JP2974471B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus for an electronic musical instrument that performs an automatic performance according to the degree of excitement (intonation) of the performance.

[0002]

2. Description of the Related Art Conventionally, electronic keyboards such as electronic organs and electronic pianos have a memory for storing, for each rhythm name, automatic performance patterns such as intro, fill-in, and ending, in addition to normal automatic performance patterns. By operating a switch for selecting these automatic performance patterns in accordance with the progress of a song, a single phrase automatic performance pattern is read from the memory, and phrases corresponding to these automatic performance patterns are inserted during performance. Has functions.

However, if a fixed automatic performance pattern is simply inserted during a performance, the flow of the performance becomes discontinuous, and it is not possible to obtain a feeling that the accompaniment gradually changes in accordance with the excitement of the performance. was there.

The inventor of the present invention has devised and disclosed an automatic performance device in which an intonation dial for indicating the degree of excitement of a performance is provided, and an automatic accompaniment sound corresponding to the degree of excitement is obtained by operating the dial. (For example, Japanese Patent Application Laid-Open No. 4-274297 (Japanese Patent Application No. 3-58189)).

In the automatic performance apparatus having such an intonation dial, when a fill-in is inserted, a fixed fill-in pattern is inserted, and there is a problem that the climax of the performance is spoiled.

On the other hand, each pattern data of the automatic performance pattern is composed of data for generating chord, bass and drum tones. Therefore, the pattern data stored in the memory includes chord, bass, and drum data for each of normal, intro, fill-in, and ending.

Therefore, there is a disadvantage that the amount of pattern data becomes enormous and a large-capacity memory is required.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and according to the degree of excitement of a performance at that time, either a loud (strong) fill-in or a soft (weak) fill-in is used. It is an object of the present invention to provide an automatic performance device which enables insertion of an automatic performance and reduces data for an automatic performance pattern.

[0009]

In order to solve the above-mentioned problems, an automatic performance device according to the present invention has a storage means 17 for storing data of a plurality of automatic performance patterns, and a plurality of data stored in the storage means 17. A designating means (FIG. 3) for designating any one of the automatic performance patterns, a setting means 25 for setting an intonation value corresponding to the degree of excitement of the performance, and a designation from the main pattern to the auxiliary pattern by the designating means 25. A selection means (FIG. 4) for automatically selecting a part for maintaining the main pattern and a part for changing to the auxiliary pattern in accordance with the set value of the setting means, and Tone generating means 19, 20, 21 for generating a tone based on the pattern data
And characterized in that:

[0010]

[0011]

According to the present invention, at least the first and second automatic performance patterns are used as specific automatic performance patterns, for example, fill-in performance patterns.
Is prepared in the storage means. And
For example, data for performing a loud fill-in performance as the first pattern data and data for performing a soft fill-in performance as the second pattern data are stored.

The setting means for setting the intonation value corresponding to the degree of excitement of the performance is operated, and when the intonation value is set to a predetermined value or more, the first intonation value is set.
Is read out to perform a loud fill-in performance, and if the value is set to a value smaller than a predetermined intonation value, the second pattern data is read out to perform a soft fill-in performance.

With this arrangement, if a fill-in is inserted when the performance is excited by changing the intonation value by the setting means, a loud fill-in performance matching the exciting state of the performance is performed, and conversely, the intonation is set by the setting means. If a fill-in is inserted while the value is changed and a quiet performance is being performed, a soft fill-in performance that matches the performance state is performed.

Further, according to the present invention, the storage means stores a predetermined type of third pattern data constituting a normal pattern used for a normal automatic performance and a second pattern data of the specific automatic performance pattern. A plurality of types of pattern data that are less than the predetermined type are stored, and when the second pattern data is selected by the selection unit, the second pattern data and the third pattern data in the third pattern data are stored. Automatic performance is performed by reading out the pattern data other than the pattern data corresponding to the second pattern data.

Thus, it is not necessary to store the same type of pattern data as the third pattern data as the second pattern data for a specific automatic performance pattern, and the amount of pattern data can be reduced. The capacity of the storage means for storing the pattern data can be reduced.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The arrangement for controlling the degree of excitement of the performance using the intonation dial is disclosed in Japanese Patent Application Laid-Open No. 4-274297 (Japanese Patent Application No. 3-58189).
Therefore, only the configuration in which the intonation dial is used for controlling the soft / loud of the fill-in will be described here.

FIG. 1 is a block diagram schematically showing an overall configuration of an automatic performance apparatus according to the present invention.

