JPH0353277Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an automatic rhythm performance device that automatically generates rhythm sounds according to a rhythm pattern. By generating a specific percussion instrument sound such as a cymbal sound in synchronization with the first beat of a section, it is possible to easily get into the rhythm and to perform a rhythm performance rich in variety.

[Prior art]

Conventionally, in automatic rhythm performance devices, the rhythm pattern can be changed from a normal pattern to a fill-in pattern by turning on a fill-in switch while a rhythm sound is being generated according to a normal pattern of a specific rhythm type, such as a waltz. It is known that changes can be made to bring about changes in rhythmic sounds. However, in such conventional devices, the fill-in pattern is automatically returned to the normal pattern at the end of the measure after turning on the fill-in switch, so the listener does not get into the rhythm when returning to the normal pattern. difficult,
Furthermore, simply changing patterns made rhythm performance monotonous.

[Purpose of the invention] The purpose of the invention is to provide a new automatic rhythm performance device that can bring about a unique change in rhythm when returning to a normal pattern.

[Structure and action of the device]

The automatic rhythm playing device according to this invention includes: (a) a storage device (10 in FIG. 1) that stores a normal rhythm pattern and a plurality of fill-in rhythm patterns regarding the rhythm to be played; and (b) the plurality of fill-in rhythm patterns. (c) a fill-in operator (FIL in FIG. 1) for instructing the start of fill-in rhythm performance; (d) ) a signal generating means (20 in FIG. 1) that generates a timing signal synchronized with the end timing of each performance section of a certain length regarding the rhythm; (e) after specifying the normal rhythm pattern, the fill-in operator; In response to the operation, the fill-in rhythm pattern selected by the selection means is designated, and then, in response to a timing signal from the signal generation means, the designation of the fill-in rhythm pattern is canceled and the normal rhythm pattern is (2 in Figure 1)
2, 28, 34 to 42), and (f) rhythm sound generating means (24, 26 in FIG. 1) that automatically generates a rhythm sound signal according to the rhythm pattern specified by this pattern specifying means.
and (g) detection means for detecting that the designation of a specific one predetermined in a range smaller than the total number of the plurality of fill-in rhythm patterns has been canceled by the pattern designation means and transmitting a detection output. (52 in Figure 1), and (h) means for generating a specific percussion instrument sound signal in synchronization with the first beat of the performance section immediately after the detection according to the detection output from this detection means (54 in Figure 1). ,56,
24, 26) and .

According to the structure of this invention, in the rhythm performance section following the fill-in rhythm performance section, a specific percussion instrument sound such as a cymbal sound is added to the rhythm sound of the normal pattern at the first beat, and it is not just a rhythm performance section. It is possible to perform rhythms with more variety than in the case of pattern switching.

In addition, it detects that a specific one of multiple fill-in rhythm patterns has been canceled and adds a specific percussion instrument sound to the first beat of the performance section immediately after that, making it suitable for adding percussion instrument sounds. By specifying fill-in rhythm patterns in advance, addition of percussion instrument sounds is automatically prohibited for fill-in rhythm patterns that are not suitable for adding percussion instrument sounds.

〔Example〕

FIG. 1 shows an automatic rhythm playing device according to an embodiment of this invention.

Rhythm Sound Generation System The rhythm pattern generation circuit 10 consists of a ROM (read only memory) etc. that stores various rhythm pattern information, and includes a normal pattern generation section 12 and a fill-in pattern generation section 14.
Contains.

The normal pattern generating section 12 includes swing,
Normal pattern information corresponding to a large number of rhythm types such as disco, waltz, ballad, tango, etc. is stored, and the fill-in pattern generation section 14 stores similar patterns of the above-mentioned large number of rhythm types as one group (for example, , disco type 1
When divided into a plurality of groups (such as one group for Latin characters), four types of fill-in pattern information are stored for each group.

The rhythm selection switch (SW) circuit 16 includes a rhythm selection switch for selecting a desired rhythm to be played from among the many types of rhythms described above.
A rhythm type designation signal RS designating the selected rhythm type is supplied to the normal pattern generation section 12 and fill pattern generation section 14.

A fill-in variation selection switch (SW) circuit 18 is a variation selection switch for selecting any one of the first to fourth fill-in variations corresponding to the four types of fill-in pattern information described above. A fill invariation designation signal VS that specifies the selected fill invariation.
is supplied to the fill-in pattern generating section 14.

