JPS61198299A - Automatic rhythm performer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic rhythm performance device that inputs a rhythm performance pattern and automatically performs rhythm performance.

[Prior art]

Conventionally, such automatic rhythm performance A devices have been designed so that the performer can input and memorize a rhythm performance pattern by himself or herself, and then use this to create a melody performance. The output is also realized.

[Problems with conventional technology]

However, with such devices, once you preset a rhythm performance pattern, you can only perform with that rhythm pattern, and in order to switch patterns, you have to preset another rhythm performance pattern again, which is very troublesome. This is troublesome, and there is a problem that when resetting the preset, the original rhythm performance pattern is cleared in the memory and cannot be played again.

[Purpose of the invention]

Therefore, an object of the present invention is to vary the rhythm patterns to be outputted in a wide variety of ways, even if the number of preset rhythm performance patterns is small.

[Key points of the invention]

In order to achieve this object, the present invention presets several rhythm performance patterns, and when outputting a performance, each of these preset patterns is switched and selected at each arbitrary timing of the rhythm performance. The main point is to output a combination of patterns.

[Summary of the invention]

FIG. 1 shows an outline of the invention, and the explanation will be given assuming that there are four patterns A, B, O, and D to be preset.

In the pattern input means 1, a rhythm pattern is input for each rhythm sound source such as a bass drum and a snare drum, and when rhythm patterns are input for all rhythm sounds, this becomes one rhythm performance pattern, and this rhythm performance pattern is -D can be input up to four times. This input rhythm performance pattern is written into the pattern storage means 6 by pattern through the writing means in the PUa (for example, as shown in FIG. 4).

The pattern selection means 2 also selects patterns at arbitrary timings of the rhythm performance, such as pattern A for the first beat, pattern C for the second beat, pattern B for the third beat, and pattern C for the fourth beat. Switching is specified. The switching designation contents of the pattern selection means 2 are given to the reading means 5 of the 0PU3, and the reading means 5 selects the rhythm performance pattern by switching each pattern area of the pattern storage means 6 according to the progress of the rhythm. It is read out and given to the rhythm sound generation means 7, thereby emitting rhythm sounds. In this case, the reading by the reading means 4 is advanced by one step each time the count value from the tempo setting means 8 is incremented.

By switching the specified contents of the pattern selection means 2, which rhythm performance pattern can be read out at each timing? A large number of patterns are created and output from the four AND rhythm performance patterns.

[Configuration of Example]

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 2 shows an overall circuit diagram of the automatic rhythm performance device. In the figure, lO is a switch section, and this switch section 10 includes a liquid crystal display section 11, a mode switch, and a t-1 switch.
tze Jl s, -P no 1 ri 1 ri 1 ri,=----"! ^ -1 Fu-14
, a start/stop switch 15, and a timing switch 16 are provided. Of these, the liquid crystal display section 11 displays switch operation details such as designated mode and selection pattern. The mode switch 12 includes keys 12a, 12b, 120, 1 for play, light, and variation 11.
2 (consisting of L, the play key 12a is used to read out and output preset rhythm performance patterns, the light key 12b is used to write and input rhythm performance patterns, and the variation key 12 is used to input and write rhythm performance patterns.
c and variation (2) keys 12d are used to select whether to designate preset patterns separately for each rhythm sound source in the rhythm reading performance, or to designate them separately for each arbitrary timing of the rhythm performance.

The pattern switch 13 consists of a switch group arranged in 4 rows and 6 columns, and the 6 columns correspond to each rhythm sound source such as a bass drum (BD) and a snare drum (sN) and each beat timing such as the 1st beat and 2nd beat. and the 4th line is ASB, C! 1. Compatible with 4 types of preset rhythm performance patterns of D. Seri,
Various rhythm performance patterns can be specified for each rhythm note V key beat timing. The tempo knob 14 sets the tempo of the rhythm performance, and the start/stop switch 15 is a switch for starting or stopping the rhythm performance.

The timing switch 16 consists of 16 step keys, each of which corresponds to steps for one measure, and the timing at which the rhythm sound is to be turned on is preset.

The operation pattern of the timing switch 16 is 0PU3.
, and is preset in the area of the rhythm sound source and pattern specified by the pattern switch 13 in the pattern memory 61 as shown in FIG. This pattern memory 61 consists of a RAM and is backed up by a power supply 62.