In FIG. 1, reference numeral 10 denotes a keyboard, which includes a plurality of keys, key switches that open and close in response to key press / release operations of these keys, and a key scan circuit that detects the open / close state of these key switches. Contains. A signal indicating a key pressed / released state detected by the key scan circuit of the keyboard 10 is sent to the keyboard interface 11.

The keyboard interface 11 mediates transmission and reception of signals between the keyboard 10 and the system bus 30. A signal indicating a key pressed / released state sent from the keyboard 10 is transmitted to the keyboard interface 11 and the system bus 3.
0 to the CPU 14.

An operation panel 12 is provided with various switches, a display, and the like for controlling the automatic performance device.

The various switches include a tone color selection switch, a rhythm selection switch, a volume control switch, and other switches generally provided in electronic musical instruments, a rhythm switch for starting a rhythm performance, and an automatic performance of an intro pattern. An intro switch, a fill-in switch for inserting a fill-in, and an ending switch (all not shown) for automatically playing an ending pattern are provided.

Here, the rhythm switch is a switch for starting automatic performance of a normal pattern of the rhythm selected by the rhythm selection switch. The intro switch is a switch for starting an automatic performance based on a normal pattern after playing a predetermined phrase based on the intro pattern.

The fill-in switch is a switch directly related to the feature of the present invention, and is a switch for inserting a predetermined phrase based on a predetermined fill-in pattern into the currently executed automatic performance and performing the automatic performance. is there. The ending switch is a switch for adding a predetermined phrase based on an ending pattern to the currently executed automatic performance and terminating the automatic performance.

The operation panel 12 includes a panel scan circuit for detecting ON / OFF of various switches.
A signal indicating the on / off state of the switch detected on the operation panel 12 is sent to the panel interface 13.

The panel interface 13 mediates transmission and reception of signals between the operation panel 12 and the system bus 30. A signal indicating the ON / OFF state of the switch transmitted from the operation panel 12 is transmitted to the CPU 14 via the panel interface 13 and the system bus 30.

Reference numeral 25 denotes an intonation dial for indicating the degree of excitement of the performance. The intonation dial 25 is controlled so that, for example, turning to the right increases the intonation value and turning to the left decreases the intonation value. The output signal of the intonation dial 25 is supplied to a pulse generator 26.

The pulse generator 26 generates a pulse corresponding to the rotation by rotating the intonation dial 25. The pulse generated by the pulse generator 26 is transmitted via the system bus 30 to the CP.
It is supplied to U14. The CPU 14 counts the number of pulses and obtains information on the degree of excitement (intonation value). In this embodiment, the intonation value is "0
3 ".

Reference numeral 14 denotes a central processing unit (CPU) which controls each section of the automatic performance device according to a control program stored in a program memory 15.

The program memory 15 is constituted by, for example, a read-only memory (ROM), and stores a control program as described above. The program memory 15 stores various fixed data used by the CPU 14 in addition to the control program. This program memory 15 is
Is accessed via the system bus 30.

16 is a random access memory (RAM)
A work area of the CPU 14, various registers and flags for controlling the automatic performance device are defined. The RAM 16 is accessed by the CPU 14 via the system bus 30.

An automatic performance pattern data memory 17 stores pattern data used for automatic performance. FIG. 6 shows an example of the configuration of data stored in the automatic performance pattern data memory 17.

That is, normal 1 to 1 rhythm
4. Intro, soft fill-in, loud fill-in,
It has each pattern data of ending, normal 1 ~ 3, intro, loud fill-in, each pattern data of ending has a three track configuration by each data of chord, bass, drum, pattern data of soft fill-in It consists of drum data only.

The chord, bass, and drum data are each composed of a plurality of performance data for generating one to several measures of musical tones. Each performance data is key number KE
Y or bar END or pattern END (“KE
Y "), the step time STE
P, gate time GATE, and velocity VELO.

Here, the key number KEY designates the pitch, and is a number assigned to each key of the keyboard 10. The bar END is information indicating the end of the bar.
The pattern END is information indicating the end of the pattern data.

The step time STEP is information for designating a sound generation time in a bar. The gate time GATE is information for specifying a time at which a sound should be generated. The velocity VELO is information for specifying the intensity of a sound to be generated.

This automatic performance pattern data memory 17
Are accessed by the CPU 14 via the system bus 30.

Numeral 18 denotes a musical tone waveform memory for storing musical tone waveform data and envelope data corresponding to various timbres and tone ranges. The tone waveform memory 18 is accessed by the tone generator 19 via the system bus 30.

