JPS63264796A - Electronic musical instrument - 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 invention] The present invention relates to an electronic musical instrument.

[Prior Art] Conventionally, some electronic musical instruments generate rhythm sounds such as percussion sounds by manual performance operations. For example, a system is being considered in which a percussion instrument sound can be emitted by keyboard operation by switching modes.

[Problems with the prior art] However, in the above-mentioned device in which percussion instrument sounds are emitted by keyboard operation, normal performance cannot be performed using the keyboard while in the mode in which percussion instrument sounds are emitted from the keyboard. .

[Purpose of the invention] This invention was made in view of the above-mentioned circumstances, and its purpose is to allow performers to freely play percussion instrument sounds (rhythm sounds) that they want to play, such as intros, fill-ins, breaks, endings, etc. To provide an electronic musical instrument that can be used to perform a percussion instrument sound and does not require a special switch operation for restarting the stopped automatic rhythm sound or automatic accompaniment sound after the percussion sound is played.

[Summary of the Invention J In order to achieve the above object, the first invention of the present application is such that when the manual rhythm performance instructing means instructs to emit a rhythm sound, the control means emits the rhythm sound according to the instruction of the automatic rhythm performance instructing means. Stopping the generation of some or all of the rhythm sounds generated from the generating means,
The rhythm sound instructed by the manual rhythm performance instruction means is caused to be generated from the rhythm sound generation means, and furthermore, the restart means automatically restarts the generation of the rhythm sound that has been stopped by the control means at a specific timing. The main point is what you did.

Further, the second invention of the present application is made by expanding the first invention, and is arranged such that not only rhythm sounds but also automatic accompaniment sounds are stopped when the generation of rhythm sounds is instructed by the manual rhythm performance instruction means. The main point is

The third invention of the present application is made by applying the first invention to an electronic musical instrument having a keyboard, in which a manual rhythm performance instruction means is provided in the case, and the manual rhythm performance instruction means is configured to provide instructions as described above. Accordingly, the manual rhythm sound is generated instead of the automatic rhythm sound, and the restarting means automatically restarts the generation of the rhythm sound that was stopped by the control means in response to a key operation on the keyboard. shall be.

[Configuration of Example] An embodiment of the invention will be described in detail below with reference to the drawings.

Overall appearance configuration> Fig. 1 shows a plan view of an electronic keyboard instrument to which the present invention is applied.In the front side of the case of the electronic keyboard instrument, an accompaniment keyboard 1 and a melody keyboard 2 are provided. key i2
A power switch 3 is provided at the end of the electronic W-board instrument next to the instrument, and speakers 4.4 are provided at both ends of the accompaniment keyboard 1 and the melody keyboard 2 on the back side. This speaker 4
．． 4, an accompaniment mode lever 5, an automatic rhythm operation section 6, a pad rhythm operation section 7, and a melody tone selection key 8 are provided. The accompaniment mode lever 5 is used to play chords on the accompaniment keyboard l*; one-finger mode, which is performed automatically; fingered mode, which is automatically performed by holding down a chord; This is used to switch to each mode of the normal mode for performance. The automatic rhythm operation section 6 also includes rhythm selection keys 9 for automatic rhythm performances such as rock and disco.
A rhythm start/stop key 10 is provided for pressing the wrist to start automatic rhythm performance.

As shown in FIG.
6.17.18.19 are provided. The bat switches 16 to 19 emit a single attenuated sound such as a percussion instrument sound when pressed, and the pad tone selection switches 12 to 15 select the tone of the attenuated sound produced by the pad from a bass drum or low bongo. The bass drum pattern switch 11 is used to perform automatic rhythm performance using the bass drum sound, which is the most basic rhythm, even when the pad attenuation sound is emitted based on the operation of the pad switches 16 to 19. It's a switch. Also the first
The measure LED 20 shown in the figure is an LED that lights up at the beginning of each measure to indicate the start timing of the measure, and also a beat LED.
21 is an L button that lights up at the beginning of the 6th beat to indicate the rhythm tempo while playing the pad rhythm using the pad switches 16 to 19.
It is ED.

The melody tone selection key 8 is a key for selecting and specifying the tone of the melody tones played on the melody keyboard 2 and the accompaniment keyboard l.

Overall circuit configuration Next, the overall circuit configuration of this embodiment will be described.

The switching operations of the pad tone selection switches 12 to 15 are constantly scanned and determined by the control circuit 22, and the tone data is stored in the four N(
I) (I=O~3) registers are preset respectively, and the tone data is compared with the timbre data preset respectively in the four 0(I) (I-o~3) registers by the previous scan discrimination, and if there is a change. , the above new tone data is sent to the control circuit 22.
The timbre register 24 is preset to the corresponding area by the timbre register 24. The tone color switching register 23 has four N (
An I flag register is also provided for specifying each of I) and O(I).