The read control circuit 20 includes a tempo clock generator,
It includes a counter, etc., and when the rhythm start switch ST is turned on, an address signal is sent to the rhythm pattern generation circuit 10 for reading pattern information.
AD. Note that the readout control circuit 20 derives a measure end pulse ME synchronized with the end timing of the measure for each measure, and a beat pulse BP synchronized with the timing of the first beat of each measure. .

The normal pattern generating section 12 generates normal pattern information corresponding to a specific rhythm type designated by the rhythm type designation signal RS as an address signal.
A normal pattern signal NPT corresponding to a specific rhythm type is sent out as it is read out in accordance with AD. This normal pattern signal NPT includes signals for driving various rhythm sound sources such as a bass drum, snare drum, conga, maracas, and cymbals. (OR) circuit 2
4 to the rhythm sound source circuit 26.

The fill-in pattern generating section 14 generates a specific fill-in pattern when specific fill-in pattern information specified by the rhythm type designation signal RS and fill invariance designation signal VS is read out in response to the address signal AD. A fill-in pattern signal FPT corresponding to invariation is transmitted. This fill-in pattern signal FPT also includes signals for driving various rhythm sound sources like the normal pattern signal described above, and when the gate circuit 28 is controlled to be conductive, it controls the gate circuit 28 and the OR circuit 24. Rhythm sound source circuit 2 via
6.

The OR circuit 24 provides a normal pattern signal NPT and a fill-in pattern signal for each rhythm sound source.
The corresponding sound source drive signal in FPT is ORed and sent, especially for cymbal sound sources, the cymbal sound source drive signal in normal pattern signal NPT,
Cymbal sound source drive signal in fill-in pattern signal FPT and cymbal sound source drive signal described later
It is designed to perform an OR operation with SYM and send it.

The rhythm sound source circuit 26 includes various rhythm sound sources as exemplified above, and generates the rhythm sound signal RHY by driving these rhythm sound sources in accordance with the corresponding sound source drive signals from the OR circuit 24.
is starting to occur.

When the gate circuit 30 is controlled to be conductive, the rhythm sound signal RHY is supplied to the sound system 32 via the gate circuit 30, and is converted into sound by a speaker or the like through power amplification or the like.

The fill-in switch FIL in the rhythm performance control system consists of a self-return type push button switch, and the state signal "0" or "1" corresponds to its off or on state, respectively.
is a T-flip-flop 34 for fill-in control.
and is supplied to the inverter 36. Further, the flip-flop 34 is reset-controlled by the output signal of the inverter 36 and the output signal of an AND gate 38 which receives the bar end pulse ME as input.

The output Q of the flip-flop 34 is supplied to the gate circuit 28 as a control input, while the output Q of the flip-flop 34 is supplied to the gate circuit 2 via an inverter 40 and an OR gate 42.
2 as a control input.

The break switch BRK consists of a self-return type push button switch, and the state signal "0" or "1" corresponds to its off or on state, respectively.
is supplied to a T-flip-flop 44 and an inverter 46 for break control. Furthermore, the flip-flop 44 is reset-controlled by the output signal of the inverter 46 and the output signal of an AND gate 48 which receives the bar end pulse ME.

The output of flip-flop 44 is provided as a control input to gate circuit 30.

Both flip-flops 34 and 44 are initially reset upon power up. After the power is turned on, if neither the fill-in switch FIL nor the break switch BRK is turned on, the output Q of the flip-flop 34 continues to be in the "0" state, and the output of the flip-flop 44 continues to be in the "1" state. Therefore, the gate circuit 22 continues to be conductive in response to the signal "1" obtained by inverting the output Q="0" of the flip-flop 34 by the inverter 40.
It continues to be in a conductive state in response to the output = “1”.

In this state, when the aforementioned rhythm start switch ST is turned on, the normal pattern signal NPT is supplied to the rhythm sound source circuit 26 via the gate circuit 22 and the OR circuit 24, and the rhythm sound source circuit 26 receives the normal pattern signal NPT. Then, a rhythm sound signal RHY is generated. and,
This rhythm sound signal RHY is supplied to a sound system 32 via a gate circuit 30. Therefore, the sound system 32 generates rhythm sounds according to the normal pattern of the selected specific rhythm type (for example, waltz), and a normal rhythm performance is performed.

Fill-in Mode When the fill-in switch FIL is turned on while the rhythm sound is being generated according to the normal pattern as described above, the fill-in mode control operation is performed. The control operation in this fill-in mode takes different modes depending on the operating mode of the fill-in switch FIL over time, and can be broadly classified into three types as illustrated in FIGS.

