JPH10260681A - Method and device for altering playing data and medium recorded with program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically alter the whole playing data without a feeling of physical disorder by retrieving data of the same kind with indicated data to be altered from actual playing data and altering or erasing the retrieved data according to an indication. SOLUTION: When a user indicates an alteration of sound volume in initial setting data, for example, from 50 to 80, a playing data altering device generates new initial setting data 52. The playing data altering device discriminates the kind of an even of the alteration that the user indicates. Then an event of the same kind with the even is erased from the actual playing data and actual playing data 53 are generated. For example, an even such as a sound volume alteration 60 and a sound volume alteration 70 is erased. Then all the events of sound volume alterations in the actual playing data 53 are erased and then the setting of sound volume 80 in the initial setting data 52 becomes effective to the whole in the playing data 51 in principle. The user becomes able to set the reference sound volume of the whole music to 80.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to performance data processing, and more particularly to performance data change processing capable of changing performance data values to desired values.

[0002]

2. Description of the Related Art FIG. 7 is a diagram showing the format of song data.

The song data 4 is automatic performance data for one music piece, and has performance data 1 for each of tracks 1 to n. When the song data 4 is recorded in a standard MIDI file format, the performance data 1
Expressed using the format of DI data. The MIDI data includes setting data for performing settings such as a tone color and an effect in addition to note on / off.

[0004] Initial setting data 2 is often placed at the beginning of performance data 1. The initial setting data 2 is setting data set in advance to play the song.
For example, a tone color, a volume, an effect, or the like.

[0005] The performance data 1 is roughly divided into the above-described initial setting data 2 and the actual performance data 3 following the initial setting data 2. The actual performance data 3 is performance data other than the initial setting data 2 and is, for example, data after note-on which appears first in the music.

The actual performance data 3 is constituted by a set of an interval and an event. The actual performance data 3 includes note on / off and setting data (volume change, etc.) that is valid only for a specific section.

To perform an automatic performance, first, the initial setting data 2 is read out, initial settings such as timbre are made, and then the actual performance data 3 is read out, and an automatic performance including sound generation and mute is performed. Performance data 1 ends with end data.

[0008]

The user may want to change the performance data 1 according to his / her preference. In that case, using a sequencer or personal computer, the performance data 1
Individual events or intervals can be changed.

However, since the beginner has little knowledge of the performance data, if the initial setting data 2 is changed, it may be misunderstood that the change is effective for the entire performance data 1. For example, the volume 50 in the initial setting data 2 is set to 8
It may be misunderstood that changing it to 0 can increase the volume from the beginning to the end of the song.

In practice, the volume in the initial setting data 2 is set to 5
Even if the value is changed from 0 to 80, the volume change 60 and the volume change 70 existing in the actual performance data 3 are not changed. The performance data before the change has an initial volume of 50, and then the volume is increased to 60 and 70. However, the performance data after the change has an initial volume of 80, and after that, the volume once becomes 6
It falls to 0 and then rises to 70. Before and after the change, the song feels different, giving a sense of incompatibility.

It is an object of the present invention to provide a performance data changing apparatus, a performance data changing method, and a recording medium for a program, which automatically change the entire performance data so as not to make the user uncomfortable by changing the initial setting data.

[0012]

According to one aspect of the present invention, there is provided an apparatus for changing performance data comprising initial setting data and actual performance data, comprising: a change instruction for instructing a change of data in the initial setting data. Means, searching means for searching data of the same type as the data instructed to change from the actual performance data, and changing means for changing or deleting the searched data in accordance with the specified change. Is provided.

Just by instructing to change the data in the initial setting data, the same type of data as the instruction data in the actual performance data can be changed or deleted according to the instructed change. In other words, if a change of the initial setting data is instructed, the change instruction can be made effective throughout the performance data.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A case where the performance data 1 shown in FIG. 7 is changed will be described as an example. The user can make a desired change over the entire performance data 1 (including the actual performance data 2) simply by performing an operation to change the initial setting data 2 in the performance data 1.

The user may wish to make various changes according to his / her preference or performance environment. For example, if the volume of the initial setting data is increased, there is a case where the volume of the entire performance data is desired to be increased by the same amount. Further, if the volume of the initial setting data is changed, it may be desired to change the entire performance data to the same volume as the changed volume. In addition, there are various requests.

