JP5347289B2 - Performance device and performance processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To freely change the assignment of key areas without disturbing playing operations on a keyboard as required in process of performance. <P>SOLUTION: A keyboard 1 is split into a high key area and a low key area at a split position 3. An octave conversion is executed for decreasing a key number for a prescribed number of octaves when a key that belongs to the high key area is depressed, and for increasing the key number for a prescribed number of octaves when a key that belongs to the low key area is depressed. When a pedal 3a provided corresponding to the low key area is operated to be turned on, the octave conversion similar to the case of the key depression in the low key area is executed even if the key is depressed in the high key area, and the octave conversion similar to the case of the key depression in the high key area is executed even if the key is depressed in the low key area. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a performance device and a program for performance processing.

Conventionally, there has been proposed an instrument having a so-called continuo function or duet function that allows different performers to perform the low key range and the high key range of a single keyboard.
In a musical instrument having this continuo function, octave conversion is separately performed for each key range so that each performer can perform in the same range.

  For example, in Patent Document 1, the keyboard is divided into a low key range and a high key range with the key number SP as the split position, and in the low key range, the pitch of the musical tone designated by the key press is increased by two octaves from normal. In the high key range, a configuration in which an octave down is performed is disclosed.

  Further, in Patent Document 2, by determining the key range to which the key corresponding to the key information generated by the key press belongs, and changing the desired octave amount of the key information generated in this key range based on the determination result, There is disclosed a configuration in which a portion in which pitches of musical sounds generated in at least two key ranges overlap is generated.

  Further, in Patent Document 3, when the keyboard is divided into two key ranges, the original octave value of the key located in the center of the first key range and the reference tone range of the tone set in the first key range are described. A configuration is disclosed in which a reference tone range for each timbre is arranged approximately at the center of each key range by calculating an octave shift amount based on the octave value.

Japanese Patent No. 3586754 Japanese Examined Patent Publication No. 62-35118 JP 2000-194369 A

In this way, when a single player is divided into multiple key ranges and played by different players, the key range used for the performance is narrow, so depending on the music being played, the key range that another player should use The case where it becomes necessary comes out. However, the number of keys and the size of the keyboard are determined in advance, and it is impossible to allocate in advance the key range that each player desires.
In addition, depending on the music to be played, a wide key range may not always be required, and it is very inefficient to allocate a wide key range corresponding to a specific performer in advance.

  In order to solve such problems, it is only necessary to change the key range of each performer during the performance. However, it is practically impossible to change the key range by operating the switches provided on the instrument in the middle of the performance, and providing switches for simplifying these operations is independent, However, it is not preferable to perform it on an electronic musical instrument having a large number of switches.

  The present invention has been made in view of such circumstances, and allows the assignment of a keyboard range to be freely changed when necessary during the performance without interfering with the performance operation on the keyboard. With the goal.

In order to achieve the above object, according to the first aspect of the present invention, a key number for designating a pitch of a musical sound that is divided into a plurality of key ranges by a predetermined split position and should be pronounced in each key range. There a keyboard having a plurality of keys assigned sequentially, separately from this keyboard, a performance operator which provided in a plurality corresponding to the key range of the keyboard, one of the keys of the keyboard is depressed The octave changing means for changing the key number of the key that has been pressed in advance corresponding to the key range to which the pressed key belongs , and any one of the plurality of performance operators In response to the operation, the octave change control means for changing the key number change form of the depressed key by the octave change means so as to widen the key range corresponding to the operated performance operator, and Change by octave changing means And having a tone generation instruction means for instructing the generation of a pitch of a musical tone corresponding to the given key number, the.
According to a second aspect of the present invention that is dependent on the first aspect, the octave change control means is configured so that the other performance operator is in a state in which any one of the plurality of performance operators is operated. If is engineered, and wherein the disabling operation of the other performance operators.
In the invention according to claim 3, which is dependent on claim 1, the performance operator is provided corresponding to each of a low key range and a high key range of the keyboard, and the octave change control means corresponds to the low key range. When the performance operator is operated, all the high key ranges are changed to be included in the low key range, and when the performance operator corresponding to the high key range is operated, all the low key ranges are changed to the high key range. It is characterized by changing to include.
In the invention according to claim 4 , which is dependent on any one of claims 1 to 3 , the performance operator is a pedal.
Furthermore, in the invention according to claim 5 , the key numbers are divided into a plurality of key ranges at predetermined split positions, and key numbers for designating the pitches of musical sounds to be pronounced are sequentially assigned to the respective key ranges. a keyboard having a plurality of keys, apart from this keyboard, the computer to be applied to the performance apparatus having a plurality obtained performance operator corresponding to each key range of the keyboard, one of the key An octave changing step for changing the key number of the key that has been pressed by a predetermined octave corresponding to the key range to which the pressed key belongs when the key is pressed; and the plurality of performances In response to any operation of the operator, the octave changing mode changes the key number of the pressed key in the octave changing step so as to widen the key range corresponding to the operated performance operator. Change control And-up, characterized in that to execute a tone generation instruction step for instructing the generation of the tone pitch of the musical tone corresponding to the changed key number by the octave changing step.

