JPH0529094U - Tempo display - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to visually check the transition of the tempo and beats, to easily grasp the tempo and beats, and to easily perform performances that match the tempo and beats. With the goal. [Structure] LED corresponding to the time signature of a song for which automatic accompaniment is performed
42 to 49 are turned on, and the turntable 41 is rotated in accordance with the tempo of this song. At this time, LE
The turntable 41 is rotated once for each bar with D42 at the base mark 70 as the head of the bar. This LED
The tempo transition is displayed by rotating the turntable 41, which is turned on at 42 to 49.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tempo display device, and more particularly to a tempo display device that displays the type of time signature and the transition of tempo in a state where it is easy to see.

[0002]

[Prior Art]

 In music, the tempo is one of the important performance information, and how to make the tempo easier for humans to recognize is a more important factor for developing musical sense and playing music. Therefore, conventionally, there is a metronome so that people can recognize the tempo in an easy-to-understand manner. For electronic musical instruments and the like, performance information is stored and the LED and the like blinks in accordance with the tempo of the performance song. There is something.

[0003]

[Problems to be solved by the device]

 However, in such a conventional tempo display device, it is still difficult to grasp the tempo, especially the transition of the tempo, and there is room for improvement. In other words, in the metronome, the function of recognizing the tempo is a tempo sound that matches the number of beats, and it is difficult to easily recognize the transition of the tempo, so that you can play instruments or sing along with it. It was not easy to sing, and it was especially difficult for an amateur to play a musical instrument or sing a song in tune with a metronome. Also, in the case of an LED that blinks in time with the tempo, the tempo can be visually recognized, but the transition of the tempo cannot be recognized, and an amateur can match the blinking of the LED. It was difficult to play musical instruments and sing songs. Therefore, the present invention makes it possible to visually recognize the transition of the tempo and the beat, and to easily grasp the transition and the beat of the tempo, so that even an amateur can easily change the tempo and the beat. The purpose is to be able to play musical instruments and sing songs while grasping.

[0004]

[Means for Solving the Problems]

 The invention according to claim 1 is: output means for outputting tempo information indicating tempo; moving body movable with respect to the main body; and the moving body and the main body based on the tempo information output from the output means. And a moving means for relatively moving and driving the moving body and the main body so that the relative positional relationship between the moving body and the main body represents the transition of the tempo, and in this case, for example, As described in claim 2, the tempo indicator provided on the moving body and the main body so that the relative positional relationship between the moving body and the main body visually represents the transition of the tempo. May be further included. According to a third aspect of the present invention, output means for outputting tempo information indicating tempo and display information indicating time signature, a moving body movable with respect to the main body, the tempo information output from the output means, and the tempo information Moving means for moving the moving body and the main body relative to each other so that the relative positional relationship between the moving body and the main body represents the transition of the tempo and the beat based on time signature information; A tempo display device comprising: In this case, for example, as described in claim 4, one beat information is selected from a plurality of beat information output from the output unit, and the selected beat information is output from the output unit. It may further have a selection means, and as described in claim 6, the relative positional relationship between the moving body and the main body visually indicates the transition of the tempo and the beat. As shown, the mobile body and the display body provided on the main body may be further included. Further, for example, as described in claim 6, a display control means for driving and controlling the display body in a display form corresponding to the time signature information output from the output means may be further included. As described in Item 7, the drive means drives and drives the moving body and the main body with a period of one bar determined by the tempo information and the time signature information as one cycle. May be. Further, for example, as described in claim 8, the moving body is formed in a disk shape, and the drive means is driven to rotate about a circle center of the disk-shaped moving body as a rotation center. Good.

[0005]

[Action]

