JP2000056770A - Data generation device and record medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily realize roll performance changing in sound generation intervals. SOLUTION: A user is required to specify a start timing TS and an end timing TE of a roll performance section R, a step time FST corresponding to a sound generation interval directly after starting rolling (for instance 48), and a step time LST corresponding to a sound generation period immediately before ending rolling (for instance 12). In a roll data generation processing, the start timing TS is adopted as the sound generation timing at the time of starting rolling, and 'TS+FST' is adopted as the following sound generation timing t1, and 'FST-predetermined value (for instance 12)' is adopted as the following step time. Similarly, sound generation timings t2-t5 are determined. The sound generation timing t5 immediately before TE is determined so that a time interval up to TE coincides with LST. Roll data for automatic performance are created or roll sound generation is performed according to the sound generation timings TS, t1-t5 determined in such a manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data generating apparatus and a recording medium suitable for use in roll performance (continuous hit performance) of a drum or the like, and more particularly to a roll start based on a sounding interval immediately after a roll start specified by a user. By determining the successive sounding timing following the sounding timing of the time so as to be different from the sounding interval, it is possible to easily realize a roll performance in which the sounding interval changes.

[0002]

2. Description of the Related Art Conventionally, as an electronic musical instrument, percussion sounds such as a bass drum, a snare drum, a cymbal, etc. are assigned to a plurality of pad operators, respectively, so that a percussion instrument can be played according to the operation of the pad operators. Things are known.
In such an electronic musical instrument, a roll instruction switch and a sounding interval selection switch are provided, and when a desired sounding interval is selected by the sounding interval selection switch, for example, when a pad operator corresponding to a snare drum is turned on together with the roll instruction switch. The roll play of the snare drum is performed at a fixed sound generation interval related to the selection only while the pad operator is turned on.

[0003] On the other hand, as an automatic performance device capable of inputting performance data, a real-time input type and a step input type are known.

[0004]

According to the above-mentioned electronic musical instrument, the drum roll is performed at a fixed sounding interval, and the sounding interval changes during the roll playing as in the case of playing the drum as a natural musical instrument. Never. Therefore,
It was inevitable that the role playing would become monotonous.

On the other hand, it is possible to perform a drum roll performance using the above-described automatic performance device. However, in the real-time input type automatic performance device, since the actual drum roll performance is recorded and reproduced, it is not easy for an unskilled person to enjoy the drum roll performance. Further, in the step-input type automatic performance device, since data is input at each sounding timing, in the case of a roll performance, it is necessary to input data for many sounding timings, and the input operation is complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel data generating apparatus which can easily realize a roll performance in which a sound generation interval changes.

[0007]

A data generating apparatus according to the present invention comprises a designating means for designating a sounding interval immediately after a roll starts, and a sounding timing at the start of a roll based on the sounding interval designated by the designating means. By determining the successive sounding timing so as to be different from the sounding interval, a sounding timing at the start of the roll and a generating means for generating roll data indicating the sequential sounding timing following the sounding timing are provided. It is provided.

According to the configuration of the present invention, when the user designates a desired sounding interval by the designating means, the generating means generates a successive sounding timing following the sounding timing at the start of the roll based on the designated sounding interval. The sound generation interval is determined to be different from the sound generation interval, and roll data indicating the sound generation timing at the start of the roll and the subsequent sound generation timing is generated. By performing an automatic performance using the roll data relating to the generation or performing the roll pronunciation based on the roll pronunciation instruction operation in accordance with the roll data relating to the generation, it is possible to easily realize a roll performance in which the sounding interval changes. In addition, since the sequential sounding timing is determined based on the sounding interval specified by the user, the intention of the user can be reflected in the roll performance.

In the data generating apparatus according to the present invention,
The designating means can designate a roll end timing and a sounding period immediately before the roll end, while the generating means
The sounding timing immediately before the specified roll end timing such that the time interval between the roll end timing specified by the specifying means and the immediately preceding sounding timing matches the sounding period immediately before the roll end specified by the specifying means. May be determined. In this manner, the sound is generated at the sounding timing desired by the user immediately before the roll end timing desired by the user.

