JP2959417B2 - Electronic musical instrument data setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data setting device for setting data in an electronic musical instrument, and more particularly, to a MIDI keyboard for controlling the performance of an electronic musical instrument such as a keyboard device which does not have performance operators. It is something.

[0002]

2. Description of the Related Art MIDI (Musical Instruments Digital Integer) is used as an operating device for controlling the performance of an electronic musical instrument having no keyboard device or the like, for example, comprising only a sound source module.
rface) A device called a keyboard has been conventionally known. In this MIDI keyboard, since there are almost no devices to be controlled in the main body, an operation panel for setting various functions of an electronic musical instrument connected by a MIDI cable and an operation panel for performing operations can be performed interactively. It is common that no display is attached.

[0003] However, even with such a MIDI keyboard, it may be necessary to generate signals for controlling various functions of a connected electronic musical instrument. In this case, since the MIDI keyboard does not include the operation panel and the display as described above, it is impossible to instruct interactive commands.
Therefore, a MIDI command is generated using a combination of a small number of switches or a keyboard and sent to an electronic musical instrument.

By the way, MIDI commands are MIDI
According to the standard, a code system is defined in units of 1 byte, and many MIDI commands have a radix of one.
It is represented by the hexadecimal number (Hexadecimal Numbers) notation as 6. On the other hand, in a MIDI command, a data byte for specifying a numerical value specifies a tempo, a tone number, and the like. In this case, a decimal number (Decimal Numbers) notation system with a radix of 10 is used. Are often used to specify numerical values.

As described above, in order to generate MIDI commands having different number systems, it is necessary to generate MIDI commands using different switches corresponding to the respective number systems, but as described above, only a small number of switches are used. It is not provided for MIDI keyboards. Therefore, a function of generating only a frequently used MIDI command is assigned to a small number of switches or keys in advance, and one of the small number of switches or keys is operated to obtain a required MID.
A different notation numerical value was generated according to the I command.

[0006]

However, if MIDI commands capable of generating a small number of switches and keyboards are assigned in advance, there is a problem that system exclusive commands provided for each model cannot be given from a MIDI keyboard. there were. Also, MID
When a MIDI command is given from an I keyboard to a connected electronic musical instrument to switch the timbre, it is necessary to frequently switch, for example, between a decimal number and a hexadecimal number in a series of MIDI commands.
Since the keyboard does not have a number system switching function,
There is a problem that such a command cannot be given to the electronic musical instrument.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a data setting device that can set data represented by different notations in an electronic musical instrument without providing a large number of switches. It is another object of the present invention to provide a data setting device for an electronic musical instrument capable of transmitting a MIDI command including an arbitrary code such as a system exclusive command.

[0008]

To achieve the above object, a data setting device for an electronic musical instrument according to the present invention comprises a plurality of types of data setting devices.
A command part in which a command can be described, and a command part
Data section that describes data corresponding to the described command
An electronic device that can create communication protocol data consisting of
In the musical instrument data setting device, a plurality of controls,
A performance mode in which an operator is used to input performance information;
Data input mode using the
Mode designation means for designating any one of the
Depending on the data input mode specified by the
Numeric input device for inputting arbitrary numerical values to multiple controls
Function, command specification function to specify the command, and optional
Function to assign each number system specification function to specify the number system
A data input mode by the allocating means and the mode specifying means.
Command is specified, the command
When the operation of the control to which the function is assigned is performed,
Command describing the command specified by the operator
And a control unit to which the numerical input function is assigned.
The number system specification function divides the numerical value entered according to the operation
Changes to the notation system specified according to the operation of the assigned operator.
And a data section describing the converted data.
Is obtained as comprising a data generating means <br/> for generating communication protocol data. Further, the present invention provides the electronic musical instrument data setting device, wherein
The data input mode is set by the mode designating means.
If specified, the command specification function
If the assigned operator is not operated,
Command according to the operation of the control to which the value input function is assigned
Command and data were directly input, and
A command part that describes the command and a data part that describes the data
The communication protocol data generated from the data protocol unit is generated . Still further, the present invention provides the electronic musical instrument data setting device, wherein
The data in the generated communication protocol data;
Data structure changing means for changing the data structure of the
In addition to the above.
Shin protocol is MIDI, the communication protocol data that is generated by the data generating means, MIDI
It is obtained by a compliant data to.

