JP5568955B2 - Electronic keyboard instrument - Google Patents

Electronic keyboard instrument Download PDF

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JP5568955B2
JP5568955B2 JP2009249024A JP2009249024A JP5568955B2 JP 5568955 B2 JP5568955 B2 JP 5568955B2 JP 2009249024 A JP2009249024 A JP 2009249024A JP 2009249024 A JP2009249024 A JP 2009249024A JP 5568955 B2 JP5568955 B2 JP 5568955B2
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pedal
drive control
control information
key
escapement
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JP2011095486A (en
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昭彦 小松
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ヤマハ株式会社
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Description

  The present invention relates to an electronic keyboard instrument that includes a driving unit such as a solenoid that drives a performance operator such as a key or a pedal, and controls the driving unit to perform a force sense control on an operation of the key or the pedal.
  The keyboard unit of a natural keyboard instrument that produces live sounds, such as an acoustic piano, is configured so that a hammer that rotates when a key is pressed produces a string, and a jack or wippen is provided between the key and the hammer. An action mechanism is provided. By this action mechanism, a unique reaction force is applied from the key to the performer's finger, and the keyboard unit of the natural keyboard instrument provides a key touch feeling peculiar to each instrument. As a key touch feeling peculiar to such an acoustic piano, there is a sense of performance of escapement (so-called jack omission) in which a jack, which is a component that conveys the movement of the keyboard to the hammer, escapes. The performance of this escapement is accompanied by a relatively sudden change in the load transmitted from the key to the finger as the jack is removed.
  The acoustic piano has a mechanism for generating a sound by striking a hammer against a string in accordance with the key depression, and the generated sound differs in sounding manner and magnitude depending on the strength and speed of the key depression. The acoustic piano is equipped with a pedal for controlling the reverberation of the sound. For example, a grand piano is a damper pedal, a sostenuto pedal, or a soft pedal.
  Among these, the damper pedal is a pedal for controlling the damper for stopping the vibration of the string. The damper is provided in a one-to-one correspondence with the string, and normally, the damper is released from the string by pressing the key, and the sound is stopped by pressing the string by releasing the key. Each damper is connected to a damper pedal (hereinafter, simply referred to as “pedal”) through some connecting portions. When the pedal is depressed, the dampers corresponding to all strings are released, and even if the finger is released from the key, the damper does not stop and the key pressed sound remains. In this case, all the strings including the strings corresponding to the keys that are not pressed resonate, and the overtones sound clearly. By operating the damper with the pedal in this way, various expressions can be given to the pronunciation of the piano.
  By the way, a so-called play is provided at the connecting portion between each damper and the pedal. Due to this play, the damper does not operate when the pedal is depressed shallowly, and the damper is pushed up only when the pedal is depressed to a predetermined position. By using this, the performer can always put his foot on the pedal and can perform a so-called half pedal operation in which the damper is depressed to a position where the damper slightly restrains the string. In this half pedal operation, by adjusting the amount of depression of the damper pedal to a predetermined position that is about half of the maximum, the sound reverberation at the position where the damper starts to move away from the string can be adjusted.
  By the way, in recent years, electronic keyboard instruments simulating performance sounds and performance sensations of natural keyboard instruments as described above have been widely used. Such a keyboard unit of an electronic keyboard instrument is provided with a spring and a mass body (pseudo hammer) that return the key to the initial position when the key is pressed, and the reaction force thereof simulates the key touch feeling of a natural keyboard instrument. ing. However, an electronic keyboard instrument is a device that generates an electronic sound by pressing a key, and does not have a mechanism for actually striking a string to produce sound, and therefore does not have a complicated action mechanism like a natural keyboard instrument. Therefore, the key touch feeling generated by the action mechanism of the natural keyboard instrument cannot be faithfully reproduced, and the key touch feeling of the electronic keyboard instrument is strictly different from the key touch feeling of the natural keyboard instrument. Also, the pedal depression feeling is different from the pedal depression feeling of a natural keyboard instrument.
  In an electronic keyboard instrument that generates an electronic sound, the key or pedal is driven to change the reaction force against the key depression for the purpose of creating a key touch feeling or pedal operation feeling similar to the natural keyboard instrument as described above. A drive device including an actuator mechanism and a control device (force control means) for controlling the drive device have been proposed. In this case, as a drive source for driving a key or a pedal, for example, as shown in Patent Document 1, a solenoid is used.
  On the other hand, conventionally, in order to acquire the performance technique of a keyboard instrument such as a piano, a method of receiving instruction from an instructor in a classroom or at home is generally used. There is also a self-study method using educational materials such as textbooks and DVDs. Furthermore, as described in Patent Document 2, there is a method of using a bidirectional education system using communication means such as the Internet. Further, as a conventional technique, there is a keyboard apparatus that teaches a performer by driving a key based on performance information, such as a keyboard apparatus described in Patent Document 3. The keyboard device described in Patent Document 3 performs performance support by slightly driving a key to be operated next by a performer according to performance data.
JP 2009-98583 A JP 2001-282095 A JP 2000-194356 A
  However, in the teaching of playing techniques of keyboard instruments such as pianos, especially for beginners of performance, learning of the performance sensation at the time of escapement (so-called jack disconnection) in which the jack escapes, or stepping on the damper pedal is necessary. There is a problem that it is difficult to learn the operation at the half pedal position where the lift starts.
  That is, in the operation of the keyboard, since the power of the key operation is not transmitted to the hammer after the escapement, it is important to improve the performance to grasp the position of the escapement. However, the sensation of escapement is felt when the keyboard is softly struck, and this sensation is a subtle thing felt at the fingertips. For this reason, even a beginner can understand if you press the keys slowly, but it is difficult to learn advanced performance techniques that effectively reflect that feeling in the weak beating sound.
  Also, since the operation feeling of the half pedal area in the damper pedal is delicate, it is difficult for a beginner to perform. For this reason, even if the half-pedal operation is explained in text in teaching materials such as textbooks, it cannot be easily understood. Even if the instructor is instructed in the field, the sense of half-pedal operation itself is subtle with conventional keyboard instruments, so it is difficult for learners to understand the position and adjustment of the half-pedal area. There is a problem.
  In addition, according to an electronic keyboard instrument that imparts a force sense generated electromagnetically by an actuator, such as the electronic keyboard instrument described in Patent Document 1, the operation feeling of the escapement area and the half pedal area is created. Is possible. Therefore, by reproducing the operation feeling of the escapement area and the half pedal area in the electronic keyboard instrument, it is possible to obtain a performance feeling that approximates that of a natural keyboard instrument. However, even if such an electronic keyboard instrument is used, it is not easy for beginners to learn the delicate positions and feelings of the escapement area and the half pedal area as described above.
  The present invention has been made in view of the above points, and an object of the present invention is to provide an electronic keyboard instrument that allows a performer to learn lessons about keyboard and pedal operations more easily and intuitively. It is in.
  In order to solve the above problems, the present invention includes a keyboard (120), an actuator (140) for applying a reaction force or assist to a performance operation of the keyboard (120), and drive control information (80) for the keyboard (120). Storage means (52) for storing, force sense control means (50) for controlling the force sense for the operation of the keyboard (20) by controlling the drive of the actuator (140) based on the drive control information (80). , The drive control information (80) stored in the storage means (52) is the first for reproducing the operation feeling of the escapement area on the keyboard of the natural keyboard instrument. In order to change the operation feeling of the escapement area that includes the escapement drive control information (80) and is reproduced by the first escapement drive control information (80) Information fetching means (50) for taking in the second escapement drive control information (80 ') from the outside is provided, and the second escapement drive control information (80') is taken in by the information fetching means (50). At this time, the second escapement drive control information (80 ′) stored in the storage means (52) is changed to the second escapement drive control information (80 ′), so that the second escapement drive control information is changed. The operation feeling of the escapement area of the keyboard (120) changed based on the information (80 ') is output. In this case, the operation sensation based on the second escapement drive control information (80 ′) after the change is more effective than the operation sensation based on the first escapement drive control information (80) before the change. It is preferable that the reaction force against the performance operation of the keyboard (120) is increased.
