメーションは、図13に示すように、スピーカSP1~SP6と、コントロールユニット2との合計7個の構成要素にそれぞれに付加されているLEDの全てが非発光のパターンからスタートして、矢印Fで示すように、各LEDが徐々に明るくなり、各LEDが最大輝度で発光するまで変化する。次に、矢印Rで示すように、全てのLEDが徐々に暗くなり、全てのLEDが非発光となるまで変化する。アニメーションは、この変化を繰り返す。
LEDの輝度の変化を低速とし、発光パターンを単純なものとすることによって、ビートが検出されない状態での必要以上の表示を防止できる。さらに、アニメーションを提示することによって、ビート検出時にLEDの輝度変化の結果もたらされた興奮または高揚の感覚が著しく低下したり、消失することを防止することができる。このように、本開示は、光の明るさの差を見せてダイナミックさを表現すると共に、音楽が穏やかになり、ビートが入らないようなパートを挟んでも、全体のムードを壊さず、まるで人がその場で操作しているかのような雰囲気の良い照明を行うことができる。
上述した説明では、複数のスピーカを水平方向に配置しているが、垂直方向にスピーカを配列する場合に対しても、本開示を適用することができる。さらに、サラウンド再生に適用される複数のスピーカを独立して配置する音響再生装置に対しても本開示を適用することができる。さらに、発光素子としては、LED以外の素子を使用しても良い。さらに、スピーカに対するオーディオ信号の供給、および/またはLEDに対する駆動信号の供給を無線通信によって行うようにしても良い。
(1)
複数のスピーカと、
前記スピーカのそれぞれの一部または前記スピーカのそれぞれの近傍に設けられる複数の発光素子と、
前記スピーカによって再生されるオーディオ信号のビートを検出し、前記ビートと対応する検出信号を出力する検出部と、
前記発光素子の発光態様を前記検出信号に応じて制御する発光制御信号を出力する発光制御信号出力部とを備え、
前記発光制御信号出力部は、前記検出信号に応じた第1の発光制御信号を出力すると共に、前記ビートが検出されない期間が設定期間を超えると、前記発光素子の前記発光態様を所定のものに制御する第2の発光制御信号を出力する
音響再生装置。
(2)
前記複数のスピーカが水平または垂直の方向に並べて配置されている(1)に記載の音響再生装置。
(3)
前記発光素子は、前記スピーカの振動板を照射する(1)および(2)の何れかに記載の音響再生装置。
(4)
前記検出部および前記発光制御信号出力部がコントロールユニットとして一体に構成され、前記コントロールユニットに対して前記検出信号に応じて発光する発光素子を設ける(1)(2)および(3)の何れかに記載の音響再生装置。
(5)
前記第1の発光制御信号は、前記検出信号と同期して開始する所定期間の発光態様を制御する信号である(1)(2)(3)および(4)の何れかに記載の音響再生装置。
(6)
前記所定期間中に検出されるビートを無視するようになされた(1)(2)(3)(4)および(5)の何れかに記載の音響再生装置。
(7)
前記所定期間の発光態様が複数種類存在し、前記所定期間の発光態様の順序が予め設定されている(1)(2)(3)(4)(5)および(6)の何れかに記載の音響再生装置。
(8)
前記第2の発光制御信号は、一定の周期でもって、前記発光素子の発光態様を変化させる(1)(2)(3)(4)(5)(6)および(7)の何れかに記載の音響再生装置。
(9)
前記周期は、前記所定期間に比して長いものとされる(1)(2)(3)(4)(5)(6)(7)および(8)の何れかに記載の音響再生装置。
(10)
前記発光態様は、前記所定期間の発光態様に比してより単純なものである(1)(2)(3)(4)(5)(6)(7)(8)および(9)の何れかに記載の音響再生装置。
ST0,ST1,ST2,ST3・・・状態
1・・・音源
2・・・コントロールユニット
3・・・スピーカ
4・・・LED
5・・・システムコントローラ
21・・・信号処理部
23・・・LEDコントローラ
29a,29b・・・W字状の発光部
34・・・振動板
40・・・LED
Claims (10)
- 複数のスピーカと、
前記スピーカのそれぞれの一部または前記スピーカのそれぞれの近傍に設けられる複数の発光素子と、
前記スピーカによって再生されるオーディオ信号のビートを検出し、前記ビートと対応する検出信号を出力する検出部と、
前記発光素子の発光態様を前記検出信号に応じて制御する発光制御信号を出力する発光制御信号出力部とを備え、
前記発光制御信号出力部は、前記検出信号に応じた第1の発光制御信号を出力すると共に、前記ビートが検出されない期間が設定期間を超えると、前記発光素子の前記発光態様を所定のものに制御する第2の発光制御信号を出力する
音響再生装置。 - 前記複数のスピーカが水平または垂直の方向に並べて配置されている請求項1に記載の音響再生装置。
- 前記発光素子は、前記スピーカの振動板を照射する請求項1に記載の音響再生装置。
- 前記検出部および前記発光制御信号出力部がコントロールユニットとして一体に構成され、前記コントロールユニットに対して前記検出信号に応じて発光する発光素子を設ける請求項1に記載の音響再生装置。
- 前記第1の発光制御信号は、前記検出信号と同期して開始する所定期間の発光態様を制御する信号である請求項1に記載の音響再生装置。
- 前記所定期間中に検出されるビートを無視するようになされた請求項5に記載の音響再生装置。
- 前記所定期間の発光態様が複数種類存在し、前記所定期間の発光態様の順序が予め設定されている請求項5に記載の音響再生装置。
- 前記第2の発光制御信号は、一定の周期でもって、前記発光素子の発光態様を変化させる請求項1に記載の音響再生装置。
- 前記周期は、前記所定期間に比して長いものとされる請求項8に記載の音響再生装置。
- 前記発光態様は、前記所定期間の発光態様に比してより単純なものである請求項8に記載の音響再生装置。
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