[0009]

According to the present invention, the notation indicating means is provided and the numerical value set by the numerical value setting means is interpreted, so that, for example, the decimal number input and the hexadecimal number input can be frequently switched. Becomes In addition, MI
Since no DI command is assigned, an arbitrary system exclusive message that is not prepared can be generated and instructed to the electronic musical instrument. further,
If the keyboard of the MIDI keyboard is used as the numerical value setting means, a MIDI keyboard which can set data of the electronic musical instrument can be provided only by providing a switch for the keyboard function switching means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic musical instrument data setting device according to the present invention has a MID.
One embodiment applied to an I keyboard is shown in FIG. In this figure, reference numeral 1 denotes a MIDI keyboard operator, a shift key (SHIFT) 2 and keyboards 1a, 1b, 1c,.
.., 1z. Reference numeral 3 denotes an error display LED that lights when the input data includes an error.

FIG. 2 is an internal block diagram of the MIDI keyboard. In this figure, 10 is a shift key 2
, 1z, 11 is a switch interface for the operator 10, 12 is a microcomputer (CPU) controlling the operation of the entire MIDI keyboard, 13 is CP
ROM in which a program executed by U12 is stored
(Read Only Memory) 14 is a RAM (Random Access Memory) in which a work area of the CPU 12 is set.
y) and 15 are MIDI interfaces for sending MIDI commands to the MIDI cable, and 16 is a data address bus.

In the MIDI keyboard configured as described above, an electronic musical instrument (not shown) connected to the MIDI keyboard via a MIDI cable has a MID.
When an I command is transmitted, a MIDI command is generated using the shift key 2 and the keyboards 1a, 1b, 1c,..., 1z. The operation in this case will be described. First, when the keyboards 1a, 1b, 1c,..., 1z are operated while the shift key 2 is operated, FIG.
Is the mode attached to each key. That is, when the keyboard 1a is operated, a mode for generating a bank select (BANK SEL) command consisting of two bytes of data is operated. When the keyboard 1b is operated, a mode for generating a program change (PROG CHG) command consisting of one byte of data is operated. Is operated to set the tempo (TEMPO). When the keyboard 1d is operated, the performance start (START) command is sent. When the keyboard 1e is operated, the performance stop (STOP) command is sent. Operate "0" or "F"
Numerical input mode (decimal 15), operation of keyboard 1x selects clear (CLEAR) mode, operation of keyboard 1y selects decimal input (DEC ENTER) selection mode, operation of keyboard 1z selects hexadecimal input (HEX ENTER) Mode.

For example, when the keyboard 1a is operated while the shift key 2 is operated, a bank select mode is set. First, the keyboards 1g and 1h are operated (input of numerical value "01"), and then the keys 1g and 1j are operated (numeric value "1"). 03), and if the keyboard 1z is further operated (hexadecimal number input selection), the CPU 12 detects this and transmits bank select data in hexadecimal notation via the MIDI interface 15. . The transmission code in this case is "Bn
0001, Bn2003 ". "Bn00" in the first half of this transmission code indicates that the data following it is the MSB which is the first byte data of the bank select data, and "Bn20" in the latter half indicates that the data following it is the bank select data. This indicates that the data is the LSB, which is the data of the second byte, and n indicates the channel number.

The bank select data is data for selecting one of the 128 × 128 timbre banks mapped two-dimensionally.
By specifying the position on the axis of one dimension by the MSB of FH,
A desired timbre is selected by designating a position on the axis of the other dimension using the LSB of 00H to 7FH. Here, H in ** H indicates that hexadecimal numbers are used in the notation system. The control change data is also data for selecting a tone.
127 decimal numbers are represented as a number system. Therefore, by transmitting bank select data in hexadecimal notation and control change data in decimal notation from the MIDI keyboard to the electronic musical instrument, a maximum of 12
Any one of 8 × 128 × 128 tone colors can be instructed to the electronic musical instrument.