Figure 2 shows the operation when the fill-in switch FIL is turned on once in the middle of one measure.
When the flip-flop 34 is triggered in response to a fill-in switch signal as shown in (a),
In response to the output Q="1", the output signal of the inverter 40 becomes "0". Here, in the fill invariance selection switch circuit 18, the second
Or, assuming that the fourth fill-in variation is selected, a fill-in variation designation signal VS1 that specifies the first fill-in variation and a fill-in variation designation signal VS1 that specifies the third fill-in variation. signal
Since the output signal of the OR gate 50 inputting VS3 is "0", the gate circuit 22 becomes non-conductive in response to the output signal "0" of the inverter 40. At the same time, the gate circuit 28 becomes conductive in response to the output Q="1" of the flip-flop 34.

After this, at the end of the measure, the readout control circuit 2
0 generates the bar end pulse ME, which resets the flip-flop 34. As a result, the output Q of flip-flop 34 is
is “1” during the hatched period in Figure 2(b).
It happens due to the condition. When the flip-flop 34 is reset, the gate circuit 22 becomes conductive and the gate circuit 28 becomes non-conductive.

Therefore, when the second or fourth fill-in variation is selected, the rhythm pattern is switched from the normal pattern to the fill-in pattern during the period when the output Q of the flip-flop 34 is "1", and the fill-in rhythm is switched from the normal pattern to the fill-in pattern. is played.
Then, the output Q of the flip-flop 34 is “1”
When the period ends, the rhythm pattern returns to the normal pattern, and the rhythm performance becomes normal.

Unlike the above, in the fill variation selection switch circuit 18, the first or third
When the fill-in variation is selected, the fill-in variation designation signal VS1
Or VS3 is “1” and this signal “1” is OR
Gate circuit 22 via gate circuits 50 and 42
conduction. For this reason, the flip-flop 34
During the period when the output Q is "1", the gate circuits 22 and 28 are both conductive, and rhythm sounds are generated according to both the normal pattern and the fill-in pattern. This type of sound generation is called overlapping rhythms, and the combined effect of the rhythm of the normal pattern and the rhythm of the fill-in pattern produces a complex fill-in rhythm that is different from a simple fill-in rhythm. It is effective for

Figure 2 shows the operation when the fill-in switch FIL is turned on twice within one measure, and the flip-flop 34 is triggered by the first fill-in switch ON signal shown in (a) and then turns on the next fill-in switch. Reset by switch-on signal. Therefore,
The output Q of the flip-flop 34 is in the "1" state during the hatched period in FIG. This is the same as the case shown in FIG. 2 described above.

Figure 2 shows the fill-in switch within a certain measure.
This figure shows the operation when FIL is turned on and the on state is continued until the middle of the next measure.The flip-flop 34 is triggered by the rising edge of the fill-in switch signal shown in (a), and then the flip-flop 34 turns on the fill-in switch.
It is reset by the measure end pulse ME at the end of the measure in which FIL is turned off. Therefore, the output Q of the flip-flop 34 is in the "1" state during the hatched period in FIG. Returning is the same as in the case of FIG. 2 described above.

In the case of Fig. 2, after the fill-in switch FIL stops continuing on, the broken line P
When the fill-in switch FIL is turned on once again as shown in (b), the flip-flop 34 is reset and its output Q becomes "0" as shown by the broken line in (b). Therefore, in this case, the performance of the fill-in rhythm or overlapping rhythm ends when the fill-in switch-on signal P is generated, without waiting for the end of the bar, and the performance shifts to the normal rhythm performance.

If the fill-in control mode is changed each time the operation mode of the fill-in switch FIL changes over time, as illustrated in FIG.
Complex fill-in control can be performed with a single fill-in switch, and the user's intention can be easily reflected in automatic rhythm performance, making it possible to perform rhythm performance rich in variety.

Cymbal Sound Addition In connection with the fill-in mode control operation described above, if the fourth fill-in variation has been selected in advance by the fill-in variation selection switch circuit 18, the fill-in rhythm ends at the end of the measure. In this case, a cymbal sound is generated in synchronization with the first beat of the next bar. AND gate 52 is used to control such cymbal sound generation.
, an R-S flip-flop 54 for a cymbal flag, and an AND gate 56.

The AND gate 52 receives a fill invariation designation signal VS4 that specifies the fourth fill invariance, and the output Q of the flip-flop 34.
and the bar end pulse ME, and when the fourth fill invariance is selected and the output Q of the flip-flop 34 is "1", when the bar end pulse ME arrives at the end of a certain bar, An output signal "1" is generated to set flip-flop 54.

