JP5434393B2 - Electronic percussion instrument - Google Patents

Description

  The present invention relates to an electronic percussion instrument that generates an electronic performance sound in response to a performance operation of a performance operator having a hitting surface.

  Conventionally, a performance sound simulating a percussion instrument such as a drum or a cymbal according to a striking operation with respect to the performance manipulator has been conventionally provided with a pad-shaped performance manipulator having a striking surface (hereinafter sometimes simply referred to as a “pad”). There are electronic percussion instruments that generate In such an electronic percussion instrument, when a pad is hit with a stick or a hand, performance information associated with the hit pad is read, and a performance sound or a short phrase is generated accordingly. It is like that.

  Such an electronic percussion instrument includes a striking force detection unit that detects a signal related to a striking force according to a striking operation on the pad, and a control unit that performs sound generation processing based on the detection of the striking force detection unit. Based on the detection of the striking force detection means, the control means performs sound generation processing corresponding to the striking against the pad. The striking force detection means includes a piezo element that detects vibration caused by striking the pad and outputs an electrical signal.

  Conventional electronic percussion instruments mainly use only the striking force signal detected by the striking force detecting means as described above as a material for sound generation determination during sound generation processing. However, there is a multi-pad type electronic percussion instrument having a plurality of pads arranged adjacent to each other. In such a multi-pad type electronic percussion instrument, since the pads are arranged close to each other, a hitting force signal jump (crosstalk) may occur due to the hitting of another adjacent pad. As a result, the hitting force detection means may detect the hitting force signal of the pad that is not actually hit. Therefore, there is a problem that it is difficult to always accurately identify the hit pad.

  In view of this, the multi-pad electronic percussion instrument includes, for example, a hitting position detection means for detecting a signal related to the position of the hitting operation on the pad, in addition to the hitting force detection means described above, as shown in Patent Document 1, Some are configured to perform sound generation processing based on detection by the force detection means and the hitting position detection means. The hitting position detecting means is configured by a contact sensor or the like attached to the back side of the pad, and a corresponding one for each pad is provided separately.

JP 2003-108140 A

  By the way, in the electronic percussion instrument as described above, in consideration of performance operability, the pad hitting surface is often made of a flexible material such as rubber. Therefore, when the pad is hit with a strong force, the hitting surface of the pad is deformed. The deformation of the hitting surface due to such a strong hit propagates to other pads arranged adjacent to each other. As a result, even in the contact sensor (striking position detecting means), there is a problem in that crosstalk occurs that detects an input signal of a pad that is not actually struck. In particular, in an electronic percussion instrument having a pad formed by dividing one continuous hitting surface into a plurality of sections, the deformation of the hitting surface generated by one pad is easy to propagate to the adjacent pad, so that one hitting surface was hit hard. In such a case, such erroneous detection is likely to occur with a contact sensor corresponding to another hitting surface. In this case, there is a problem that erroneous pronunciation occurs by erroneously determining that there is a hit on a pad that is not actually hit.

  The present invention has been made in view of the above points, and an object of the present invention is to erroneously determine that a performance operator that is not actually hit is hit with an electronic percussion instrument having a performance operator having a hitting surface. Is to prevent the occurrence of erroneous pronunciation.

  In order to solve the above-described problems, an electronic percussion instrument according to the present invention is a batting that detects a plurality of performance operators (HPi, RPi) having a striking surface and a signal relating to the position of the batting operation on the performance operators (HPi, RPi). Position detecting means (SW), striking force detecting means (AD) for detecting a signal (PiLevel) relating to striking force according to the striking operation on the performance operator (HPi, RPi), striking position detecting means (SW) and striking Control means (45) for performing sound generation processing corresponding to the hitting operation on the performance operator (HPi, RPi) based on the detection of the force detecting means (AD), and the control means (45) detects the hitting position. When the input signal received by the means (SW) is scanned at regular intervals and the input signal is detected continuously for a predetermined number of times (N1 or N2), the performance operator (HPi, RPi) is detected. A sound generation process for generating a musical tone corresponding to the performance operator (HPi, RPi) with the hit determination flag turned on based on the hit force (PiLevel) detected by the hit force detecting means (AD). When the striking force (PiLevel) used in the previous sound generation process is smaller than a predetermined threshold (Hth, Rth) (NO in ST4-5 and ST4-15), the number of times is predetermined. When the input signal is detected for the first number of times (N1) continuously, a normal detection process is performed to turn on the hit determination flag for the performance operator (HPi, RPi) (ST4-8, ST4-18). When the striking force (PiLevel) used in the sound generation process is equal to or greater than a predetermined threshold (Hth, Rth) (YES in ST4-5 and ST4-15), a predetermined period (Ts) is thereafter passed ( ST 4-6, YES in ST4-16) is a performance operator (HPi,) when an input signal is detected continuously for a second number of times (N2 or N3) greater than the predetermined number of times (N1). Crosstalk cancellation processing for turning on the hit determination flag for RPi) is performed (ST4-7, ST4-17).

  According to the electronic percussion instrument of the present invention, the normal detection process with different criteria for turning on the hit determination flag for the performance operator is different depending on whether the hitting force used in the previous sound generation process is larger or smaller than a predetermined threshold. It is configured to switch between the crosstalk cancellation processing. That is, when the striking force used in the previous sound generation process is smaller than the predetermined threshold value, the normal detection process is performed in which the number of continuous detections of the input signal to the striking position detection means for turning on the striking determination flag for the performance operator is small. On the other hand, when the striking force used in the previous sound generation process is equal to or greater than a predetermined threshold, the crosstalk canceling process has a large number of continuous detections of the input signal to the striking position detection means for turning on the striking determination flag for the performance operator. I do.

  With this configuration, after a strong hit that causes a jump in the input signal to the hitting position detecting means is performed, until the predetermined period elapses, crosstalk cancellation is performed instead of the normal hitting process described above. Processing is performed. Thereby, even when an input signal due to a jump (crosstalk) is detected by the striking position detection means corresponding to the performance operator that is not actually hit, it is possible to prevent erroneous determination that there is a hit on the performance operator. . Accordingly, it is possible to effectively prevent the occurrence of erroneous sound generation with respect to other performance operators after a strong blow of one performance operator.

  In the electronic percussion instrument described above, the performance operators (HPi, RPi) have a solid pad (RPi) having at least one set of three-dimensional striking surfaces arranged adjacent to each other and a plane having a planar striking surface. The impact position detecting means (SW) includes a pad (HPi), and the impact position detection means (SW) is provided with a separate one (Sri, SWhi) for detecting an impact operation on the solid pad (RPi) and the planar pad (HPi). As the force detection means (AD), it is preferable that the one (ADi) for detecting the striking force (PiLevel) of both the pair of solid pads (RPi) and the flat pad (HPi) is provided in common.