The tone generating circuit 19 reads out tone waveform data and envelope data corresponding to the data supplied from the CPU 14 from the tone waveform memory 18 and adds an envelope to the read tone waveform data to output as a tone signal. is there. The tone signal output from the tone generating circuit 19 is supplied to an amplifier 20.

The amplifier 20 amplifies the tone signal supplied from the tone generating circuit 19 with a predetermined gain and supplies the amplified signal to the speaker 21. The speaker 21 is a well-known device that converts an electric signal into an acoustic signal.

The keyboard interface 11, panel interface 13, CPU 14, program memory 15, RAM 16, automatic performance pattern data memory 1
7. The musical tone waveform memory 18, the musical tone generating circuit 19 and the pulse generator 26 are interconnected by a system bus 30.

Next, the operation of the embodiment of the present invention in the above configuration will be described with reference to the flowcharts shown in FIGS.

When the power is turned on, as shown in FIG.
First, an initialization process is performed (step S10). This initialization process sets the internal state of the tone generation circuit 19 to the initial state to prevent unnecessary sounds from being generated when the power is turned on, clears the work area of the RAM 16, and resets registers and flags. This is a process for setting an initial state.

Next, key processing is performed (step S1).
1). In this key processing, sound generation / mute processing is performed in accordance with key press / release of a key on the keyboard 10. The operation of this key processing is well known and has no direct relation to the gist of the present invention, and therefore, detailed description is omitted.

Next, panel processing is performed (step S12). Hereinafter, details of the panel processing will be described with reference to FIG.
This will be described with reference to the flowchart of FIG.

In the panel process, first, a panel scan process is performed (step S20). That is, the operation panel 1
A signal indicating the on / off state of each switch detected by the panel scan circuit 2 is read by the CPU 14 via the panel interface 13 and stored in the RAM 16. Then, the on / off state of each switch previously taken from the operation panel 12 (already stored in another area of the RAM 16) is compared with the on / off state of each switch taken from the operation panel 12 this time. An event map is created in which only the bits corresponding to the newly turned on switches are set.

Next, it is checked whether or not the rhythm switch has been turned on (step S21). This is performed by examining the event map created by the panel scan process. The same applies to the determination of switch on / off to be performed below.

If it is determined that the rhythm switch is not turned on, it is checked whether or not the intro switch has been turned on (step S23). When it is determined that the intro switch has been turned on, the process branches to step S22, and a rhythm start process is performed.

On the other hand, if it is determined that the switch is not an intro switch, it is checked whether the ending switch has been turned on (step S24). Then, when it is determined that the ending switch has been turned on, the flow branches to step S22 to perform a rhythm start process. on the other hand,
If it is determined that the switch is not the ending switch, it is checked whether the fill-in switch is turned on (step S25).

When it is determined that the fill-in switch has been turned on, it is checked whether the intonation value at that time is "3" or more (step S2).
6). When it is determined that the value is “3” or more,
The process branches to step S22 to perform a rhythm start process.
In this case, an automatic performance of the loud fill-in is performed.

On the other hand, if it is determined in step S26 that the value is smaller than "3", the soft fill-in flag is set (step S27). Thereafter, the flow branches to step S22 to perform a rhythm start process. Thus, in the rhythm performance processing routine (details will be described later), the automatic performance processing based on the soft fill-in pattern is started. Here, the soft fill-in flag is a flag that stores whether or not soft fill-in is designated as the automatic performance pattern, and is provided in the RAM 16.

If it is determined in step S25 that the switch turned on is not a fill-in switch,
Processing corresponding to depression of other switches is performed (step S28). For example, tone color selection processing, rhythm selection processing, volume change processing, and the like are performed. afterwards,
Return from this panel processing routine.

When it is determined in step S21 that the rhythm switch has been turned on, a rhythm start process is performed (step S22).

The details of the rhythm start process will be described with reference to the flowchart of FIG.

In the rhythm start process, first, it is checked whether the soft fill-in flag is on, that is, whether the fill-in switch of the operation panel 12 is turned on and the intonation value is smaller than "3" ( Step S30).

If it is determined that the soft fill-in flag is not on, a code head address set (step S31), a base head address set (step S32), and a drum head address set (step S33) are performed.

That is, when a switch other than the fill-in switch is pressed, or when the fill-in switch is pressed and the intonation value is “3” or more, the rhythm is started in order to start automatic performance according to the pressed switch. An automatic performance pattern corresponding to the rhythm selected by the selection switch, the chord, bass and drum data corresponding to the pressed intro, rhythm, ending or fill-in switch (when the intonation value is greater than "3"). The stored start address is set.