When changing the performance data 1, the user
First, in order to determine what kind of change is desired to be made, for example, one of the change modes 1 to 4 in FIGS. The performance data changing device can make various changes to the performance data according to the mode selected by the user. Changes in each of the change modes 1 to 4 are shown in FIGS.

FIG. 1 is a diagram for explaining the operation in the change mode 1. In the change mode 1, the performance data 1 (FIG. 7) is changed to the performance data 51 (FIG. 1). The initial setting data 2 and the actual performance data 3 in the performance data 1 are changed to the initial setting data 52 and the actual performance data 53 in the performance data 51, respectively.

When the user instructs, for example, to change the volume in the initial setting data from 50 to 80, the performance data changing device generates new initial setting data 52. Then, the following actual performance data 53 is generated.

Specifically, the performance data changing device first identifies the type of the event whose change is instructed by the user. The event type is, for example, volume. Thereafter, an event of the same type as the event is deleted from the actual performance data 3 to generate actual performance data 53. For example, events such as volume change 60 and volume change 70 are deleted.

By erasing all the volume change events in the actual performance data 53, the setting of the volume 80 in the initial setting data 52 becomes effective in principle in all of the performance data 51. The user can set the reference volume of the entire song to 80.

When the events of the volume change 60 and the volume change 70 in the actual performance data are deleted, the interval 4
Is added to the previous interval 3 to form one interval, and interval 7 is converted to the previous interval 6
And combine them into one interval. Other than the above method, for example, a method of deleting one of the two intervals or leaving both of them may be used.

FIG. 2 is a diagram for explaining the operation in the change mode 2. In the change mode 2, the performance data 1 (FIG. 7) is changed to the performance data 61 (FIG. 2). The user
For example, when an instruction is given to change the volume in the initial setting data 2 from 50 to 80, the performance data changing device generates new initial setting data 62 based on the original initial setting data 2.

The performance data changing device changes the original real performance data 3 and generates new real performance data 63 in response to the above-mentioned user's change instruction. Specifically, the performance data changing device first identifies the type (for example, volume) of the event whose change is instructed by the user, and then, in the actual performance data, generates an event of the same type as the event.
Change them all to the same value. For example, both the events of the volume change 60 and the volume change 70 are changed to the volume change 80.

In the actual performance data 63, the same volume as the volume 80 in the initial setting data 62 is set, so that the volume can be set to a substantially constant level over the entire performance data 61.

FIG. 3 is a diagram for explaining the operation in the change mode 3. In the change mode 3, the performance data 1 (FIG. 7) is changed to the performance data 71 (FIG. 3). The user
For example, when an instruction is given to change the volume in the initial setting data 2 from 50 to 80, the performance data changing device generates new initial setting data 72 based on the original initial setting data 2.

The performance data changing device changes the original actual performance data 3 and generates new actual performance data 73 in accordance with the above-mentioned user's change instruction. Specifically, the performance data changing device first identifies the type (for example, volume) of the event whose change is instructed by the user, and further checks the amount of change in the value whose change is instructed. The amount of change is, for example,
The sound volume 50 = + 30. Thereafter, in the actual performance data, the values of events of the same type as the event are all changed by the same amount. For example, the volume change 60 and the volume change 70 are respectively a volume change 90 (= 60 + 30)
And volume change 100 (= 70 + 30).

The data in the actual performance data 73 is changed by the same amount as the change amount in the initial setting data 72. The performance data is entirely changed in volume by the amount specified by the user. That is, the volume of the performance data can be entirely changed without changing the relative volume balance.

However, this change mode is effective when the change amount is small, but when the change amount is too large, the volume may exceed the maximum value or become smaller than zero. In that case, a limiter may be provided for the maximum value and 0. When the change amount is too large and the image of the music changes, the change mode 4 described below is effective.

FIG. 4 is a diagram for explaining the operation in the change mode 4. In the change mode 4, the performance data 1 (FIG. 7) is changed to the performance data 81 (FIG. 4). The user
For example, when an instruction is given to change the volume in the initial setting data 2 from 50 to 80, the performance data changing device generates new initial setting data 82 based on the original initial setting data 2.

The performance data changing device changes the original actual performance data 3 and generates new actual performance data 83 according to the above-mentioned user's change instruction. Specifically, the performance data change device first identifies the type (for example, volume) of the event whose change is instructed by the user, and further checks the change magnification of the value whose change is instructed. The change magnification is, for example, volume 8
0 ÷ volume 50 = 1.6. Then, in the actual performance data, the value of the event of the same type as the event is
All are changed by the same change magnification. For example, volume change 60
And volume change 70 are volume change 96 (= 60 ×
1.6) and volume change 112 (= 70 × 1.6).