  The present invention also provides a pedal (220), an actuator (240) for applying a reaction force to the performance operation of the pedal (220), and a storage means (52) for storing drive control information (85) for the pedal (220). And a haptic control means (50) for controlling the haptic with respect to the operation of the pedal (220) by controlling the drive of the actuator (240) based on the drive control information (85). In (1), the drive control information (85) stored in the storage means (52) is the first half pedal drive control information (85 for reproducing the operation feeling of the half pedal area in the pedal of the natural keyboard instrument. ) And second half-pedal drive control information for changing the operational feeling of the half-pedal region reproduced by the first half-pedal drive control information (85) The information fetching means (50) for fetching (85 ') from the outside is provided. When the second half pedal drive control information (85') is fetched by the information fetching means (50), the information is stored in the storage means (52). Based on the second half pedal drive control information (85 ′) by changing the stored first half pedal drive control information (85) to the second half pedal drive control information (85 ′). The operation feeling of the half pedal area of the changed pedal (220) is output. In this case, the operation feeling based on the second half pedal drive control information (85 ′) after the change is more in the half pedal area than the operation feeling based on the first half pedal drive control information (85) before the change. It is preferable that the reaction force against the performance operation of the pedal (220) is increased.
  According to the electronic keyboard instrument of the present invention, the operation feeling of the escapement area of the keyboard (the so-called key depression area where the jack is disconnected) or the half pedal area when the pedal is depressed (damper lift starts) according to the information taken from the outside. By changing the sense of operation of the playing position and the stepping area before and after that), the learning content regarding the escapement area of the keyboard or the learning content regarding the half-pedal area in pedal operation can be made sensuously You can make it easy to understand. That is, for example, in the escapement area or the half pedal area, the load applied to the finger from the keyboard is increased to about twice that of the normal time so as to emphasize the load in the escapement area or the half pedal area. By doing so, it is possible to make the performance beginner better grasp the sense of escapement or half pedal. Also, because the keyboard or pedal operation sensation is changed according to the information taken from outside, the load applied to the finger from the keyboard can be changed only when teaching escapement or half pedal. Can be a normal load. Therefore, it is possible to appropriately change the operation feeling of the keyboard or pedal when necessary according to the contents of the lesson.
  In the present invention, the external device (70) capable of exchanging data with the electronic keyboard instrument (1), the recording medium (73) readable by the electronic keyboard instrument (1) or the external device (70), the electronic device At least one of the keyboard instrument (1) and the server (72) on the communication network (75) to which the external device (70) is connected has teaching material data (S) for performance related to the performance technique of the electronic keyboard instrument (1). The second escapement drive control information (80 ′) or the second half pedal drive control information (85 ′) is stored in the plurality of teaching contents (91) included in the learning material data (S). Alternatively, any of the learning contents (91) stored corresponding to at least one of the learning levels (92) and included in the learning material data (S) for the external device (70) or the electronic keyboard instrument (1) Or lesson When reading the bell (92), the information capturing means (50) reads the second escapement drive control information (80 ') corresponding to the read learning content (91) or the learning level (92) or the second 2 half-pedal drive control information (85 ') and the escape of the keyboard (120) based on the second escapement drive control information (80') or the second half-pedal drive control information (85 ') It is preferable to change the operational feeling of the movement area or the half pedal area of the pedal (220). According to this, since the touch feeling of the keyboard of the electronic keyboard instrument or the feeling of stepping on the pedal can be changed according to the contents of the teaching material, the contents of the teaching material and the operation feeling of the keyboard or pedal can be linked. it can. Therefore, it becomes easy for a learner of performance techniques to intuitively understand the contents of the teaching materials related to escapement and half pedal, and these can be quickly and reliably learned.
The teaching material data (S) for training is stored in the server (72) on the Internet (75), and the information fetching means (50) is connected to the external device (70) or the electronic keyboard via the Internet (75). The second escapement drive control information (80 ′) or the second half pedal drive control information (85 ′) included in the teaching material data (S) downloaded to the musical instrument (1) may be captured. According to this, it is possible to easily obtain the latest teaching material software for learners of performance techniques at home or the like, and to perform escapement and half-pedal performance based on the information taken from the educational material software for the learning. You will be able to learn the technology effectively. Therefore, it is possible to improve the convenience of performance learning using the learning material.
In addition, the code | symbol in parenthesis here has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.
  According to the electronic keyboard instrument of the present invention, by changing the operation feeling of the keyboard and pedal according to the information taken from the outside, the contents of the training relating to the operation of the keyboard and pedal are made easier to understand for the player. be able to.
It is a block diagram which shows the function structure of the electronic keyboard musical instrument concerning one Embodiment of this invention. It is a figure which shows the structural example of a keyboard apparatus, and is a schematic side view which shows a key and its surrounding component. 4A and 4B are diagrams for explaining the operation of the keyboard device, in which FIG. 4A is a diagram illustrating a state in which a key is in a non-pressed position, and FIG. (A) is a figure which shows the force sense provision table for keyboards, (b) is a figure which shows the force sense provision table for pedals. It is a flowchart for demonstrating the procedure of the force sense control of a keyboard. It is a graph which shows distribution of the reaction force (load) with respect to the displacement (key press amount) of a key at the time of performing force sense control with respect to a keyboard, (a) is distribution of reaction force by a force sense giving table before change, (B) is a figure which shows distribution of the reaction force by the force sense provision table after a change. It is a figure which shows the structural example of a pedal apparatus, (a) is a schematic sectional side view, (b) is a front view. It is a flowchart for demonstrating the procedure of the force sense control of a pedal. It is a graph which shows distribution of reaction force (load) with respect to displacement (depression amount) of a pedal at the time of performing force sense control to a pedal, (a) is distribution of reaction force by a force sense grant table before change, ( b) is a graph showing the distribution of reaction force according to the force application table after change. It is a figure which shows the data content contained in teaching material software for learning. It is a flowchart of the process based on the lesson content about the escapement of a keyboard. It is a flowchart of the process based on the lesson content about the half pedal of a pedal.
  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[Overall configuration]
FIG. 1 is a block diagram showing the overall functional configuration of an electronic keyboard instrument according to an embodiment of the present invention. The electronic keyboard instrument 1 shown in the figure controls a keyboard apparatus 10 having a key (keyboard) 120, a pedal apparatus 20 having a pedal 220, and the electronic keyboard instrument 1 including the keyboard apparatus 10 and the pedal apparatus 20 as a whole. And a control unit 50. Each part of the electronic keyboard instrument 1 such as the keyboard device 10, the pedal device 20, and the main control unit 50 is connected to each other via a bus 51.
  First, the main controller 50 shown in FIG. 1 will be described. The main control unit 50 includes a CPU 51, a flash memory (FLASH ROM) 52, a RAM 53, and the like. The CPU 51 governs overall control of the electronic keyboard instrument 1 including the keyboard device 10 and the pedal device 20. In particular, the CPU 51 functions as force sense control means for performing force sense control of the key 120 or the pedal 220 by controlling driving of the solenoid 140 of the keyboard device 10 and the solenoid 240 of the pedal device 20. In addition to the control program executed by the CPU 51 and various table data, the flash memory 52 performs force sense control of the keyboard force sense application table 80 and data for performing force sense control of the key 120 and the pedal 220. For this purpose, a pedal force sense application table 85 is stored. The RAM 53 is an area for temporarily storing various input information such as performance data and text data, various flags, buffer data, and arithmetic processing results.
