JP3480327B2 - Performance data editing apparatus and storage medium therefor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance data editing apparatus for connecting a plurality of separated musical tones to edit tones corresponding to a so-called "slur playing style", and a recording medium therefor.

[0002]

2. Description of the Related Art The "slur playing style" is a playing style in which two or more pitches are connected to produce a sound. In this playing style, no attack sound at the time of sounding exists for sounding pitches other than the beginning. In the case of creating performance data corresponding to such a slur playing style, conventionally, the user had to manually edit and create the performance data using a numeric keypad or the like. Therefore, the editing work of this kind of performance data is troublesome, and the editing takes time. Further, it is difficult for a beginner to create performance data corresponding to the slur playing style, and it is difficult to obtain a good editing result.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in consideration of such a problem, and the pitch data of the rear of the two pitch data consecutive in the original performance data is set to the front. By editing the performance data so that it is represented by the pitch data for the pitch data of, the performance data editing device and the performance data editing device capable of easily editing a part of the original performance data into the performance data corresponding to the slur playing style are provided. The purpose is to provide a recording medium.

[0004]

Therefore, according to the present invention, a time range to be edited is designated (S1) for performance data in which a plurality of pitch data are sequentially arranged in time series. At least two pitch data consecutive in the specified time range are detected (S3), and the pitch change with respect to the value of the front pitch data is detected based on the detected pitch data.
A plurality of pitch data, which are represented by the conversion amount and sequentially change toward the value of the rear pitch data, are calculated (S9), and the rear pitch data is expressed using the calculated plurality of pitch data. To edit the performance data (S1
1, S14) solves this problem.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[Hardware Configuration] Referring to FIG.
Here, a hardware configuration of a performance data editing apparatus according to an embodiment of the present invention is shown. In this example, the performance data editing device is a central processing unit [CPU: central
processing unit] 1, timer 2, read-only memory [R
OM: read only memory] 3, random access memory [RAM: random access memory] 4, detection circuit 5, display circuit 6, external storage device 7, tone generator circuit 8, effect circuit 9,
A MIDI (Musical Instrument Digital Interface) interface [I / F] 10 and a communication interface 11 are provided, and these devices are connected to each other via a bus 12.

The detection circuit 5 is connected to a manipulator device 14 including a control panel and a mouse, the display circuit 6 is connected to a display 15 such as a liquid crystal display, and the effect circuit 9 is connected to the display circuit 6.
A sound system 16 is connected so that a tone based on the performance data can be played from the tone generator circuit 8. The system of the present invention is connected to another external musical sound information processing device such as a MIDI device via the MIDI interface 10 and can send and receive various musical sound data to and from these devices as necessary. Further, the communication interface 11 for performing a predetermined format conversion is a LAN
[Local Area Network], Internet [Interne
t], and is communicably connected to a server computer or the like via a communication network 17 such as a telephone line.

A CPU 1 for controlling the entire system is provided with a timer 2 for generating a clock signal used for interrupt processing, tempo clock, etc., and performs various controls according to a predetermined program. Perform processing functions for editing centrally. The ROM 3 stores a predetermined control program for controlling this system, and these control programs include a processing program relating to performance data editing. RA
The M4 functions as a work area for performing these processes, and includes various buffers for storing necessary performance data and parameters. These buffers store glide time [gT: glide Time], start pitch (FTone), target pitch (BTone), pitch data generation timing (t), pitch change count (n), etc., which will be described later. It

The detection circuit 5 detects the input operation information from the operator device 14, respectively. The manipulator device 14 includes an operation panel provided with a data edit mode changeover switch, a range setting switch, a glide time (gT) setting switch, an edit start switch, and the like, and a mouse having a function of these switches. The display circuit 6 is supplied with necessary display information based on the performance data editing process, and performs a corresponding display on the screen of the display 15. When a keyboard having operators such as character keys and numeral keys is used for the operation panel of the operator device 14, the function of the switch can be assigned to a predetermined key, and the display screen of the display 15 can be displayed by a mouse. It is also possible to perform an input operation equivalent to the function of the above switch by designating any position above and clicking the mouse. Therefore, various instructions,
Input operations such as selection and data input can be performed.