The data in the actual performance data 83 is changed by the same amount as the change magnification in the initial setting data 82. The performance data is entirely changed in volume by the magnification specified by the user. Naturally, the volume of the performance data can be changed as a whole in terms of audibility.

FIG. 5 shows a hardware configuration of an electronic musical instrument including a performance data changing device according to an embodiment of the present invention.

To the bus 35, a keyboard detection circuit 28, a switch detection circuit 30, a display circuit 31, a sound source circuit 32, an effect circuit 33, a RAM 21, a ROM 22, a CPU 23, an external storage device 25, and an interface 26 are connected.

The user can use the switch 29 to give an instruction to change the initial setting data. The switch detection circuit 30 detects a switch operation using the switch 29 and generates a switch signal.

The user can use the keyboard 27 to instruct to change the initial setting data. Keyboard detection circuit 28
Detects a key operation using the keyboard 27 and generates a note-on or note-off signal or the like. However, the keyboard 27 is not always necessary.

The display circuit 31 can display the performance data before or after the change. The user operates the display circuit 3
It is possible to instruct to change the initial setting data while referring to the performance data displayed in 1.

The external storage device 25 includes an interface for the external storage device, and is connected to the bus 35 via the interface. The external storage device 25 includes, for example, a floppy disk drive (FDD), a hard disk drive (HDD), a magneto-optical disk (MO) drive,
A CD-ROM (compact disk-read only memory) drive or the like.

The RAM 21 stores a flag or a buffer,
It has a working area for the CPU 23 for storing IDI performance data and the like. The ROM 22 stores various parameters and control programs, a performance data change program in the present embodiment, and the like. The CPU 23 performs calculation or control according to a control program or the like stored in the ROM 22.

The timer 24 is connected to the CPU 23 and instructs the CPU 23 of an interrupt processing timing.
The interface 26 is a MIDI interface or an interface for other communication networks.

The performance data before the change is stored in the external recording device 2
5, stored in the RAM 21 or the ROM 22. The changed performance data is written to the writable external storage device 25 or the RAM 21. The performance data before or after the change can be input / output to / from the outside via the interface 26.

The CPU 23 can read the performance data before or after the change from the RAM 21 or the like, and supply the tone parameter and the effect parameter to the tone generator circuit 32 and the effect circuit 33, respectively.

The CPU 23 generates a tone parameter and an effect parameter in accordance with a note-on signal or the like generated by the keyboard detection circuit 28 or a switch signal generated by the switch detection circuit 30, and generates a tone generator circuit 32 and an effect parameter, respectively. It can also be supplied to the circuit 33.

The tone generator 32 generates a tone signal according to the tone parameters supplied. The effect circuit 33 applies, for example, an effect such as delay or reverb to the tone signal generated by the tone generator circuit 32 in accordance with the supplied effect parameter, and supplies the tone signal to the sound system 34. The sound system 34 includes a D / A converter and a speaker, and converts a supplied digital tone signal into an analog format and generates a sound.

The tone generator circuit 32 has a waveform memory system,
Any method such as an FM method, a physical model method, a harmonic synthesis method, a formant synthesis method, and an analog synthesizer method of VCO + VCF + VCA may be used.

The tone generator circuit 32 is not limited to a configuration using dedicated hardware, but may be configured using a DSP + microprogram, or may be configured using a CPU + software program.

Further, a plurality of tone generation channels may be formed by using one tone generator circuit in a time division manner, or a plurality of tone generator circuits may be used and one tone generator circuit may be used for one tone channel. A pronunciation channel may be configured.

The control program or performance data is stored in the HDD
25 can be stored in the hard disk. By reading the control program and the like from the hard disk to the RAM 21, the CPU 23 can cause the CPU 23 to perform the same operation as when the control program and the like are stored in the ROM 22. By doing so, it is possible to easily add a control program and the like, upgrade the version, and the like.

Further, a control program or performance data can be stored in a CD-ROM. CD-ROM
Can copy control programs, performance data, etc. to the hard disk. New installation and version upgrade of the control program and the like can be easily performed.