  In addition to the main control unit 50, the electronic keyboard instrument 1 includes a setting operation unit 61, a display device 63, an audio output unit 65, a storage device (HDD) 66, a communication interface 68, a connection terminal unit 69, and the like. Yes. The communication interface 68 is connected to the Internet (communication network) 75 so that data can be transmitted to and received from the server 72 via the Internet 75. The connection terminal unit 69 is a USB terminal, a LAN terminal, or the like, and is connected to a personal computer (hereinafter referred to as “PC”) 70 that is an external electronic device by a connection cable 69 a such as a USB cable or a LAN cable. It has become.
  Although not shown in detail, the PC 70 includes a CPU, an HDD, and the like, and a DVD- that stores instructional teaching software (teaching instructional data) S including instructional contents related to performance operation of the electronic keyboard instrument 1. A reading device for reading data of a recording medium 73 such as a ROM or a CD-ROM, and a display 71 for displaying data content read from the recording medium 73 are provided. Note that the data of the educational material software S for training may be data stored in the server 72 on the Internet 75 or downloaded to the HDD of the PC 70 in addition to being stored in the recording medium 73. The contents of the teaching material software S read from the recording medium 73 or the HDD of the PC 70 can be displayed on the screen of the display 71. Further, the teaching material software S data is sent from the PC 70 to the electronic keyboard instrument 1 so that the contents of the educational material software S can be displayed on the display device 63 provided in the electronic keyboard instrument 1 or the voice output unit 65 It is also possible to output as
  When the electronic keyboard instrument 1 is directly connected to the Internet 75 via the communication interface 68, the data of the teaching material software S is downloaded from the server 72 on the Internet 75 to the storage device 66 of the electronic keyboard instrument 1. Is possible. In this case as well, the contents of the teaching material software S can be displayed on the display device 63 of the electronic keyboard instrument 1 or can be output as sound from the sound output unit 65. The contents of the teaching material software S for training will be described later.
  The setting operation unit 61 includes various switches (not shown) that are used by the performer to input setting operation information, and a signal generated by operating the switches is supplied to the CPU 51. The display device 63 is connected to the bus 51 via the display control circuit 62, and the audio output unit 65 is connected to the bus 51 via the sound source circuit 64.
[Keyboard device]
FIG. 2 is a diagram illustrating a configuration example of the keyboard device 10, and is a schematic side view of the key 120 and its surroundings. 3A and 3B are diagrams for explaining the operation of the keyboard device 10. FIG. 3A shows a state in which the key 120 is in the non-key-pressed position, and FIG. Indicates the state. The keyboard device 10 includes a flat frame 111, a key 120 and a mass body 130 that are rotatably supported with respect to the frame 111, and a solenoid (electromagnetic actuator) installed between the key 120 and the mass body 130. 140.
  In the following description, of the two sides of the key 120 in the longitudinal direction, the player side of the electronic keyboard instrument 1 is referred to as the front or the front, and the opposite side is referred to as the back or the rear. In FIG. 2, one key 120 and its peripheral components are shown among the plurality of keys 120 arranged in parallel in the keyboard device 10. Further, in the figure, the case where the key 120 is a white key is shown, but the configuration is the same in the case of a black key. Although not shown, the keyboard device 10 is also provided with a switch contact mechanism for converting the operation of the key 120 into an electrical output so as to generate a musical sound according to the operation of the key 120. .
  The key 120 is supported by a key fulcrum 112 on the frame 111 at an intermediate position in the front-rear direction. The front end 120a and the rear end 120b of the key 120 can be rotated in the vertical direction around the key fulcrum 112, and are rotated in response to a key pressing operation to the key pressing portion 120c by the performer. A key upper limit stopper 121 is installed below the rear end 120b of the key 120, and a key lower limit stopper 122 is installed below the front end 120a. The key upper limit stopper 121 is in contact with the lower surface of the rear end 120b of the key 120 at the non-key pressing position shown in FIG. 3A, and restricts the rotation of the key 120 at the non-key pressing position. On the other hand, the key lower limit stopper 122 abuts against the lower surface of the front end 120a of the key 120 at the key pressing position shown in FIG. 3B, and restricts the rotation of the key 120 at the key pressing position.
  In addition, a columnar support portion 114 for supporting the mass body 130 is provided on the frame 111 behind the key fulcrum 112. The support unit 114 protrudes from between the adjacent keys 120 on the frame 111 directly above each key 120 at a rate of one for each of a plurality of key ranges. The mass body 130 supported by the support portion 114 is installed corresponding to each key 120, and is installed at a position immediately above the key fulcrum 112. The mass body 130 includes a straight bar-shaped shank portion 132 extending rearward from the mass body fulcrum 131 provided at the upper end of the support portion 114, and a mass portion (weight) 133 having a predetermined mass attached to the tip of the shank portion 132. It is configured with. The shank portion 132 is rotatably supported by the mass body fulcrum 131 and is configured to rotate up and down within a vertical plane along the longitudinal direction of the key 120. The mass portion 133 is formed in a rod shape extending along the rotation direction at the tip of the shank portion 132. The mass body 130 is configured such that the mass portion 133 rotates in the vertical direction above the vicinity of the rear end of the key 120 with the shank portion 132 as an arm around the mass body fulcrum 131.
  The support portion 114 is provided with a mass body upper limit stopper 134 and a mass body lower limit stopper 135 for restricting the rotation of the mass body 130 at the lower limit position and the upper limit position, respectively. With these mass body lower limit stopper 135 and mass body upper limit stopper 134, the mass body 130 has a lower limit position where the shank portion 132 extends obliquely downward on the rear side from the mass body fulcrum 131, as shown in FIG. As shown in FIG. 4B, the shank portion 132 is regulated so as to rotate between the mass body fulcrum 131 and the upper limit position extending in the substantially horizontal direction on the rear side. The mass body 130 is interlocked with the operation of the key 120 via a plunger 142 described later, and applies a reaction force to the performance operation to the key 120 in cooperation with the solenoid 140.
  The solenoid 140 for applying a predetermined driving force to the key 120 and the mass body 130 is installed between the upper surface of the key 120 behind the key fulcrum 112 and the shank portion 132 of the mass body 130. The solenoid 140 is a bi-directionally driven actuator, and includes a coil 141 composed of a forward coil 141a and a backward coil 141b arranged coaxially in the vertical direction, and a plunger 142 fitted inside the coil 141. And is configured. The coil 141 is fixed to the support part 114 and the frame 111.
  A cylindrical roller 136 is attached at a position facing the upper end of the plunger 142 in the shank portion 132 of the mass body 130. The roller 136 has an axial direction horizontally oriented along the arrangement direction of the keys 120, and a lower side surface (cylindrical surface) is placed on the upper end surface of the plunger 142. On the other hand, the lower end of the plunger 142 is placed on a screw 125 provided on the upper surface of the key 120.
  The solenoid 140 is configured to drive the plunger 142 in both the up and down directions by supplying a driving current to the forward coil 141a and the backward coil 141b. That is, when a drive current is supplied to the return coil 141b, the plunger 142 moves downward. As a result, a downward load is applied from the plunger 142 to the rear side of the key fulcrum 112 of the key 120, so the load applied in the key release direction of the key 120 increases. On the other hand, when a drive current is supplied to the forward movement coil 141a, the plunger 142 moves upward. As a result, the load applied downward from the plunger 142 to the rear side of the key fulcrum 112 of the key 120 is reduced, so the load applied in the key release direction of the key 120 is reduced.