  According to the above invention, when it is desired to expand the assigned key range during the performance, the pedal corresponding to the key range may be operated, and when necessary during the performance, the performance operation on the keyboard can be performed. The assigned key range can be expanded without hindrance.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 is an external view of an electronic keyboard instrument to which the present invention is applied.
The instrument body has a duet switch 1 and a keyboard 2 for designating either the normal mode or the duet mode. The keyboard 2 has 88 keys. In the normal mode, key numbers (MIDI NOTE numbers) 21 (pitch A0) to 108 (sounds) are sequentially assigned to each key from the left side (low key range side). High C8) is assigned.

On the other hand, in the duet mode, the key range is divided with the key corresponding to the split position 3 as a boundary, and the key numbers of the keys included on the low key range side are 45 (pitch A2) to 83 (sequentially from the lowest). Pitch B5) is changed to a value that is two octaves up. Then, each key included in the high key range side is changed to a value that is octave-down, such as key numbers 36 (pitch C2) to 84 (pitch C6), in order from the lowest.
Also, a pedal A (for example, a damper pedal) 3a and a pedal 3b (for example, a sononate pedal) are connected to the instrument body.

FIG. 2 is a block diagram showing the configuration of the electronic keyboard instrument of FIG.
The CPU 10 executes the entire processing of the musical instrument main body, and executes the processing operation based on the program stored in the program ROM 11. The work RAM 12 has an area for temporarily storing data generated by this processing. When the tone generator 13 receives a note-on / note-off event generated by the CPU 10 in response to a key depression / release operation with respect to the keyboard 2, the tone generator 13 generates a musical tone and when the pedal 3a or 3b is depressed. This is a circuit for controlling a musical sound generated by receiving a pedal command created by the CPU 10 corresponding to the pedal.

  These CPU 10, program ROM 11, work RAM 12, tone generator 13, keyboard 2, switch group including mode switch 1, and pedals 3 a and 3 b are connected via a bus line 14.

  By having the above configuration, the electronic keyboard instrument is in a duet mode or a normal mode by operating the duet switch 1, and the key number assigned to each key in each mode is changed as shown in FIG.

  And in duet mode, after the key that is adjacent to one of the divided key ranges is continuously pressed toward the other key range, the subsequent key press happens to reach the other key range. In this case, the key number is changed so that the key depression in the other key area is depressed in one key area.

  Hereinafter, the operation of the CPU 10 will be described with reference to flowcharts. Note that the registers and flags used in the flowchart may be registers in the CPU 10, or a partial area of the work RAM 12 may be set as a register area.

FIG. 3 is a flowchart showing the entire processing of the CPU 10.
First, when a power source (not shown) is turned on, initialization processing (step A1) is executed, followed by SW processing (step A2), pedal processing (step A3), keyboard processing (step A4), and other processing. Processing is executed in the order of (Step A5). The processes in steps A2 to A5 are repeatedly executed until the power is turned off.

