JP3183385B2 - Performance information input device for electronic musical instruments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance information input device for inputting performance information to, for example, an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, in a keyboard-type electronic musical instrument, a keyboard is mainly used for inputting pitch information. Focusing only on the function of designating the pitch, each key of this keyboard is merely a switch that is turned on / off in response to key depression / key release. Thus, the keys are, for example, C _i , C _i ♯, D _i ,
.. (The subscript i represents an octave), it is only possible to specify 12 pitches in a plurality of octaves. Hereinafter, the 12 pitches of each octave are referred to as “specific pitches”.

Therefore, when specifying a pitch other than the pitch that can be specified on the keyboard, such as pitch bend, it is necessary to specify the pitch using, for example, a bender wheel provided separately from the keyboard. In other words, when specifying a pitch other than the specific pitch, the player must operate two operators, the keyboard and the bender wheel, and a sophisticated performance technique is required.

[0004] For example, to apply vibrato, it is necessary to slightly fluctuate the pitch, but the pitch cannot be fluctuated only by the keyboard. In such a case, for example, the bender wheel is slightly rotated back and forth to simulate the vibrato function. However, even if you try to apply vibrato by operating the bender wheel, it is extremely difficult to exert subtle musical effects like vibrato generated by natural instruments, because the method of applying vibrato is different from that of natural instruments. Was.

Further, there is a case where, for example, it is desired to apply, for example, pitch bend to a sound being generated and, for example, to change the volume.
In such a case, it is necessary to simultaneously operate the keyboard, the bender wheel, and the volume controller, and it has been difficult to play with a normal electronic musical instrument.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to input performance information for generating a wide and subtle sound by a simple operation. It is an object of the present invention to provide a performance information input device for an electronic musical instrument capable of performing the following.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a performance information input device for inputting performance information to an electronic musical instrument, comprising: input means; The apparatus comprises a detecting means for detecting a position, and performance information generating means for generating performance information in accordance with a detection result of the detecting means.

[0008] The performance information input by the present performance information input device is information for determining various elements of sound, such as pitch, volume, tone, and effect. As the input means, for example, a touch panel capable of continuously inputting information by touching a finger can be used. The present performance information input device detects the presence / absence and contact position of a finger on the input means, and generates performance information based on the detection results.

According to this performance information input device, the presence / absence of contact of the finger with the input means can be associated with key press / key release, and the contact position can be associated with the pitch. Therefore, it is possible to input not only a stepwise specific pitch like a keyboard but also a pitch between a predetermined specific pitch and another specific pitch, for example, a pitch that occurs when pitch bend is applied. it can.

The detecting means in the performance information input device outputs a contact position with respect to the input means as coordinate values in a first direction and a second direction orthogonal to each other. , Generating performance information (hereinafter referred to as "pitch information") for designating a pitch based on the coordinate value in the first direction from the first means, and calculating the pitch based on the coordinate value in the second direction from the detecting means. Performance information other than the performance information for designation (hereinafter referred to as “non-pitch information”) can be configured.

When a touch panel is used as the input means, the first direction corresponds to the X-axis direction (left-right direction) and the second direction also corresponds to the Y-axis direction (vertical direction) when the touch panel is viewed from above. be able to. In this case, the detection unit outputs the presence / absence of the contact and the coordinate value in the X-axis direction and the coordinate value in the Y-axis direction of the contact position. The performance information generating means generates pitch information based on coordinate values in the X-axis direction. Therefore, the player can input performance information for generating not only the specific pitch but also other pitches by moving the finger left and right on the touch panel.

The performance information generating means generates non-pitch information, for example, volume information, timbre information, etc., based on the coordinate values in the Y-axis direction. Therefore, the player can input performance information for generating, for example, a desired volume or tone by moving his finger up and down on the touch panel.

According to this performance information input device, the player changes the contact position on the touch panel, thereby simultaneously changing a plurality of sound elements such as pitch and volume or pitch and timbre with one touch. be able to. In addition, the player can perform a performance such as changing the volume while applying pitch bend by moving the player in a diagonal direction while touching the finger on the touch panel. Alternatively, by moving the touch panel in a diagonal direction while keeping a finger in contact with the touch panel, it is possible to perform a pitch bend, for example, by controlling a cutoff frequency of a filter to change a tone.