The tone generator circuit 8 and the effect circuit 9 can listen to corresponding musical tones via the sound system 16 by supplying the original performance data before editing and the performance data during or after editing. . The sound source circuit 8 and the sound system 16 are also
The performance data in the system or the performance data from the MIDI device may be reproduced.

This system can be implemented in a form in which application software is added to a personal computer, and has the same configuration as a personal computer system with a built-in sound source or a system in which a sound source and a display are added to a sequencer with a hard disk. it can. Further, as the manipulator device 14, a keyboard, a pedal, an operation panel including various operation switches, or the like can be used.

[Recording Medium] As described above, the control program stored in the ROM 3 includes a processing program relating to performance data editing according to the present invention. Such a processing program is stored in the external storage as application software. It can be stored in the device 7 and supplied to the system, or can be supplied via the network 17.

For example, in the external storage device 7, a hard disk drive [HDD: Hard Disk Drive], a floppy disk drive [FDD: Floppy Disk Drive],
A CD-ROM [Compact Disk Read Only Memory] drive, a magneto-optical [MO: Magneto-Optical] disk drive, a DVD [Digital Video Disk] type digital multipurpose disk drive, etc. One or more storage devices are used accordingly. Therefore, an example of supplying a control program including various processing programs using the HDD will be described below.

[Example of Utilizing HDD or CD-ROM Drive] As is well known, the HDD is a storage device for storing a control program and various data. For example,
If the control program is not stored in the ROM 3, the control program is stored in the hard disk of the HDD, and the program is read into the RAM 4 to perform the same operation as when the control program is stored in the ROM 3. Can be performed by the CPU 1. By doing so, it is possible to easily add the control program, upgrade the version, and the like.

On the other hand, the CD-ROM drive is a device for reading out a control program and various data stored in a CD-ROM which is a portable recording medium. Therefore, by storing the control program and various data in this CD-ROM and storing the control program and various data read by this device on the hard disk in the HDD, the CPU 1 performs the same operation. It can be made possible. In this way, new installation or version upgrade of the control program can be easily performed.

As the external storage device 7, as described above, in addition to the CD-ROM drive, a removable recording medium such as an FDD or MO drive is used, and various other forms are used. Since there is a device for utilizing the medium, one or a plurality of devices selected from these devices as necessary may be provided in addition to the HDD. In this case, if the attached recording medium is a writable one such as a floppy disk [FD], the data obtained by the system can be stored in this recording medium and taken out to the outside.

[Example of Downloading Program Using Network] The communication interface 11 can be used to download the control program and various data from the server computer when the control program is not stored in the ROM 3, for example. it can. In this case, the system of FIG. 1, which is a client, transmits a command requesting the download of the control program and various data to the server computer via the communication interface 11 and the communication network 17. Upon receiving this command, the server computer delivers the requested program or data to the communication network 17. Therefore, these programs and data are received by this system via the communication interface 11 and stored in the hard disk in the HDD, whereby the download can be completed.

[Concept of Data Editing] FIGS. 2 and 3
Exemplarily shows the concept of performance data editing according to the present invention. 2 and 3, (a) shows an example of original performance data to be edited, and (b) shows an example of edited performance data obtained as a result of editing the original performance data by the data editing function of the present invention. Indicates. In this example,
In the original performance data, as shown in FIG. 3A, three musical tones [notes] having pitches D3, C3 and C # 3 are key-on timings T1, T2 and T3 within a time range designated by the user.
To gate time [pronunciation time length] GT1, GT2, GT
It is shown that the sound is sequentially pronounced for the time designated by 3 and the content of such data is shown in FIG. 2 (a) for each note.
It is expressed as.