  The keyboard device 10 is provided with a key position sensor 145 for detecting the position of the key 120. The key position sensor 145 is configured so that the light receiving portion provided on the coil 140 side and the reflecting surface provided on the plunger 142 side are opposed to each other, and the light reflected by the reflecting surface is received by the light receiving portion. This is a reflective sensor. The reflecting surface is configured such that the amount of reflected light at each position in the vertical direction changes continuously. Therefore, the positions of the plunger 142 and the key 120 can be uniquely specified based on the output signal of the light receiving unit.
  As shown in FIG. 1, the drive control circuit of the key 120 includes a main control unit 50 and a solenoid control driver 148 that outputs a PWM (pulse width modulation) signal for driving to the solenoid 140 in accordance with a command from the main control unit 50. It has. The flash memory 52 of the main control unit 50 stores a keyboard force sense application table 80. The position information of the key 120 detected by the key position sensor 145 is output to the main control unit 50. A control signal from the main control unit 50 is input to the solenoid control driver 148. The solenoid control driver 148 supplies a drive signal to the solenoid 140 based on a control signal from the main control unit 50.
  FIG. 4A is a diagram showing a configuration example of the keyboard force sense imparting table 80 stored in the flash memory 52. The keyboard force sense application table 80 stores a driving force pattern to be generated by the solenoid 140 of the keyboard device 10. A key pressing table 81 and a key releasing table 82 are prepared for the keyboard force sense application table 80. The key pressing table 81 and the key releasing table 82 include reaction force pattern tables 81a and 82a and command value tables 81b and 82b, respectively. The reaction force pattern tables 81a and 82a are tables for referring to output values with respect to signals of detection values of the key position sensor 145 (or values of the speed and acceleration of the key 120 calculated from the detection values). The command value tables 81b and 82b are tables for referring to command values for causing the solenoid control driver 148 to generate the output values. Note that, as will be described later, the keyboard force sense imparting table 80 is drive control information (first escapement drive control information) for reproducing an operation feeling of an escapement (so-called jack disconnection) region on a keyboard of a natural keyboard instrument. Is included.
  Next, the operation of the keyboard device 10 will be described. The key 120 is subjected to a key pressing force due to the magnitude relationship between the biasing force in the key pressing direction generated by the mass (self-weight) balance before and after the key fulcrum 112 and the load from the mass body 130 via the plunger 142. When not, the key is in the non-key-pressed position shown in FIG. At this time, the mass body 130 is in the lower limit position where the shank portion 132 is in contact with the mass body lower limit stopper 135. On the other hand, when the key 120 at the non-key-pressing position is pressed, the key 120 rotates in the key pressing direction around the key fulcrum 112 while pushing up the mass body 130 via the plunger 142. Thus, the key pressing position shown in FIG. When the key 120 is in the key pressing position, the mass body 130 pushed up by the key 120 via the plunger 142 is at the upper limit position where the shank portion 132 contacts the mass body upper limit stopper 134. When the key pressing force on the key 120 is released, a load is applied to the key 120 from the mass body 130 that rotates downward by its own weight via the plunger 142. The key 120 returns to the non-key pressed position by both the load and the weight balance.
  When the operation of the key 120 using the inertial mass of the mass body 130 is performed, the main control unit 50 controls the drive of the solenoid 140, thereby performing force sense control of the reaction force with respect to the key pressing operation. Can do. In the keyboard device 10 of the present embodiment, a reaction force characteristic corresponding to the key touch feeling of the acoustic piano in order to reproduce a unique key touch feeling (resistance feeling) felt by the finger based on the action mechanism of the acoustic piano. Is provided to the key 120 by the solenoid 140.
  FIG. 5 is a flowchart for explaining the procedure of force sense control of the key 120. In the force sense control of the key 120, first, the position information of the key 120 is initialized (step ST1-1). Thereafter, the position (key press amount) of the key 120 detected by the key position sensor 145 is read (step ST1-2). If a key speed sensor is provided, the detected key speed is read (step ST1-3). If a key acceleration sensor is provided, the detected key 120 acceleration is read (step ST1-4). . When the key speed sensor is not provided, the key speed may be calculated from the difference between the key position data detected by the key position sensor 145 (step 1-3). If no key acceleration sensor is provided, the key acceleration may be calculated from the difference in key speed data (step ST1-4). If an angle sensor or an angular velocity sensor is installed in the keyboard device 10, the key angle or key angular velocity detected by them may be read.
  Next, the sign (positive / negative) of the detected value (or calculated value) of the key speed read in step ST1-3 is determined (step ST1-5). As a result, if the key speed is positive, the key 120 is in the key pressing process, so the key pressing table 81 of the keyboard force sense imparting table 80 is selected and read (step ST1-6). On the other hand, if the speed of the key 120 is negative, the key 120 is in the process of releasing the key, so the key release table 82 of the keyboard force sense imparting table 80 is selected and read (step ST1-7). Subsequently, the output of the solenoid 140 is determined with reference to the command value tables 81b and 82b while the output of the solenoid 140 is determined with reference to the reaction force pattern tables 81a and 82a of the read one of the tables 81 and 82. The command value for generating is determined. Then, the determined command value is output to the solenoid control driver 148 (step ST1-8), and the solenoid 140 is driven. Thereafter, it is determined whether or not new key position information is input (step ST1-9). As a result, if new key position information is input (YES), the process from step ST1-2 is executed again. If no new key position information is input (NO), the process ends. In this manner, reaction force control based on the keyboard force sense application table 80 is performed.
  FIG. 6A is a graph showing the relationship between the displacement (key pressing amount) of the key 120 and the distribution of the reaction force applied to the finger that performs the key pressing operation when force sense control is performed by the keyboard force sense imparting table 80. This is the reaction force distribution when the key 120 is depressed relatively slowly. In this graph, only the reaction force distribution when the key is pressed is shown, and the reaction force distribution when the key is released is omitted. The reaction force distribution in FIG. 6A is a reaction force distribution based on a keyboard force sense application table 80 stored in advance in the flash memory 52 of the electronic keyboard instrument 1. In the force sense control of the key 120, a combination of the reaction force L1 due to the mass of the mass 130 applied to the key 120 or the inertial load, and the reaction force L2 applied to the key 120 by the solenoid 140 (one-dot chain line in FIG. 6) However, this is a reaction force applied to the finger of the player who performs the key pressing operation. The distribution of the reaction force applied to the player's finger is due to the cooperation between the reaction force L1 of the mass body 130 and the reaction force L2 applied by the solenoid 140, thereby reproducing the reaction force distribution of the acoustic piano. It has become a thing.
  In this case, the reaction force applied to the finger of the player who performs the key pressing operation is changed from the initial value (zero load) when the key pressing amount is zero to the regions A, B, C, and D described below. The distribution includes changes at four locations. Region A is a reaction force distribution due to a static load when lifting of the key 120 and the mass body 130 in a stationary state is started in the initial stage of key depression. In the initial stage of key pressing, the plunger 142 is not yet driven by the solenoid 140, and only the reaction force from the mass body 130 is applied to the key 120. This region A is due to the static load of the key 120 and the mass body 130 in the stationary state, but even in the reaction force characteristic against the key pressing of the acoustic piano, the same distribution is obtained by lifting the key and the hammer at the initial stage of the key pressing. Appears. Region B is a reaction force distribution when driving of the plunger 142 by the solenoid 140 is started. In this area B, the reaction force applied to the key when the damper is started to be lifted by the key is reproduced by the action mechanism of the acoustic piano.