Note that the first direction may correspond to the Y-axis direction (vertical direction) and the second direction may also correspond to the X-axis direction (left-right direction) when the touch panel is viewed from above. In this case, the pitch is changed by moving the finger up and down on the touch panel, and the volume, tone, and the like are changed by moving the finger in the left and right directions. Also,
The X axis and the Y axis need not necessarily be strictly orthogonal.

Further, a plurality of performance information can be generated based on the coordinate values in the X-axis direction and the Y-axis direction. For example, pitch information based on coordinate values in the X-axis direction,
Non-pitch information (for example, any one of volume, left / right localization, front / rear localization, cut-off frequency of filter, resonance, etc.)
). Similarly, one piece of non-pitch information (for example, any one of modulation depth or speed, waveform volume ratio, and the like) and another piece of non-pitch information (for example, modulation depth or speed) are based on the coordinate value in the Y-axis direction. , Or any one of the waveform volume ratio and the like). In addition, the maximum value and the minimum value of the performance information can be set individually. For example, the pitch can be set to the full range, and the left and right localization can be set to 30 ° on the L side and 60 ° on the R side.

Further, the detecting means in the present performance information input device outputs a contact position with respect to the input means as coordinate values in a first direction, a second direction, and a third direction, respectively, which are orthogonal to each other. Generates pitch information based on coordinate values in the first direction from the detecting means, and generates non-pitch information based on respective coordinate values in the second direction and the third direction from the detecting means. Can be configured.

When the touch panel is used as the input means, the first direction is in the X-axis direction (left-right direction), the second direction is in the Y-axis direction (vertical direction) when the touch panel is viewed from above, and Third in the Z-axis direction (pressing direction)
The directions can correspond to each other. In this case, the detecting means outputs the coordinate value of the contact position in the X-axis direction, the coordinate value in the Y-axis direction, and the coordinate value in the Z-axis direction. The performance information generating means generates pitch information based on coordinate values in the X-axis direction.
The performance information generating means generates non-pitch information based on, for example, coordinate values in the Y-axis direction and the Z-axis direction.

For example, the performance information generating means can be configured to generate performance information for designating the volume based on the coordinate values in the Y-axis direction and the tone color based on the coordinate values in the Z-axis direction. In this case, by changing the contact position on the touch panel and the pressing force on the touch panel, the player can simultaneously change a plurality of sound elements such as pitch, volume, and timbre with one touch. Also,
By moving the player in a diagonal direction while touching the touch panel with his / her finger, it is possible to perform a performance in which the volume is changed while pitch bend is applied and the tone is changed by controlling, for example, a cutoff frequency of a filter.

The correspondence between the first direction, the second direction, and the third direction and the X-axis direction, the Y-axis direction, and the Z-axis direction is not limited to the above, and can be arbitrarily set. Also, X
The axes, the Y axis, and the Z axis need not necessarily be strictly orthogonal. Further, a plurality of pieces of performance information can be assigned to each of the X axis, the Y axis, and the Z axis, as described above.

In the present performance information input device, the performance information generating means may be configured to perform the following operations when the input means is touched or when the contact position is moved while the input means is being touched. The pitch information can be generated by directly converting the coordinate value in the first direction from the detection means. Further, when the input means is touched or when the touch position is moved while the input means is being touched, the performance information generating means is configured to output the performance information in the second direction from the detecting means. Non-pitch information can be generated by directly converting coordinate values and / or coordinate values in the third direction.

According to this configuration, since the coordinate value of the position touching the input means is used directly to generate performance information, the pitch, volume, tone, and the like can be intuitively specified. There is.

In the present performance information input device, the performance information generating means may determine a specific pitch based on a coordinate value in the first direction from the detecting means when the input means is contacted. And generating performance information for designating a pitch in accordance with an amount of movement of the contact position when the contact position is moved while the input means is being touched. Can be configured. Further, the performance information generating means, when contact is made with the input means, specific non-pitch information based on the coordinate value in the second direction and / or the coordinate value in the third direction from the detecting means. Is generated, and when the contact position is moved while the input means is kept in contact, non-performance information is generated according to the amount of movement of the contact position.