Thus, in the so-called multipad electronic percussion instrument having a solid pad having a three-dimensional striking surface and a flat pad having a flat striking surface, the shape of the pad surface differs between the three-dimensional pad and the flat pad. In many cases, the mode of the batting operation on them is different. In this specific example, the flat pad is often struck from directly above at the tip of the stick, while the three-dimensional pad is often struck from diagonally above at the belly portion of the stick. Therefore, when the striking surface of the pad is made of a flexible material such as rubber, the striking force acts in an oblique direction, particularly when a three-dimensional pad is struck, compared to when a flat pad is struck. Thus, the deformation of the hitting surface is easily propagated over a wide range. Therefore, it is likely that a hit with a solid pad is erroneously detected as being hit on an adjacent flat pad that is not actually hit.
On the other hand, in the electronic percussion instrument according to the present invention, even if an input signal due to a jump is detected by the corresponding hitting position detecting means, the hitting surface of the performance operator that is not actually hit is deformed. Since the crosstalk canceling process described above can suppress erroneous determination that the performance operator is hit, it can effectively prevent erroneous detection that there is a hit on an adjacent plane pad by hitting a solid pad. become. That is, according to the present invention, the crosstalk phenomenon peculiar to the multi-pad electronic percussion instrument having the adjacent three-dimensional pad and the flat pad can be suppressed, so that it is possible to effectively prevent the occurrence of erroneous sound in the multi-pad electronic percussion instrument can do.

  In the electronic percussion instrument, when the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad (RPi), the control means (45) uses the striking force (PiLevel) used in the previous sound generation process. ) Is greater than or equal to the first threshold value (Rth), the crosstalk canceling process is performed. On the other hand, if the musical sound generated in the previous sounding process is a musical sound corresponding to the flat pad (HPi), the previous sounding process is performed. The crosstalk cancellation process may be performed when the striking force (PiLevel) used in is equal to or greater than a second threshold (Hth) different from the first threshold (Rth). That is, here, the threshold value of the striking force for switching between the normal detection process and the crosstalk canceling process is different depending on whether a solid pad is hit or a flat pad is hit. In this case, it is desirable to set the second threshold value (Hth) for the planar pad to be larger than the first threshold value (Rth) for the three-dimensional pad. In this way, since it is possible to perform the crosstalk canceling process with a relatively weak strike against the strike of the solid pad, the adjacent flat pad can be used for the strike operation of the solid pad that is likely to cause an erroneous detection of the input signal. It is possible to effectively suppress the erroneous determination that there is a hit. As a result, even if there is a strong striking operation that causes a jump of the input signal to the other pad for each of the flat pad and the three-dimensional pad having different striking operation modes, It is possible to appropriately prevent the erroneous determination that the pad is hit.

  In the electronic percussion instrument, when the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad (RPi), the control means (45) uses the striking force (PiLevel) used in the previous sound generation process. ) Is greater than a predetermined threshold value (Rth), and thereafter, until the first period (Tsr) elapses, the crosstalk cancellation process is performed, while the musical sound generated in the previous sound generation process is detected by the flat pad (HPi). ), When the striking force (PiLevel) used in the previous sound generation process is greater than a predetermined threshold value (Hth), then a second predetermined period different from the first period (Tsr) It is preferable to perform the crosstalk cancellation process until (Tsh) elapses. That is, here, the execution period of the crosstalk canceling process is different depending on whether or not there is a striking operation on the three-dimensional pad and a striking operation on the flat pad. In this case, it is desirable to set the execution period of the crosstalk cancellation process so that the execution period (Tsr) for striking the solid pad is longer than the execution period (Tsh) for striking the flat pad. In this way, it is possible to perform the crosstalk canceling process with a higher probability for the hitting of the three-dimensional pad. Therefore, it is effective to erroneously determine that there is a hit on the adjacent plane pad for the hitting operation of the three-dimensional pad. Can be suppressed.

In the electronic percussion instrument described above, the control means (45), when the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad (RPi), in the crosstalk cancellation process, When the input signal for SW) is continuously detected for a predetermined number of times (N2), which is the second number of times, the hit determination flag for the solid pad (RPi) is turned on, while the musical sound generated in the previous sound generation process is flat. When the musical sound corresponds to the pad (HPi), in the crosstalk cancellation process, the input signal to the striking position detection means (SW) is continuously different from the above predetermined number (N2) for another predetermined number (N3). When detected, the hit determination flag for the flat pad (HPi) can be turned on. That is, here, the number of continuous detections of the input signal to the striking position detecting means for turning on the striking determination flag in the crosstalk canceling process is different between the solid pad and the flat pad. In this case, it is desirable to set the number of continuous detections of the input signal (N2) for the strike of the three-dimensional pad to be smaller than the number of continuous detections of the input signal (N3) for the strike of the flat pad. . As a result, it is possible to perform the crosstalk canceling process with a higher probability for the hitting of the three-dimensional pad, so it is effective to erroneously determine that there is a hit on the adjacent planar pad for the hitting operation of the three-dimensional pad. Can be suppressed.
In addition, the code | symbol in said parenthesis shows the code | symbol attached | subjected to the corresponding component or process in description of embodiment mentioned later as an example of this invention.

  According to the present invention, in an electronic percussion instrument having a plurality of performance operators having a striking surface, it is possible to suppress erroneously determining that a performance operator that is not actually hit is hit, and effectively generating erroneous pronunciation. Can be prevented.

1 is a schematic plan view of an electronic percussion instrument according to an embodiment of the present invention. It is a figure which shows schematic structural example of an electronic percussion instrument, (a) is a side view of an electronic percussion instrument, (b) is a sectional side view of a pair of plane pads and rim pads provided in the electronic percussion instrument, and (c) is a performance operation It is a top view of a child. It is a block diagram which shows the function structure of an electronic percussion instrument. It is a flowchart (main flow) which shows the flow of the process by an electronic percussion instrument. It is a flowchart which shows a timer interruption process. It is a schematic block diagram which shows the function structure for performing a hit | damage detection process and a sound generation control process. It is a flowchart which shows the subroutine of a hit | damage detection process. It is a flowchart which shows the subroutine of an impact position detection process. The figure which shows typically the specific example of the hit detection by a contact sensor, (a) when turning on a hit determination flag at the time of a normal detection process, (b) when turning on a hit determination flag at the time of a crosstalk cancellation process Indicates. It is a flowchart which shows the subroutine of a striking force detection process. It is a flowchart which shows the subroutine of sound generation control processing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when referring to the front-rear direction or the front side and the back side, it indicates the front-rear direction or the front side and the back side as viewed from the player side of the electronic percussion instrument 1 described later, and when referring to the left-right (lateral) direction, It shall indicate the left and right (lateral) direction as seen from the performer side. 1 and 2 are diagrams showing a schematic configuration example of an electronic percussion instrument 1 according to an embodiment of the present invention. FIG. 1 is a plan view of the electronic percussion instrument 1. FIG. 2 (a) is a side view of the electronic percussion instrument 1. FIGS. 2B and 2B are side sectional views of a pair of plane pads HPi and rim pads RPi described later, and FIG. 3C is a plan view of the performance operator 10 (plane pads HPi and rim pads RPi). The electronic percussion instrument 1 is a desktop electronic musical instrument and is accommodated in a case 2 formed in a substantially flat plate shape. A performance operator 10 composed of a plurality of pads P for performing a performance operation is disposed on the back side of the upper surface of the case 2, and a setting operation of the electronic percussion instrument 1 is performed at a corner on the front side. A setting operation unit 30 is installed. As shown in FIG. 2A, a terminal portion 3 having a plurality of terminals for connecting a power source or connecting an external device is provided on the rear surface of the case 2.