  Region C is a reaction force increase slightly smaller than region B, and is a reaction force distribution created by driving solenoid 140. In region C, the reaction force (so-called action spring load) applied to the key is reproduced by the operation of each part of the action mechanism while the acoustic piano is being depressed. Region D is a mountain-shaped distribution with a rapid and large increase and decrease in the reaction force created by driving solenoid 140. In this region D, a rapid change in the load applied to the key is reproduced along with the escapement in the action mechanism of the acoustic piano (the so-called jack disconnection from the jack fitting state). Here, the first escapement drive control information included in the keyboard force sense imparting table 80 is table data for reproducing the operation feeling of the escapement area on the keyboard of the natural keyboard instrument. Therefore, the reaction force generated in the key 120 in the region D is reproduced by the first escapement drive control information.
[Pedal device]
Next, the pedal device 20 will be described. FIG. 7 is a diagram illustrating a configuration example of the pedal device 20, where (a) is a schematic side sectional view and (b) is a front view. The pedal device 20 includes a plurality of pedals supported to be rotatable with respect to the frame 232, and in this embodiment, three pedals corresponding to a damper pedal, a sostenuto pedal, and a soft pedal in a grand piano are installed. However, in the drawing, only the pedal 220 located on the rightmost side as viewed from the player corresponding to the damper pedal is shown, and the other pedals are not shown. Since the present invention is applied to a pedal 220 corresponding to a damper pedal, the pedal 220 and its peripheral components will be described below.
  The frame 232 is formed in a substantially rectangular box shape by appropriately bending a plate-like member made of metal or the like. The frame 232 has a horizontally long shape extending over positions corresponding to a plurality of pedals, and an opening 233 is formed at a place where the pedal 220 is attached to the front wall 232a. The pedal 220 is formed of a substantially flat member formed in a long shape, and the front side is an operation portion 220 a that is stepped on with a foot, and the rear side is an attachment portion 220 b that is attached to the frame 232. The opening 233 of the frame 232 is formed in a rectangular shape larger than the cross section of the pedal 220.
  In the pedal 220, the operation portion 220 a protrudes forward of the frame 232 in a state where the attachment portion 220 b is inserted into the frame 232 from the opening 233. At this time, the pedal 220 is supported by the pedal fulcrum 234 in the middle of the mounting portion 220b, and the longitudinal direction is swingable up and down around the pedal fulcrum 234.
  A return spring 235 is installed on the lower surface side of the pedal 220. The return spring 235 is a spring material obtained by winding an elastic wire such as metal in a coil shape, and generates a resilient force (biasing force) by being compressed in the coil axis direction. The return spring 235 is disposed in front of the pedal fulcrum 234 and urges the pedal 220 at that position upward.
  In addition, a solenoid 240 installed on the upper surface side of the pedal 220 is provided as a driving means for generating a reaction force due to an electric driving force in response to the operation of the pedal 220. The solenoid 240 is disposed rearward of the pedal fulcrum 234 and includes a coil 241 and a rod 242 that is installed in the center of the coil 241 and can move forward and backward. A yoke (magnetic body) 246 is installed at a position covering the outside (upper and lower and outer circumference) of the coil 241. The rod 242 is disposed so that the axial direction is in the vertical direction, and the lower end is in contact with the upper surface of the pedal 220. A flat plate member 243 is attached to the upper end of the rod 242. The plate member 243 is mounted so that the surface thereof is orthogonal to the axial direction of the rod 242, and the upper surface of the pedal 220 is such that the plate member 243 is in contact with the upper end of the yoke 246 and the lower end of the rod 242 is in the initial position. It comes to contact with. In addition, a coiled spring (biasing means) 244 is interposed between the plate member 243 and the upper wall 232b of the frame 232 projecting right above the solenoid 240. The rod 242 is urged downward by the spring 244.
  The pedal device 20 is provided with a pedal position sensor 245 that detects the position of the pedal 220. As an example, the pedal position sensor 245 can be configured by an optical sensor including a shutter 245a attached to the pedal 220 and a photosensor 245b whose optical path is shielded by the shutter 245a. In this case, the shape of the shutter 245a is set so that the light shielding amount continuously changes according to the change in the position of the pedal 220, and the position of the pedal 220 is uniquely specified from the output signal of the photosensor 245b. . In addition, although the case where the pedal position sensor 245 was installed was demonstrated here, besides that, the pedal speed sensor which detects the speed, acceleration, angle, and angular velocity of the pedal 220, a pedal acceleration sensor, a pedal angle sensor, a pedal It is possible to install any one of angular velocity sensors or a plurality of them.
  A guide member 236 is attached to the pedal 220. The guide member 236 is a substantially rectangular member installed at the front end of the attachment portion 220b. The guide member 236 moves up and down in the frame 232 as the pedal 220 swings to guide the swing of the pedal 220. In addition, the pedal 220 is configured such that the upper end of the guide member 236 comes into contact with the upper limit stopper 237 at the uppermost position where the depression operation is started. On the other hand, a lower limit stopper 238 for defining a lower limit position of the pedal 220 is installed at a position having a predetermined distance from the lower surface of the pedal 220 at the uppermost position. Although not shown, the pedal device 20 is also provided with mechanisms such as a switch contact and a volume detection unit for converting the operation of the pedal 220 into an electrical output.
  As shown in FIG. 1, the drive control circuit of the pedal device 20 includes a main control unit 50 and a solenoid control driver that outputs a driving PWM (pulse width modulation) signal to the solenoid 240 in accordance with a command from the main control unit 50. 248. The flash memory 52 of the main control unit 50 stores a pedal force sense application table 85. Position information of the pedal 220 detected by the pedal position sensor 245 is output to the main control unit 50. A control signal from the main control unit 50 is input to the solenoid control driver 248. The solenoid control driver 248 supplies a drive signal to the solenoid 240 based on a control signal from the main control unit 50.
  FIG. 4B is a diagram showing a configuration example of the pedal force sense application table 85 stored in the flash memory 52. The pedal force sense application table 85 is a table that stores a reaction force pattern to be generated by the solenoid 240 of the pedal device 20. In the pedal force sense application table 85, a push pedal table 86 and a return pedal table 87 are prepared. Further, the push pedal table 86 and the return pedal table 87 include reaction force pattern tables 86a and 87a and command value tables 86b and 87b, respectively. The reaction force pattern tables 86a and 87a are tables for referring to the output value of the solenoid 240 with respect to the detection value of the pedal position sensor 245 (or the value of the speed, acceleration, etc. of the pedal 220 calculated from the detection value). The command value tables 86b and 87b are tables for referring to command values for causing the solenoid 240 to generate the output value. Note that the pedal force sense application table 85 includes drive control information (first half pedal drive control information) for reproducing the operational feeling of the half pedal area of the pedal of the natural keyboard instrument, as will be described later.
  The operation of the pedal device 20 will be described. When the pedal 220 is in the initial position, the weight of the pedal 220, the drag force received by the guide member 236 from the upper limit stopper 237, the biasing force of the return spring 235, and the biasing force of the spring 244 are balanced. Is stationary in a state where the front-rear direction (longitudinal direction) is substantially horizontal (a state indicated by a solid line in FIG. 7). When the pedal 220 in this state is stepped on, it rotates about the pedal fulcrum 234, the return spring 235 is compressed, the spring 244 is compressed, and the rod 242 moves upward. As a result, a reaction force due to the biasing force of the return spring 235 and a reaction force due to the biasing force of the spring 244 are applied to the pedal 220. When the pedal 220 is further depressed, the pedal 220 comes into contact with the lower limit stopper 238 and stops as shown by a dotted line in FIG. On the other hand, when the force depressing the pedal 220 is weakened, the pedal 220 rotates in the opposite direction by the urging force of the return spring 235 and the urging force of the spring 244 and returns to the initial position. In this way, when the pedal 220 is moved by the urging force of the return spring 235 and the spring 244, if the voltage is applied to the coil 241 of the solenoid 240 to drive the rod 242, the return spring 235 and the spring 244 move to the pedal 220. The applied reaction force can be assisted by the reaction force of the solenoid 240. Therefore, by controlling the driving of the solenoid 240 by the main control unit 50, it is possible to perform the force sense control of the reaction force with respect to the operation of the pedal 220.