In this case, for example, a picture of a keyboard is drawn on the touch panel as the input means, and the performance information generating means determines that the first contact position is within the range of the picture of the predetermined key.
Performance information for designating a specific pitch corresponding to the key may be generated, and thereafter, performance information may be generated such that the pitch changes in accordance with the amount of movement of the contact position. Similarly, when the input means is first touched, the performance information generating means generates predetermined non-pitch information, and thereafter, based on the amount of movement of the contact position (for example, volume value, filter cutoff) It can be configured to generate non-pitch information in which the coefficient value indicating the frequency changes).

According to this configuration, the specific pitch information is generated based on the coordinate value of the position where the touch panel is first touched, and thereafter, by moving the finger on the input means, the sound pitch is changed according to the amount of movement. Since the performance information whose height changes is generated, pitch bend can be easily simulated on the input means. Similarly, predetermined non-pitch information is generated based on the coordinate value of the position where the input means first touched, and thereafter,
By moving the finger on the input means, non-pitch information whose value changes in accordance with the amount of movement is generated, so that the volume and tone can be easily changed on the input means.

[0025] The present performance information input apparatus further comprises a transmitting means, and the transmitting means can be configured to transmit the performance information generated by the performance information generating means to the outside. According to this configuration, the present performance information input device allows other electronic musical instruments,
It becomes possible to control a sound source module, a sequencer, a computer, and the like.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a performance information input device according to the present invention will be described below in detail with reference to the drawings.
In the following, a performance information input device incorporated in an electronic musical instrument will be described. However, the present performance information input device may be configured independently. In the following embodiment, it is assumed that two pieces of performance information are assigned to each of the X axis, the Y axis, and the Z axis.

FIG. 1 is an external view of an electronic musical instrument to which the present performance information input device is applied, which is partially cut away and viewed from above.
In the figure, 13 is a touch panel, 130 is a picture of a keyboard,
14 is an operation panel, 18 is an external input terminal, and 19 is an external output terminal.

The touch panel 13 corresponds to the input means of the present invention. The touch panel 13 outputs coordinate values in the X-axis direction (horizontal direction in the figure), coordinate values in the Y-axis direction (vertical direction in the figure), and the coordinate values in the Z-axis direction (front-back direction in the figure) by being touched by a finger, for example. I do. As the touch panel 13, well-known various types of touch panels can be used. For example, an analog touch panel that can detect the presence / absence of a contact, a contact position, and a pressing force based on a change in resistance or capacitance, a presence / absence of a contact, a contact position, and a pressing force based on a change in a small switch arranged in a mesh shape. A digital touch panel or the like for detecting pressure can be used.

The input means of the present invention is not limited to a touch panel.
Any device that can detect the coordinate value in the axial direction and the coordinate value (displacement) in the Z-axis direction can be used. In the case of an application that does not use the coordinate values in the Z-axis direction, the input unit does not need to be able to detect the coordinate values (displacement) in the Z-axis direction. Further, the X axis, the Y axis, and the Z axis
The axes do not necessarily have to be strictly perpendicular to each other. For example, it is sufficient that the axes have a precision enough to specify the position where the finger is in contact and the displacement of the contact position in the Z-axis direction.

The picture 130 of the keyboard can be drawn directly on the touch panel 13. The picture 130 of the keyboard can be composed of, for example, a plastic film on which a plurality of keys are drawn. In this case, the plastics film is fixed on the touch panel 13. FIG.
Then, only a part of the picture 130 of the keyboard is described,
Actually, it is provided over the entire surface of the touch panel 13.

The operation panel 14 has a tone control operator group 1
40, a display 141 and a tone selection switch 142 are provided. The tone color control operator group 140 includes a plurality of switches for creating tone colors. Display 14
Reference numeral 2 includes, for example, an LED or an LCD and a group of switches for controlling display contents. The timbre selection switch 142 includes a plurality of switches. A tone created by the operator using the tone control operator group 140 can be assigned to each switch of the tone selection switch 142. In a state where no timbre is created, a default timbre is assigned to each switch. By pressing any one of the tone color selection switches 142, the player can select a desired tone color with one touch.

The external input terminal 18 is a terminal for inputting performance information from an external device. As an external device,
Other electronic musical instruments, sequencers, computers, and other devices can be used. The performance information received at the external input terminal 18 is taken into the electronic musical instrument.

The external output terminal 19 is a terminal for outputting performance information generated by the electronic musical instrument to the outside. For example, a sound source is connected to the external output terminal 19. Thereby, a musical tone can be generated by an external sound source based on the performance information output from the electronic musical instrument.

