JP3463547B2 - Performance data changing device, performance data changing method, and medium recording program - Google Patents

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 the value of performance data to a desired value.

[0002]

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

The song data 4 is automatic performance data for one piece of music, and has performance data 1 for tracks 1 to n. When song data 4 is recorded in the standard MIDI file format, performance data 1 is MI
It is expressed using the format of DI data. The MIDI data has setting data for setting tone colors, effects, etc. in addition to note on / off.

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 for playing the song,
For example, a tone color, a volume, an effect, or the like.

The performance data 1 is roughly divided into the above-mentioned initial setting data 2 and the following actual performance data 3. The actual performance data 3 is performance data other than the initial setting data 2, and is, for example, data after the note-on that appears at the beginning of the song.

The actual performance data 3 is composed of a set of intervals and events. The actual performance data 3 includes note on / off and setting data (volume change, etc.) effective only in a specific section.

To perform the automatic performance, first, the initial setting data 2 is read out, the tone color and the like are initialized, and then the actual performance data 3 is read out and the automatic performance including sounding and mute is performed. Performance data 1 ends with end data.

[0008]

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

However, since a beginner has little knowledge of performance data, it may be mistaken that if the initial setting data 2 is changed, 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 if the value is changed to 0, the volume can be increased from the beginning to the end of the song.

Actually, 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 thereafter the volume increases to 60 and 70. However, the performance data after the change has an initial volume of 80, and then the volume once becomes 6
It goes down to 0 and then goes up to 70. The feeling of the song changes before and after the change, and I feel a sense of discomfort.

An object of the present invention is to provide a performance data changing device, a performance data changing method, or a program recording medium for automatically changing the entire performance data by changing the initial setting data so as not to cause a feeling of strangeness.

[0012]

According to one aspect of the present invention, there is provided a device for changing performance data composed of initial setting data and actual performance data, the change instruction for changing data in the initial setting data. Means, searching means for searching the actual performance data for data of the same type as the data for which the change is instructed, and changing means for changing or erasing the searched data in accordance with the instructed change. An apparatus for changing performance data is provided.

By simply instructing to change the data in the initial setting data, the same kind of data as the instructing data in the actual performance data can be changed or erased according to the instructed change. That is, if the change of the initial setting data is instructed, the change instruction can be valid over the entire performance data.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A case where the performance data 1 shown in FIG. 7 is changed will be described as an example. The user can make desired changes to the entire performance data 1 (including the actual performance data 2) only by performing an operation to change the initial setting data 2 in the performance data 1.

The user may desire various changes in accordance with his or her preference or performance environment. For example, if the volume of the initial setting data is increased, it may be desired to increase the volume of the entire performance data 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, for example, one of the change modes 1 to 4 in FIGS. 1 to 4 is selected. The performance data changing device can make various changes to the performance data according to the mode selected by the user. The changes in the change modes 1 to 4 are shown in FIGS. 1 to 4, respectively.

FIG. 1 is a diagram for explaining the operation of 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 actual performance data 53 shown below is generated.

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

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

When the events of volume change 60 and volume change 70 in the real performance data are deleted, the interval 4
Is added to the previous interval 3 to combine them into one interval, and interval 7 is added to the previous interval 6
And add to combine into one interval. In addition to the above method, for example, either one of the two intervals may be erased, or both of them may be left.

FIG. 2 is a diagram for explaining the operation of 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 issued 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 to generate new real performance data 63 in response to the user's change instruction. Specifically, the performance data change device first identifies the type of event (for example, volume) that the user has instructed to change, and then identifies the same type of event as the event in the actual performance data.
Change all to the same value. For example, the events of volume change 60 and volume change 70 are both changed to volume change 80.

Since the same volume as the volume 80 in the initial setting data 62 is set in the actual performance data 63, 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 of 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 issued 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 real performance data 3 and generates new real performance data 73 in accordance with the above-mentioned change instruction from the user. Specifically, the performance data changing device first identifies the type of event (for example, volume) for which the user has instructed a change, and further checks the amount of change in the value for which the change is instructed. The amount of change is, for example, the volume 80-
The volume is 50 = + 30. Then, in the actual performance data, the values of events of the same type as the event are all changed by the same change amount. For example, volume change 60 and volume change 70 are volume change 90 (= 60 + 30), respectively.
And the volume is changed to 100 (= 70 + 30).