In this embodiment, it is assumed that the eighth note length corresponds to 48 clock signals of the clock signal generated by the timer 2 in a predetermined cycle, and the key-on timing T1,
Each timing data t such as T2 and T3 represents the time from the beginning of the music to the target event occurrence time in the number of clocks, each time length data such as the gate times GT1, GT2 and GT3 also represents in the number of clocks, and so on. And

According to the data editing of the present invention, FIG.
The original performance data as shown in (a) is converted into data as shown in FIG. 2 (b) having the total gate time nGT1 with reference to the pitch Atone (D3) of the first musical tone [leading musical tone] in the specified time range. It That is, this total gate time n
GT1 is a time point (= T3 + GT3: gate time end point (= T3 + GT3:
The tone generation time up to the key-off timing), and the pitch of the leading musical tone [leading pitch] following the data of the total gate time nGT1 and a predetermined timing signal t (T2, t1, t2, ..., T6). ] Pitch data PDm represented by the amount of pitch change relative to Atone (D3)
[M = 1, 2, 3, ...] Are sequentially inserted.

The pitch change of the edited performance data obtained by such data conversion is schematically illustrated in FIG. 3 (b). In this example, in the first step Sg1 of the pitch conversion, the pitch conversion is started at the key-on timing T2 of the second musical sound (C3), and the timing t = T at every constant time interval τo.
At 1, t1, t2 and t3, the pitch is sequentially changed from the first pitch Atone = D3 by pitch data PD1, PD2, PD3 and PD4, and the second pitch C3 = D3 +.
At the time point t = t3 when reaching PD4, this pitch conversion is completed, and thereafter, the reached second pitch C3 is maintained. And
In the second step Sg2, pitch conversion is performed again from the key-on timing T3 of the final tone (C # 3) in the same manner as in the first step Sg1, and after the time point t = t6 when the final pitch C # 3 is reached, the total gate time nGT1 is reached. Until final pitch C # 3 = D
Continue 3 + PD8. Therefore, the original performance data of FIG. 3A is such that the pitch smoothly changes from the beginning pitch C3 to the second pitch D3 to the final pitch C # 3 as shown in FIG. 3B. And the edited performance data corresponding to the slur playing style can be obtained.

FIG. 4 shows the pitch change of the edited performance data in more detail in order to more specifically explain the data editing according to the present invention, and FIG.
It is a partial detailed view of the editing part (1st step Sg1) corresponding to (a). “GT” in the figure represents a pitch conversion period [expressed in clocks] from the start time (T2) of the pitch conversion to the completion time (t3) of the pitch conversion, and is called “glide time”. To do. This glide time gT is
It can be set by the user operating the gT setting switch or the like of the manipulator device 14.

Also, the reference pitch A Tone (D
In this embodiment, the pitch data PD, which is the data representing the pitch change amount for 3), is inserted at the constant time interval τo as described above. That is, the timing T1-t1 during which the pitch data PD is inserted, the time t1-t2, and the time t.
The time interval τo between 2 and t3 is constant, for example, 1
The interval is 0 clock. Therefore, FIG. 4A shows a case where the glide time gT is set to a multiple of the time interval value τo (10 clocks).

In this embodiment, the value of the pitch data PD is set so that the pitch amount pd changing per unit time (for example, one clock) is constant. Generally speaking, in a certain pitch conversion step Sgi (i = 1, 2, ...), the starting pitch FTone (i) at the start point [immediately before] and the target to be reached after completing the pitch conversion Pitch BTone
Pitch difference between (i) and FTone (i) -BTone
In contrast to (i), the pitch amount pd (i) that changes per unit time (1 clock) is pd (i) = [FTone (i) −BTone (i)] ÷ gT ... [1] Represented.

Therefore, the insertion time interval of the pitch data PD is set to τo (clock), and the steps Sg1 to Sgi-
In step Sg, the number of pitch data insertions in 1 is k.
If the initial pitch data value at i is PD (io),
The value PDm of the pitch data inserted in the mth position in total from the first step Sg1, that is, the value PDm of the pitch data inserted in the nth position in the step Sgi with m−k = n is PDm = PD (io) + It can be calculated by pd (i) × τo × (m−k) = PD (io) + pd (i) × τo × n ... [2]. Here, if PDn (i) = pd (i) × τo × n [3], PDn (i) is the leading pitch FTo of the step Sgi.
Since the value of the pitch data for ne (i) is represented, the equation [2] can be further rewritten as PDm = PD (io) + PDn (i) ... [2 ′].