Next, the electrical configuration of an electronic musical instrument to which the present performance information input device is applied will be described in detail with reference to the block diagram of FIG.

In FIG. 2, a central processing unit (hereinafter referred to as “CP
U ". ) 10 is a read only memory (hereinafter referred to as “R
OM ". ) The control program stored in 11 is
Each part of the electronic musical instrument is controlled by sequentially reading and executing it via the system bus 30. This CPU 10
Corresponds to the detecting means and the performance information generating means of the present invention. The ROM 11 stores various fixed data in addition to a control program for operating the CPU 10.

A random access memory (hereinafter "RAM")
That. 12) are provided with various registers, flags, work areas, and the like for controlling the electronic musical instrument. The main ones used in this embodiment are shown below.

Event Flag This is a 1-byte flag that stores an event generated on the touch panel 13 or the operation panel 14 in a bit-wise manner. The events stored in the event flag include touch-on, touch-off, movement, and switch events. The touch-on event occurs when the touch panel 13 is touched. The touch-off event occurs when a finger is released from the touch panel 13. The movement event occurs when the contact position is moved while the finger is in contact with the touch panel 13. The switch event occurs when a switch on the operation panel 14 is operated. Touch flag A flag for storing the presence or absence of a touch on the touch panel 13. X register, Y register, Z register These registers store the coordinate values in the X axis direction, the Y axis direction, and the Z axis direction. Movement X flag, movement Y flag, movement Z flag These flags store whether or not each coordinate value in the X-axis direction, the Y-axis direction, and the Z-axis direction has changed. Mode flag This flag stores whether the coordinate value from the touch panel 13 is used as it is as an absolute value or as a relative value from the first contact position. Reference pitch value register This register stores the current pitch value. X reference coordinate value register, Y reference coordinate value register This register stores the current coordinate values in the X axis direction and the Y axis direction.

Registers, flags, work areas, and the like provided in the RAM 12 other than those described above will be described below as necessary.

As described above, the touch panel 13 outputs the coordinate values in the X-axis direction, the Y-axis direction, and the Z-axis direction of the position touched by the finger. The CPU 10 detects the presence / absence of a contact, the contact position, the pressing force of the contact, the presence / absence of a movement of the contact position, and the like based on the coordinate values from the touch panel 13, and performs a process of generating performance information according to the detection result.

As described above, the operation panel 14 is provided with various switches for operating the electronic musical instrument. The CPU 10 inputs data from each switch provided on the operation panel 14 and performs a required process according to the data.

The sound source 15 generates a tone signal in response to an instruction from the CPU 10. The tone signal generated by the sound source 15 is supplied to an audio system 16. The audio system 16 includes an amplifier, a speaker, and the like, and converts a tone signal into an acoustic signal. This audio system 1
6, the musical tone played by the player is emitted.

The communication interface 17 corresponds to the transmitting means of the present invention. The communication interface 17 receives the serial data input from the external input terminal 18,
Convert to parallel data. The CPU fetches the performance information converted into the parallel data via the system bus 30 and writes the performance information into a reception buffer provided in a predetermined area of the RAM 12.

The CPU reads performance information from a transmission buffer provided in a predetermined area of the RAM 12 and sends the performance information to the communication interface 17 via the system bus 30.
The communication interface 17 converts the performance information received from the CPU 10 into serial data,
From outside.

As the communication interface 17, for example, a MIDI interface can be used. In this case, the external input terminal 18 receives the MIDI message, and the external output terminal 19 transmits the MIDI message. In the following description, as the communication interface 17,
The description will be made assuming that the MIDI interface is used. Note that the communication interface is not limited to the MIDI interface, and various interfaces such as an RS232C, a SCSI interface, and a model-specific interface can be used.

The electronic musical instrument is provided with a timer (not shown). This timer interrupts the CPU 10 at predetermined time intervals. This CPU 10
The touch panel 13 and the operation panel 1 are synchronized with the interrupt.
Scan 4.

Next, the operation of the electronic musical instrument to which the present performance information input device is applied will be described in detail with reference to the flowcharts shown in FIGS. The processing shown in each flowchart is performed by the CPU 10 according to a control program stored in the ROM 11. In the following, a description will be given mainly of a portion related to the present performance information input device.

(1) Main Processing When the power is turned on, first, an initialization processing is performed (step S10). In this initialization process, the internal hardware of the CPU 10 is initialized, and an initial value is set in each area of the RAM 12.