Here, when the HEX ENTER key (keyboard 1z) is operated after operating the numerical keys of the keys 1g to 1w, or when the DEC ENTER key (keyboard 1y) is operated, MI
FIG. 11 shows data generated and output by the DI keyboard.
This will be described with reference to FIG. For example, as shown in FIG. 11A, after operating the numerical keys of “1”, “0” and “3”,
By operating the ENTER key, 2-byte data of "01H" and "03H" is generated. If the input numerical value is bank select data, "01H" is MS
B data, "03H" is LSB data and M
Sent from IDI keyboard. When the DEC ENTER key is operated after operating the numerical keys of "1", "0" and "3" as shown in FIG. 7B, the decimal number "103" is converted into the hexadecimal number "67H". Generated and sent. That is, when this numerical value is program change data, the numerical value of “103” expressed in decimal is 1
It is converted to hexadecimal "67H" and transmitted from the MIDI keyboard.

FIG. 3 shows an example of such a command. When the command is used as a bank select (BANK SELECT) function, the transmission code is "Bn00 ms" as described above.
b, Bn20lsb ", and a numerical value is input. When the function is a program change (PROGRAM CHANGE) function, the transmission code is set to "Cnpp" and a numerical value is input. Here, Cn indicates that the following 1-byte data is program change data, n is a channel number, and pp is hexadecimal numerical data.

When the tempo function is set, the transmission code is set to "F8" and a numerical value is input, but the tempo is set by adjusting the period of the synchronous clock transmitted from the MIDI keyboard. Is not transmitted as tempo data. For this reason, parentheses are shown. Further, in the case of a start (START) function for instructing the start of a performance, "F
If the transmission code of "A" is a stop (STOP) function for instructing to stop playing, the transmission code of "FC" is used. Since the commands of these functions are executed when they are received, there is no numerical input. Is done.

Next, the operation of the MIDI keyboard shown in FIGS. 1 and 2 according to one embodiment of the present invention will be described in detail with reference to flowcharts. FIG. 4 shows a main processing flow. When the power is turned on, initialization processing such as resetting of various registers is performed in step S10, and then the power is turned on while the shift (SHIFT) key 2 is pressed down. It is determined in step S20 whether or not it has been. If it is determined that the power is turned on while the shift key 2 is pressed down, the process proceeds to step S40, where MSB first is set to “0”, and if it is not determined that the power is turned on while the shift key 2 is pressed down, Step S3
At 0, MSB first is set to "1". this is,
When a tone is selected by the bank select data, the axis designated by the MSB of the data and the axis designated by the LSB may have a bank structure interchanged depending on the model or the manufacturer. LSB
In order to replace them.

Next, in step S50, the operator 1 is scanned, and if an operator event is detected in step S60, operator processing is executed in step S70, and the flow advances to step S80 to detect the operator event. If not, the process proceeds directly to step S80. In step S80, the MIDI buffer is scanned, and if a MIDI event is detected in step S90, a process of transmitting the MIDI event detected in step S100 is performed. Then, whether the MIDI transmission process ends,
If a MIDI event is not detected in step S90, the process returns to step S50, and the processing in steps S50 to S100 is performed in a cyclic manner.

FIG. 5 shows the flow of the operation processing executed in step S70. When this flow is started, shift (SHIFT) key processing is executed in step S200, and it is then detected in step S210 whether or not the register indicating the state of the shift key is "1". If it is detected that the register indicating the state of the shift key is "1", it is determined that the mode is one in which the MIDI command is transmitted, and the command key processing is performed in step S220, and the numerical value is related in step S230. The key processing is subsequently performed. Further, it is not detected that the register indicating the state of the shift key is "1", and if the register is "0", it is determined that the mode for transmitting the MIDI command is not set, and the key is turned on in the MIDI buffer in step S240. (KON) / key-off (KOFF) commands are additionally written.

FIG. 6 shows the flow of the shift key process executed in step S200. When this flow starts, the shift key is turned off (OF) in step S300.
F) It is detected whether or not it has been performed. When the user releases the shift key, the shift key is turned off. In this case, the contents of the register indicating the state of the shift key are reset to "0" in step 310, and the contents of the numerical value buffer and the command buffer are cleared in step S320. Is returned. If the user keeps pressing the shift key, it is not detected that the shift key has been turned off, and "1" is set in the register indicating the state of the shift key in step S330, and the process returns.

Next, FIG. 7 shows a flow of the command key processing executed in step S220. When this flow is started, the numerical value buffer and the command buffer are cleared in step S400, and then it is determined with reference to the table shown in FIG. If it is determined in this step that the command does not require numeric input, the command specified in the MIDI buffer is added in step S430, and the process returns. If it is determined that the command is not a numeric input unnecessary command, the command specified in the command buffer is added in step S420, and the command is returned.