 According to the first aspect of the present invention, the output means outputs the tempo information indicating the tempo, and, for example, the disk-shaped moving body moves with respect to the main body. At this time, the moving means relatively moves the moving body and the main body based on the tempo information output from the output means so that the relative positional relationship between the moving body and the main body indicates the tempo estimation. Drive it. Therefore, the transition of the tempo can be confirmed as the moving body moves, and the transition of the tempo can be easily grasped. As a result, even an amateur can easily play a musical instrument or sing a song in accordance with the change in tempo. In this case, if the tempo indicator provided on the moving body and the main body is provided so that the relative positional relationship between the moving body and the main body visually represents the transition of the tempo, the tempo estimation can be visually recognized. You can easily check the tempo transition. According to the third aspect of the present invention, the output means outputs tempo information indicating the tempo and display information indicating the time signature. For example, a disk-shaped moving body moves with respect to the main body. To do. At this time, based on the tempo information and the time signature information output from the output means, the moving means and the main body are arranged so that the relative positional relationship between the moving body and the main body indicates the transition of the tempo and the beat. And are moved relative to each other. Therefore, by moving the moving body, it is possible to confirm the type of time signature and the transition of the tempo, and it is possible to easily grasp the type of time signature and the transition of the tempo. As a result, even an amateur can easily play a musical instrument or sing a song in accordance with the type of beat and the transition of tempo. In this case, by selecting one of the time signature information from the plurality of time signature information output from the output means, and outputting the selected time signature information from the output means, the musical instrument is matched to the desired time signature information. Even an amateur can easily play and sing songs. In addition, the relative positional relationship between the moving body and the main body visually indicates the transition of the tempo and the beat, and by providing the moving body and the main body with the display body, the transition of the tempo and the type of the beat can be visually recognized. It can be grasped easily. In addition, by controlling the drive of the display body in a display mode corresponding to the time signature information output from the output means, the time signature information can be more clearly and easily grasped, and the tempo information and the time signature information can be grasped. The movement of one bar can be more clearly grasped by moving and moving the moving body and the main body with one cycle time determined by the information as one cycle.

[0006]

【Example】

 Hereinafter, a specific description will be given based on examples. 1 to 8 are views showing an embodiment of the tempo display device of the present invention. FIG. 1 is a block diagram of an electronic musical instrument 1 to which the tempo display device of the present invention is applied. The electronic musical instrument 1 includes a keyboard 2, an operating section 3, an automatic accompaniment device 4, a ROM (Read Only Memory) 5, and a CPU (Central). Processing Unit) 6, tempo display control circuit 7, tempo display unit 8, motor servo circuit 9, motor 10, tone generation unit 11, amplifier 12, speaker 13 and the like.

As shown in FIG. 2, the keyboard 2 is a normal keyboard for playing, and is used for playing a song in accordance with automatic accompaniment or manually playing a song without automatic accompaniment.

As shown in FIG. 2, the operation section 3 includes various operation switches such as an automatic accompaniment selection button 21, an automatic accompaniment switch 22 and an automatic accompaniment tempo setting knob 23, a display section (not shown), etc., and an electronic musical instrument. 1 various operations are performed, and various information from the electronic musical instrument 1 is displayed on the display unit (not shown). With this automatic accompaniment selection button 21, it is possible to select a piece of music to be automatically accompanied from a plurality of pieces of music information stored in the ROM 5 described later. The automatic accompaniment selection button 21 has a plurality of pieces of music information stored in the ROM 5. It functions as a time signature information selection means for selecting automatic performance or one piece of music information (time signature information) from (time signature information). Further, although not shown in FIG. 2, the operation section 3 is provided with a mode switching button for selecting whether to perform automatic accompaniment or automatic performance, or to output only tempo. It is possible to output only the tempo.

The ROM 5 can store a plurality of types of music information necessary for automatic accompaniment or automatic performance, and the ROM 5 stores time signature information as one of the music information.

The automatic accompaniment unit 4 reads out the music information of the music selected by the operation of the operation unit 3 from the ROM 5, and outputs the read music information to the CPU 6 as a performance signal, an accompaniment signal or a tempo signal.

The CPU 6 has a built-in ROM, RAM and the like, and the built-in ROM stores a program as an electronic musical instrument, a tempo display processing program, and the like. Using the RAM as a work memory, the CPU 6 controls each part of the electronic musical instrument 1 according to the program in the built-in ROM to perform the operation as the electronic musical instrument 1 and the tempo display output operation. For example, when a performance signal or an accompaniment signal is input from the automatic accompaniment unit 4, the CPU 6 controls the input performance signal or accompaniment signal to the musical sound generation unit 11 to generate a musical sound signal. The generated tone signal is emitted as a tone through the amplifier 12 and the speaker 13. When the tempo signal is input from the automatic accompaniment 4, the CPU 6 controls the tempo display control circuit 7 and the motor servo circuit 9 to display the tempo as described later.