In the data generating apparatus according to the present invention, storage means for storing music data for automatic performance is provided, and a roll performance section is specified by the specification means for the music data stored in the storage means. The role data for automatic performance in such a performance section may be generated by the generation means and written into the storage means. This way,
Roll data for automatic performance can be easily and quickly obtained in a desired roll performance section.

In the data generating apparatus according to the present invention, there is provided an instruction means for instructing a roll sound for a predetermined percussion instrument sound such as a drum sound. May be performed in accordance with the sounding timing indicated by the roll data. With this configuration, a roll operation in which the sounding interval changes like a natural musical instrument can be performed by a simple operation of simply issuing a roll sounding instruction after designating a desired sounding interval.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A roll data generating method according to the present invention will be described with reference to FIGS.

In the roll data generating method according to the present invention, as shown in FIG. 1, a user previously specifies a desired roll performance section R for a desired music. FIG. 1 shows 4 /
Shows the flow of four beats of songs, the MS is playing start position, Mn is the start timing of the n bar, ME is a playback stop (end) position, B ₁ .about.B ₄ first to fourth beat , Respectively. n is an arbitrary measure number;
It is also possible to set n = 1.

The user designates a roll performance section R such as from what bar of what bar and how many beats. Start timing T _S and end timing T _{E of the} roll performance section R
Is represented by the number of clocks of a tempo clock signal to be described later based on the section designation by the user. Performance start position MS
Is represented by the clock number 0, and the clock number corresponding to the quarter note length is 48. In the case of 4/4 time signature, for example, the start timing T _S corresponding to the start position of the second bar is represented by the number of clocks 192 (= 48 × 4).

In addition to the roll performance section R, the user
, A step time FST corresponding to a sounding interval immediately after the start of the roll and a step time LST corresponding to a sounding period immediately before the end of the roll are designated. In FIG. 2, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description will be omitted. Each of the step times FST and LST is specified by the number of clocks of a tempo clock signal described later.

As an example, the roll performance section R is designated as the _first to third beats B _{1 to} B ₃ of the n-th bar, and the step time F
A description will be given of an example of determining the tone generation timing when ST and LST are designated as 48 and 12, respectively. The start timing T _S is adopted as the sound generation timing at the start of the roll. The next pronunciation timing t1 of pronunciation timing T _S at the start of the roll, to adopt a "T _S + FST = T _S +48". "FST-predetermined value" is adopted as a step time following the step time FST. Here, assuming that the predetermined value is 12, the next step time of the FST is 36.
Becomes Similarly, when the successive sound generation timings t2, t3 and t4 after t1 are obtained, "t1 + 3"
6 "," t2 + 24 ", and" t3 + 12 ".

[0017] If the step time before reaching the end timing T _E as sound generation timing t4, t5 is smaller than the step time LST = 12 employs LST = 12 as the step time. As a result, the tone generation timing t5 becomes “t4 + 12”, and the tone generation timing t5.
5 and the time interval between the end timing T _E is "12".

If the time interval between the end timing _TE and the immediately preceding tone generation timing when the end timing _TE is reached is longer than the step time LST = 12, the time interval coincides with LST = 12. Let it. For example,
When the time interval between the end timing T _E and pronunciation timing t5 is "15" is "12".

By setting the time interval between the end timing _TE and the immediately preceding tone generation timing to the step time LST specified by the user, the roll performance can be ended as desired by the user. For example, if the step time calculated for the sounding timings t4 and t5 is 0, no sound is generated at the sounding timing such as t5. Further, the time interval between the end timing T _E and sounding timing t5, for example, 15, sound is not performed in the previous timing from T _E only LST = 12. In any case, if the user
Because meaning is specified ST = 12 is eliminated, in the example of FIG. 2, the sound generation timing of the immediately preceding T _E is the step time 1
Decide to be 2.

FIG. 2 shows the tone generation timings T _S , t 1 to t.
5, the gate time GT is shown. The gate time GT represents the sounding duration from the start of sounding of a predetermined percussion instrument sound (for example, a snare drum sound) by the number of clocks of a tempo clock signal described later. As an example, T
_The gate time GT is represented by a constant clock number 10 for all tone generation timings _S , t1 to t5.