As a concrete example, as shown in FIG. 4, in the first stage Sg1 starting from the key-on timing T2 of the second musical tone (C3) of the original performance data, i = 1, k = 0, and the starting pitch FTone. (1) is the head pitch A Tone = D3,
Since the target pitch FTone (1) is C3, the formula [1]
Then, pd (1) is calculated from [[pd (1) is negative in the embodiment]], the pitch data initial value PD (1o) = 0 is set, and this is applied to equations [2 ′] to [3] to obtain the pitch The value PDm of the data PD = PDn (1) is obtained.

Therefore, in the case of the embodiment in which the pitch data PD is inserted at an interval of τo = 10 clocks, PD1 = PD1 (1) = pd (1) × 10, PD2 = PD2 (1) = pd (1) × 10 × 2, ..., PD4 = PD4 (1) = pd (1) × 10 × 4.

Next, the final tone (C # 3) of the original performance data
In the second stage Sg2 starting from the key-on timing T3 of i, i = 2 and k = 4, and the starting pitch FTone
New pitch difference FTone (2) -BTone (2) between (2) = C3 and target pitch BTone (2) = C # 3
Thus, the expression [1]: pd (2) = [FTone (2) −
From BTone (2)] ÷ gT, a new pitch amount pd (2) per unit time (1 clock) [pd in the embodiment
(2) is positive] and pitch data initial value PD (20)
By applying equations [2 ′] and [3] with = PD4, it is possible to obtain the values PDm and PDn (2) of the pitch data PD with respect to the starting pitch Atone and the starting pitch FTone (2).

Therefore, in the case of the above embodiment, PD5 = PD4 + PD1 (2), PD1 (2) = pd (2) × 10, PD6 = PD4 + PD2 (2), PD2 (2) = pd (2) × 10 × 2, ... PD8 = PD4 + PD4 (2), PD4 (2) = pd (2) × 10 × 4 Becomes

When four or more tones are consecutive within the designated time range to be edited, the same method as above is repeatedly applied at three or more stages corresponding to the number of consecutive tones.

[Error correction] The glide time gT
Is not an integral multiple of the constant time interval value (10 clocks) as shown in FIG. 4A and is indivisible by this time interval value, as shown by the broken line in FIG. 4B, In the above calculation method, the target pitch BTone (1) = C3 is not reached at the ending timing tge of the glide time gT.

In this case, as shown by the thick line in FIG. 4 (b), the target pitch BTone at the end timing tge.
Error correction is performed assuming that (1) = C3 has been reached, and the edited performance data corresponds to end timing tge and target pitch BTone (1) = C3 as timing and pitch data due to such error correction. Be sure to insert the final pitch data value PDe. Such error correction and data insertion are, of course, similarly applied to the second step Sg2 and thereafter. Through such processing, it is possible to create data that is more faithful to the user's intention.

[Change in Sound Generation Volume] FIG. 5 shows a sound volume change pattern of musical tones generated by the performance data before and after data editing, corresponding to the pitch change in FIG. In the original performance data, as shown in FIG. 5A, the attack tone AT is generated every time the pitch changes, that is, every time when the new pitch is generated at the key-on timings T1, T2, T3.

On the other hand, when the edited performance data is used to generate sound from the sound system 16 via the tone generator circuit 8, as shown in FIG. 5B, the total gate time nGT1 in the edited performance data is used. Then, the attack sound AT is generated only when the first pitch starts to be sounded, and the attack sound AT is not generated even if the pitch changes during the sound generation, so that the volume change suitable for the slur playing style can be obtained.

[Data Editing Process] FIG. 6 shows a data editing process flow according to an embodiment of the present invention. In a main process (not shown), when the user operates the data edit mode changeover switch of the operation device 14, when this switch operation is detected and an instruction to shift to the "data edit mode" is issued, this data edit process flow is activated. . In the main process, there are various modes in addition to the data edit mode. For example, when the "playback mode" is instructed by the operation of the playback mode selection switch, the playback mode is entered. The performance data and the performance data recorded in advance are automatically played.
The processing in each step in the data edit mode will be described below.