On the other hand, when it is determined that the soft fill-in flag is ON, the processes of the code head address set (step S31) and the base head address set (step S32) are skipped, and the drum head address set (step S32) is skipped. Only S33) is performed. On this occasion,
The data of the normal pattern being executed at that time is used as the data for the code and the bass, and the data of the soft fill-in pattern is used as the data for the drum.

Next, a rhythm flag is set (step S34). The rhythm flag is a flag that stores whether or not a rhythm performance (automatic performance) is designated, and is provided in the RAM 16.

Next, the rhythm counter COUNT is cleared (step S35). This rhythm counter COU
NT is a counter for giving a time at which a sound is generated. The rhythm counter COUNT is incremented at predetermined time intervals in accordance with the tempo of the music.

When the above panel processing is completed, the process returns to the main routine. Then, it is checked whether the rhythm flag is on (step S13). That is, it is checked whether or not the rhythm switch of the operation panel 12 is depressed and it is specified that the rhythm performance should be performed. And
If it is determined that the rhythm flag has not been turned on, the process returns to step S11, and the above operation is repeatedly executed.

On the other hand, when it is determined that the rhythm flag is turned on, a rhythm performance process is performed (step S14), and thereafter, the process returns to step S11 to repeatedly execute the above operation.

As described above, a normal performance or an automatic performance is performed according to each operation of the keyboard 10 and the operation panel 12.

Next, the rhythm performance processing performed in step S14 will be described with reference to the flowchart shown in FIG. In the rhythm performance processing, the same processing is performed for chord, bass, and drum data, but the processing itself is the same. Therefore, in the following description, only the processing for one pattern data will be described. explain.

In this rhythm performance process, it is first checked whether or not it is time to read performance data (step S40). This is because the performance data is stored in the automatic performance pattern data memory 17 by checking a read timing clock output from a timing clock generator (not shown).
This is a process for judging whether or not it is time to read data from the. If it is determined that it is not the read timing, the process returns from the rhythm performance processing routine without performing the following processing.

On the other hand, when it is determined that it is the read timing, the performance data is read (step S).
41). Then, the step time STEP included in the read performance data is stored as a "NEXT STEP" in a predetermined buffer, and it is checked whether or not the content of the buffer is equal to the content of the rhythm counter COUNT (step S42). If they are not equal, it is recognized that the time to sound has not yet arrived, and the routine returns from the rhythm performance processing routine.

On the other hand, if the step time STEP is equal to the content of the rhythm counter COUNT, it is checked whether or not the previously read performance data is information indicating the pattern END (step S43). This is performed by checking a predetermined bit contained in the first byte of the performance data. The following measures END (step S45)
Is the same. If it is determined that the rhythm information is the pattern END information, it is determined that the rhythm performance processing of the predetermined bar has been completed, and the rhythm start processing is performed again (step S44). Since the rhythm start process has already been described, the description is omitted here.
As a result, continuous rhythm performance is possible.

On the other hand, if it is determined in step S43 that the information is not the pattern END information, it is checked whether or not the information is the bar END information (step S45). And measure E
If it is determined that the information is ND information, it is checked whether the soft fill-in flag is on (step S46).
If it is on, it is cleared (step S4
7). This realizes a function of performing fill-in performance of only one bar when the fill-in switch is pressed.

If it is determined in step S45 that the data is not the bar END information, the key number is recognized, and a tone generation process is performed based on the read performance data (step S48). Since this sound generation process is well known, a detailed description is omitted here.

Next, the next performance data in the pattern data is read out (step S49), and the STE in the data is read out.
The P information is set in a predetermined buffer as “NEXT STEP” (step S50). Then, the process returns to step S42, and the same processing as described above is performed.

When the processing for all the performance data having the same step time is completed in this way, the routine returns from the rhythm performance processing routine.

In the rhythm performance processing, when the soft fill-in is designated, the chord and base pattern data include the data of the normal pattern being executed at that time (the chord head address already set at the time of the rhythm start processing). , Data specified by a base start address), and soft fill-in data (data specified by a drum start address set at the time of rhythm start processing) are used as drum pattern data.

As described above, according to this embodiment, pattern data for soft fill-in and loud fill-in are provided as fill-in patterns, and when the intonation value is set to a predetermined value or more by the intonation dial, that is, the performance is performed. When the fill-in is designated in the raised state, the pattern data for the loud fill-in is read out and the loud fill-in is automatically performed.