As shown in FIG. 2, the tempo display control circuit 7 is provided with a turntable (moving body) 41, and eight LEDs 42 to 49 are provided near the outer periphery of the upper surface of the turntable 41. The LEDs 42 to 49 are arranged concentrically, and lines are radially provided from the center to the LEDs 42 to 49. Further, as shown in FIG. 3, the turntable 41 is provided with four annular electrodes 50 to 53 concentrically on the back surface thereof, and the annular electrodes 50 to 53 and the LEDs 42 to 49 are shown in FIG. So that it is wired. That is, the LED 42 is connected to all the annular electrodes 50 to 53, and the LED 43 is connected to the annular electrodes 50 and 53. The LED 44 is connected to the annular electrodes 50 and 51, and the LED 45 is connected to the annular electrodes 50 and 52 and 53. Further, the LED 46 is connected to the annular electrode 50 and the annular electrodes 51 and 53, and the LED 47 is connected to the annular electrode 50 and the annular electrodes 52 and 53. The LED 48 is connected to the annular electrodes 50 and 51, and the LED 49 is connected to the annular electrodes 50 and 53. The annular electrode 50 is grounded via a brush 54, and the annular electrodes 51 to 53 are connected to the switch 60 via brushes 55 to 57, respectively. The switch 60 is connected to a predetermined voltage power source (+ V) and operates under the control of the CPU 6 in FIG. 1 to selectively connect the power source to the brushes 55 to 57. The grounding wire and switch 60 are provided on the main body 1a side (see FIG. 2) of the electronic musical instrument 1, and the brushes 54 to 57 are sectional views taken along the line AA of FIG. As shown in FIG. 5, sliding contact is made with the annular electrodes 50 to 53 arranged on the back surface of the turntable 41, and they are connected to the grounding wiring and the switching device 60 provided on the main body 1a. The CPU 6 controls the switching of the switching device 60 so that the LEDs 42 to 49 for supplying power can be selected. That is, the CPU 6 outputs the time signature information to the tempo display control circuit 7, and the tempo display control circuit 7 controls the switching of the switch 60 based on the input time signature information, and the LEDs 42 to 49 corresponding to the tempo. Light up. Therefore, the turntable 41 of the present embodiment can control the lighting of the LEDs 42 to 49 by displaying the 4/4 time signature, the 3/4 time signature, and the 6/8 time signature by appropriately switching the switch 60. It

As shown in FIG. 5, the turntable 41 has its center fixed to the shaft 10 a of the motor 10 and is rotationally driven by the motor 10. The rotation of the motor 10 is controlled by the motor servo circuit 9 of FIG. 1, and the CPU 6 controls the driving of the motor 10 via the motor servo circuit 9. That is, when the music information is input from the automatic accompaniment unit 4, the CPU 6 extracts tempo information (information indicating the speed of the music) and a bar signal (a signal indicating the head of a bar) from the music information, and the motor servo circuit Output to 9. Based on the tempo information and the bar signal, the motor servo circuit 9 drives the motor 10 from the head of the bar at a speed matching the tempo, and rotationally drives the turntable 10. As described above, the turntable 41 has lines extending from the center of the turntable 41 toward the LEDs 42 to 49. Of these lines, the line extending toward the LED 42 is another line. It is thicker or has a different color than the other lines, indicating that it is the baseline.

On the other hand, as shown in FIG. 2, the main body 1a is provided with a base point mark 70, and the base point mark 70 is related to the display of the LEDs 42 to 49 provided on the turntable 41. The transition of the tempo is specified according to the rotation (movement) of. Particularly, the base point mark 70 is displayed as the tempo base point when the LED 42 having the thick line or the line of different color is located at the position of the base point mark 70.

Next, the operation will be described. The electronic musical instrument 1 can select a mode by operating the keys of the operation unit 3, and can automatically perform automatic performance, automatic accompaniment, tempo display output, and manual performance.

Now, when the automatic accompaniment mode is selected by the mode selection button and the music to be automatically accompaniment is selected, the automatic accompaniment unit 4 reads the music information of the selected music from the ROM 5 and outputs it to the CPU 6 as an accompaniment signal. Output. The CPU 6 outputs the accompaniment signal input from the ROM 5 to the musical sound generating section 11, and the musical sound generating section 11 generates a musical sound signal based on the input accompaniment signal. The tone signal generated by the tone generator 11 is output to the speaker 13 via the amplifier 12 and emitted from the speaker 13.