According to the example of FIG. 2, the tone generation timing T _S ,
By performing the automatic performance or the roll sound generation in accordance with the roll data designating t1 to t5, it is possible to easily realize the roll performance in which the sounding interval changes. For example, the snare drum sound is generated at the timing of T _S , and then at t1.
The step time is shortened to 48, 36, 24, and 12 as the time passes through the timing of t3.
At the timings of t4 and t5, the sound is generated so that the step time becomes 12 in each case.

In the example of FIG. 2, the roll performance is performed so that the step time decreases from the start timing T _S of the roll performance section R to the end timing T _E , but from T _S to T _E. It is also possible to perform a roll performance so as to increase the step time. For this purpose, for example, 12 and 48 are designated as the step times FST and LST, respectively, and the step times after the FST are determined as “FST + 12”, “FST + 12 + 12”..., And based on the determined step times, The sounding timing may be determined in the same manner as described above.

FIG. 3 shows a circuit configuration of an electronic musical instrument provided with a roll data generating apparatus according to an embodiment of the present invention. In this electronic musical instrument, a small computer such as a personal computer generates musical sounds and generates roll data. Etc. are controlled.

The bus 10 includes a CPU (central processing unit) 1
2, ROM (Read Only Memory) 14, RAM
(Random access memory) 16, detection circuit 18,
Display circuit 20, sound source circuit 22, effect circuit 24, external storage device 26, MIDI (Musical Instrument Digital Inter
face) interface 28, communication interface 3
0, a timer 32 and the like are connected.

The CPU 12 executes various processes for tone generation, roll data generation and the like in accordance with a program stored in the ROM 14. The process for roll data generation will be described later with reference to FIG.

In the ROM 14, in addition to the programs, a large number of music data for automatic performance are stored as a database. Each piece of music data is stored in a format as shown in FIG. 4 as an example.

In FIG. 4, the music data includes data of a header section and data of a performance section. As the data of the header part, setting data ST such as tempo, volume, effect, etc.
Is stored. The performance section data includes timing data T for each performance event in accordance with the content of the music to be performed.
M and event data EV are stored. Each piece of timing data represents the time from the beginning of the music to the performance event by the number of clocks of a tempo clock signal described later, and the number of clocks of the timing data at the beginning of the music is set to zero. Each event data represents a performance event such as generation or deletion of a musical tone.

Roll data RD for automatic performance is stored at an appropriate place in the arrangement of the timing data TM and the event data EV. To explain the role data RD in correspondence with the example of FIG. 2, the roll data RD is sounding timing T _S, it contains data pronunciation events SE _1, SE ₂ ~SE ₆ respectively corresponding to t1 to t5.
Data pronunciation event SE _1, and timing data representing the sound generation timing T _S, the key-on event data for instructing the generation of the snare drum sounds, and velocity data indicating the velocity (sound intensity), gate time GT
And gate time data indicating the time. Data pronunciation events SE ₂ ~SE ₆ is only different from the pronunciation events SE ₁ data in that it includes a timing data indicating the respective tone generation timing t1 to t5, SE ₂ ~
Any pronunciation event data even sound event SE ₁ data and the same key-on event data SE _6, includes velocity data and gate time data. That is, in the data pronunciation events SE ₁ ~SE _6, although sounding timing for instructing the sound generation timing data are different, the contents of the key-on event data (generation of snare drum sounds) are the same, the velocity data content ( The pronunciation intensity is the same, and the content of the gate time (G
T = clock number 10) is the same.

End data ED is stored at the end of the array of the timing data TM, the event data EV, and the roll data RD. Note that some of the music data stored in the ROM 14 does not include the roll data RD.

The RAM 16 includes various storage units used for various kinds of processing by the CPU 12. The main storage units include a music data storage unit 16A, a section data storage unit 16B, an FST data storage unit 16C, and an LST data storage unit. The storage unit 16D includes a roll data storage unit 16E. The storage unit 16A stores music data for automatic performance read from the ROM 14, and the storage unit 16B
Is for storing section data indicating the above-described roll performance section R, the storage section 16C is for storing FST data indicating the above-described step time FST, and the storage section 16D is for storing the above-described step data. For storing LST data indicating time LST, storage unit 16
E is for storing roll data used for roll sounding based on the roll sounding instruction operation.