  FIG. 8 is a flowchart for explaining the procedure of force sense control of the pedal 220. In the force sense control of the pedal 220, first, position information of the pedal 220 is initialized (step ST2-1). Thereafter, the position (depression amount) of the pedal 220 detected by the pedal position sensor 245 is read (step ST2-2). If the pedal speed sensor is provided, the detected speed of the pedal 220 is read (step ST2-3). If the pedal acceleration sensor is provided, the detected acceleration of the pedal 220 is read (step ST2-4). ). When the pedal speed sensor is not provided, the pedal speed may be calculated from the difference between the pedal position data detected by the pedal position sensor 245 (step 2-3). If no pedal acceleration sensor is provided, the pedal acceleration may be calculated from the difference in pedal speed data (step ST2-4). When an angle sensor or an angular velocity sensor is installed in the pedal device 20, the pedal angle or pedal angular velocity detected by them may be read.
  Next, the sign (positive / negative) of the detected value (or calculated value) of the pedal speed read in step ST2-3 is determined (step ST2-5). As a result, when the pedal speed is positive, the pedal 220 is in the process of being depressed (push pedal). Therefore, the push pedal table 86 is selected from the pedal force sense application table 85 (see FIG. 4B). This is read (step ST2-6). On the other hand, when the speed of the pedal 220 is negative, since the depression of the pedal 220 is released (return pedal), the return pedal table 87 is selected from the pedal force sense application table 85 and is read ( Step ST2-7). Subsequently, the output of the solenoid 240 is determined with reference to the command value tables 86b and 87b while the output of the solenoid 240 is determined with reference to the reaction force pattern tables 86a and 87a of the read one of the tables 86 and 87. The command value for generating is determined. Then, the determined command value is output to the solenoid control driver 248 (step ST2-8), and the solenoid 240 is driven. Thereafter, it is determined whether or not new pedal position information is input (step ST2-9). As a result, if new pedal position information is input (YES), the process from step ST2-2 is executed again. If no new pedal position information is input (NO), the process ends. In this way, pedal reaction force control based on the pedal force sense application table 85 is performed.
  FIG. 9A is a graph showing the relationship between the displacement (depression amount) X of the pedal 220 and the reaction force (load) F when force sense control is performed by the pedal force sense imparting table 85. In this graph, only the reaction force distribution when the pedal is depressed is shown, and the reaction force distribution when the pedal is returned is omitted. Further, the reaction force pattern (reaction force distribution with respect to pedal displacement) in the force control is obtained by combining the reaction force F1 by the return spring 235 and the spring 244 as the biasing means and the reaction force F2 by the solenoid 240 as the driving means. It has become a reaction force.
  In the force sense control by the pedal force sense application table 85, when the pedal is stepped on, the amount of depression of the pedal 220 is small and the change rate of the reaction force is small. There are three types of areas: an area A2 in which the pressure increases, and an area A3 in which the rate of change of the reaction force decreases again as the amount of depression of the pedal 220 increases. In the area A1, the state before the damper load is applied to the damper pedal in the acoustic piano is reproduced. In the area A2, the stepping force starts to be transmitted to the damper via the connecting part between the pedal and the damper, and the elastic element of the entire connecting part In the region A3, the state in which the damper is completely separated from the string and the friction is reduced, and the reaction force from the elastic element of the entire connecting portion is not increased is reproduced. ing.
  Thus, in the force sense control device of the present embodiment, the reaction force pattern of the damper pedal of the acoustic piano is faithfully reproduced. In this case, in particular, the reaction force pattern of the half pedal region M resulting from the lift of the damper is reproduced from the second half of the region A2 to the first half of the region A3. Therefore, if the tone and reverberation of the musical sound accompanying the key depression when the pedal 220 is located in the half pedal area M are appropriately set, the player of the electronic keyboard instrument 1 uses the half pedal area M to play the musical sound. It is possible to perform advanced performance operations that slightly change the tone and reverberation. Here, the first half-pedal drive control information included in the pedal force sense application table 85 is data for reproducing the operation feeling of the half-pedal region M in the pedal of the natural keyboard instrument. Accordingly, the reaction force generated in the pedal 220 in the half pedal region is reproduced by the first half pedal drive control information.
[Change in operating feeling of escapement area or half pedal area]
In the present embodiment, as described above, the PC 70, which is an external device that can exchange data with the electronic keyboard instrument 1, the recording medium 73 such as the DVD-ROM that can be read by the electronic keyboard instrument 1 or the PC 70, and the electronic keyboard. Teaching material software S related to the performance technique of the electronic keyboard instrument 1 is stored in at least one of the musical instrument 1 or the server 72 on the communication network 75 to which the PC 70 is connected. FIG. 10 is a conceptual diagram showing an example of data contents included in the educational material software S for learning. As shown in the figure, the learning material software S includes a plurality of learning themes 91 for classifying learning contents and a plurality of lessons 92 for classifying learning levels.
  That is, in the learning material software S shown in FIG. 10, the learning theme 91 is classified into a learning theme 1, a learning theme 2, a learning theme 3,..., And a lesson 92 included in each learning theme is: Lesson 1, Lesson 2, Lesson 3... Each Lesson includes display control data 93 for controlling display contents of the display 71 of the PC 70, solenoid drive control data 94 for controlling driving of the solenoid 140 of the keyboard device 10 or the solenoid 240 of the pedal device 20, Performance instruction data 95 for instructing various performance methods and the like are stored. In the example shown in FIG. 10, the keyboard force sense application table 80 ′ is included in the solenoid drive control data 94 of Lesson 1 of the learning theme 1. Further, the solenoid driving control data 94 of Lesson 1 of the learning theme 3 includes a pedal force sense application table 85 ′. In other words, the keyboard force sense application table 80 ′ or the pedal force sense provision table 85 ′ is stored in correspondence with at least one of the plurality of learning themes 91 or lessons 92 included in the teaching material software S.
  The keyboard force sense application table 80 ′ includes second escapement drive control information. This second escapement drive control information is the operation sensation of the escapement area of the key 120 reproduced by the first escapement drive control information included in the original keyboard force sense application table 80 stored in the flash memory 52. It is information for changing. Further, the pedal force sense application table 85 ′ includes second escapement drive control information. The second escapement drive control information changes the operation feeling of the half pedal area reproduced by the first half pedal drive control information included in the original pedal force sense application table 85 stored in the flash memory 52. It is information for.
  The electronic keyboard instrument 1 of the present embodiment is connected to the external PC 70 or the Internet 75 via the connection terminal unit 69 or the communication interface 68 as described above. The electronic keyboard instrument 1 reads one learning theme 91 or lesson 92 from the plurality of learning themes 91 or lessons 92 included in the learning material software S via these connections, and the read learning theme 91 or The keyboard force sense application table 80 ′ or pedal force sense application table 85 ′ included in the lesson 92 is captured.
  And in the electronic keyboard instrument 1 of this embodiment, when the training regarding the escapement of the keyboard 120 is performed, the keyboard force sense imparting table included in the teaching material software S captured via the communication interface 68 or the connection terminal portion 69. At 80 ', the original keyboard force sense application table 80 stored in advance in the flash memory 52 is rewritten and changed. The operation feeling of the escapement area of the changed key 120 is output by controlling the drive of the solenoid 140 based on the changed keyboard force sense imparting table 80 '.