  As shown in FIG. 1, the performance operator 10 has a substantially rectangular outer shape, and is partitioned in a lattice shape along the front-rear direction and the left-right direction as viewed from the performer side (front side). In the present embodiment, the performance operator 10 is divided into four rows in the front-rear direction and three rows in the left-right direction, and a total of twelve pads P are arranged.

  As shown in FIG. 1, the three pads P that are arranged in a horizontal row on the back side and the three pads P that are arranged in a horizontal row on the front side are a plan view. As shown in FIG. 2 (a), the outer shape is a three-dimensional striking surface V that is raised in a substantially cylindrical surface with the left-right direction as the axial direction. Hereinafter, these six pads are referred to as rim pads (three-dimensional pads) RPi (i = 1 to 6). Then, the three rim pads RPi arranged on the back side are designated as rim pad RP1, rim pad RP2, and rim pad RP3 in this order from the left, and the three rim pads RPi arranged on the near side are rim pad RP4, rim pad RP5, and rim pad RP6 in order from the left. And

  Further, as shown in FIG. 1, all six pads P arranged between the rim pads RP1 to RP3 and the rim pads RP4 to RP6 in the front-rear direction have a substantially square shape in plan view. As shown in FIG. 2 (a), it has a planar hitting surface V. Hereinafter, these six pads are referred to as planar pads HPi (i = 1 to 6). Of the six flat pads HPi arranged in two rows in the front and rear, the three pads HPi arranged on the back side are designated HP1, HP2, HP3 in order from the left, and the three pads arranged on the front side. HPi is HP4, HP5 and HP6 in order from the left.

  Further, as shown in FIG. 2A, the performance operator 10 has a step T as a boundary, and the back surface thereof is higher than the front surface. The rim pads RP1 to RP3 and the flat pads HP1 to HP3 are arranged on the rear surface (upper surface), and the flat pads HP4 to HP6 and rim pads RP4 to RP4 are arranged on the front surface (lower surface). RP6 is arranged. Then, the upper side flat pad HP1 and the rim pad RP1, the flat pad HP2 and the rim pad RP2, the flat pad HP3 and the rim pad RP3 are arranged adjacent to each other in the front and rear, and the lower rim pad RP4, the flat pad HP4, and the rim pad RP5 The planar pad HP5, the rim pad RP6, and the planar pad HP6 are arranged adjacent to each other in the front-rear direction.

  The rim pad RPi is suitable for a performance operation of striking the striking surface V raised in a cylindrical surface with the abdomen (side surface) of a stick (not shown). In such performance operation with respect to the rim pad RPi, the rim pad RPi is often hit in an oblique direction from the upper side toward the lower side due to the angle at which the stick is swung down. On the other hand, the flat pad HPi is suitable for a performance operation of hitting a flat hitting surface V with the tip of a stick. In such a performance operation, the flat pad HPi is often struck in a direction perpendicular to the hitting surface V from directly above to below. Note that the performance operation for the rim pad RPi and the flat pad HPi is not limited to the impact with a stick, but may be an impact performed with a part of the body such as a hand, or a performance operation for pressing the strike surface V with a hand or the like in addition to the impact. It is also possible to perform.

  As shown in FIG. 2B, the striking surface V of each flat pad HPi and rim pad RPi is composed of a sheet-like surface material 21 made of an elastic material such as hard rubber. Between each planar pad HPi and the rim pad RPi, a lattice-like groove 12 is provided. Each rim pad RPi and planar pad HPi are partitioned by the groove portion 12. A flat elastic member 25 made of rubber or the like is installed on the back side of the surface material 21, and a contact sensor placed on a reinforcing plate (pad body) 23 on the lower surface of the elastic member 25. (Blow position detection means) SW is provided. The contact sensor SW is composed of a film-like switch (sheet-like pressure sensor). As shown in FIGS. 2B and 2C, the contact sensor SW is connected to the contact sensor SWri (i = 1 to 6) installed on the lower surface side of each rim pad RPi and the lower surface side of each planar pad HPi. It is composed of installed contact sensors SWhi (i = 1 to 6), and a total of 12 sensors are installed. Therefore, when the hitting surface V is deformed in response to the hitting operation on either the flat pad HPi or the rim pad RPi, the corresponding contact sensor SWhi or contact sensor SWri is switched on.

  The time for which the contact sensor SWhi or the contact sensor SWri is switched on (switch-on duration) is determined according to the deformation size (deformation amount) of the striking surface V generated in the flat pad HPi or the rim pad RPi. . That is, when the deformation of the hitting surface V generated on the flat pad HPi or the rim pad RPi is large, the switch-on duration of the contact sensor SWhi or the contact sensor SWri becomes long, and when the deformation of the hitting surface V is small, the contact sensor SWhi. Alternatively, the switch-on continuation time of the contact sensor SWri is shortened. And the control part 45 mentioned later is comprised so that the presence or absence of the said switch-on which the contact sensor SW receives may be continuously scanned for every predetermined time (for example, about 10 ms-30 ms), and, as a result of the said scan, contact When the switch-on of the sensor SW is detected continuously for a predetermined number of times, a process for turning on the hit determination flag for the corresponding flat pad HPi or rim pad RPi is performed.

  Further, on the lower surface side of the reinforcing plate 23 on which the contact sensor SW is placed, an end side 21a of the surface material 21 extending from the upper surface side of the planar pad HPi or the rim pad RPi is laid in a wound state. As a result, the reinforcing plate 23 is elastically supported via the end 21 a of the surface material 21 on the base 24 (configured by a part of the case 2) installed below the performance operator 10. .

  On the lower surface side of the reinforcing plate 23, an impact sensor (striking force detecting means) AD formed in a small plate shape that comes into surface contact with the reinforcing plate 23 is installed. The striking sensor AD is configured by a piezo element that detects vibration caused by striking the flat pad HPi and the rim pad RPi and outputs an electrical signal. The striking sensor AD is affixed to the lower surface of the reinforcing plate 23 with a piezo tape (cushion material) 26a, and detects the striking strength (striking force) when a striking operation is performed on the flat pad HPi or the rim pad RPi. Can do. As shown in FIGS. 2B and 2C, the impact sensor AD is provided on the lower surface side of the position corresponding to each planar pad HPi (i = 1 to 6). 6), a total of 6 are installed. Each striking sensor ADi detects the striking force of the corresponding flat pads HP1 to HP6 and also detects the striking force of the rim pad RPi of the same number adjacent to each flat pad HPi. That is, the six impact sensors ADi (i = 1 to 6) are shared by the plane pad HP1 and the rim pad RP1, the plane pad HP2 and the rim pad RP2,..., The plane pad HP6 and the rim pad RP6, respectively.