The detection circuit 18 detects operation information of various operators from the operator group 34. Operator group 34
Is a mode selection switch for selecting a mode such as a roll data generation mode, a group of designating switches for designating a roll performance section R and step times FST and LST,
It includes a plurality of pad operators, a roll sounding instruction switch, a keyboard for manual performance, a keyboard capable of inputting characters and numerical values, and the like. Percussion sounds such as a bass drum, a snare drum, a cymbal... Are assigned to the plurality of pad operators in advance.

The display circuit 20 includes a display 3 such as a liquid crystal display.
By controlling the display operation of No. 6, various types of display can be performed.

The tone generator 22 generates or deletes a tone signal in response to the supplied event data instructing generation or deletion of a tone. When the pitch of the musical tone to be supplied by the supplied event data is specified, a tone signal having the specified pitch is generated, and the percussion instrument sound (for example, a snare drum sound) to be generated by the supplied event data is generated. When instructing, a tone signal having the tone color of the instructed percussion sound is generated.

In the embodiment of the present invention, the roll performance of the snare drum sound is performed. The key-on event data for instructing the generation of the snare drum sound at each sounding timing such as T _S , t 1 to t 5 shown in FIG. 2 is supplied to the tone generator circuit 22, and the tone color of the snare drum sound is correspondingly changed. Is generated. At this time, the sound source circuit 22 has velocity data indicating the velocity (sound generation intensity) of the snare drum sound and the gate time GT.
Is supplied, so that the sounding intensity and sounding duration of the snare drum sound are also controlled.

The effect circuit 24 adds effects such as chorus and reverb to the tone signal generated from the tone generator 22. The tone signal sent from the effect circuit 24 is
The sound is supplied to the sound system 38 and converted into sound.

The external storage device 26 includes HD (hard disk), FD (floppy disk), CD (compact disk), DVD (digital multipurpose disk), M
One or more types of recording media such as O (magneto-optical disk) can be attached and detached. When a desired recording medium is mounted on the external storage device 26, the RAM 16
Data can be transferred to If the mounted recording medium is a writable medium such as HD or FD, the RAM 1
6 can be transferred to a recording medium.

As a database of music data for automatic performance, a recording medium (the above-mentioned HD, FD, CD, DVD, MO, etc.) of the external storage device 26 may be used instead of the ROM 14. The program recording means includes a ROM
The recording medium of the external storage device 26 can be used in place of 14. In this case, the program recorded on the recording medium is transferred from the external storage device 26 to the RAM 16. Then, according to the program stored in the RAM 16, the CPU 1
Operate 2 By doing so, it is possible to easily add a program, upgrade a version, and the like.

The MIDI interface 28 is provided for transmitting and receiving performance information and the like to and from another MIDI device 40 such as an automatic performance device.

The communication interface 30 is provided for performing information communication with a server computer 44 via a communication network 42 (for example, a LAN (local area network), the Internet, a telephone line, etc.). Programs and various data necessary for implementing the present invention are stored in a RAM from a server computer 44 via a communication network 42 and a communication interface 30.
16 or the external storage device 26 in response to a download request.

The timer 32 receives the given tempo data T
The tempo clock signal TCL is generated at a cycle corresponding to the MP. The tempo clock signal TCL is supplied to the CPU 12 as an interrupt command. The CPU 12 starts an interrupt process for each clock pulse of the tempo clock signal TCL. By utilizing such an interrupt processing, an automatic performance based on the music data in the storage unit 16A or the storage unit 16A can be performed.
A roll performance based on the roll data of E can be performed. In other words, each time the clock pulse of the tempo clock signal TCL is counted and the sounding timing is reached, event data (key-on event data, velocity data, and gate time data in the case of a roll performance) that is paired with timing data indicating the sounding timing is generated. By supplying the tone signal to the tone generator 22, a tone signal (a tone signal having a tone color of a snare drum sound in the case of roll performance) can be generated.

In the electronic musical instrument described above, the CPU 12
Each time a key is pressed on a key in the operator group 34, the pitch information and the sounding instruction signal corresponding to the key pressed are generated by the tone generator circuit 2.
Feed to 2. The tone generator 22 generates a tone signal having a pitch corresponding to a pressed key in accordance with the pitch information and the tone generation command signal. In this way, a manual performance sound can be generated.