Of the rhythm performance pattern data preset in the pattern memory 61, only the data in the area corresponding to the selection designation of the pattern switch 13 of the switch section 10 is 0PU.
3 are sequentially read out and provided to the rhythm sound source group 71. The rhythm sound source group 71 emits rhythm sounds having contents corresponding to the given rhythm performance pattern. The pattern memory 61 is read out at the increment speed of the tempo counter 81, and this increment speed is switched between slow and fast by the tempo knob 14 of the switch section 10.

Further, the operation details of the mode switch 12 and pattern switch 13 of the switch unit 10 are determined by 0PU3 and displayed on the liquid crystal display unit 11. Note that the ROM91 is
A program for performing rhythm input and performance processing, which will be described later in Section 3, is stored.

[Operation of the embodiment]

Next, the operation of this embodiment will be described.

Now, in the pattern shown in Figure 5, A and B.

It is assumed that each OSD pattern is preset.

To do this, first turn on the light key 12b of the switch section 10, turn on the key in the A pattern row of the bass drum (BD) column of the pattern switch 13, and then turn on the timing switch 1.
Turn on step keys 1, 7.9 of 6.

Then, the CPU 3 starts the operation 70 shown in FIG.
First, the light key 12'b is turned on, so it is determined that it is in the input mode (step St), and the on key of the pattern switch 13 is read (step S,).
, addresses the bass drum area of the corresponding pattern A in the pattern memory 61 (step S). Next, the rOPU 3 reads the on key of the timing switch 16 (step S4), and reads the pattern memory 61.
Timing switch 16 in the addressed area of
The rhythm performance pattern data corresponding to the ON content of is written (step Sm).

Here, if the start/stop key 15 is turned on (step Ss), 0PU3 is the rhythm sound source group 7.
The above-mentioned rhythm performance pattern data is given to the first bass drum sounding section to generate the bass drum rhythm pattern that has just been inputted (step S), and this rhythm pattern is used as the fifth bass drum sounding section.
It is displayed on the liquid crystal display section 11 in the form shown in the figure (step S), and if the start/stop key 15 is not turned on, these sound generation and display processes are not performed and a standby process is performed.

Thereafter, the rhythm pattern presetting process of step 5xNS8 is similarly performed for other rhythm sounds and patterns, and the rhythm performance patterns A to D are preset.

Next, to determine the preset rhythm performance pattern for each rhythm sound source and perform automatic rhythm performance, press the play keys 12 &,! -Variation ■Key 12
Operate G. The bass drum (BD) and snare drum (SN) are played in pattern A, the high tom (HT) and low tom (LT) in pattern B, the cymbals (OY) in pattern C, and the haihara (HH) in pattern D. shall be. These include keys for the A pattern row of the bass drum row and snare drum row of the pattern switch 13, keys for the B pattern row of the high tom row and low tom row, keys for the C pattern row 2 row of the cymbal row, and keys for the D pattern row of the bibat row. Turn on the key.

Then, C! The PU3 determines that it is in the output mode because the play key 12 & is turned on, and goes to step S.
,), since the variation key 120 is turned on, it is determined that the pattern changes for each rhythm sound source.Step S,) reads the on key of the pattern switch 13 (step 5I0), and the pattern memory 6
Address each corresponding area of 1 (step 5
IX).

Then, when the start/stop key 15 is turned on (step S6), the CPU 3 sequentially reads data of the rhythm performance pattern from each address-designated area of the pattern memory and supplies it to the rhythm sound source group 71 to generate the rhythm sound. A sound is generated (step S?), and this rhythm pattern is displayed with symbols A-D (step S,).If the start/stop key 15 is not turned on, these sound generation and display processes are not performed and a standby process is performed. It will be done.

Then, by switching the designation of the AND pattern for each rhythm sound source, a performance is performed using a different rhythm pattern, and the rhythm pattern can be varied for each rhythm sound source.

Next, in order to determine the preset rhythm performance pattern at each beat timing and perform automatic rhythm performance, the play key 12a and the variation ■ key 12d are operated. The preset rhythm performance pattern is 4 beats long, and the first beat is A, the second beat is B, and the third beat is 0.14 beats is D. . To do this, the pattern switch 13 has a key for the A pattern row in the 1st beat column, a key in the B pattern row in the 2nd beat column, a key in the C pattern 2 row in the 3rd beat column, and a key in the D pattern row in the 4th beat column. Turn on the key.