The data in the real 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 an amount designated by the user. That is, the volume of the performance data can be changed as a whole 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 may become smaller than zero. In that case, a limiter may be provided for the maximum value and 0. Further, when the change amount is too large and the image of the song changes, the change mode 4 described below is effective.

FIG. 4 is a diagram for explaining the operation of 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 issued 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 real performance data 3 to generate new real performance data 83 in accordance with the above-mentioned change instruction from the user. Specifically, the performance data changing device first identifies the type of event (for example, volume) for which a change is instructed by the user, and further checks the change magnification of the value for which the change is instructed. The change rate 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 change by the same change rate. For example, volume change 60
And volume change 70 are volume change 96 (= 60 ×), respectively.
1.6) and volume change 112 (= 70 × 1.6).

The data in the real 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 a magnification designated by the user. It is possible to change the volume of the performance data as a whole in a natural sense of hearing.

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.

A keyboard detection circuit 28, a switch detection circuit 30, a display circuit 31, a tone generator 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 to the bus 35.

The user can use the switch 29 to instruct 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 also 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 uses 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 is, for example, a floppy disk drive (FDD), a hard disk drive (HDD), a magneto-optical disk (MO) drive,
It is a CD-ROM (compact disc-read only memory) drive or the like.

The RAM 21 is a flag or buffer, M
It has a working area for the CPU 23 that stores IDI performance data and the like. The ROM 22 stores various parameters and control programs, or a performance data changing program in this embodiment. 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 on the interrupt processing timing.
Interface 26 is a MIDI interface or other interface for communication networks.

The performance data before the change is recorded in the external recording device 2.
5, RAM 21, or ROM 22. The changed performance data is written in 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 also generates musical tone parameters and effect parameters in accordance with the note-on signal generated by the keyboard detection circuit 28 and the switch signal generated by the switch detection circuit 30, and the tone generator circuit 32 and the effect circuit, respectively. It can also be supplied to the circuit 33.

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

The tone generator circuit 32 uses a waveform memory system,
The FM system, the physical model system, the harmonic synthesis system, the formant synthesis system, the VCO + VCF + VCA analog synthesizer system, or the like may be used.

Further, the tone generator circuit 32 is not limited to one configured by using dedicated hardware, but may be configured by using a DSP + micro program or a program of CPU + software.

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

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

The control program, performance data, etc. can be stored in the CD-ROM. CD-ROM
Control programs and performance data can be copied from the hard disk to the hard disk. It is possible to easily perform new installation or version upgrade of the control program or the like.

The communication interface 26 can be connected 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 an external storage device such as an HDD. 25, or the RAM 21 or the like, a control program, performance data, or the like can be downloaded from the server computer 37. The electronic musical instrument as a client is a server computer 37 via the communication interface 26 and the communication network 36.
Send a command requesting to download the control program and performance data. Server computer 37
Receives this command, delivers the requested control program, performance data, etc. to the electronic musical instrument via the communication network 36, and the electronic musical instrument receives these control program, performance data, etc. via the communication interface 26. Then, the download is completed by accumulating in the external storage device 25, the RAM 21, or the like.

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

In step S1, the selected song data is copied to the edit buffer in the RAM. For example, when the selected song data is stored in the 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 in the song data to be changed is selected according to a user's instruction. For example, one track is selected from the first to nth tracks.

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

The process S10 includes processes S4 to S9 and is a process for actually changing the 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 the user's instruction.
For example, on the display screen, the user moves the cursor to the position of the parameter to be changed.

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 the type of the parameter (for example, volume) and the value of the parameter (for example, 50 before the change and 80 after the 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 volume change, an event of control number # 7 may be searched.

In step S7, it is checked whether or not a parameter of the same type as the above-mentioned parameter exists in the actual performance data. If there is, go to step S8,
Modify the retrieved parameters according to the modification mode selected above.

In step S9, a parameter of the same type as the parameter is sequentially searched from the next data changed in the actual performance data. Then, the process returns to step S7 and the above process is repeated. The above process is repeated until the end of the actual performance data, and then 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 by producing 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. When the saving is instructed, the process proceeds to step S13 and the data is rewritten. For example, the changed performance data in the RAM is copied to the floppy disk. Then, the process ends. If the storage is not instructed, the process is terminated 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 of the floppy disk or the like may be directly rewritten without using the edit buffer.