The communication interface 26 is connectable to a communication network 36 such as a LAN (local area network), the Internet, or a telephone line. The communication interface 26 is connected to a server computer 37 via the communication network 36, and is connected to an external storage device such as an HDD. A control program, performance data, and the like can be downloaded from the server computer 37 into the RAM 25 or the RAM 21. An electronic musical instrument serving as a client is connected to a server computer 37 via the communication interface 26 and the communication network 36.
A command for requesting the download of the control program, performance data, and the like is transmitted to. Server computer 37
Receives the command, distributes the requested control program and performance data to the electronic musical instrument via the communication network 36, and the electronic musical instrument receives the control program and performance data and the like via the communication interface 26. Then, the data is stored in the external storage device 25 or the RAM 21 or the like, whereby the download is completed.

FIG. 6 is a flowchart showing the processing performed by the CPU. The song data change mode is started in SA1. The song data to be changed in SA2 is selected from a floppy disk or the like.

In step S1, the selected song data is copied to an edit buffer in the RAM. For example, when the selected song data is stored on a floppy disk or the like, the selected song data is copied from the floppy disk or the like to the RAM.

In step S2, a track to be changed in the song data is selected according to a user's instruction. For example, one track is selected from the first track to the n-th track.

In step S3, the initial setting data in the performance data of the selected track is displayed on the display screen.
The user can check the contents of the initial setting data.

The process S10 includes steps S4 to S9 and is a process for actually changing performance data. Less than,
Each step will be described.

In step S4, a parameter to be changed in the initial setting data is selected according to a user's instruction.
For example, on the display screen, the cursor is moved to the position of the parameter that the user wants to change.

In step S5, the selected parameter is changed according to a user's instruction. For example, the volume 50 of the initial setting data is changed to the volume 80. The user can specify a parameter type (for example, volume) and a parameter value (for example, 50 before change and 80 after change). Further, the user can select the change modes 1 to 4.

In step S6, parameters of the same type as the above parameters are sequentially searched from the beginning of the actual performance data. For example, when searching for a MIDI event of a volume change, an event of control number # 7 may be searched.

In step S7, it is checked whether or not parameters of the same type as the above-mentioned parameters exist in the actual performance data. If there is, go to step S8,
The searched parameters are changed according to the change mode selected above.

In step S9, parameters of the same type as the above-mentioned parameters are sequentially searched from the next data changed in the actual performance data. Thereafter, the process returns to step S7, and the above processing is repeated. The above processing is repeated until the end of the actual performance data, and thereafter, the process proceeds to step S11.

In step S11, the changed data is confirmed. For example, the user can confirm the changed data by displaying the changed performance data on the display screen or generating a sound based on the changed performance data.

In step S12, it is checked whether or not the user has instructed to save the changed performance data. If storage is instructed, the process proceeds to step S13 to rewrite data. For example, the changed performance data in the RAM is copied to a floppy disk. After that, the process ends. If storage is not instructed, the process ends without rewriting the data.

Although the case where the song data is copied from the floppy disk or the like to the edit buffer in step S1 has been described, the performance data on the floppy disk or the like may be directly rewritten without using the edit buffer.

According to this embodiment, the change can be made for the entire performance data only by the user instructing the change of the initial setting data. Even if the user has little knowledge of the performance data and misunderstands that changing the initial setting data is valid for the entire performance data,
The performance data can be changed according to the user's intention.

In this embodiment, one parameter is changed by one operation, but a plurality of parameters may be changed simultaneously.

By selecting a change mode, the user can change the performance data according to his / her preference or performance environment. Furthermore, when a general performance data editing function is used, simple changes such as changing from one value to another value are possible, but the values to be changed are scattered in the performance data. Complex changes, such as the user finding and changing all of the values, are difficult. The performance data changing device according to the present embodiment can perform a complicated change by a simple change operation by the user.

It should be noted that the initial setting data is not limited to the data before the note-on event which appears first in the performance data. The parameter value that appears at the beginning of the actual performance data may be used as the initial setting data for each parameter.

Further, the initial setting data is not limited to the data included in the performance data as in the present embodiment, but may be located in an area different from the performance data, for example, after the performance data.