When flip-flop 54 is set, its output Q="1" is supplied to AND gate 56.
At this time, since the flip-flop 34 has been reset by the bar end pulse ME, the output signal of the inverter 40 is "1", and this output signal "1" is also supplied to the AND gate 56.

After the bar end pulse ME is generated, when the first beat pulse BP is generated, this beat pulse BP is
Cymbal sound source drive signal via AND gate 56
It is supplied to the OR circuit 24 as SYM. Note that the flip-flop 54 is reset at the falling edge of the beat pulse BP.

Therefore, after the fill-in rhythm ends at the end of a certain measure, the sound system 32 generates a cymbal sound in synchronization with the first beat of the next measure. Generation of such cymbal sounds is effective in attracting the listener's attention when the rhythm pattern changes from the fill-in pattern to the normal pattern, making it easier to follow the rhythm, and making the rhythm more varied.

Rhythm Break When the break switch BRK is turned on while the rhythm performance is in progress as described above, a rhythm break (interruption of the rhythm) control operation is performed. The control operation of this rhythm break takes a different mode depending on the operating mode of the break switch BRK over time, and can be broadly classified as shown in Figures 2 to 2 for the fill-in switch FIL.
There are three options similar to those shown in . That is,
As shown in Figure 2 (a), the break switch BRK
When , the output of the flip-flop 44 becomes "0" during the hatched period in FIG. 2(b), and the break switch is activated as shown in FIG. 2(a).
When BRK is operated, the output of the flip-flop 44 becomes "0" during the hatched period shown in FIG. 2(b), and when break switch BRK is operated as shown in FIG. ) The output of the flip-flop 44 becomes "0" during the hatched period.

By controlling the gate circuit 30 to be non-conductive in response to the output of the flip-flop 44 = "0", rhythm break control can be performed in different switch operation modes such as (a), (a), and (a) in FIG. Become.

Although the above embodiment has been shown as a hardware configuration, this invention can also be implemented using a microcomputer or the like.

[Effect of idea]

As described above, according to this invention, it is possible to detect the end of a fill-in rhythm performance section and generate a specific percussion instrument sound such as a cymbal sound in synchronization with the first beat of the following rhythm performance section. As a result, it is easy to get into the rhythm when returning to the normal pattern, and it is possible to perform a rhythm performance with a wide variety of variations. Furthermore, by specifying fill-in rhythm patterns suitable for adding percussion sounds in advance, the addition of percussion sounds is automatically prohibited for fill-in rhythm patterns that are not suitable for adding percussion sounds. This eliminates the need to judge whether or not to add percussion sounds or to operate special switches, which has the advantage of being particularly convenient for beginners.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an automatic rhythm playing device according to an embodiment of the invention, and FIG. 2 is a time chart for explaining the operation of the circuit shown in FIG. 10... Rhythm pattern generation circuit, 12... Normal pattern generation section, 14... Fill-in pattern generation section, 16... Rhythm selection switch circuit,
18... Fill-in variation selection switch circuit, 20... Readout control circuit, 22, 28... Gate circuit, 24... OR circuit, 26... Rhythm sound source circuit, 34... T-flip-flop for fill-in control, 52 , 56...For cymbal sound addition control
AND gate, 54...R-S for cymbal flag
Flip-flop, FIL...fil-in switch.

Claims (1)

[Claims for Utility Model Registration] (a) A storage device that stores a normal rhythm pattern and a plurality of fill-in rhythm patterns regarding the rhythm to be played, and (b) Selecting any one of the plurality of fill-in rhythm patterns. (c) a fill-in operator for instructing the start of fill-in rhythm performance; (d) generating a timing signal synchronized with the end timing of each performance section of a certain length regarding the rhythm; (e) after specifying the normal rhythm pattern, in response to the operation of the fill-in operator, specifying the fill-in rhythm pattern related to the selection by the selection means; (f) pattern specifying means for canceling the designation of the fill-in rhythm pattern and specifying the normal rhythm pattern in response to a timing signal; (f) automatically generating a rhythm sound according to the rhythm pattern specified by the pattern specifying means; (g) detecting that a specific one predetermined in a range smaller than all of the plurality of fill-in rhythm patterns has been deselected by the pattern specifying means; (h) means for generating a specific percussion instrument sound signal in synchronization with the first beat of the performance section immediately after the detection according to the detection output from the detection means; Rhythm performance device.