  This procedure will be specifically described. FIG. 11 is a flowchart of processing based on a lesson related to escapement. The processing shown in the figure is performed when the current lesson is related to the escapement of the key 120 (so-called jack disconnection). Therefore, if the current lesson is not related to escapement (NO in step ST3-1), the process is terminated as it is. If the current lesson is related to escapement (YES in step ST3-1), the lesson content related to escapement read from the teaching material software S is displayed on the display 71 of the PC 70 (step ST3-2). . Then, the electronic keyboard instrument 1 takes in the keyboard force sense imparting table 80 ′ included in the teaching material software S from the PC 70 and rewrites it with the original keyboard force sense imparted table 80 stored in the flash memory 52 (steps). ST3-3). Thereafter, the main control unit 50 of the electronic keyboard instrument 1 outputs a command value in which the PWM duty ratio is changed to the solenoid control driver 148 in accordance with the rewritten keyboard force sense application table 80 '(step ST3-4).
  FIG. 6B shows the displacement (key press amount) of the key 120 and the reaction force applied to the finger that performs the key pressing operation from the key 120 when force control is performed by the rewritten keyboard force sense application table 80 ′. It is a graph which shows the relationship with distribution. The keyboard force sense application table 80 ′ included in the educational material software S approximately doubles the reaction force (load) against the key depression in the escapement area by the original keyboard force sense table 80 stored in the flash memory 52. It is a force sense grant table of contents to be changed to. Therefore, as shown in FIG. 6B, the reaction force (load) against the key depression in the escapement region is emphasized about twice as compared with the normal time. (Step ST3-5). Before the lesson related to escapement ends (NO in step ST3-6), the processes of step ST3-4 and step ST3-5 are repeated. When the lesson regarding escapement is completed (YES in step ST3-6), the next lesson content is displayed on the display 71 of the PC 70 (step ST3-7). At this time, the main control unit 50 returns the rewritten keyboard force sense imparting table 80 ′ in the flash memory 52 to the original keyboard force sense imparting table 80. As a result, the touch feeling in the escapement area is returned to the normal load (step ST3-9), so that the reaction force distribution of the key 120 becomes the distribution shown in FIG. 6A again.
  On the other hand, in the electronic keyboard instrument 1 of the present embodiment, when the lesson about the half pedal in the operation of the pedal 220 is performed, the force control for the depression operation of the pedal 220 is taken in via the communication interface 68 or the connection terminal portion 69. The original pedal force sense imparting table 85 stored in the flash memory 52 is rewritten and changed by the pedal force sense imparting table 85 ′ included in the teaching material software S. Then, by controlling the drive of the solenoid 240 based on the changed pedal force sense application table 85 ', the operation feeling of the changed half pedal region is output.
  This procedure will be specifically described. FIG. 12 is a flowchart of processing based on lessons about the half pedal. The processing shown in the figure is performed when the current lesson relates to half pedal operation. Therefore, if the current lesson is not related to half pedal operation (NO in step ST4-1), the process is terminated as it is. If the current lesson is related to half pedal operation (YES in step ST4-1), the lesson content related to the half pedal read from the learning material software S is displayed on the display 71 of the PC 70 (step ST4-2). ). Then, the electronic keyboard instrument 1 takes in the pedal force sense imparting table 85 ′ included in the educational material software S from the PC 70, and rewrites the original pedal force sense table 85 stored in the flash memory 52 (step). ST4-3). Thereafter, the main control unit 50 of the electronic keyboard instrument 1 outputs a command value in which the PWM duty ratio is changed to the solenoid control driver 248 in accordance with the rewritten pedal force sense application table 85 ′ (step ST4-4).
  Here, FIG. 9B shows the relationship between the displacement (depression amount) X of the pedal 220 and the reaction force (load) F when force sense control is performed using the rewritten pedal force sense application table 85 ′. It is a graph. As shown in FIG. 9 (b), the pedal force sense application table 85 ′ included in the educational material software S is a feeling of depression in the half pedal area by the original pedal force sense application table 85 stored in the flash memory 52. It is a force sense imparting table with the content of changing (load) to about twice. Therefore, as shown in FIG. 9B, the pedal depression feeling (load) in the half pedal region is emphasized approximately twice as compared with the normal time. (Step ST4-5). Before the lesson regarding the half pedal is completed (NO in step ST4-6), the processes of step ST4-4 and step ST4-5 are repeated. When the lesson regarding the half pedal is completed (YES in step ST4-6), the next lesson content is displayed on the display 71 of the PC 70 (step ST4-7). At this time, the main control unit 50 returns the rewritten pedal force sense application table 85 ′ in the flash memory 52 to the original pedal force sense application table 85. As a result, the pedal depression feeling in the half pedal area is returned to the normal load (step ST4-9), so that the reaction force distribution of the pedal 220 becomes the distribution shown in FIG. 9A again.
  As described above, in the electronic keyboard instrument 1 of the present embodiment, the keyboard force for changing the operation feeling of the key 120 in the escapement area reproduced by the keyboard force sense application table 80 stored in the flash memory 52. The haptic application table 85 ′ or the pedal haptic application table 85 ′ for changing the operation feeling of the key 120 in the half pedal area reproduced by the pedal haptic application table 85 is taken in from the outside and stored in the flash memory 52. The original keyboard force sense application table 80 or pedal force sense application table 85 is rewritten and changed. Based on the changed keyboard force sense application table 80 ′ or pedal force sense application table 85 ′, it is possible to create an operation feeling of the escapement area of the key 120 or an operation feeling of the half pedal area of the pedal 220. In this case, the keyboard haptic application table 80 ′ or the pedal haptic application table after the change is more preferable than the operation sensation based on the original keyboard haptic application table 80 or pedal haptic application table 85 stored in advance in the flash memory 52. The operation feeling based on 85 'is such that the reaction force to the performance operation of the key 120 in the escapement region or the reaction force to the performance operation of the pedal 220 in the half pedal region is greater.
  As described above, according to the electronic keyboard instrument 1 of the present embodiment, the operation feeling related to the escapement area of the key 120 or the half pedal area of the pedal 220 according to the information included in the teaching material software S taken from outside. By changing the operation sensation related to the performance technique, it becomes possible for the master of the performance technique to learn the teaching content related to the escapement area or the half pedal area more intuitively. That is, as described above, the amount of change in the load (load) applied from the key 120 to the finger in the escapement region is increased to about twice the normal value, or the load (load) applied from the pedal 220 to the foot in the half pedal region. ) To increase the amount of change to about twice that of normal times to emphasize the load on the escapement area or half pedal area, so that beginners can better understand the sense of escapement and half pedal. Is possible. As a result, a person who learns the performance technique can easily learn the teaching contents of escapement and half pedal. Further, since the operation feeling of the key 120 is changed in accordance with the data of the teaching material software S taken from outside, only the load (load) applied to the finger from the key 120 or the pedal 220 is used only when the escapement or the half pedal is taught. The load (load) applied to the foot can be changed. In other cases, the load can be a normal load. Therefore, the operation feeling of the key 120 and the pedal 220 can be appropriately changed only when necessary according to the contents of the lesson.
  In this embodiment, the teaching material software S relating to the playing technique of the electronic keyboard instrument 1 is a PC 70 that can exchange data with the electronic keyboard instrument 1, and a DVD-ROM 73 that can read data with the electronic keyboard instrument 1 or PC 70. And stored in at least one of the servers 72 on the communication network 75 to which the electronic keyboard instrument 1 or the PC 70 is connected. When one of the learning themes 91 or lesson 92 included in the learning material software S is read by the PC 70, the main control unit 50 of the electronic keyboard instrument 1 corresponds to the read learning theme 91 or the lesson 92. The keyboard force sensation imparting table 80 ′ or the pedal force sense imparting table 85 ′ is taken in, and based on this, the operation sensation of the escapement area of the key 120 or the operation sensation of the half pedal area of the pedal 220 is changed. Thereby, the touch feeling of the key 120 of the electronic keyboard instrument 1 or the depression feeling of the pedal 220 can be changed according to the contents of the teaching material software S, so the contents of the teaching material software S and the operation of the key 120 or the pedal 220 can be changed. The sense can be linked. Therefore, it becomes easy for a learner of performance techniques to intuitively understand the contents of the teaching material software S relating to escapement and half pedal, and these can be quickly and reliably learned.