FIG. 9 shows a flow of the numerical value-related key processing executed in step S230 in the operation element processing flow. When this flow is started, step S60
At 0, it is detected whether or not the numeric key is operated, and when it is detected that the numeric key is operated, the numerical value input to the numerical value buffer is added and written at step S750, and the process returns. If it is not detected as a numeric key,
The key operated in step S610 is cleared (CLEAR
If it is detected that the key is pressed or not, and if it is detected that the clear key has been operated, the numerical value buffer is cleared in step S740 and the process returns.

If it is not detected that the clear key has been operated, it is detected in step S620 whether or not the operated key is a decimal number input (DEC ENTER) key.
If it is detected that the 0-ary input key has been operated, "1" is set in the register DEC in step S640, and the process proceeds to step S650. When it is detected that the decimal input key is not operated, the hexadecimal input (HEX ENTE
R) Since the key has been operated, step S63 is performed.
At 0, “0” is set in the register DEC, and the process proceeds to step S650. Next, a numerical value buffer interpretation process is performed in step S650, and it is detected in step S660 whether or not data exists in the command buffer. If it is detected in this step that the command is in the buffer, it is determined in step S whether the numerical value is within the range required by the command.
It is determined at 670.

Here, the present invention can transmit an arbitrary hexadecimal number as a MIDI output, and can transmit an exclusive message using this function, for example. Therefore, if the command is not in the buffer, it is determined in step S660 that the command is a direct input such as a system exclusive message. Then, it is determined in step S710 whether or not the arbitrary numerical value is equal to or less than 255 (FF in hexadecimal). If it is determined that the numerical value exceeds 255, the LED 3 is turned on in step S700 and an error is displayed. Proceed to step S690. If the value is determined to be 255 or less, the value is added to the MIDI buffer in step S720 and written, and the process proceeds to step S690.

If it is determined in step S670 that the value is out of the range required by the command, step S700
The LED 3 is turned on to display an error, and the process proceeds to step S690. If it is determined that the command is within the range required by the command, a MIDI command is created from the numerical value interpreted as the command in the command buffer in step 680, and the MIDI command is generated.
Write in addition to DI buffer. Further, in the case of a tempo setting (TEMPO) command, interrupt information is set. With this interrupt information, the timing of the code transmission of the synchronous clock transmitted as “F8” is adjusted so as to be at the set tempo. Next, in step S690, the numerical value buffer and the command buffer are cleared and the process returns.

Next, FIG. 8 shows the flow of the numerical value buffer interpretation processing executed in step S650. When this flow is started, the information of the numerical buffer is converted into 10 in accordance with the contents of the register DEC in step S500.
It is determined whether the number is a hexadecimal number (DEC = 1) or a hexadecimal number (DEC = 0), and the process described with reference to FIG. 11 is performed to convert the value into a 1-byte or 2-byte numerical value. Next, it is determined whether or not the MSB first is “1” in step S.
The determination is made at 510, and if the MSB first is determined to be “1”, the process returns as it is. If the MSB first is not determined to be “1”, the data is 2 bytes. Is executed and returned. As a result, the axes of the tone color bank configured to be mapped in two dimensions as described above can be exchanged.

Next, FIG. 10 shows a flow of the MIDI transmission processing executed in step S100 in the main processing flow. When the MIDI transmission process starts,
In step S800, one-byte data is extracted from the MIDI buffer, the extracted data is transmitted to the MIDI interface in step S810, and the transmitted data is transmitted to the MIDI interface in step S820.
Removed from buffer. Next, in step S830, it is determined whether or not there is data in the MIDI buffer. If it is determined that there is data, the process proceeds to step S80.
Returning to 0, the processing up to step S820 is repeatedly executed. When it is determined in step S830 that there is no data, the process returns.