  On the other hand, as shown in FIG. 1, on the panel surface 31 of the setting operation unit 30, various operation keys 32 including a cursor switch and an input switch, a volume adjustment knob 33, a display unit 34 including a liquid crystal panel, a performance An LED 36 and the like for lighting the operation state are arranged. In addition, an audio output unit (not shown) including a speaker for outputting various sounds such as performance sounds is also arranged near the panel surface 31. The display unit 34 displays a setting operation screen for performing various setting operations.

  FIG. 3 is a block diagram showing a functional configuration of the electronic percussion instrument 1. The electronic percussion instrument 1 includes a performance operator 10, a setting operation unit 30, a sound source (sound source circuit) 41, a sound system 42, a ROM 43, a RAM 44, a main control unit (CPU) 45, a timer 46, a storage unit 47, a display unit 34, and an interface. (I / F) 48 are provided, and these units are connected to each other via a bus 50.

  The performance operator 10 includes six plane pads HPi and six rim pads RPi (i = 1 to 6) having the above-described configuration, and the plane pads HPi and rim pads RPi have a total of twelve. Contact sensors SWhi and SWri and a total of six impact sensors ADi (i = 1 to 6) are attached. The performance operator 10 is connected to the bus 50 via the operation interface 13. The main control unit (CPU) 45 serves to control the entire electronic percussion instrument 1, and functions as means for executing the processes when various processes described later are performed on the electronic percussion instrument 1.

  The timer 46 measures an interrupt time and various times in a timer interrupt process described later. The ROM 43 stores a control program executed by the main control unit 45, various application programs including a data table and a control program, various data, and the like. Further, performance sound data assigned to each of the pads HPi and RPi can be stored. The RAM 44 temporarily stores automatic performance data, various input information, calculation results, and the like. The storage unit 47 includes a storage medium such as an HDD or a flash memory, and can store various setting information, performance data, and the like. The display unit 34 includes a liquid crystal display (LCD) for displaying various information. The display unit 34 may be composed of a light emitting diode (LED). The interface (I / F) 48 connects an external performance device 49, and inputs various signals (for example, a MIDI (Musical Instrument Digital Interface) signal) from the external performance device 49, or the external performance device 49. Output a signal. The sound source 41 converts performance data input by the operation of the performance operator 10 or preset automatic performance data into a musical sound signal. The sound system 42 includes an amplifier, a speaker, and the like that convert a musical sound signal from the sound source 41 into sound.

  In the electronic percussion instrument 1 of the present embodiment, timbre data stored in advance in the ROM 43 or the storage unit 47 can be used as the sound source data of the performance sound generated in response to the performance operation of the performance operator 10. In addition, in the case of having a sampling function for taking in sound from the outside, it is also possible to use sampled waveform data as sound source data of performance sound.

  Next, various processes performed in the electronic percussion instrument 1 having the above configuration will be described. FIG. 4 is a flowchart (main flow) showing a flow of processing in the electronic percussion instrument 1. When the electronic percussion instrument 1 is turned on, first, processing according to the main flow shown in FIG. 4 is executed. This process is continuously executed until the power of the electronic percussion instrument 1 is turned off. In this main flow, first, the setting of each part of the electronic percussion instrument 1 is initialized (step ST1-1). Thereafter, a setting operation acceptance process is executed (step ST1-2). The setting operation accepting process is a process corresponding to the operation of the setting operation unit 30, whereby various functions of the electronic percussion instrument 1 are set. The setting operation process in step ST1-2 is repeatedly executed while the electronic percussion instrument 1 is powered on.

  Then, timer interrupt processing is executed while the main flow is being executed. FIG. 5 is a flowchart showing timer interrupt processing. In the timer interrupt process, a process of increasing the time register value by a certain value is performed at every predetermined interrupt time (for example, an interval of about 0.1 to 1.0 ms) counted by the timer 46 (step ST2- 1). Whenever the time register value is increased, the hit detection process (step ST2-2) and the sound generation control process (step ST2-3) are performed. In the hit detection process, the hit operation for the performance operator 10 is detected. On the other hand, in the sound generation control process, generation of a musical sound signal based on the hit detection process is instructed. Specific procedures of these hit detection processing and sound generation control processing will be described in detail below.

  FIG. 6 is a schematic block diagram showing a functional configuration for performing the hit detection process in step ST2-2 and the sound generation control process in step ST2-3. FIG. 7 is a flowchart showing a subroutine of the hit detection process in step ST2-2. In the hit detection process of FIG. 7, a hit position detection process (step ST3-1) and a hitting force detection process (step ST3-2) are performed. This hit detection process is performed by the hit detection processing unit 45a included in the main control unit 45 shown in FIG. 6, and is detected by the contact sensor (batch position detecting means) SW in the hit position detection process of step ST3-1. The switch-on data and the detection value PiLevel of the striking force detected by the striking sensor (striking force detecting means) AD in the striking force detection process in step ST3-2 are output to the striking detection processing section 45a of the main control section 45. Is done.

  Then, various sound generation control data such as a flat pad hitting flag HPiSW, a rim pad hitting flag RPiSW, a hitting force detection flag Pikeyon, and a hitting force PiLevel, which will be described later, obtained by the hit detection processing are sent to the tone generation control processing unit 45b. Sent. The sound generation control processing unit 45b performs sound generation control processing in step ST2-3 based on these various sound generation control data. The specific contents of the striking position detection process in step ST3-1, the striking force detection process in step ST3-2, and the sound generation control process in step ST2-3 will be described in detail below.

  FIG. 8 is a flowchart showing a subroutine of the striking position detection process (step ST3-1). FIG. 9 is a diagram schematically showing a specific example of hit detection by the contact sensor SW. FIG. 9A shows a case where the hit determination flag is turned on during normal detection processing, and FIG. A case where the hit determination flag is turned on during processing is shown. In the striking position detection process of FIG. 8, the striking operation is detected for the set of the flat pad HP1 and the rim pad RP1 with the pad number i ← 1 (step ST4-1). Here, by counting up from pad number i = 1 to 6 in order, the striking position detection process of the set of plane pad HP6 and rim pad RP6 is sequentially performed from the set of plane pad HP1 and rim pad RP1. However, since the processing procedure for each group is common, the following description will be described with the pad number i including the process for each group.

  Here, first, it is determined whether or not there is switch-on detection of the rim pad RPi (meaning switch-on detection of the contact sensor SWri corresponding to the rim pad RPi, the same applies hereinafter) (step ST4-2). As a result, if the switch-on detection of the rim pad RPi is not detected (NO), the rim pad switch-on detection count NRPi ← 0 is set (step ST4-3). On the other hand, if the switch-on detection of the rim pad RPi is detected (YES), the rim pad switch-on detection count NRPi is counted up to NRPi ← NRPi + 1 (step ST4-4). Then, in the previous sound generation control process (the contents of this process will be described later), it is determined whether or not the crosstalk cancellation process flag PiC = 1 (step ST4-5).