According to the present embodiment, the user can change the initial setting data, and the change can be performed on the entire performance data. Even if the user has little knowledge of performance data and misunderstands that the change of the initial setting data is effective for the entire performance data,
The performance data can be changed according to the user's intention.

Further, in this embodiment, one parameter is changed by one operation, but plural parameters may be changed simultaneously.

By selecting the change mode, the user can change the performance data in accordance with his or her preference or performance environment. Furthermore, if you use the general performance data editing function, you can make simple changes such as changing from one value to another, but the values you want to change are scattered in the performance data. , It is difficult for a user to find out all the values and change them. The performance data changing apparatus according to the present embodiment can make a complicated change by a simple change operation by the user.

The initial setting data is not limited to the data before the note-on event appearing at the beginning of the performance data. The parameter value appearing 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 being included in the performance data as in the present embodiment, but may be in an area different from the performance data, for example, behind the performance data.

The present embodiment is not limited to the case of changing the volume, but other events or parameters can be changed. The sound volume is such that the numerical value can change continuously, but is not limited to the case of changing an event or parameter of such a property. It can also be applied when changing the tone number (program change). The timbre number has no meaning in the size of the number, and therefore has a different character from the volume. Change mode 3 for tone numbers
It is not desirable to apply (FIG. 3) and change mode 4 (FIG. 4). When the tone color number in the initial setting data is changed from 1 to 2, the tone color number 1 in the actual performance data can be searched and all the tone color numbers 1 can be changed to the tone color number 2. The other tone color numbers do not have to 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 this 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.

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

In addition to the standard MIDI file, the format of the performance data is 1 when the occurrence time of the performance event is set.
"Event + relative time" expressed as the time from the previous event, "Event + absolute time" expressed as the absolute time of the performance event in the song or bar, the pitch and note length of the note, or a rest "Pitch (rest) + note length", which represents performance data in terms of rest length, a memory area is reserved for each minimum resolution of the performance, and the performance event is stored in the memory area corresponding to the time when the performance event occurs. A stored format such as "solid method" may be used.

The method of changing the tempo of automatic performance is to change the cycle of the tempo clock, to correct the value of the timing data while keeping the cycle of the tempo clock, or to count the timing data in one processing. The value to be changed may be changed.

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

The present invention has been described above with reference to the 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 only instructing the change of the initial setting data, the change instruction can be made effective over the entire performance data, so that the user can change the performance data by a simple operation.

[Brief description of 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 showing processing performed by a CPU.

FIG. 7 is a diagram showing a structure 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 switches, 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

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Ishii 10-1 Nakazawa-cho, Hamamatsu-shi, Shizuoka Yamaha Corporation (56) References JP-A-3-196191 (JP, A) JP-A-4-1961 274498 (JP, A) JP-A-61-222082 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G10H 1/00 101 -102

Claims (6)

(57) [Claims] 1. A device for changing performance data composed of initial setting data and actual performance data, the change instructing means for instructing a change of data in the initial setting data, and the same type as the data instructed to change. A performance data changing device having a searching means for searching the actual performance data for the above data and a changing means for changing or erasing the searched data according to the instructed change. 2. The changing means calculates a change amount of the retrieved data according to a change amount of the data instructed to change, and changes the retrieved data based on the calculated change amount. The performance data changing device according to claim 1. 3. The change unit calculates the change amount of the retrieved data so that the change amount of the retrieved data is the same as the change amount of the data instructed to be changed. Performance data change device. 4. The change means calculates the change amount of the retrieved data so that the change magnification of the retrieved data is the same as the change magnification of the data instructed to be altered. Performance data change device. 5. A recording medium of a program for changing performance data composed of initial setting data and actual performance data, comprising: a) a procedure for instructing a change of data in the initial setting data; and b) instructing the change. A program for causing a computer to execute a procedure for retrieving the same kind of data as the retrieved data from the actual performance data, and c) a procedure for changing or erasing the retrieved data according to the instructed change. Recorded medium. 6. A method for changing performance data composed of initial setting data and actual performance data, comprising the steps of: a) instructing a change in the data in the initial setting data; and b) instructing the change. A performance data changing method including a step of retrieving the same type of data from actual performance data, and c) a step of changing or erasing the retrieved data according to the instructed change.