On the other hand, when the intonation value is made smaller than the predetermined value by the intonation dial,
When fill-in is designated in a state where the performance is quiet, pattern data for soft fill-in is read out, and automatic performance of soft fill-in is performed.

As described above, any one of the plurality of fill-in data is selected according to the degree of excitement of the performance, so that a fill-in performance matching the performance state can be performed.

The automatic performance pattern data memory 17
When the pattern data is stored, three types of data, that is, a chord, a bass, and a drum, are stored as pattern data relating to each of the automatic performance patterns of intro, normal, ending, and loud fill-in. Only drum data is stored as pattern data relating to the performance pattern.

When it is specified by the fill-in switch of the operation panel 12 that the performance of the fill-in is to be performed and the intonation value is equal to or less than a predetermined value, the drum data is read from the fill-in pattern data.
The chord and base data are read out from the normal pattern data and pronounced.

As described above, by performing the fill-in pattern by changing only the drum pattern from the normal pattern, a slight change is given to the performance music, and a soft fill-in performance can be performed.

With this configuration, there is no need to store code and base pattern data as soft fill-in pattern data. Therefore, the amount of pattern data can be reduced, and the capacity of the automatic performance pattern data memory 17 for storing the pattern data can be reduced.

In the above embodiment, the case where the automatic performance pattern has an intro, fill-in, normal and ending has been described, but the present invention is not limited to this. It may have a smaller number of automatic performance patterns than those described above, and may also have another automatic performance pattern in addition to the above.

The case where the intro, normal and ending pattern data is composed of chords, basses and drums and the fill-in pattern data is composed only of drum data has been described. However, the present invention is not limited to this. Instead, it may be configured to have other pattern data.

Further, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0082]

As described above in detail, according to the present invention, it is possible to provide an automatic performance apparatus capable of inserting a fill-in in accordance with the climax of the performance and reducing the data amount of the automatic performance pattern. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing an overall configuration of an embodiment of an automatic performance device of the present invention.

FIG. 2 is a flowchart (main flowchart) for explaining the operation of the embodiment of the present invention.

FIG. 3 is a flowchart for explaining panel processing in FIG. 2;

FIG. 4 is a flowchart illustrating a rhythm start process in FIG. 3;

FIG. 5 is a flowchart illustrating a rhythm performance process in FIG. 2;

FIG. 6 is a diagram showing an example of a data configuration of an automatic performance panel data memory.

[Explanation of symbols]

 Reference Signs List 10 keyboard 12 operation panel (designating means) 14 CPU (selecting means) 15 program memory 16 RAM 17 automatic performance pattern data memory (storage means) 18 musical sound waveform memory 19 musical sound generating circuit (musical sound generating means) 25 intonation dial (setting means)

Continuation of the front page (56) References JP-A-64-3965 (JP, A) JP-A-2-161498 (JP, A) JP-A-2-99997 (JP, A) JP-A-2-99996 (JP) JP-A-4-274296 (JP, A) JP-A-2-71296 (JP, A) JP-A-64-3696 (JP, A) JP-A-61-175693 (JP, A) JP-A-5-511470 (JP, A) JP-A-5-61470 (JP, A) JP-A-2-62497 (JP, U) Patent 2623174 (JP, B2) Patent 2660456 (JP, B2) US Patent 5,298,677 (US, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) G10H 1/36 G10H 1/00 102 G10H 1/26

Claims (3)

(57) [Claims] 1. A storage means for storing data of a plurality of automatic performance patterns, a designating means for designating one of the plurality of automatic performance patterns stored in the storage means, and Setting means for setting the adjusted intonation value, and a part for maintaining the main pattern and a part for changing to the auxiliary pattern when the designation pattern is switched from the main pattern performing the normal performance to the auxiliary pattern performing the fill-in performance. An automatic performance device comprising: a selection unit for automatically selecting a pattern according to a setting value of the setting unit; and a tone generation unit for generating a tone based on the pattern data selected by the selection unit. . 2. The type of the pattern data is a code,
With respect to pattern data of a type that includes a bass and a drum and is not newly selected by the selection means due to a small degree of excitement of the performance, the pattern data previously selected and executed at that time is maintained. The automatic performance device according to claim 1, wherein 3. The automatic performance apparatus according to claim 1, wherein each of the plurality of automatic performance patterns includes normal, intro, fill-in, and ending performance patterns. .