[Steps S1 to S7: Initial Setting] First,
In step S1, a designated time range to be edited in the original performance data and a glide time gT representing a time at which pitch conversion is performed are set. These parameters are
It can be arbitrarily set by the user in clock units, is set by operating the range setting switch and the gT setting switch of the manipulator device 14, and is stored in the gT buffer in the RAM 4. Next, when it is confirmed that these settings are completed in step S2, it is determined in step S3 whether or not there are a plurality of key-on events within the designated time range.

If it is determined in step S3 that there is only one key-on event within the specified time range, the data editing is immediately terminated and this data editing process is not performed. On the other hand, if there are multiple key-on events, step S
The process proceeds to 4, S5, S6, and further, various parameters required for data editing processing are calculated and set.

In this key-on number determination step S3, the number of key-on events within the designated time range is automatically detected, and it is automatically determined whether or not the data editing process is performed according to the detected number of events. When setting the time range, the user can omit the work of confirming whether or not a plurality of key-on events are present within the specified time range, and therefore the user's work can be facilitated.

In step S4, the total gate time nGT1 corresponding to the leading pitch Atone (D3 in the example of FIG. 4) within the specified time range is edited to obtain the performance data contents [FIG. 2].
The gate time corresponding to the leading pitch in (b)] is set as the value of the total gate time nGT1. In step S5, as the starting pitch FTone, which is the pitch at the time when the pitch change starts [pitch conversion start], the beginning pitch Atone (the same pitch,
The value of D3) is set, and "1" is set as the initial value of the number n of pitch data PD which is sequentially inserted at the current pitch conversion stage. That is, FTo in the RAM 4
The ne pitch buffer stores a head pitch value Atone, and an initial value "1" is set in an n buffer used as a counter for counting the number n of pitch data at the current pitch conversion stage.

In step S6, B in the RAM 4 is
Next tone pitch within the specified time range (same as C
3) is stored and this tone pitch is set as a target tone pitch BTone, while the above-mentioned Pitch (same as C3)
The tone generation timing value (T2) is set as the initial value of the tone generation timing value t in the pitch conversion stage. The tone timing value t will be sequentially recorded as performance data contents [see FIG. 2B] together with the pitch data value PDm corresponding to the pitch data PD at that time [see step S11]. Then, in the next step S7, information on the next pitch (same as C3) is deleted from the performance data contents.

[Steps S8 to S12: Calculation and Recording of Pitch Data] In step S8, the start pitch FTone is set.
Difference between target pitch FTone and target pitch FTone-FTon
Using e and glide time gT, equation [1], that is, p
The pitch change amount pd per clock is calculated from d = (BTone−FTone) ÷ gT, and in step S9, the pitch change amount pd per clock, the pitch data number n, and the pitch data sounding interval τo value “10”. Using
The pitch data PDn for the starting pitch FTone is calculated from the equation [3], that is, PDn = pd × n × 10.

At step S10, the pitch FTone + corresponding to the pitch data PDn calculated at step S9.
It is determined whether PDn exceeds the target pitch BTone. If it does not exceed, it proceeds to step S11. In step S11, the tone generation timing value t set or updated in steps S6 and S12 is recorded as performance data contents, and the pitch data PD calculated in step S9 is recorded.
Based on n, the pitch data value PDm for the head pitch Atone is calculated from the equation [2 ′] and recorded as the performance data content, and the process proceeds to step S12.

In step S12, the value "10" (clock) of the tone generation interval τo is added to the tone generation timing value t of the t buffer, and the value "1" is added to the pitch data number n of the n buffer. Update the values t and n. Then, returning to step S9, the next pitch data PDn is calculated, and the calculation and recording of the pitch data PDn by steps S11, S12, and S9 are sequentially performed until FTone + PDn exceeds BTone.