Next, a roll data generation routine will be described with reference to FIG. When the user selects the roll data generation mode with the mode selection switch in the operator group 34, it is detected that the roll data generation mode is selected in a main routine (not shown), and the roll data generation routine of FIG. Start.

In step 50, a music selection process is performed. That is, when a desired song is designated by operating a keyboard capable of inputting characters and numerical values in the operator group 34, song data of the designated song is read from the database,
The data is written in the storage unit 16A of the RAM 16 in a format as shown in FIG.

Next, at step 52, a process of designating the roll performance section R and the step times FST and LST is performed. The user uses the designated switch group in the operator group 34 to set a desired roll performance section R and step times FST and LST.
When ST is specified, the storage units 16B and 16C of the RAM 16
And 16D each include a specified roll performance section R.
Data indicating the step, the step time FS related to the designation
FST data indicating T and LST data indicating a step time LST relating to the designation are written. The section data in the storage unit 16B indicates the start timing T _S and the end timing T _E as shown in FIGS. After step 52, the process moves to step 54.

In step 54, it is determined whether the designation process in step 52 has been completed. If the result of this determination is negative (N), the process returns to step 52 and the designation process is performed. When the determination result of step 54 is affirmative (Y),
Move to step 56.

In step 56, it is determined whether there is data in the roll performance section indicated by the section data of the storage section 16B in the music data of the storage section 16A, and if there is, the data is deleted. For example, as shown in FIG. 4, when there is roll data RD in a roll performance section, the roll data RD is deleted, and new roll data is written in the deleted portion by the subsequent processing. Also,
If the music data in the storage unit 16A does not include data in the designated roll performance section, the roll data is written into the designated roll performance section by the subsequent processing.

Next, at step 58, in the music data of the storage section 16A, various data relating to the first sounding event are written in the roll performance section indicated by the section data of the storage section 16B. In the example of FIG. 4, the first sounding event SE
Write timing data, key-on event data, velocity data and gate time data as various data related to ₁ . At this time, data having a start timing T _S indicated by the section data in the storage unit 16B as a sounding timing is written as the timing data, data indicating a snare drum sound generation is written as the key-on event data, and velocity data is written. Is written as data representing a predetermined velocity value, and as gate time data, a predetermined gate time value (G
T = 10) is written. Thereafter, the process proceeds to step 60.

In step 60, a step time NST and a sounding timing tN for the next sounding event are calculated. "FS with the example of FIG. 2, calculates the sound generation timing t1 = T _S +48 by equation" T _S + FST "
The step time NST = 36 is calculated by the equation of “T-12”. Thereafter, the process proceeds to step 62.

[0049] In step 62, it is determined whether or value of end timing T _E value pronunciation timing tN instructs the section data in the storage unit 16B (tN ≧ T _E). This determination is to determine whether sounding timing exceeds or reaches the end timing T _E or the end timing T _E.
In the example of FIG. 2, a t1 = T _S +48, because not reached T _E, the decision result in the step 62 moves to the negative (N), and the step 64.

At step 64, step time NST
Is shorter than the step time LST indicated by the LST data in the storage unit 16D (NST <LST). FIG.
In the example, NST = 36 and LST = 12, so that the determination result of step 64 is negative (N),
Move to step 66.

In step 66, in the music data of the storage section 16A, various data relating to the sounding event corresponding to the calculated sounding timing is written in the roll performance section indicated by the section data of the storage section 16B. In the example of FIG. 4, writes the timing data as various data relating to pronounce event SE _2, key-on event data, the velocity data and the gate time data. At this time, as the timing data, write the data for instructing the sound generation timing t1, the key-on event data, key-on event data pronunciation event SE ₁ as velocity data and gate time data, velocity data and gate time data and the respective same data Write. Then, the process returns to step S60.

In step 60, a step time NST and a sounding timing tN for the next sounding event are calculated in the same manner as described above. In the example of FIG. 2, “t1 + 36” is calculated as the sounding timing t2, and “36−12 = 24” is calculated as the step time NST. Then, the process proceeds to a step 62.