Next, event processing is performed (step S11). In this event processing, it is checked whether or not any of the event flags is set, and if it is determined that there is a set flag, processing corresponding to the flag is performed. Details of this event processing will be described later.

Next, a MIDI receiving process is performed (step S12). In this MIDI receiving process, the MID received at the external input terminal 18 of the communication interface 17
A process of converting the I message into an event is performed. Therefore, the electronic musical instrument can be operated from an external device.

When the above processing is completed, the process returns to step S11, and the above-described operation is repeatedly executed. This allows
Processing corresponding to contact and separation with the touch panel 13 and switch operation of the operation panel 14 is performed, and various functions as an electronic musical instrument are exhibited.

Although not shown, a serial communication interrupt process is performed in parallel with the main process. That is, the communication interface 17 interrupts the CPU 10 upon receiving an external MIDI message. The CPU 10 receives the received data from the communication interface 17 in response to the interrupt, and writes the received data into the reception buffer. Further, the communication interface 17 has one M
When the process of transmitting the IDI message to the outside is completed,
Interrupt the CPU 10. CPU 10
In response to this interrupt, it is checked whether there is data to be transmitted in the transmission buffer. When it is determined that there is data to be transmitted in the transmission buffer,
This is sent to the communication interface 17. The communication interface 17 converts the data received from the CPU 10 into serial data and transmits the serial data from the external output terminal 19 to the outside.

(2) Timer Interrupt Processing Next, the timer interrupt processing will be described with reference to the flowchart of FIG. The timer interrupt processing routine is started at regular intervals according to an interrupt signal from the timer. In this timer interruption process, the touch panel 13 and the operation panel 14 are scanned. Therefore, scanning of the touch panel 13 and the operation panel 14 is performed in parallel with the main processing.

When receiving the interrupt, the CPU 10 first checks whether or not the touch panel 13 is turned on (step S20). That is, the CPU 10 sends a scan signal to the touch panel 13 and the operation panel 14. In response to this scan signal, the touch panel 13 displays an X-axis direction indicating a contact position if a contact is made,
Each coordinate value in the Y-axis direction and the Z-axis direction is output. On the other hand, if no contact is made, zero is output. CPU10
Depends on whether or not each of these coordinate values is output.
It is determined whether or not there is a contact with 3.

Here, when it is determined that the touch panel 13 is turned on, each coordinate value in the X-axis direction, the Y-axis direction, and the Z-axis direction is fetched (step S21). Then, it is checked whether the touch flag is turned off (step S22). Here, when it is determined that the touch flag is turned off, it is recognized that there was no contact with the touch panel 13 at the time of the previous scan, but contact with the touch panel 13 was generated by the current scan, and the touch flag was turned on. (Step S23). Then, the touch-on flag is set (step S24). As a result, event processing for touch-on is performed (details will be described later).
Thereafter, the flow branches to step S34.

If it is determined in step S22 that the touch flag is not turned off, it is recognized that there is a touch on the touch panel 13 during the previous scan and that there is a touch on the touch panel 13 even in the current scan.
Next, it is checked whether or not the contact position has been moved (steps S25 to S30). That is, first, it is checked whether or not the previously acquired coordinate value in the X-axis direction (old X) is different from the currently acquired coordinate value in the X-axis direction (X) (step S25). When it is determined that they are different, it is determined that the contact position in the X-axis direction has been moved, and the movement X flag is turned on (step S26).
Otherwise, step S26 is skipped.

Next, it is checked whether or not the previously acquired coordinate value in the Y-axis direction (old Y) is different from the currently acquired coordinate value in the Y-axis direction (Y) (step S27). If it is determined that they are different, it is determined that the contact position in the Y-axis direction has been moved, and the movement Y flag is turned on (step S28). Otherwise, step S28 is skipped. Next, the last Z
It is checked whether or not the axial coordinate value (old Z) is different from the currently acquired coordinate value (Z) in the Z-axis direction (step S29). When it is determined that they are different, Z
It is determined that the pressing force in the axial direction has changed, and the movement Z flag is turned on (step S30). Otherwise, step S30 is skipped. Thereafter, the flow branches to step S34.