  In the electronic keyboard instrument 1 of the present embodiment, the teaching material software S for training may be stored in the server 72 on the Internet 75. In this case, the keyboard force sense imparting table 80 ′ or the pedal force sense imparting table 85 ′ may be fetched from the teaching material software S downloaded to the PC 70 via the Internet 75. According to this, the learning material software S having the latest contents can be easily obtained while the learner of the performance technique is at home or the like, and the keyboard force sense imparting table 80 ′ taken in from the learning material software S is included. Alternatively, the pedal force sense application table 85 'makes it possible to effectively learn escapement and half pedal performance techniques. Therefore, it is possible to improve the convenience of performance learning using the teaching material software S for learning.
  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. For example, in the above embodiment, the educational material software S recorded on the recording medium 73 such as a DVD-ROM is read by the PC 70 or the educational material software S stored in the server 72 on the Internet 75 is stored in the PC 70. The case where the data included in the teaching material software S for learning is taken into the electronic keyboard instrument 1 from the PC 70 has been described, but the teaching material software S stored in the server 72 on the Internet 75 is also available. It is also possible to download directly to the electronic keyboard instrument 1. In that case, the contents of the teaching material software S can be displayed on the display device 63 of the electronic keyboard instrument 1, or the voice can be output by the voice output unit 65. If the electronic keyboard instrument 1 is provided with a reading device for a recording medium 73 such as a DVD-ROM, the teaching material software S recorded on the recording medium 73 can be directly read by the electronic keyboard instrument 1.
  Further, in the above embodiment, the force giving tables 80 and 85 stored in the flash memory 52 of the electronic keyboard instrument 1 are used when changing the operation feeling of the escapement area or changing the operation feeling of the half pedal area. In addition, the case has been described in which the force sense tables 80 ′ and 85 ′ included in the educational material software S are rewritten and changed, but in addition to this, the force sense tables 80 and 85 before the change and the force sense after the change Both the grant tables 80 'and 85' are stored in advance in the flash memory 52 of the electronic keyboard instrument 1, and instruction data relating to the selection between the force sense impart tables 80 and 85 and the force sense impart tables 80 'and 85' is electronically stored. It is also possible to change the operation feeling of the escapement area or the operation feeling of the half pedal area by taking in the keyboard instrument 1. In this case, the instruction data may be included in the educational material software S.
  Moreover, the specific change method of the operation feeling of the escapement area | region in the said embodiment and the operation feeling of a half pedal area | region is an example. Therefore, as described above, in addition to making a change that emphasizes the operation feeling of the escapement area and the operation feeling of the half pedal area to about twice the original load, the load of the escapement area and the half pedal area It is also possible to change to other distributions and sizes.
DESCRIPTION OF SYMBOLS 1 Electronic keyboard instrument 10 Keyboard apparatus 20 Pedal apparatus 50 Main control part 52 Flash memory (FLASH ROM)
63 Display device 65 Audio output unit 66 Storage device 68 Communication interface 69 Connection terminal unit 69a Connection cable 71 Display 72 Server 73 Recording medium 75 Internet (communication network)
80 Keyboard force sense table (first escapement drive control information)
85 Pedal force sense table (first half pedal drive control information)
80 'keyboard force sense table (second escapement drive control information)
85 'pedal force sense application table (second half pedal drive control information)
91 Study theme (teaching content)
92 lessons (training level)
93 Display control data 94 Solenoid drive control data 95 Performance instruction data 120 Key 130 Mass body 140 Solenoid 145 Key position sensor 148 Solenoid control driver 220 Pedal 240 Solenoid 245 Pedal position sensor 248 Solenoid control driver S Teaching material software

Claims (5)

  1. The keyboard,
    An actuator for applying reaction force or assistance to the performance operation of the keyboard;
    Storage means for storing drive control information for the keyboard;
    Force control means for controlling a force sense for the operation of the keyboard by controlling the drive of the actuator based on the drive control information;
    In electronic keyboard instrument with
    The drive control information stored in the storage means includes first escapement drive control information for reproducing an operation feeling of an escapement area in a keyboard of a natural keyboard instrument,
    Comprising information fetching means for fetching from the outside second escapement drive control information for changing the operation feeling of the escapement region reproduced by the first escapement drive control information;
    At least an external device capable of transferring data to and from the electronic keyboard instrument, the electronic keyboard instrument or a recording medium readable by the external device, and a server on a communication network to which the electronic keyboard instrument or the external device is connected. In any one of the above, the teaching material data for training related to the performance technique of the electronic keyboard instrument is stored,
    The second escapement drive control information is stored corresponding to at least one of a plurality of learning contents or learning levels included in the learning material data for learning,
    When reading any learning content or learning level included in the teaching material data for training with the external device or the electronic keyboard instrument,
    The information capturing means captures the second escapement drive control information corresponding to the read teaching content or learning level,
    When the second escapement drive control information is taken in by the information take-in means, the first escapement drive control information stored in the storage means is changed to the second escapement drive control information. By doing so, an operation feeling of the operation of the escapement area of the keyboard changed based on the second escapement drive control information is output.
  2. The operational feeling based on the second escapement drive control information is more reactive to the performance operation of the keyboard in the escapement area than the operational feeling based on the first escapement drive control information. The electronic keyboard instrument according to claim 1, wherein
  3. Pedal,
    An actuator for applying a reaction force to the performance operation of the pedal;
    Storage means for storing drive control information for the pedal;
    Force control means for controlling a force sense for the operation of the pedal by controlling the drive of the actuator based on the drive control information;
    In electronic keyboard instrument with
    The drive control information stored in the storage means includes first half pedal drive control information for reproducing an operation feeling of a half pedal area in a pedal of a natural keyboard instrument,
    Information fetching means for fetching from the outside second half pedal drive control information for changing the operation feeling of the half pedal area reproduced by the first half pedal drive control information;
    At least an external device capable of transferring data to and from the electronic keyboard instrument, the electronic keyboard instrument or a recording medium readable by the external device, and a server on a communication network to which the electronic keyboard instrument or the external device is connected. In any one of the above, the teaching material data for training related to the performance technique of the electronic keyboard instrument is stored,
    The second half pedal drive control information is stored corresponding to at least one of a plurality of learning contents or learning levels included in the learning material data for learning,
    When reading any learning content or learning level included in the teaching material data for training with the external device or the electronic keyboard instrument,
    The information fetching means fetches the second half pedal drive control information corresponding to the read lesson content or lesson level,
    When the second half pedal drive control information is fetched by the information fetching means, the first half pedal drive control information stored in the storage means is changed to the second half pedal drive control information. By doing so, the operation feeling of the half pedal area of the pedal changed based on the second half pedal drive control information is output.
  4. The reaction force to the performance operation of the pedal in the half pedal region is greater in the operation sense based on the second half pedal drive control information than in the operation sense based on the first half pedal drive control information. The electronic keyboard instrument according to claim 3, wherein
  5. The training material data is stored in a server on the Internet,
    The information capturing means includes the second escapement drive control information or the second half pedal drive control information included in the educational material data downloaded to the external device or the electronic keyboard instrument via the Internet. The electronic keyboard instrument according to claim 1 , wherein the electronic keyboard instrument is captured.
JP2009249024A 2009-10-29 2009-10-29 Electronic keyboard instrument Expired - Fee Related JP5568955B2 (en)

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