Then, since the play key 12a is turned on, the CPU 3 determines that it is in the output mode and proceeds to step S1.
), Variation ■ Since the key 12d is turned on, it is determined that the pattern changes at each beat timing.Step S, ), the on key of the pattern switch 13 is read (step S t *), and the pattern memory 61 is changed. Address each corresponding area (
Step 51s).

Then, when the start/stop key 15 is turned on (step Se), the rhythm performance pattern data is sequentially read out from each address-designated area of the pattern memory and applied to the rhythm sound source group 71 to generate rhythm sounds. (step S?), and display this rhythm pattern with symbols A-D (step S?).
g) If the start/stop key 15 is not turned on, these sound generation and display processes are not performed and a standby process is performed.

Then, by switching the designation of patterns A to D at each beat timing, a performance is performed using a different rhythm pattern, and the rhythm pattern can be varied variously at each beat timing.

[Effects of Examples]

In this embodiment, in addition to being able to switch the rhythm pattern for each beat timing, it is also possible to switch the rhythm pattern for each rhythm sound source, so it is possible to increase the number of rhythm change patterns. Since the switch and the switch for changing the pattern for each beat timing are shared, the number of switches can be reduced accordingly.

In the above embodiment, the rhythm pattern can be switched at the beat timing, but the number of keys of the pattern switch 13 may be increased so that the rhythm pattern can be switched at finer timing than the beat. 13 and 16 step keys similar to the timing switch 16 may be provided for each of the four AND patterns, resulting in 4×16=64 keys. In this way, patterns A to D can be specified for each step. In this case, a separate key is provided for specifying the rhythm sound source, and when outputting a performance, a pattern of A-D is stored one step at a time for each rhythm sound source, and a pattern of A-D is stored at each timing for each rhythm sound source. This means that the rhythm pattern of D can be specified. In addition, rhythm performance patterns can be stored not only in preset patterns but also in ROM.
etc., or data transferred to RAM.The set contents are divided into timing data that shows only the timing of all rhythm sounds, and on data that shows only the on of each rhythm sound. But that's fine.

〔Effect of the invention〕

As described above, in the present invention, several rhythm performance patterns are preset, and when outputting a performance, each of these preset patterns is switched and selected at each arbitrary timing of the rhythm performance. Even if there are as few as four patterns, you can select patterns for each timing and obtain a wide variety of rhythm patterns, allowing you to perform in a wide range of ways.
Moreover, pattern switching can be specified individually for only the timing you want to change, so it is easy to operate when changing patterns, and you can switch even during a performance.
For beginners, you can memorize patterns at each timing, and also recognize changes at each timing, which helps when creating rhythms.Furthermore, you can change patterns at specific timings of a rhythm pattern, making it easy to play. Among other things, it is effective in changing the subtle nuances of rhythm.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the present invention, Fig. 2 is an overall circuit diagram of the automatic rhythm performance device, Fig. 3 is a plan view of the switch unit IO, and Fig. 4
5 is a diagram showing the contents of the pattern memory 61, FIG. 5 is a diagram showing rhythm patterns, and FIG. 6 is a diagram showing a flowchart of rhythm pattern presetting and rhythm performance. 1... Pattern input means, 2... Pattern selection means, 3... CPU, 4... Writing means, 5... Reading means, 6... Pattern storage means, 7... Rhythm sounding means, Death...
...Tempo setting means, 1o...Switch section, 1
3...Pattern switch, 16...Timing switch, 61...Pattern memory,
71... Rhythm sound source group, 81... Ten l counter. Patent Applicant: Casio Computer Co., Ltd.”;:,,,”7 Agent: Patent Attorney Machi 1) Tadashi Toshi--゛, Ni-Nee-5-211 Kilo's Residence Diagram 1d Life Body Recovery Group 17-x'e to Figure 2 Figure 4

Claims (1)

[Scope of Claims] A pattern input means for inputting a plurality of rhythm performance patterns; a pattern storage means for storing a plurality of rhythm performance patterns input by the pattern input means according to writing by the writing means; A pattern selection means for specifying switching selection of each of the plurality of patterns stored in the pattern storage means at an arbitrary timing of the rhythm performance, and a tempo setting of pattern data of each rhythm performance selected by the pattern selection means. An automatic rhythm performance characterized by comprising: a reading means for reading out data according to a tempo set in advance by the reading means; and a rhythm sounding means for producing rhythm sounds according to the pattern data read out by the reading means. Device.