In Step 62, it is determined whether tN ≧ T _E in the same manner as described above. In the example of FIG. 2, t2 = t1 + 3
6, and so does not reach the T _E, the determination result is negative (N) next to the step 62 proceeds to step 64.

In step 64, it is determined whether NST <LST as described above. In the example of FIG. 2, NST = 2
4 and is longer than LST = 12, so the result of the determination at step 64 is negative (N), and the routine goes to step 66.

In step 66, various data relating to the sounding event corresponding to the sounding timing calculated in the same manner as the previous time are written in the storage unit 16A. In the example of FIG. 4, timing data, key-on event data, velocity data, and gate time data are written as various data relating to the sound generation event SE ₃ (not shown). At this time,
The timing data, write the data for instructing the sound generation timing t2, the key-on event data, written pronounce event SE ₁ key-on event data, the velocity data and the gate time data and the respective same data as velocity data, and gate time data. Then, the process returns to step S60.

[0056] After this, written in the same manner as described above in the storage unit 16A various data relating to pronounce event SE ₄ (timing data for instructing the sound generation timing t3 = t2 + 24) By repeating the process of step 60-66. In this case, the step time NST is 24-12 =
It becomes 12. Thereafter, the process returns to step S60.

In step 60, the sound generation event SE
₅ on the step time NST and pronunciation timing t
When N is obtained, t4 = t3 + 12, NST = 12-12
= 0.

[0058] Next, in step 62, it is determined whether or not tN ≧ T _E. Since t4 = t3 + 12 does not reach T _E , the result of the determination in step 62 is negative (N), and the routine goes to step 64.

In step 64, it is determined whether NST <LST. Since NST = 0 and shorter than LST = 12,
The result of the determination at step 64 is affirmative (Y), and the routine proceeds to step 68.

At step 68, various data relating to the calculated sounding event are written in the music performance data of the storage section 16A in the roll performance section indicated by the section data of the storage section 16B, and LST = 12 is adopted as the step time NST. In the example of FIG. 4, writes the timing data as various data about sound events SE _5, the key-on event data, the velocity data and the gate time data. At this time, as the timing data, write the data for instructing the sound generation timing t4, the key-on event data, key-on event data pronunciation events SE ₁ as velocity data and gate time data, velocity data and the gate time data of the same data, respectively Write. Then, the process returns to step S60.

At step 60, the sound generation event SE
Step time NST and pronunciation timing t on ₆
When N is obtained, t5 = t4 + 12, NST = 12-12
= 0.

Thereafter, the processes of steps 62, 64, and 68 are executed in the same manner as described above, whereby the sound generation event S
Various types of data (pronounced timing t5 = t4 on the E ₆ +
12 is written in the storage unit 16A. In this case, the step time NST becomes LST = 12 by the processing of step 68. After step 68, the process returns to step 60.

At step 60, the step time NST and the sounding timing tN for the next sounding event
, TN = t5 + 12, NST = 12−12 =
It becomes 0. If it is determined in step 62 that tN ≧ T _E , the determination result is positive (Y) because tN = T _E.
Then, the process proceeds to step 70.

In step 70, it is determined whether or not the equation of T _E -tN = LST relating to the previous sound generation event holds.
If not, tN relating to the previous sound generation event is corrected so as to be established. In the example of FIG. 4, T _E -t5 = 12
= LST, so t5 is not modified. Assuming _TE
-T5 = 15 a was the case, modifies the t5 such that T _E -t5 = 12.

After step 70, the process ends, and the process returns to the main routine.

According to the above-described roll data generation routine, as shown in FIG. 4, the roll data RD can be written into the roll performance section indicated by the section data of the storage section 16B in the music data of the storage section 16A. it can. By the above-described interrupt processing, the automatic performance such as a melody can be performed based on the music data in the storage unit 16A. In the roll performance section, the roll performance is performed according to the tone generation timings T _S , t1 to t5 specified by the roll data RD. Can be.