  As will be described later, the crosstalk cancellation processing here refers to turning on the hit determination flag for the flat pad HPi or the rim pad RPi when the switch ON is detected by the contact sensor SW continuously more times than in the normal detection processing. It is a process to make. The crosstalk cancellation processing flag PiC is a flag that instructs the execution of the crosstalk cancellation processing when the striking force PiLevel used in the sound generation control processing described later is equal to or greater than a predetermined threshold Hth or Rth.

  If the crosstalk cancellation processing flag PiC = 1 (YES) in step ST4-5, the timer TimePiC for counting the elapsed time after PiC = 1 is subsequently less than a predetermined time (first period) Tsr. It is determined whether or not (step ST4-6). Here, the predetermined time Tsr is a time set to continue the crosstalk cancellation processing for the rim pad RPi (Tsr = about 10 to 30 ms as an example). As a result, if the timer TimePiC is less than the predetermined time Tsr (YES), the execution of the crosstalk cancellation processing mode is continued. In the crosstalk cancellation processing mode, it is determined whether or not the number of rim pad switch-on detections NRPi = N2 (step ST4-7). N2 is the number of times of continuous switch-on for turning on the hit determination flag in the crosstalk cancellation processing of the rim pad RPi, and in this embodiment, N2 = 6 times.

  On the other hand, when the timer TimePiC is equal to or longer than the predetermined time Tsr (NO), the crosstalk cancellation processing mode is canceled and the normal detection processing mode is set. Also, when PiC = 1 is not 1 in the previous step ST4-5 (NO), the normal detection processing mode is set. In this normal detection processing mode, it is determined whether or not the number of rim pad switch-on detections NRPi = N1 (step ST4-8). N1 is the number of times of continuous switch-on for turning on the hit determination flag in the normal detection process, and in this embodiment, N1 = 2 times. In addition, if N1 <N2, the specific number of times N1 and N2 is not limited to the above, and may be another number.

  When NRPi = N2 in step ST4-7 in the crosstalk cancellation processing mode (YES), or when NRPi = N1 in step ST4-8 in the normal detection processing mode (YES), the rim pad hit flag (hit determination) Flag) RPiSW ← 1 (flag on) is set (step ST4-9). On the other hand, if NRPi = N2 is not satisfied in step ST4-7 (NO), or if NRPi = N1 is not satisfied in step ST4-8 (NO), the rim pad striking flag RPiSW ← 0 (flag off) is set (step ST4-10). ).

  That is, from the start of the crosstalk cancellation processing mode for the rim pad RPi until the predetermined time Tsr elapses, the hit determination flag for the rim pad RPi is turned on when N2 = 6 consecutive switch-on detections, and other normal detections are performed. In the processing mode, the hit determination flag for the rim pad RPi is turned on when N1 = 2 consecutive switch-on detections.

  Next, it is determined whether or not there is a switch-on detection of the flat pad HPi (meaning switch-on detection of the contact sensor SWhi corresponding to the flat pad HPi, the same applies hereinafter) (step ST4-12). As a result, if there is no switch-on detection of the planar pad HPi (NO), the number of planar pad switch-on detection times NHPi ← 0 is set (step ST4-13). On the other hand, if there is a switch-on detection of the flat pad HPi (YES), the flat pad switch-on detection count NHPi is counted up to NHPi ← NHPi + 1 (step ST4-14). Then, it is determined whether or not the crosstalk cancellation processing flag PiC = 1 (step ST4-15). As a result, if PiC = 1 (YES), it is subsequently determined whether or not the timer TimePiC for counting the elapsed time since PiC = 1 is less than a predetermined time (second period) Tsh (step) ST4-16). The predetermined time Tsh here is a time (Tsh = about 10 to 30 ms as an example) set so as to continue the crosstalk canceling process for the planar pad HPi. The predetermined time Tsh may be set to the same time as the predetermined time Tsr set for the rim pad RPi or may be set to a different time. As a result, if the timer TimePiC is less than the predetermined time Tsh (YES), the execution of the crosstalk cancellation processing mode is continued. In the crosstalk cancel processing mode, it is determined whether or not the number of detections of planar pad switch-on NHPi = N3 (step ST4-7). N3 is the number of times of continuous switch-on detection for turning on the hit determination flag in the crosstalk cancellation processing of the flat pad HPi. In this embodiment, N3 = 6. Thus, N3 may be set to the same number of times as N2, or may be set to a different number. When setting to a different number, it is desirable to set N3 to be a smaller number of times than N2.

  On the other hand, when the timer TimePiC is equal to or longer than the predetermined time Tsh (NO), the crosstalk cancellation processing mode is canceled and the normal detection processing mode is set. Also, when PiC = 1 is not satisfied in the previous step ST4-15 (NO), the normal detection processing mode is set. In this normal detection processing mode, it is determined whether or not the number of detections of planar pad switch-on NHPi = N1 (step ST4-18). N1 is the number of times of continuous switch-on detection for turning on the hit determination flag in the normal sound generation process for the flat pad HPi. In this embodiment, N1 = 2 times. In this case as well, if N1 <N2 and N3, the specific number of times N1 is not limited to the above, and may be any other number.

  If NHPi = N3 in step ST4-17 in the crosstalk cancellation processing mode (YES) or NHPi = N1 in step ST4-18 in the normal detection processing mode (YES), the plane pad hit flag ( Blow determination flag) HPiSW ← 1 (flag on) is set (step ST4-19). On the other hand, if NHPi = N3 is not satisfied in step ST4-17 (NO), or if NHPi = N1 is not satisfied in step ST4-18 (NO), the plane pad hitting flag HPiSW ← 0 (flag off) is set (step ST4-). 20).

  That is, from the start of the crosstalk cancellation processing mode for the flat pad HPi until the predetermined time Tsh elapses, the hit determination flag for the flat pad HPi is turned on when N3 = 6 or more continuous switch-on detections. When the normal detection processing mode is being executed, the hit determination flag for the flat pad HPi is turned on when N1 = 2 or more consecutive switch-on detections.

  Thereafter, the pad number i is counted up to i ← i + 1 (step ST4-21). Then, it is determined whether i> m (m = 6 in the present embodiment) (step ST4-22). If i> m is not satisfied (NO), the process returns to step ST4-2, and the next rim pad RPi is determined. And a hitting position detection process for a set of plane pads HPi (i = 2). In this way, the pad number i is incremented by one, and the processing for the six sets of planar pads HPi and rim pads RPi is sequentially performed. If i> m (YES), the process returns to step ST4-1.