Further, the CPU 6 extracts time signature information from the accompaniment signal input from the automatic accompaniment section 4 and outputs it to the tempo display control circuit 7. The tempo display control circuit 7 switches the switch 60 (see FIG. 4) based on the input time information, and lights the LEDs 42 to 49 corresponding to the time information. For example, when the beat information is 4/4 beat, the switch 60 connects the brush 55 to the power source and lights the LEDs 42, 44, 46 and 48 as shown in FIG. When the beat information is 3/4 beat, the switching device 60 connects the brush 56 to the power source and turns on the LEDs 42, 45, 47 as shown in FIG. Further, when the time signature information is 6/8, the switching device 60 connects the power source to the brush 57 and turns on the LEDs 42, 43, 45, 46, 47, 49 as shown in FIG.

The CPU 6 also extracts tempo information and bar signals from the accompaniment signals input from the automatic accompaniment section 4, and outputs them to the motor servo circuit 9. The motor servo circuit 9 controls the rotation speed of the motor 10 according to the inputted tempo information, and controls the rotation starting point of the motor 10 according to the inputted measure signal. The motor 10 rotates the turntable 41 at a speed according to the tempo.

At the start of the performance, the CPU 6 sets the turntable 41 so that the LED 42 of the turntable 41 is located at the position of the base point mark 70, and when the LED 42 is located at the base point mark 70, the automatic accompaniment is performed. The motor 10 is driven at a speed synchronized with the tempo information to rotate the turntable 41.

Now, for example, if the time signature of the automatic accompaniment music is 4/4, the LEDs 42, 44, 46, 48 are turned on and the turntable 41 is rotated once in one bar.

Therefore, when attempting to perform a performance using the keyboard 2 with automatic accompaniment, the rotation of the turntable 41 can be placed in a part of the field of view and the keyboard 2 can be operated. It can be easily grasped by the movement of the turntable 41 and the LEDs 42 to 49 provided on the turntable 41 and turned on. As a result, the operation of the keyboard 2 can be performed according to the tempo, and even an amateur can easily grasp the tempo and perform the performance operation.

In the above embodiment, the turntable 41 is provided with one LED 42 to 49 for each beat, but the number of LEDs is not limited to this. For example, as shown in FIG. It is also possible to print only the line 81 on the surface of 80 and to make the line 81 different in thickness or color depending on the beat. Further, in this case, the line 82, which is the base line of each beat, may be made particularly thick or have a conspicuous color. Further, as shown in FIG. 10, a plurality of LEDs 91 may be radially arranged on the turntable 90 instead of the lines. In this case, the emission colors of the base LED 92 and the other LEDs 91. Be different. Further, as shown in FIG. 11, instead of the lines, a liquid crystal panel may be used for the turntable 100, and the segment electrodes 101 may be arranged radially. Also in this case, the segment electrode serving as the base line is thickened.

Further, in the above embodiment, the turntables 41, 90, 100 correspond to 4/4 time signature, 4/3 time signature, 6/8 time signature, etc., but not limited to this, for example, as shown in FIG. As shown in FIG. 12, the turntable 110 is provided with twelve radiations and the LEDs 111 for each of the radiations, and one of the radiations is thickened to be the baseline. By doing so, for the triplet as shown in FIG. 13, by lighting each LED 111 for each note, the tempo can be displayed for the triplet as well.

Further, in the above embodiment, the turntable 41 is provided with LEDs 42 to 49 indicating the type of tempo, and the base point mark 70 is provided on the main body 1a. On the contrary, the type of tempo is provided on the main body 1a. It is also possible to provide an LED or the like to indicate the base point mark on the turntable.

Further, although the moving body is rotated as a turntable, the present invention is not limited to this. For example, the moving body is moved in a linear direction or the like while clarifying the type of tempo to show the transition of the tempo. You may do it.

Further, the display means is not limited to an LED, and may be, for example, an electronic display element such as plasma electroluminescence, an electric display element such as a lamp, or other means. It is not limited in any way.

Although only the automatic accompaniment has been described in the above embodiment, the tempo display similar to that at the time of the automatic accompaniment is possible at the time of the automatic performance by the music information stored in the ROM 5 and necessary for the automatic performance.

Also, a removable storage medium (for example, a packaged ROM or RAM, a floppy disk, or the like) may be used instead of the ROM 5.

[0029]

[Effect of the device]

 According to the invention of claim 1, the transition of the tempo can be confirmed as the moving body moves, and the transition of the tempo can be easily grasped. As a result, even an amateur can easily play a musical instrument or sing a song in accordance with the change in tempo.

According to the second aspect of the invention, the transition of the tempo can be visually confirmed by the tempo indicator, and the transition of the tempo can be more easily grasped.