According to another embodiment of the present invention, roll sound generation based on a roll sound instruction operation can be performed according to roll data RD. In this case, the music selection process 50 is omitted in the roll data generation routine of FIG.
By executing steps 52 to 70 in the same manner as described above, the roll data RD is stored in the storage unit 16E of the RAM 16. However, sound events SE ₁ pronunciation timing T _S = writes data indicating the number of clocks 0 as the timing data, as the roll playing interval R example 1
Specify measures (multiple measures allowed).

When the bad operator corresponding to the snare drum sound in the operator group 34 is independently turned on, the tone data of the snare drum sound is supplied to the tone generator circuit 22 by supplying the sound source circuit 22 with event data instructing the generation of the snare drum sound. Is generated sporadically. On the other hand, when the pad operator corresponding to the snare drum sound in the operator group 34 and the roll sounding instruction switch are simultaneously turned on, the roll performance is performed based on the roll data RD in the storage unit 16E by the above-described interrupt processing. Perform This roll performance is performed only while the pad operator and the sounding instruction switch are simultaneously turned on. When the roll performance has reached the end timing T _E of roll playing section, continue to play back to the start timing T _S of roll playing section.

The present invention is not limited to the above embodiment, but can be implemented in various modified forms. For example, the following changes are possible.

(1) The music data for automatic performance may be divided into a plurality of tracks and stored. For example, the first track stores melody data for automatic performance and also stores roll performance section mark data at a desired position in the melody data, and the second track stores roll data for automatic performance. I do. When the melody data is read from the first track and the melody is automatically performed, the roll data is read from the second track in response to the reading of the roll performance section mark data, and the roll performance is performed according to the roll data. What is necessary is just to return to the automatic performance of the melody in response to the end of the performance. Alternatively, a desired section in a desired track may be selected to create and record roll data.

(2) The format of the music data for automatic performance is not limited to the “event + absolute time” method in which the event occurrence time is represented by the absolute time in the music. "Relative time", "event + relative time" method, note pitch and note length, and rest and rest length, "pitch (rest) + note length" method to indicate the content of the song, minimum event occurrence An arbitrary method such as a method of securing a storage area for each time unit and storing the event in a storage area corresponding to the time of occurrence of the event can be used.

(3) The tone color of the drum sound to be generated may be freely set by the user. Further, different tone colors may be set for each sounding event.

(4) The gate time may be freely set by the user for each sounding event. Also,
A gate time corresponding to the step time may be created for each sounding event. For example, it can be created so that the gate time becomes gradually shorter as the step time becomes shorter.

(5) The method of calculating the tone generation timing and the step time is not limited to the method described in the embodiment. For example, the sounding timing and the step time may be obtained for each sounding event using a predetermined function, or the sounding timing and the step time may be obtained for each sounding event with reference to a table stored in advance. Good.
Also, the amount of attenuation (or increase) of the step time need not be a constant value.

(6) The method of determining the sound generation timing is not limited to the method of simply reducing (or increasing) the step time. For example, after the step time is reduced toward a predetermined intermediate value, the roll is ended. A determination method or the like that increases the timing may be used. The intermediate value of the step time may be set freely by the user.

(7) The velocity value may be different for each sounding event. For example, the user can set the start and end velocity values of the roll performance section, and calculate the velocity values so as to gradually change from the start velocity value to the end velocity value. As a calculation method, a method of decreasing (or increasing) by a predetermined value,
There are a method using a predetermined function, a method of referring to a table, and the like. Further, a method of following the change in the velocity value with the change in the step time may be used. For example, the user sets the velocity value at the beginning of the roll performance section and follows the step time as the step time becomes gradually shorter (or longer). Then, the velocity value may be gradually reduced (or increased).

(8) The section designation is not limited to the bar or beat timing, but may be made at any clock timing.

[0078]

As described above, according to the present invention, based on the sounding interval immediately after the start of the roll according to the user's designation, the sequential sounding timing following the sounding timing at the start of the roll is different from the sounding interval. The interval is determined so as to generate the roll data indicating the sound generation timing at the start of the roll and the subsequent sound generation timing, so that the roll performance in which the sound generation interval changes reflects the user's will. The effect which can be easily realized is obtained.

The sounding timing immediately before the roll end timing is set so that the time interval between the roll end timing specified by the user and the sound generation timing immediately before the roll end coincides with the sound generation period immediately before the roll end specified by the user. Is determined, the roll performance can be ended in a manner desired by the user.