  In the hit position detection process described above, as shown in FIG. 9, in the normal detection process mode (a), the hit detection flag is turned on when the number of consecutive switch-on detections for the flat pad HPi or rim pad RPi is N1 = 2. To do. In this normal detection processing mode, any deformation of the hitting surface V that causes the number of continuous switch-on detections to be two or more is detected, so only the switch-on based on the direct hit of the flat pad HPi or the rim pad RPi is detected. In addition, there is a possibility that switch-on (so-called crosstalk) due to propagation of deformation of the hitting surface V due to the hitting of the adjacent flat pad HPi or rim pad RPi may be detected. On the other hand, in the crosstalk cancellation processing mode of FIG. 9B, the hit determination flag is turned on when the number of continuous switch-on detections is N2 (or N3) = 6 times or more, which is larger than N1 = 2 times. Therefore, in the hit detection in the crosstalk cancel processing mode, it is difficult to detect the switch-on (so-called crosstalk) due to the propagation of the deformation of the hitting surface V due to the hitting of the adjacent flat pad HPi or the rim pad RPi. There is a high probability that only switch-on based on the direct hit of HPi or rim pad RPi can be detected.

  FIG. 10 is a flowchart showing a subroutine of the striking force detection process (step ST3-2). In the striking force detection process, the striking force detection process for the set of the planar pad HP1 and the rim pad RP1 is performed with the pad number i ← 1 (step ST5-1). In this striking force detection process, the pad number i = 1 to 6 is counted up in order, so that the striking force detection process for the pair of the plane pad HP6 and the rim pad RP6 is sequentially performed from the pair of the plane pad HP1 and the rim pad RP1. However, since the processing procedure for each group is common, in the following description, the process for each group is included and described as a pad number i.

  Here, it is determined whether or not the timer TimeADi has already been started (step ST5-2). This timer TimeADi is for measuring the elapsed time after the striking force PiLevel exceeds a predetermined striking force (first striking force) x1, and has six striking strokes corresponding to each planar pad HPi and rim pad RPi. It is counted separately for each sensor ADi. As a result, if the timer TimeADi has not been started (NO), it is determined whether or not the striking force PiLevel input to the striking sensor ADi is larger than the first striking force x1, that is, PiLevel> x1 (step). ST5-3). As a result, if PiLevel> x1 (YES), the timer TimeADi is newly started as TimeADi ← 0 (step ST5-4). That is, the first striking force x1 is a striking force serving as a reference for starting the count of the timer TimeADi. On the other hand, if the timer TimeADi has already been started in step ST5-2 (YES), it is determined whether or not the timer TimeADi has passed the wait time WT (ST5-5). The wait time WT here is a waiting time until the striking force PiLevel inputted to the striking sensor ADi is stabilized, and is a waiting time necessary for accurately detecting the presence / absence of striking and the striking force PiLevel.

  As a result, if the timer TimeADi has passed the wait time WT (YES), is the striking force PiLevel detected by the striking sensor ADi greater than a predetermined striking force (second striking force) x2 (x2 ≧ x1)? It is determined whether or not PiLevel> x2 (step ST5-6). The second striking force x2 is a striking force that serves as a reference for determining that there is a striking against the flat pad HPi or the rim pad RPi. As a result, if PiLevel> x2 (YES), the striking force detection flag Pikeyon ← 1 is set (step ST5-7), and the value of the striking force PiLevel is detected (step ST5-8). Then, the timer TimeADi is stopped (ST5-9). On the other hand, if PiLevel> x2 is not satisfied in step ST5-6 (NO), the timer TimeADi is stopped as it is without detecting the value of the striking force PiLevel (ST5-9). That is, if the striking force PiLevel does not reach the second striking force x2 even after the wait time WT has elapsed, it is determined that the striking force PiLevel is not a striking but a simple noise, and the striking force PiLevel is not detected.

  When PiLevel> x1 is not satisfied at step ST5-3 (NO), when timer TimeADi is started at step ST5-4, or when TimeADi is before the wait time WT has elapsed at step ST5-5 (NO), Alternatively, when the timer TimeADi is stopped in step ST5-9, the pad number i is counted up to i ← i + 1 (step ST5-10). Then, it is determined whether or not i> m (step ST5-11). If i> m is not satisfied (NO), the process returns to step ST5-2 and proceeds to the processing for the next set of rim pad RPi and plane pad HPi. . If i> m (YES), the process returns to step ST5-1.

  In the above description, after the wait time WT has elapsed (ST5-5), the value of the striking force PiLevel is detected (step ST5-8). In addition to this, before the wait time WT has elapsed. The peak value of the striking force PiLevel may be detected by monitoring the striking force PiLevel.

  FIG. 11 is a flowchart showing a subroutine of the sound generation control process (step ST2-3). In the sound generation control process, first, with the pad number i ← 1 (step ST6-1), the sound generation control process for the set of the plane pad HP1 and the rim pad RP1 is performed. In this sound generation control process as well, the hitting force detection process from the set of the plane pad HP1 and the rim pad RP1 to the set of the plane pad HP6 and the rim pad RP6 is sequentially performed by counting up from the pad number i = 1 to 6 in order. However, since the processing procedure for each group is common, in the following description, the process for each group is included and described as a pad number i.

  Here, first, it is determined whether or not the striking force detection flag Pikeyon = 1 (step ST6-2). As a result, if the striking force detection flag Pikeyon is not 1 (NO), the pad number i is counted up as it is (step ST6-3). Then, it is determined whether i> m (m = 6) or not (step ST6-4). If i> m is not satisfied (NO), the process returns to step ST6-2, and the next rim pad RPi and plane pad HPi are combined. Proceed to processing for. If i> m (YES), the process returns to step ST6-1.

  On the other hand, if the striking force detection flag Pikeyon = 1 (YES) in step ST6-2, the sound generation control process for the rim pad RPi is subsequently performed. For this, it is determined whether or not the rim pad hit flag RPiSW = 1 (step ST6-5). As a result, if the rim pad striking flag RPiSW = 1 (YES), a tone signal based on the timbre assigned to the rim pad RPi and the detected striking force PiLevel is generated (step ST6-6). Thereafter, the rim pad hit flag RPiSW ← 0 and the rim pad switch-on detection count NRPi ← 0 are reset (step ST6-7). Then, it is determined whether or not the striking force PiLevel detected by the striking sensor AD is greater than a predetermined threshold (first threshold) Rth, that is, PiLevel> Rth (step ST6-8). The threshold value Rth is a value of the striking force PiLevel that is a boundary for switching between the crosstalk cancellation process and the normal detection process for the rim pad RPi. In the present embodiment, the threshold value Rth is set to a striking force of 50% with respect to the maximum input of the striking sensor ADi. As a result, if PiLevel> Rth (YES), the crosstalk cancellation processing flag PiC = 1 is set (step ST6-9). That is, when the striking force PiLevel when a musical sound is generated for the rim pad RPi is higher than the threshold value Rth, a crosstalk canceling start command is issued. Further, the timer TimePiC ← 0 is set, and the timer TimePiC for measuring the elapsed time from the start of the crosstalk cancellation process is started (step ST6-10).