FIG. 4 is a detailed flowchart of the SW process (step A2) in FIG.
First, it is determined whether or not the duet switch 1 has been turned on (step B1). If it is determined that the ON operation has been performed, the duet flag stored in the register DF is inverted (step B2), and the duet flag stored in the register DF is “1”, that is, whether the duet mode is set. If it is “1”, the key number “60” corresponding to the split position of the keyboard 2 is stored in the register SP (step B4). Then, the process proceeds to other switch processing (step B5). If it is determined in step B1 that the ON operation has not been performed, the process of steps B2 to B4 is skipped and the process proceeds to step B5. Alternatively, if “0” in step B3, that is, it is determined that the current mode is the normal mode, step B4 is skipped and the process proceeds to step B5. After the process of step B5 is executed, the SW process is terminated.

FIG. 5 is a detailed flowchart of the pedal process (step A3) in FIG.
First, a process corresponding to the pedal 3a is performed in the pedal A process (step C1), and then a process corresponding to the pedal 3b is performed in the pedal B process (step C2).

FIG. 6 is a detailed flowchart of the pedal A process (step C1) in FIG.
First, it is determined whether or not the duet flag stored in the register DF is “1”, that is, the duet mode (step D1). If the duet flag is “0”, that is, in the normal mode, the routine proceeds to step D2, where it is determined whether or not the state of the pedal 3a has changed. If it is determined that there is no change, the pedal A process is terminated.

  If it is determined that the pedal 3a is operated and there is a change, it is further determined whether or not the operation is on (step D3). If it is determined that the operation is on, a pedal A on command is created and sent to the sound source 13 (step D4). On the contrary, if it is determined to be an off operation, a pedal A on command is created and sent to the sound source 13 (step D5).

  Thus, in the normal mode, if the pedal 3a is turned on or off, processing corresponding to a function (for example, a damper function) assigned in advance to the pedal 3a is performed.

On the other hand, if the duet flag is “1” in step D1, that is, in the duet mode, the process proceeds to step D6, where it is determined whether or not a sound is being generated. . If there is no sound, it is determined whether or not the flag PBF stored in the register is "0", that is, whether the pedal 3b is in an on state (step D7). If it is determined that the pedal is on, the pedal A process is terminated without doing anything. On the contrary, if it is determined that the pedal is not in the on state, it is further determined whether or not the pedal 3a is turned on and in the on state (step D8). If it is determined that the pedal 3a is in the ON state, it is determined whether or not the content of the register PAF storing the flag indicating the state of the pedal 3a is "0", that is, whether the pedal 3a is in the OFF state (step D9). If it is determined that the current state is the off state, the process proceeds to step D10, the register PAF is set to “1”, and the process is terminated. On the other hand, if it is determined that the value is “1”, the process is terminated.

  On the other hand, if it is determined in step D8 that the pedal is in the off state, it is determined whether or not the content of the register PAF is “1”, that is, whether the pedal 3a is in the on state (step D11). If it is determined that the current state is the off state, the process proceeds to step D12, the register PAF is set to “0”, and this process ends. On the other hand, if it is determined that the value is “0”, the process is terminated.

  As described above, when the pedal 3a is turned on or off in the duet mode, the flag stored in the register PAF is set to “1” or “0” in accordance with the operation state. In the present embodiment, if the other pedal 3b is turned on first and the register PBF storing the flag indicating the state is "1", the operation of the pedal 3a is invalidated. Further, in the duet mode, the function assigned in advance to the pedal 3a is also invalidated.

FIG. 7 is a detailed flowchart of the pedal B process (step C2) in FIG. This pedal B process is basically the same as the pedal A process of FIG.
The processing of steps E1 to E5 shows a case where the pedal 3b is operated in the normal mode, and is almost the same as steps D1 to D5. In steps E4 and E5, the only difference is that when the pedal 3b is turned on or off, the CPU 10 creates a command corresponding to a function (for example, a sostenuto function) previously assigned to the pedal 3b.

Further, the processing of steps E6 to E12 is almost the same as the processing of steps D6 to D12 of FIG. 6, and is different only in that the registers PAF and PBF are interchanged.
As described above, in the normal mode, if the pedal 3b is turned on or off, the function assigned to the pedal 3b is processed. In the duet mode, the register PBF is set in accordance with the operation state of the pedal 3b. The stored flag is set to “1” or “0”. Here, of course, if the pedal 3a is turned on first and the register PBF storing the flag indicating the state is "1", the operation of the pedal 3b is invalidated. Further, in the duet mode, the function assigned in advance to the pedal 3b is also invalidated.