If it is determined in step S20 that the touch panel 13 is not turned on, it is checked whether the touch flag is turned on (step S20).
31). Here, if it is determined that the touch flag is on, the touch panel 1 during the previous scan is determined.
It was recognized that there was no contact with the touch panel 13 by this scan,
The touch flag is turned off (step S32). Then, the touch-off flag is set (step S3)
3). As a result, event processing for touch-off is performed (details will be described later). Thereafter, the process proceeds to step S34. If it is determined in step S31 that the touch flag is not on, it is recognized that the touch panel 13 has not been touched last time and this time, and steps S32 and S33 are skipped.

In step S34, the above-mentioned step S21
The respective coordinate values in the X-axis direction, the Y-axis direction, and the Z-axis direction, which are taken in at, are stored in the X, Y, and Z registers, respectively. The contents of these X, Y and Z registers are referred to in the next timer interrupt processing.

The above is the processing for the touch panel. When the processing for these touch panels is completed, the operation panel processing is performed (step S35).
In this operation panel process, it is checked whether or not each switch on the operation panel 14 has been operated. When it is determined that an operation has been performed, the fact is stored in a bit corresponding to the switch of the event flag. Thereafter, the process returns from the timer interrupt processing routine and returns to the interrupted position.

(3) Event Processing Next, the details of the event processing performed in step S11 of the main processing routine will be described with reference to the flowchart shown in FIG.

In the event processing, first, it is checked whether or not there is a touch-on event (step S4).
0). This is performed by referring to the event flag described above. When it is determined that there is a touch-on event, a touch-on process is performed (step S41). Details of this touch-on process are shown in the flowchart of FIG.

(3-1) Touch-On Process In the touch-on process, first, a pitch value calculation process is performed based on the coordinate values in the X (Y) axis direction (step S60).
Here, (Y) indicates that the pitch value may be assigned to not only the X axis but also the Y axis. The same applies to the following. The details of this pitch value calculation processing are shown in the flowchart of FIG.

(3-1-1) Pitch Value Calculation Processing In the pitch value calculation processing, first, it is checked whether or not the mode is the absolute value mode (step S90). This is RAM1
This is performed by checking the mode flag of No. 2. If it is determined that the mode is the absolute value mode, the coordinate value in the X-axis direction is converted into a pitch value (step S91). Thereafter, the flow branches to step S97.

On the other hand, when it is determined in step S90 that the mode is not the absolute value mode, it is checked whether the event type is ON (step S92). And
When it is determined that the event type is ON, that is, that the process for the event of the touch-on is currently being performed, the key number is calculated from the coordinate values in the X-axis direction and the Y-axis direction (step S93). That is, the key number of the key to which the contact position specified by each coordinate value in the X-axis direction and the Y-axis direction belongs is obtained. Next, the calculated key number is converted into a pitch value (step S94). Thus, when a touch-on event occurs, in other words, when the touch panel 13 is first touched, the pitch value of the specific pitch can be set regardless of the touch of any one key drawn on the picture 130 of the keyboard. Is obtained.

Next, the pitch value obtained in step S94 is stored in the reference pitch value register (step S9).
5) Then, the coordinate values in the X-axis direction and the Y-axis direction are stored in the X reference coordinate value register and the Y reference coordinate value register, respectively. The contents of the reference pitch value register and the reference coordinate value register are used for a movement event process described later. Thereafter, the process proceeds to step S97.

If it is determined in step S92 that the event type is not ON, that is, that the processing for the event of the current movement is being performed, the coordinate value in the X-axis direction and X
A difference pitch value obtained by taking a difference from the reference coordinate value in the axial direction is obtained (step S98). In other words, the difference of the pitch value from the first contact position is obtained. Next, the difference pitch value is added to the reference pitch value, and a final pitch value is obtained (step S99). Thereafter, the flow branches to step S97.

In step S97, the final pitch value obtained in each of the above processes is stored in the current data area.
The content of this current data area becomes the final pitch value calculated in the event processing, and the note-on processing (step S6)
In 6), it is used for pronunciation. Thereafter, the process returns from the pitch value calculation processing routine and returns to the touch-on processing routine.

Next, in the touch-on processing routine, X
The process of calculating the X parameter from the axial coordinate value is performed (step S61). The parameter value calculation processing in each axis direction is performed by a parameter value calculation processing routine shown in FIG.