  On the other hand, if PiLevel> Rth is not satisfied in step ST6-8 (NO), or if timer TimePiC ← 0 is set in step ST6-10, it is subsequently determined whether or not the planar pad hit flag HPiSW = 1 (step ST6-8). ST6-11). As a result, if HPiSW = 1 (YES), a musical tone signal based on the tone color assigned to the plane pad HPi and the hitting force PiLevel detected previously is generated (step ST6-12). Also, the flat pad hitting flag HPiSW ← 0 and the flat pad switch-on detection count NHPi ← 0 are reset (step ST6-13). Thereafter, it is determined whether or not the striking force PiLevel detected by the striking sensor ADi is greater than a predetermined threshold (second threshold) Hth, that is, PiLevel> Hth (step ST6-14). The threshold value Hth is a value of the striking force PiLevel that is a boundary for switching between the crosstalk cancellation processing and the normal detection processing for the planar pad HPi. In the present embodiment, the threshold value Hth is set to 100% of the impact force with respect to the maximum input of the impact sensor ADi. As a result, if PiLevel> Hth (YES), the crosstalk cancellation processing flag PiC = 1 is set (step ST6-15). That is, when the striking force PiLevel when the musical sound is generated for the flat pad HPi is higher than the threshold value Hth, a command to start the crosstalk cancellation processing mode is issued. Further, the timer TimePiC ← 0 is set, and the timer TimePiC for counting the elapsed time from the start of the crosstalk cancellation process is started (step ST6-16).

  Thus, when the sound generation process for the rim pad RPi and the planar pad HPi is completed, the striking force detection flag Pikeyon ← 0 is set (step ST6-17). Thereafter, the pad number i is counted up to i ← i + 1 (step ST6-3). Then, it is determined whether i> m (step ST6-4). If i> m is not satisfied (NO), the process returns to step ST6-2, and the next set of rim pad RPi and plane pad HPi (i = 2). Proceed to processing for. If i> m (YES), the process returns to step ST6-1.

  As described above, in the electronic percussion instrument 1 of the present embodiment, the rim pad RPi and the planar pad HPi, and the contact sensors (striking position detecting means) SWri, which detect signals relating to the position of the batting operation on the rim pad RPi and the planar pad HPi. SWhi, a striking sensor (striking force detecting means) ADi for detecting a signal relating to striking force against the rim pad RPi and the flat pad HPi, and a detection with respect to the rim pad RPi and the flat pad HPi based on detection of the contact sensors SWri, SWhi and striking sensor ADi A main control unit 45 that performs sound generation processing according to the hitting operation, and the main control unit 45 keeps the switch-on (input signal) based on the hitting operation on the rim pad RPi and the flat pad HPi received by the contact sensors SWri and SWhi constant. Scan at intervals and place When the switch-on is detected continuously for the number of times (N1, N2, or N3), the hit determination flag for the corresponding rim pad RPi or flat pad HPi is turned on, and the rim pad RPi or flat pad HPi with the hit determination flag turned on is turned on. The sound generation processing for generating the corresponding musical sound based on the striking force PiLevel detected by the striking sensor AD is continuously performed.

  At that time, when the striking force PiLevel used in the previous sound generation process is smaller than the predetermined threshold Rth or Hth (NO in ST4-5 or ST4-15), the switch is continuously performed for a predetermined number of times (first number) N1. A normal detection process is performed to turn on the hit determination flag for the plane pad HPi or rim pad RPi corresponding to the detection of ON (ST4-8 or ST4-18), while the hitting force PiLevel used in the previous sound generation process is a predetermined value. When it is equal to or greater than the threshold value Rth or Hth (YES in ST4-5 or ST4-15), until the predetermined time Tsr or Tsh elapses (YES in ST4-6 and ST4-16), the predetermined number of times N1 The hit determination flag for the rim pad RPi or the flat pad HPi corresponding to the case where the switch-on is detected for a predetermined number of times N2 or N3 continuously The crosstalk cancel processing for turning on the signal is performed (ST4-7 or ST4-17).

  By doing in this way, until a predetermined time elapses after a strong blow that causes a switch-on (input signal) jump on the rim pad RPi or the planar pad HPi by the contact sensor SW, In the hit operation detection by the contact sensors SWri and SWhi, a crosstalk cancellation process can be performed instead of the normal detection process. As a result, even when the switch-on due to the jump is detected by the contact sensor SWri or SWhi corresponding to the rim pad RPi or the flat pad HPi that is not actually hit, it is erroneously determined that there is a hit on the rim pad RPi or the flat pad HPi. Can be suppressed. Accordingly, it is possible to effectively prevent the occurrence of erroneous sound generation of the adjacent planar pad HPi or rim pad RPi after a strong hit against one rim pad RPi or planar pad HPi.

  Further, in the so-called multipad electronic percussion instrument 1 having the rim pad RPi having a three-dimensional striking surface and the flat pad HPi having a planar striking surface as in the present embodiment, the rim pad RPi and the planar pad HPi Since the shape of the hitting surface V is different, the manner of hitting operation on them is often different. Specifically, as described above, the flat pad HPi is often struck from right above at the tip of a stick (not shown), but the rim pad RPi is struck from diagonally above at the belly part of the stick. Many. Therefore, when the striking surface V is made of a material having flexibility such as rubber as in the present embodiment, the striking force is particularly large when the rim pad RPi is struck compared to when the flat pad HPi is struck. Acts in an oblique direction, so that the deformation of the hitting surface V easily propagates over a wide range. Therefore, when the contact sensor SWhi of the adjacent flat pad HPi that is not actually hit by the hit of the rim pad RPi is turned on, it is easy to erroneously detect that the flat pad HPi is hit.

  On the other hand, in the electronic percussion instrument 1 of the present embodiment, when the hitting surface V of the flat pad HPi that is not actually hit is deformed, the corresponding contact sensor SWhi detects the switch-on due to the jumping. However, it is possible to suppress erroneous determination that there is an impact on the planar pad HPi by the crosstalk cancellation process. Accordingly, it is possible to effectively prevent erroneous detection that the adjacent flat pad HPi is hit by hitting the rim pad RPi. That is, according to the electronic percussion instrument 1 of the present embodiment, the crosstalk phenomenon peculiar to the electronic percussion instrument 1 having the planar pad HPi and the rim pad RPi that are adjacent to each other can be suppressed. Can be effectively prevented.

  In the electronic percussion instrument 1 of the present embodiment, as described in the above processing procedure, the normal detection processing mode and the crosstalk cancellation processing are performed depending on whether the rim pad RPi is hit or the flat pad HPi is hit. It is also possible to change the threshold of the striking force Pilevel for switching the mode (first threshold Rth, second threshold Hth). In this case, it is desirable to set the second threshold value Hth for the planar pad HPi to be larger than the first threshold value Rth for the rim pad RPi. In this way, since it is possible to perform the crosstalk canceling process with a relatively weak strike against the strike of the rim pad RPi, it is erroneously determined that the adjacent planar pad HPi is hit with respect to the strike operation of the rim pad RPi. Can be effectively suppressed. As a result, even if there is a strong hit that causes a jump of an input signal to another adjacent rim pad RPi and plane pad HPi for each of the plane pad HPi and rim pad RPi having different modes of hitting operation, It is possible to appropriately prevent the erroneous determination that the other pads RPi and HPi that have not been hit are hit.