According to the third aspect of the invention, it is possible to confirm the type of beat and the transition of the tempo with the movement of the moving body, and it is possible to easily grasp the type of the beat and the transition of the tempo. it can. As a result, even an amateur can easily play a musical instrument or sing a song according to the type of beat and the transition of tempo.

According to the invention as set forth in claim 4, the selecting means can move the moving body based on the time signature information selected from the plurality of time signature information, and confirm the type of the selected time signature and the transition of the tempo. it can. Therefore, it is possible to easily play a musical instrument or sing a song in accordance with the desired time signature information.

Further, according to the invention of claim 5, it is possible to visually confirm the type of beat and the transition of tempo by the display body, and it is possible to more easily grasp the type of beat and the transition of tempo. You can

According to the invention as set forth in claim 6, the display body can be drive-controlled in a display form corresponding to the time signature information output from the output means, and the type of the time signature and the transition of the tempo can be further suppressed. It is easier and clearer to grasp visually.

Further, according to the invention of claim 7, the moving body and the main body can be moved and driven with the time for one bar as one cycle, and the transition of one bar can be more clearly understood. You can

[Brief description of drawings]

FIG. 1 is a block diagram of an electronic musical instrument to which a tempo display device according to the present invention is applied.

FIG. 2 is an enlarged view of a main part of an electronic musical instrument.

FIG. 3 is a rear view of the turntable.

FIG. 4 is an LED of a turntable and a wiring diagram thereof.

5 is a sectional view taken along the line AA of FIG.

FIG. 6 is a diagram showing a lighting state of an LED when the beat is 4/4.

FIG. 7 is a diagram showing a lighting state of an LED when the beat is 3/4.

FIG. 8 is a diagram showing a lighting state of an LED when the beat is 6/8.

FIG. 9 is a diagram showing an example of a turntable with only lines.

FIG. 10 is a diagram showing an example of a turntable in which LEDs are radially provided.

FIG. 11 is a diagram showing an example of a turntable using a liquid crystal panel.

FIG. 12 is a diagram showing an example of a turntable capable of displaying triplets.

FIG. 13 is a musical score of triplets displayed on the turntable of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic musical instrument 2 Keyboard 3 Operation part 4 Automatic accompaniment part 5 ROM 6 CPU 7 Tempo display control circuit 8 Tempo display part 9 Motor servo circuit 10 Motor 11 Musical sound production part 12 Amplifier 13 Speaker 41, 80, 90, 100, 110 Turntable 42 to 49, 91, 92, 111 LED 51, 52, 53 annular electrode 54, 55, 56, 57 brush 60 switcher 101, 102 segment electrode

Claims (8)

[Scope of utility model registration request] 1. Output means for outputting tempo information representing a tempo, a movable body movable with respect to a main body, and based on the tempo information output from the output means,
A tempo, which comprises: a moving unit that relatively drives the moving body and the main body so that the relative positional relationship between the moving body and the main body represents the transition of the tempo. Display device. 2. The tempo indicator provided on the moving body and the main body is further provided so that the relative positional relationship between the moving body and the main body visually represents the transition of the tempo. The tempo display device according to claim 1, which is characterized in that: 3. Output means for outputting tempo information indicating the tempo and display information indicating the time signature, a movable body movable with respect to the main body, the tempo information and the time signature information output from the output means. Based on the above, so that the relative positional relationship between the moving body and the main body represents the transition of the tempo and the beat, a moving means for relatively moving and driving the moving body and the main body are provided. A tempo display device characterized by the above. 4. A selecting means for selecting one beat information from a plurality of beat information output from the output means, and causing the output means to output the selected beat information.
The tempo display device according to claim 3, further comprising: 5. A display provided on the moving body and the main body, wherein a relative positional relationship between the moving body and the main body visually represents the transition of the tempo and the beat. The tempo display device according to claim 3 or 4, further comprising: 6. The display control means for driving and controlling the display body in a display form corresponding to the time signature information output from the output means, further comprising a display control means. The tempo display device according to item 5. 7. The driving means drives the moving body and the main body for movement, with a period of one bar determined by the tempo information and the time signature information as one cycle. The tempo display device according to claim 3, claim 4, claim 5, or claim 6. 8. The moving body is formed in a disk shape, and the drive means is driven to rotate about a circle center of the disk-shaped moving body as a rotation center. The tempo display device according to claim 3, claim 4, claim 5, claim 6, or claim 7.