8 to 10 are detailed flowcharts of the keyboard process (step A3) in FIG.
First, in FIG. 8, the keyboard 2 is scanned (step F1), and it is determined whether or not the key state has changed (step F2). If it is determined that there is no change, the keyboard process is terminated.
On the other hand, when the key state changes from off to on (key depression) in step F2, the key number of the key whose change is detected is stored in the register N (step F3). Subsequently, it is determined whether or not the duet flag DF is "0", that is, the normal mode (step F4). If it is in the normal mode, the process proceeds to step F5 and a note-on command based on the key number stored in the register N is created.

  If it is determined in step F2 that the key has changed from on to off (key release), the process proceeds to step F6, and the key number of the key whose change has been detected is stored in the register N. Then, it is determined whether or not the duet flag DF is “0”, that is, the normal mode (step F7). If it is in the normal mode, the process proceeds to step F8, and a note-off command based on the key number stored in the register N is created.

  The note-on command and note-off command generated in step F5 or F8 are sent to the sound source 13 (step F9), and the sound source 13 generates or stops generation of the musical sound based on these commands.

  If the duet flag stored in the register DF in step F4 is “1”, that is, in the duet mode, the process proceeds to step F10 in FIG. 9, and the key number pressed in the register N is stored in the register SP. It is determined whether or not the key number is equal to or greater than the split position. If it is determined that the key number of the key pressed here is equal to or greater than the key number at the split position, that is, if it is determined that the key is pressed in the high key range of the keyboard 2, then the pedal stored in the register PAF It is determined whether or not the flag representing the state of 3a is “0” (step F11). If it is determined that the flag is “0”, that is, the pedal 3a is in the off state, “24” is subtracted from the key number of the register N, that is, the octave is lowered by 2 (step F12). On the contrary, if PAF is “1” and the pedal 3a is on, “24” is added from the key number of the register N, that is, the octave is increased by 2 (step F13).

  In this way, when the high key range is pressed in the duet mode, the key press is lowered by two octaves, and when pressed in the low key range, the key press is increased by two octaves, but the pedal 3a is turned on. If the key is pressed, even if the key is pressed in the high key range, the key is increased by two octaves as if the key was pressed in the low key range. In other words, if there is no key range in the performance in the low key range, if the pedal 3a is turned on and the high key range is pressed, it means that the same sound is produced as if the key was pressed in the low key range.

  A note-on command is created in step F14 based on the key number of the register N octave-converted in step F12 or F13, and the created command is sent to the sound source 13 (step F15).

  On the other hand, if it is determined in step F10 that the key number pressed is less than the keyboard number corresponding to the split position, that is, it is determined that the key is pressed in the low key range, the pedal stored in the register PBF It is determined whether or not the flag representing the state of 3b is “0” (step F16). Here, when the flag is “0”, that is, when it is determined that the pedal 3b is in the OFF state, “24” is added from the key number of the register N, that is, two octaves are increased (step F17). On the other hand, if PBF is “1” and the pedal 3b is in the on state, “24” is subtracted from the key number of the register N, that is, two octaves are increased (step F18). The octave-converted key number is processed in steps F14 and F15, and this process is terminated.

In this way, if there is no key range in the performance in the high key range, if the pedal 3b is turned on and the low key range is pressed, the octave conversion of 2 octave up is performed in the same way as when the key is pressed in the high key range. Pronounced.
If it is determined in step F7 in FIG. 8 that the duet mode is set, the process proceeds to FIG.

  The processing in steps F19 to F24 in FIG. 10 is basically the same as the processing in F10 to F18 in FIG. The only difference is that a note-off command is created based on the octave-converted note number in step F23.