  Further, in the electronic percussion instrument 1 of the present embodiment, as described in the above processing procedure, the crosstalk cancellation process is executed when there is a batting operation on the rim pad RPi and when there is a batting operation on the flat pad HPi. It is also possible to make the periods different (first period Tsr, second period Tsh). In this case, it is desirable to set the execution period (first period Tsr) for striking the rim pad RPi to be longer than the execution period (second period Tsh) for striking the flat pad HPi. . In this way, since the crosstalk cancellation process can be performed even when the rim pad RPi is hit with a relatively weak hit, it is erroneously determined that the adjacent flat pad HPi is hit with respect to the hit operation of the rim pad RPi. Judgment can be effectively suppressed.

  Further, in the electronic percussion instrument 1 of the present embodiment, the switch-on for turning on the hit determination flag in the crosstalk canceling process is performed when the hit operation is performed on the flat pad HPi and when the hit operation is performed on the rim pad RPi. It is also possible to vary the number of times of continuous detection (N2, N3). In this case, it is desirable to set the number of consecutive switch-on detections N3 for the strike of the rim pad RPi to be smaller than the number of continuous switch-on detections N2 for the strike of the flat pad HPi. In this way, the crosstalk canceling process can be performed for the hitting of the rim pad RPi even if the hitting is weaker than the hitting of the flat pad HPi. It is possible to effectively suppress the erroneous determination that there is a hit.

  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 case where the process for the rim pad RPi is performed first and the process for the plane pad HPi is performed later in the hitting position detection process shown in FIG. 8 and the sound generation control process shown in FIG. However, this order can be reversed.

  Further, the specific configuration of the performance operator provided in the electronic percussion instrument according to the present invention is a combination of the rim pad RPi having a three-dimensional striking surface and the flat pad HPi having a planar striking surface as shown in the above embodiment. However, the present invention is not limited to this, and other configurations can be employed. Therefore, instead of the rim pad RPi and the planar pad HPi, pads having other shapes may be provided. Further, in the present embodiment, the electronic percussion instrument 1 having a configuration in which a plurality of pads RPi and HPi are arranged adjacent to each other is shown, but in addition to this, a normal electronic drum in which each pad is independently provided In addition, the present invention is applicable.

  In addition, the number of rim pads RPi and planar pads HPi shown in the above embodiment is an example, and other numbers may be used. Therefore, the electronic percussion instrument to which the present invention is applied is not limited to the electronic percussion instrument provided with the performance operator in the form shown in the above embodiment, and may be an electronic percussion instrument provided with a performance operator in another form. As an example, a drum configuration is provided by arranging a circular annular rim portion (rim pad) around a circular flat pad (planar pad) as described in Patent Document 1 (Japanese Patent Laid-Open No. 2003-108140). An electronic percussion instrument provided with a performance operator imitating

DESCRIPTION OF SYMBOLS 1 Electronic percussion instrument 10 Performance operator 30 Setting operation part 45 Main control part (control means)
45a Impact detection processing unit 45b Sound generation control processing unit 46 Timer AD (ADi) Impact sensor (striking force detection means)
HPi plane pad HPiSW plane pad hit flag Hth threshold (second threshold)
N1 Number of continuous detections N2 Number of continuous detections NHPi Number of planar pad switch-on detections NRPi Number of rim pad switch-on detections PiC Crosstalk cancellation processing flag Pikeyon Strike force detection flag PiLevel Strike force RPi Rim pad (three-dimensional pad)
RPiSW Rim pad hit flag Rth threshold (first threshold)
SW (SWri, SWhi) Contact sensor (hitting position detecting means)
TimeADi timer
TimePiC Timer Tsr Predetermined time (first period)
Tsh Predetermined time (second period)
V Strike surface WT Weight time x1 Strike force x2 Strike force

Claims (5)

A plurality of performance operators having a striking surface;
A striking position detecting means for detecting a signal related to a striking operation position with respect to the performance operator;
A striking force detection means for detecting a signal relating to striking force according to the striking operation on the performance operator,
Control means for performing sound generation processing in accordance with the batting operation on the performance operator based on the detection by the batting position detecting means and the batting force detecting means;
With
The control means includes
The input signal received by the hitting position detecting means is scanned at regular intervals, and when the input signal is detected continuously for a predetermined number of times, the hit determination flag for the performance operator is turned on, and the hit determination flag is turned on. The sound generation process for generating the musical sound corresponding to the performance operator performed based on the striking force detected by the striking force detection means is continuously performed,
When the hitting force used in the previous sound generation process is smaller than a predetermined threshold value, the hit determination flag for the performance operator is normally turned on when the input signal is detected for the first predetermined number of times. While performing the detection process
When the striking force used in the previous sound generation process is equal to or greater than the predetermined threshold, the second number of times that is greater than the first number, which is the predetermined number of times, continues until the predetermined period thereafter. An electronic percussion instrument that performs crosstalk cancellation processing for turning on a hit determination flag for the performance operator when the input signal is detected. The performance operator includes a three-dimensional pad having at least one set of three-dimensional striking surfaces and a flat pad having a planar striking surface arranged adjacent to each other,
The hitting position detecting means is provided separately for detecting a hitting operation for the three-dimensional pad and the flat pad,
2. The electronic percussion instrument according to claim 1, wherein the hitting force detecting means is provided in common for detecting the hitting force of both the pair of three-dimensional pads and flat pads. The control means includes
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad, the crosstalk cancellation process is performed when the striking force used in the previous sound generation process is equal to or greater than the first threshold value,
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the plane pad, the striking force used in the previous sound generation process is equal to or higher than a second threshold value different from the first threshold value. The electronic percussion instrument according to claim 2, wherein crosstalk cancellation processing is performed. The control means includes
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad, if the striking force used in the previous sound generation process is greater than a predetermined threshold, then the first period elapses. While performing the crosstalk cancellation process,
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the plane pad, if the striking force used in the previous sound generation process is greater than a predetermined threshold, then the first period is different from the first period. 3. The electronic percussion instrument according to claim 2, wherein the crosstalk canceling process is performed until a predetermined period of 2 elapses. The control means includes
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the three-dimensional pad, in the crosstalk canceling process, an input signal to the striking position detecting means is continuously a predetermined number of times that is the second number. While turning on the hit determination flag for the three-dimensional pad when detected,
When the musical sound generated in the previous sound generation process is a musical sound corresponding to the flat pad, in the crosstalk canceling process, the input signal to the hitting position detecting means continues for another predetermined number of times different from the predetermined number of times. The electronic percussion instrument according to claim 2, wherein a hit determination flag for the flat pad is turned on when detected.

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