[Steps S13 to S16: End and Reset of Pitch Conversion] If it is determined in step S10 that the value of FTone + PDn representing the currently edited pitch exceeds the value of the target pitch BTone, that is, When the pitch generated as a result of the pitch change reaches the pitch at which the pitch change should be ended, the process proceeds to steps S13, S14 and S15. First, in step S13, the tone generation timing value t of the t buffer is set to the glide time gT, and the pitch data P is set.
The value of Dn is updated to the product of the pitch change amount pd per clock and the glide time gT. Next, step S1
In step 4, the updated glide time gT and pitch data PDn are recorded as performance data contents, and the process proceeds to step S15.

In step S15, it is determined whether or not a key-on event of the next pitch continues within the designated time range. If yes, the process proceeds to step S16.
Reset the parameters for the next pitch conversion stage. That is, in step S16, the target pitch BTone (C3 in the example of FIG. 3A) at the previous pitch conversion stage is set as a new start pitch FTone, and the pitch data number n is set to the initial value. Set "1" and then step S
Return to 6.

In step S6, as a parameter in the new pitch conversion step, the next pitch (C # 3) of the original performance data is reset to the target pitch BTone, and this pitch (C # 3) is reset. The sound generation timing of () is reset as the initial value of the sound generation timing value t. And
In the next step S7, information on the next pitch (same as C # 3) is deleted from the performance data contents, and then step S9.
At steps S13 to S12, new pitch data PDn is sequentially obtained by the same method as described above, and the corresponding pitch data value PDm is recorded together with the timing value t.
After 14, the new pitch conversion stage is completed.

The processing of each step is repeated as described above, and when it is determined in step S15 that there is no subsequent key-on event within the designated time range, the data editing processing is ended.

[When the next key-on timing is reached during pitch change] FIG. 7 is for explaining the data editing method when the key-on timing of the next musical tone is reached during the pitch conversion determined by the glide time gT. FIG. For example, as shown in FIG. 7A, the second pitch C3 of the original performance data
And when the time interval between the sounding timings T2 and T3 of the next pitch E3 is shorter than the glide time gT, FIG.
As indicated by a broken line in (b), the target pitch BTone = C3 is not reached even at the sounding timing T3 of the next pitch E3.

In this way, when the tone generation timing (T3) of the next key-on event is reached during the pitch change,
As indicated by the thick line in FIG. 7B, the process immediately shifts to the next pitch conversion stage from that time, that is, the next sound generation timing (T3), and the next pitch (E3) is changed as the target pitch BTone. To start.

[Various Embodiments] Although the performance data does not include volume information in the above-described embodiments, velocity data may be included together with the key-on data. Further, at that time, the value of the velocity data may be changed corresponding to the pitch change.

Further, in the above-mentioned example, as the data format of the performance data, the data for one sound is constituted by the combination of the sounding timing data, the key-on data and the gate time data, but the key-on data, the key-off data and the duration data are formed. The data for one pronunciation may be configured by a combination of. In that case, the gate time can be obtained from the duration data of the key-on data and the corresponding key-off data.

In the above example, the pitch change value itself is recorded as the pitch data PD, but the pitch bend data used in a normal SMF [Standard Midi File] may be recorded. .

When using pitch bend data,
The pitch change amount is calculated in consideration of the pitch bend range value designated by the user or fixed, and the pitch bend data based on the calculation result is used as the pitch data P of the performance data.
In addition to recording as D, the considered pitch bend range value is also stored in the performance data. Also, the pitch bend reset data is written at the beginning or end of the specified range so that the created pitch bend data does not affect the performance data outside the specified range.

Further, in the embodiment, the pitch change amount for every 10 clocks is recorded as the pitch data PD, but the interval of this recording timing is not limited to 10 clocks, and the recording timing value can be freely set by the user. May be set to.

Although the pitch change amount is linearly constant in the embodiment, it may be changed non-linearly every moment. In this case, the tendency of the pitch change amount may be tabulated and recorded in plural types, and the user may select and use a desired one from these tables. With such a method, it is possible to easily edit and create performance data corresponding to various slur playing styles.

Regarding the recording timing, similarly to the pitch change amount, the pitch data PD does not have to be recorded at regular time intervals. For example, a method of making the recording timing finer in a portion where the pitch change is drastic is possible. Can be taken.