  As described above, in this embodiment, when the pedal 3a is turned on, even when the key is pressed in the high key range, the same octave conversion (two octave up) as when the key is pressed in the low key range is performed. When the key is turned on, the octave conversion (2 octave down) is performed even when the key is pressed in the low key range, as if the key was pressed in the high key range. In other words, if a performer performing with each key range determines that the key range assigned to his / her performance is not enough, the key range assigned to other performers is also assigned to him / her. You can play as a key range.

  Moreover, it is only necessary to turn on the pedal corresponding to the key range assigned to the player's performance, and no complicated switch operation is required, so there is no need to interrupt the performance. In addition, while one player is operating the pedal on, even if the pedal corresponding to the key range assigned to another player is turned on, the operation is invalid, so the split position is frequently The performance will not be confused.

In this embodiment, the key range of the keyboard 2 is divided into a low key range and a high key range by one split position, but may be divided into three or more key ranges by a plurality of split positions.
In this embodiment, when the pedal is turned on, the split position is changed so that one key range includes all the other key ranges. However, a part of the other key range such as one octave is used. The split position may be changed so that only the signal is included.

  Furthermore, in this embodiment, two types of pedals are used as performance operators, but other performance operators, for example, a plurality of vendor operators or volume operators may be used.

1 is an external view of an electronic keyboard instrument to which the present invention is applied. It is a block diagram which shows the structure of the electronic keyboard instrument of FIG. It is the flowchart which showed the whole process of CPU10. It is a detailed flowchart of SW processing (step A2) of FIG. It is a detailed flowchart of the pedal process (step A3) of FIG. It is a detailed flowchart of the pedal A process (step C1) of FIG. It is a detailed flowchart of the pedal A process (step C1) of FIG. It is a detailed flowchart (part) of the keyboard process (step A3) of FIG. FIG. 4 is a detailed flowchart of keyboard processing (step A3) in FIG. 3 (continuation). FIG. 4 is a detailed flowchart of keyboard processing (step A3) in FIG. 3 (continuation).

Explanation of symbols

1 Duet switch 2 Keyboard 3a Pedal 3b Pedal 10 CPU
11 Program ROM
12 Work RAM
13 Sound source

Claims (5)

A keyboard having a plurality of keys that are divided into a plurality of key ranges by a predetermined split position and sequentially assigned with key numbers for designating pitches of musical sounds to be pronounced in the respective key ranges;
Separately from this keyboard, a plurality of performance operators provided corresponding to each key range of the keyboard ,
Octave changing means for changing the key number of the key that has been pressed by a preset octave corresponding to the key range to which the pressed key belongs when any key on this keyboard is pressed When,
Corresponding to the operation of any of the plurality of performance operators, the key number change mode of the key pressed by the octave changing means is expanded so that the key range corresponding to the operated performance operator is expanded. Octave change control means for changing to
A tone generation instruction means for instructing the generation of a pitch of a musical tone corresponding to the changed key number by the octave changing means,
A performance device having The octave change control means, in a state where any one of the operators of the plurality of performance operators are operated, if other performance operator is operated, disabling the operation of the other performance operators The performance device according to claim 1, wherein: The performance operators are provided corresponding to the low and high key ranges of the keyboard,
The octave change control means, if the performance operator corresponding to the low key range is operated, all the high key range with varied to include a low key range, the performance operator corresponding to the high key range is operated 2. The performance apparatus according to claim 1, wherein the performance is changed so that all the low key ranges are included in the high key range. 4. The performance device according to claim 1 , wherein the performance operator is a pedal. A keyboard having a plurality of keys that are divided into a plurality of key ranges by a predetermined split position and in which key numbers for sequentially specifying the pitches of musical notes to be pronounced are assigned to the respective key ranges. Separately , a computer applied to a performance device having a plurality of performance operators corresponding to each key range of the keyboard ,
Octave change step for changing the key number of the key that has been pressed by a preset octave corresponding to the key range to which the pressed key belongs when any key on this keyboard is pressed When,
Corresponding to the operation of any one of the plurality of performance operators, the key number change form of the depressed key in the octave changing step is expanded so that the key range corresponding to the operated performance operator is expanded. Octave change control step to change to,
A musical sound generation instruction step for instructing generation of a musical sound having a pitch corresponding to the key number changed in the octave changing step ;
A performance processing program that executes

Images