(3-1-2) Parameter Value Calculation Process In the parameter value calculation process, first, parameter information is input (step S80). Here, the parameter information is data that defines performance information assigned to each axis, and includes, for example, a type, a range, a bit width, and an input mode. Next, it is checked whether or not the mode is the absolute value mode (step S81). Here, if it is determined that the mode is the absolute value mode, the coordinate values are directly converted into parameter values (step S82). Thereafter, the flow branches to step S86.

If it is determined in step S81 that the mode is not the absolute value mode, then it is checked whether or not the event type is ON (step S83). And
If it is determined that the event type is ON, that is, the process for the touch-on event is currently being performed, the coordinate value is stored in the reference coordinate value register (step S8).
4). The contents of the reference coordinate value register are used for a movement event process described later. Next, a default value is set as a parameter value (step S85).
Accordingly, when a touch-on event occurs, in other words, when the touch panel 13 first touches,
Performance information will be generated using default values as parameter values. Thereafter, the process proceeds to step S86.

If it is determined in step S83 that the event type is not ON, that is, that the processing for the current movement event is being performed, a difference parameter value is obtained based on the difference between the coordinate value and the reference coordinate value. (Step S87). In other words, the difference of the parameter value from the first contact position is obtained. Next, the difference parameter value is added to the default value, and a final parameter value is obtained (step S88). Then, step S
Branch to 86.

In step S86, the final parameter value obtained in each of the above processes is stored in the current data area. The content of the current data area becomes the final performance information calculated in the event processing, and is used for sound generation in the note-on processing (step S66). afterwards,
The routine returns from the parameter value calculation processing routine and returns to the touch-on processing routine.

Next, in the touch-on processing routine,
A process of calculating the Y parameter 1 from the axial coordinate values is performed (step S62). The parameter value calculation process
This is performed in the above-described parameter value calculation processing routine of FIG. The same applies to the following. Hereinafter, Y parameter 2 is calculated from the coordinate values in the Y-axis direction (step S63),
The Z parameter 1 is calculated from the coordinate values in the Z-axis direction (step S64), and the Z parameter 2 is calculated from the coordinate values in the Z-axis direction (step S65). When the above-described calculation processing of each parameter is completed, the current data area is in a state where performance information including parameters necessary for sound generation is stored.

Next, note-on processing is performed (step S66). In this note-on process, the data stored in the current data area is sent to the sound source 15. As a result, the sound source 15 starts generating a tone signal based on the performance information input on the touch panel 13. The tone signal is supplied to the sound system 16 to emit a tone. Thereafter, the process returns from the touch-on processing routine and returns to the event processing routine.

Next, in the event processing routine, the touch-on flag is cleared (step S42). Thus, the touch-on process is not performed until the next touch-on event occurs. afterwards,
The process returns from the event processing routine and returns to the main processing routine.

If it is determined in step S40 that the event is not a touch-on event, then it is checked whether the event is a touch-off event (step S43).
This is performed by referring to the event flag described above. If it is determined that there is a touch-off event, a touch-off process is performed (step S).
44). Details of this touch-off processing are shown in the flowchart of FIG.

(3-2) Touch-off processing In the touch-off processing, note-off processing is performed (step S67). That is, the CPU 10 sends predetermined data to the sound source 15. As a result, the envelope of the tone being sounded is attenuated, and the sound is muted. Thereafter, the process returns from the note-off processing routine and returns to the event processing routine.

In the event processing routine, the touch-off flag is cleared (step S45). Thus, the touch-off process is not performed until the next touch-off event occurs. afterwards,
The process returns from the event processing routine and returns to the main processing routine.

If it is determined in step S43 that the event is not a touch-off event, then it is checked whether or not the event is a movement event (step S46). This is performed by referring to the above-described movement flag. When it is determined that there is a movement event, a movement process is performed (step S47). Details of this movement processing are shown in the flowchart of FIG.

(3-3) Movement Processing In the movement processing, first, it is checked whether or not the movement X flag is on (step S70). Here, when it is determined that the movement X flag is on, a pitch value calculation process is performed based on the coordinate values in the X (Y) axis direction (step S71). This pitch value calculation processing is the same as the processing in step S60 of the touch-on processing routine. Then X
A process of calculating the X parameter from the coordinate values in the axial direction is performed (Step S72). This parameter value calculation processing is the same as the processing in step S61 of the touch-on processing routine. Thereafter, the process returns from the movement processing routine and returns to the event processing routine.