The present embodiment is not limited to the case where the volume is changed, and other events or parameters can be changed. The sound volume is such that the numerical value can change continuously, but is not limited to changing an event or a parameter of such a property. The present invention can also be applied when changing the tone number (program change). Since the tone number has no significance in the size of the tone number, it has a different characteristic from the volume. For tone number, change mode 3
It is not preferable to apply (FIG. 3) and change mode 4 (FIG. 4). When the timbre number in the initial setting data is changed from 1 to 2, the timbre number 1 in the actual performance data is searched, and all the timbre numbers 1 can be changed to the timbre number 2. The other tone colors need not be changed.

Alternatively, all other tone color numbers may be changed to tone color number 2 or all tone color numbers may be deleted.

The performance data changing device according to the present embodiment is not limited to the electronic musical instrument, but may be a personal computer and application software. The application software may be stored in a storage medium such as a magnetic disk, an optical disk, or a semiconductor memory and supplied to a personal computer, or may be supplied via a network.

The present performance data changing device is not limited to the case where it is incorporated in a sound source device or an electronic musical instrument, but each device is a separate device, and each device is communicated using communication means such as MIDI or various networks. A connection may be used. The present performance data changing device may be used when editing performance data with a karaoke device or the like. Further, the present invention can be applied not only to keyboard instruments but also to stringed instrument types, wind instrument types, percussion instrument types, and the like. The present invention may be applied to an apparatus for recording or reproducing performance data of an automatic performance piano.

The format of the performance data is, in addition to the standard MIDI file, the time at which the performance event occurred.
"Event + relative time", expressed as the time from the previous event, "event + absolute time", which indicates the performance event occurrence time as the absolute time in the song or bar, the pitch and note length or rest of the note "Pitch (rest) + note length", which represents performance data with the rest length, reserves a memory area for each minimum resolution of performance, and stores performance events in the memory area corresponding to the time when the performance event occurs. A format such as a stored “solid method” may be used.

Methods for changing the tempo of the automatic performance include a method of changing the cycle of the tempo clock, a method of correcting the value of the timing data while keeping the cycle of the tempo clock, and a method of counting the timing data in one process. May be changed.

The song data may be in a format in which data of a plurality of channels are mixed, or in a format in which data of each channel is separated for each track.

The present invention has been described in connection with the preferred embodiments.
The present invention is not limited to these. For example, it will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.

[0076]

As described above, according to the present invention,
By simply instructing the change of the initial setting data, the change instruction can be made effective throughout the performance data, so that the user can change the performance data by a simple operation.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an operation in a change mode 1;

FIG. 2 is a diagram for explaining an operation in a change mode 2;

FIG. 3 is a diagram for explaining an operation in a change mode 3;

FIG. 4 is a diagram for explaining an operation in a change mode 4;

FIG. 5 is a diagram showing a hardware configuration of an electronic musical instrument including a performance data changing device according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating a process performed by a CPU.

FIG. 7 is a diagram showing a configuration of song data.

[Explanation of symbols]

1,51,61,71,81 Performance data, 2,5
2, 62, 72, 82 initial setting data, 3, 53,
63, 73, 83 Actual performance data, 4, 54, 6
4,74,84 song data, 21 RAM,
22 ROM, 23 CPU, 24 timer, 25 external storage device, 26 interface, 27 keyboard, 28 keyboard detection circuit, 2
9 switch, 30 switch detection circuit, 31
Display circuit, 32 sound source circuit, 33 effect circuit, 34 sound system, 35 bus,
36 communication network, 37 server computer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeki Ishii 10-1 Nakazawacho, Hamamatsu-shi, Shizuoka Yamaha Corporation

Claims (3)

[Claims] 1. An apparatus for changing performance data comprising initial setting data and actual performance data, comprising: change instructing means for instructing a change in data in the initial setting data; A performance data changing apparatus, comprising: a search means for searching data of actual performance data from the actual performance data; and a change means for changing or deleting the searched data according to the instructed change. 2. A recording medium for a program for changing performance data comprising initial setting data and actual performance data, comprising: a) a procedure for instructing a change in data in the initial setting data; and b) a procedure for instructing the change in the data. A program for causing a computer to execute a procedure of retrieving data of the same type as the retrieved data from the actual performance data; and c) a procedure of changing or erasing the retrieved data in accordance with the instructed change. The recorded media. 3. A method for changing performance data comprising initial setting data and actual performance data, comprising: a) a step of instructing a change in data in the initial setting data; and b) a data instructing the change. A performance data changing method including a step of searching the actual performance data for data of the same type; and c) changing or deleting the searched data according to the specified change.