As described above, in the MIDI keyboard to which the electronic musical instrument data setting device of the present invention is applied, the keyboards 1a, 1b,.
By operating the keys 1 and 1z, it is possible to determine that the key depression information is not a sound generation instruction but a MIDI command generation instruction and transmit a MIDI command. In this case, shift key 2
All instructions are invalidated when is released. Further, when the command key is erroneously pressed, only the last valid input command is processed. Further, when the numerical key is operated, the numerical value of the numerical buffer at the time when the enter key is operated is finally evaluated. If there is no data in the command buffer, it is interpreted as direct input of MIDI data, and the data is written to the MIDI buffer. This makes it possible to send out any system exclusive message.

Further, it is possible to arbitrarily replace the two-dimensional axis of the tone color bank mapped two-dimensionally to give an instruction. In the above description, an example in which the present invention is applied to a MIDI keyboard has been described. The number system is not limited to the decimal system and the hexadecimal system, but any number system can be used if the enter key is provided based on the system of the applicable device.

[0031]

According to the present invention, as described above, the notation designation means is provided and the numerical value set by the numerical value setting means is interpreted, so that, for example, the decimal number input and the hexadecimal number input are frequently switched. Can be entered. Also,
Since no MIDI command is assigned to the switch in advance, an arbitrary system exclusive message or the like that is not prepared can be generated and instructed to the connected electronic musical instrument. Furthermore, MI as a numerical value setting means
When the keyboard of the DI keyboard is used, a MIDI keyboard that can set the data of the electronic musical instrument can be provided only by providing a switch for the numeral system indicating means.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a controller of a MIDI keyboard to which the present invention is applied.

FIG. 2 is a block diagram of a MIDI keyboard to which the present invention is applied.

FIG. 3 is a diagram showing a part of a MIDI command table.

FIG. 4 is a diagram showing a main processing flow of the present invention.

FIG. 5 is a diagram showing a flow of an operator process in the present invention.

FIG. 6 is a diagram showing a flow of a shift key process in the present invention.

FIG. 7 is a diagram showing a flow of a command key process in the present invention.

FIG. 8 is a diagram showing a flow of a numeric buffer interpretation process according to the present invention.

FIG. 9 is a diagram showing a flow of a numerical key processing in the present invention.

FIG. 10 is a diagram showing a flow of a MIDI transmission process in the present invention.

FIG. 11 is a diagram illustrating an operation of a numerical buffer interpretation process according to the present invention.

[Explanation of symbols]

1 control, 1a-1z keyboard, 2 shift key, 3
LED, 10 operation switch, 11 switch interface, 12 CPU, 13 ROM, 14RA
M, 15 MIDI interface, 16 data
Address bus

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-173560 (JP, A) JP-A-2-134099 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G10H 1/00

Claims (4)

(57) [Claims] A command capable of describing a plurality of types of commands.
Corresponding to the command part and the command described in the command part.
Communication protocol consisting of a data part that describes data
Data setting device for electronic musical instruments that can create
A plurality of operators, a performance mode in which the operators are used to input performance information,
Data input using operators for communication protocol data input
A mode designating means for designating any one of a mode and a data input mode designated by the mode designating means.
A numerical value for inputting an arbitrary numerical value to the plurality of operators
Input function, command specification function to specify a command, and
Allocate a number system specification function to specify an arbitrary number system
A data input mode is designated by the function assigning means and the mode designating means.
The command specification function is assigned.
When the operation of the operated operator is performed,
A command portion describing a command specified by
Enter according to the operation of the control to which the numeric input function is assigned.
The numerical value to be input is
Convert to the number system specified according to the operation of the sculptor,
Communication part consisting of a data part that describes the
An electronic musical instrument data setting device , comprising: data generation means for generating protocol data . 2. The method according to claim 1, wherein the data generation unit is configured to execute the mode designation.
When the data entry mode is specified by means
The operator to which the command designating function is assigned
If the operation is not performed, the numerical input function is
Command and data corresponding to the operation of the
Interpreted as being entered, and
Command part and a data part that describes the data.
Claims characterized by generating communication protocol data
Item 3. An electronic musical instrument data setting device according to item 1. 3. The communication apparatus according to claim 1, wherein said communication means generates said communication data.
Configuration of the data part in communication protocol data
A data configuration changing means for changing, in that it comprises the further
3. The data setting of an electronic musical instrument according to claim 1, wherein
Setting device. Wherein said communication protocol is a MIDI, the communication protocol that will be generated by the data generating means
4. The data setting device for an electronic musical instrument according to claim 1, wherein the file data is data conforming to MIDI.