[0057]

As described above, according to the present invention, a time range to be edited is designated for performance data in which a plurality of pitch data are sequentially arranged in time series,
When at least two pitch data that are continuous within this time range are detected, data editing is started, and a plurality of pitch data are calculated based on these pitch data. The pitch data is represented by the pitch change amount for each predetermined time with respect to the value of the front pitch data, and these pitch change amounts sequentially change toward the value of the rear pitch data. Since the data was edited to express the backward pitch data within the specified time range using, it is automatically connected so that multiple pitches within the range change smoothly in sequence, and it corresponds to the slur playing style. The edited performance data can be easily obtained even by a beginner.

[Brief description of drawings]

FIG. 1 is a diagram showing a hardware configuration of a performance data editing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram exemplarily showing performance data contents to show the concept of performance data editing according to the present invention. FIG. 2 (a) shows original performance data and FIG. 2 (b) shows editing. The post-performance data is shown respectively.

FIG. 3 is a diagram for explaining an outline of pitch conversion according to the present invention, and FIGS. 3 (a) and 3 (b) are FIG.
These correspond to (a) and (b), respectively.

FIG. 4 is a diagram for explaining the outline of the pitch conversion of the present invention in more detail. FIG. 4 (a) corresponds to the first half of FIG. 2 (b), and FIG. Is the glide time gT '
Shows a processing method when is not divisible by the time interval τo.

5A and 5B are diagrams for explaining changes in sounding volume due to editing of performance data according to the present invention. FIG. 5A shows original performance data and FIG. 5B shows edited performance data. Represent each.

FIG. 6 is a diagram showing a flowchart of a data editing process according to an embodiment of the present invention.

FIG. 7 shows an additional embodiment of the present invention, showing a processing method when the key-on timing of the next pitch is reached during the pitch change, and FIG. FIG. 7 (b) shows the edited data and the edited performance data, respectively.

[Explanation of symbols]

GT1, GT2, GT3 gate time, nGT1 total gate time, T1, T2, T3 key-on timing, gT, gT 'glide time, Sg1, Sg2 first and second (pitch conversion) stage, PD1, PD2, PD3, ... , PD8 Pitch data inserted at sounding timings T2, t1, t2, ..., T6.

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-6-130954 (JP, A) JP-A-63-291095 (JP, A) JP-A-62-135891 (JP, A) JP-A-4- 139498 (JP, A) JP-A-6-19471 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G10H 1/00 101-102 G10H 1/053

Claims (3)

(57) [Claims] 1. An editing range designating unit for designating a time range to be edited for performance data in which a plurality of pitch data are sequentially arranged in time series, and a time range designated by the editing range designating unit. Pitch data detecting means for detecting at least two pitch data consecutive within the pitch data, based on the pitch data detected by the pitch data detecting means, the pitch change amount with respect to the value of the front pitch data.
Pitch data calculating means for calculating a plurality of pitch data which are sequentially expressed and change toward the value of the rear pitch data, and the rear pitch data using the plurality of pitch data calculated by the pitch data calculating means. A performance data editing apparatus comprising pitch data editing means for editing so as to express. 2. Time length data for converting time length data corresponding to the foremost pitch data within the designated time range into total time length data obtained from time data of the pitch data within the time range. Each pitch data used for expressing the rear pitch data in the pitch data editing means is represented by a change amount with respect to the value of the foremost pitch data, and has a pronunciation timing.
2. The performance data editing apparatus according to claim 1, wherein the performance data editing apparatus is accompanied by timing data representing a ring . 3. A step of designating a time range to be edited with respect to performance data in which a plurality of pitch data are sequentially arranged in time series, and at least two pitches consecutive within the designated time range. detecting the data, based on the detected tone pitch data, sequentially changes toward the value of the backward tone pitch data is expressed in Lupi pitch change amount against the value <br/> forward tone pitch data A program for editing performance data, characterized in that a program including a step of calculating a plurality of pitch data and a step of editing the data so as to express the rear pitch data by using the plurality of pitch data is recorded. Medium.