Further, with respect to the music data for automatic performance stored in the storage means, a roll performance section is specified by the specifying means, and the automatic performance roll data of the specified performance section is generated by the generation means and written into the storage means. With this configuration, roll data for automatic performance can be obtained easily and quickly in a desired roll performance section, and the automatic performance can be smoothly shifted to.

Further, in accordance with the configuration in which a predetermined percussion instrument sound is rolled in accordance with the sounding timing instructed by the roll data from the generating means in response to the sounding instruction from the instructing means, even an unskilled person. There is an effect that, with a simple operation, you can enjoy a roll performance in which the sounding interval changes like a natural musical instrument.

[Brief description of the drawings]

FIG. 1 is a time chart showing an example of specifying a roll performance section in a roll data generation method according to the present invention.

FIG. 2 is a time chart showing an example of determining a sounding timing and a step time in the roll data generating method according to the present invention.

FIG. 3 is a block diagram illustrating a circuit configuration of an electronic musical instrument including a roll data generation device according to an embodiment of the present invention.

FIG. 4 is a diagram showing a format of music data for automatic performance.

FIG. 5 is a flowchart illustrating a roll data generation routine.

[Explanation of symbols]

10: bus, 12: CPU, 14: ROM, 16: RA
M, 16A: music data storage, 16B: section data storage, 16C: FST data storage, 16D: LST data storage, 16E: roll data storage, 18: detection circuit, 20: display circuit, 22: sound source Circuit, 24: effect circuit, 26: external storage device, 28: MIDI interface, 30: communication interface, 32: timer, 3
4: operator group, 36: display, 38: sound system, 40: MIDI equipment, 42: communication network, 4
4: Server computer.

Claims (5)

[Claims] 1. A designating means for designating a sounding interval immediately after the start of a roll, and a successive sounding timing subsequent to the sounding timing at the start of the roll based on the sounding interval specified by the designating means. A data generating apparatus comprising: generating means for generating a roll data indicating a sounding timing at the start of a roll and a successive sounding timing following the sounding timing by determining the interval so as to be an interval. 2. The method according to claim 1, wherein the specifying unit is capable of specifying a roll end timing and a sound generation period immediately before the end of the roll, and the generating unit is configured to specify the roll end timing specified by the specification unit and a sound generation timing immediately before the roll end timing. 2. The data generation apparatus according to claim 1, wherein the sound generation timing immediately before the roll end timing according to the designation is determined such that a time interval between the specified roll end time and the sound generation period immediately before the end of the roll specified by the specification means coincides. . 3. A recording medium used in a data generating device having a designating means for designating a sounding interval immediately after the start of a roll, wherein the sounding timing at the start of the roll is determined based on the sounding interval designated by the designating means. And generating the roll data indicating the tone generation timing at the start of the roll and the sequential tone generation timing following the tone generation timing by determining the successive tone generation timing following the tone generation interval to be different from the tone generation interval. A recording medium on which a program is recorded. 4. A storage means for storing music data for automatic performance, a designating means for designating a roll performance section and a sounding interval immediately after the start of a roll with respect to the music data, and a roll designated by the designating means. Generating means for generating roll data for automatic performance of a performance section and writing the roll data in the storage means, based on a sounding interval specified by the specifying means, to sequentially generate a sounding timing subsequent to a sounding timing at the start of a roll; By determining the tone generation interval to be different from the tone generation interval, data indicating the tone generation timing at the start of the roll and the sequential tone generation timing following the tone generation timing is generated as timing data in the roll data for the automatic performance. A data generation device comprising: 5. An instructing means for instructing a roll sound for a predetermined percussion instrument sound, a designating means for designating a sounding interval immediately after the start of the roll, and a sounding timing at the start of the roll based on the sounding interval specified by the designating means. Generating means for generating a sounding timing at the start of a roll and a roll data indicating a sequential sounding timing following the sounding timing by determining a successive sounding timing following the sounding interval to be different from the sounding interval. A sound generating means for performing a roll sound of the predetermined percussion instrument sound in accordance with a sound timing instructed by the roll data from the generating means in response to a roll sound instruction from the instructing means.