If it is determined in step S70 that the movement X flag is not on, then it is checked whether the movement Y flag is on (step S73). Here, when it is determined that the movement Y flag is on,
Processing for calculating Y parameter 1 from the coordinate values in the Y-axis direction is performed (step S74). This parameter value calculation processing is the same as the processing in step S62 of the touch-on processing routine. Next, a process of calculating the Y parameter 2 from the coordinate values in the Y-axis direction is performed (Step S75).
This parameter value calculation processing is the same as the processing in step S63 of the touch-on processing routine. Thereafter, the process returns from the movement processing routine and returns to the event processing routine.

If it is determined in step S73 that the movement Y flag is not on, then it is checked whether the movement Z flag is on (step S76). Here, when it is determined that the movement Z flag is on,
Processing for calculating the Z parameter 1 from the coordinate values in the Z-axis direction is performed (step S77). This parameter value calculation processing is the same as the processing in step S64 of the touch-on processing routine. Next, a process of calculating the Z parameter 2 from the coordinate values in the Z-axis direction is performed (Step S78).
This parameter value calculation processing is the same as the processing in step S65 of the touch-on processing routine. Thereafter, the process returns from the movement processing routine and returns to the event processing routine.

By the above-described movement processing, data for designating a new pitch, volume, tone, effect, and the like is stored in the current data area and used for sound generation.

In the event processing routine, the movement flag is cleared (step S48). As a result, the moving process is not performed until the next event of the moving occurs. Thereafter, the process returns from the event processing routine and returns to the main processing routine.

If it is determined in step S46 that the event is not a movement event, then it is checked whether or not the event is a switch event (step S49). This is performed by checking the set or cleared state of each switch taken in from the operation panel 14. And
If it is determined that there is a switch event, switch processing is performed (step S50). This switch process is a process for realizing the function of the switch having the event. For example, when there is an ON event of the tone selection switch 142, a process of selecting a tone is performed. Next, the switch flag is cleared (step S51). As a result, the switch process is not performed until the next switch event occurs. Thereafter, the process returns from the event processing routine and returns to the main processing routine.

[0086]

As described in detail above, according to the present invention,
It is possible to provide a performance information input device for an electronic musical instrument, which can input performance information for generating a wide and subtle sound by a simple operation.

[Brief description of the drawings]

FIG. 1 is an external view of an electronic musical instrument to which a performance information input device according to an embodiment of the present invention is applied, which is partially cut away and viewed from above.

FIG. 2 is a block diagram showing an electrical configuration of an electronic musical instrument to which the performance information input device according to one embodiment of the present invention is applied.

FIG. 3 is a flowchart illustrating a main process according to an embodiment of the present invention.

FIG. 4 is a flowchart illustrating a timer interrupt process according to an embodiment of the present invention.

FIG. 5 is a flowchart showing event processing according to the embodiment of the present invention.

FIG. 6 is a flowchart illustrating a touch-on process according to an embodiment of the present invention.

FIG. 7 is a flowchart illustrating a touch-off process according to an embodiment of the present invention.

FIG. 8 is a flowchart showing a moving process according to one embodiment of the present invention.

FIG. 9 is a flowchart illustrating a parameter value calculation process according to an embodiment of the present invention.

FIG. 10 is a flowchart illustrating a pitch value calculation process according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 CPU 11 ROM 12 RAM 13 Touch panel 14 Operation panel 15 Sound source 16 Audio system 17 Communication interface 18 External input terminal 19 External output terminal 30 System bus 130 Keyboard picture 140 Sound control operator group 141 Display 142 Tone selection switch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10H 1/34 G10H 1/053

Claims (1)

(57) [Claims] 1. A performance information input device for inputting performance information to an electronic musical instrument, comprising: a touch panel on which a picture of a key is drawn;
A detecting means for outputting a coordinate value of the direction and the second direction, in response to the touch panel is touched, the contact
Specify the pitch assigned to the key drawn at the position
The performance information is converted to the coordinate value in the first direction from the detection means.
Other than the performance information generated based on the pitch and designating the pitch.
The performance information is converted to the coordinate values in the second direction from the detection means.
Generated based on the touch panel
In response to the touch position being moved, the detecting means
The movement amount is calculated based on the coordinate value in the first direction of
A new sound whose pitch has been changed according to the calculated movement amount
A performance information input device for an electronic musical instrument, comprising: performance information generating means for generating performance information specifying a height .