One end of the pad switches 16 to 19 is grounded, and the other end is connected to a high level potential through a resistor. When each pad switch 16 to 19 is turned on, the other end goes to the lay level, and this Inverter 26~
inverted through 29, /age) low through 30
The level interrupt detection signal is input and held in the interrupt detection circuit 31 of the CPU 40, and this signal is detected by the control circuit 22 every 2 msec. When the control circuit 22 detects the interrupt detection signal, the inverter 2
The 4-bit pad on/off data from 6 to 29 is preset to the PAD l register of the pad on/off register 25, and the pad on/off data in PAD l is preset to the PAD l register of the pad on/off register 25.
In D2, the pad on/off data in PAD2 is transferred to PAD3.
will be transferred to each. PAD for the previous pad on data of PAD2 and the pad on data of PAD3
When the current pad-on data of No. 1 becomes rlJ for the first time, it is determined that pad switches 16 to 19 are turned on, and the pad on-off data of PAD3 is preset to the pad output register 32, and the pad on-off data of PAD3 of the working register 33 is preset. The pronunciation flag is turned on. Tone data corresponding to the pad switches 16 to 19 that have been determined to be on is read out from the tone register 24 and PCM
The rhythm sound generation unit 34 generates a rhythm sound signal, and the sound system 36 outputs a pad decay sound. Also, during automatic rhythm performance, a rhythm pattern is generated from the automatic rhythm sound generation control circuit 35. The data is sent to the PCM rhythm sound generating unit 34, and accompaniment pattern data corresponding to the rhythm pattern data is generated by the musical sound generating unit 3.
8, and rhythm sounds and accompaniment sounds are output.

When the pad switches 16 to 19 are turned on, the drum solo flag in the working register 33 is turned on and the automatic rhythm performance is stopped. However, if the bass drum pattern switch 11 is turned on at this time, the bass drum pattern switch 11, which is the most basic part of rhythm performance, is turned on. Only the rhythm sound from the drums continues to be output, and when the accompaniment key if is operated following the rhythm performance by operating the pad switches 16 to 19, the output of the pad attenuated sound is replaced. Automatic rhythm play will resume. If the output of the pad attenuation sound is stopped when the accompaniment keyboard l is operated on the fourth beat of the final beat, it will wait until the beginning of the next measure. At this time,
The accompaniment key on flag of the working register 33 is set by the control circuit 22, and a standby process is performed. While this pad decay sound is being output, the beat LED 21 is lit at the beginning of six beats in accordance with the tempo speed, indicating the tempo of the performance of the song.

When the pad switches 16 to 19 are turned on and "l" is set in the pad output register 32, rlJ is set in the chattering removal flag register 37, and the pad output register 32 is cleared.
After waiting for 30 msec, a chattering process that does not produce the same pad decay sound is performed. Further, the key code corresponding to the operating key of the melody key 512 is sent by the CPU 40 to the musical sound generating section 38, a musical sound signal is created, and the sound signal is emitted from the sound system 36.

[Operation of the embodiment] Next, the operation of this embodiment will be described.

Pad tone setting process> Tl! Due to the initialization process by turning on a.

Tone change register 23. Tone register 24, pad on/off register 25, working register 33, pad output register 32, chattering removal flag register 3
Each register of 7 has been cleared, and now the bass drum pattern switch 11 is on, and the pad tone selection switch 1 is on.
2 is set to handclap, pad tone selection switch 13 is set to snare drum, pad tone selection switch 14 is set to open high hat, and pad tone selection switch 15 is set to closed high hat, the CPU 40 executes the pad tone designation process shown in FIG. Start. That is, the CPU 40 sets the eff flag of the tone color switching register 23 to "0" (step A1), and presets the handclap tone data of the pad tone selection switch 12 to the N(0) register specified by I=0 (step A2). , O(0) is matched with the previous tone data (step A3). Since 0 (0) is still cleared, the two tone data do not match, and the CPU 40 returns N('0). In order to transfer the handclap sound to 0 (0), step A4) transfers the tone data of this 0 (0) to the PCMA of the tone register 24.
(Step A5).

In this way, the timbre of the pad decay sound can be selected from among a plurality of timbres.

Next, since the EF flag has not reached "3", the CPU 40 determines that the tone settings for all pad tone selection switches 12 to 15 have not been completed (step A).
6), increment the I flag by one to "1", step A7), and similarly perform the pad tone setting process for the pad tone selection switch 13 to which the next snare drum is specified; When the pad tone setting process is completed for the pad tone selection switch 14 where open no.\hat is specified and the pad tone selection switch 15 where closed high hat is specified, I
=3, the CPU 40 ends this process.

Furthermore, after this, if the pad tone selection switch 15 is switched to, for example, low bongo, the N(0) register will be preset with the low bongo tone data, and 0(0) will be preset with the above-mentioned closed hi-hat tone data. In step A3, it is determined that the two tone data do not match, and the low bongo pad tone setting process is performed (
Steps A4, A5).

In this way, the timbre of the pad decay sound can be changed in various ways.

Pad-on detection process> Next, operate the rhythm selection key 9 to select the desired rhythm, and turn on the rhythm start/stop key lO. Rhythm performance will automatically start, and the small WJ will start at the beginning of the measure.
As the LED 20 lights up, in parallel, the melody can be played using the melody key 112, and the accompaniment can be played using the accompaniment keyboard 1.

Then, as shown in the upper part of FIG. 9(A), when the pad switch 16 is pressed in the middle of the second beat, the interrupt detection circuit 31
Since an OW level interrupt detection signal is given, CP
As shown in FIG. 5, U40 determines that this signal is present (step B1) and sends rlooo indicating that pad switch 16 of pad switches 16 to 19 is turned on.
Pad on/off data of J to pad on/off register 2
PAD 5 is preset to PAD 1 (step B2). In this case, PAD2 and PAD3 remain cleared and both become ro 000J. And the CPU 40 is P
Take the logical sum of each bit of AD2 ro 000J and PAD3 roool, take the exclusive logical sum of each bit of this logical sum data and FAI, and logical product of each bit of this exclusive logical sum data and PADl and preset the resulting data in PAD3 (Step B3)
, this causes rlJ, "0" in PAD 1.2.3,
Only the bit that is "0" becomes rlJ, so in this case, data of rlo00J is obtained, and if PAD2.3
When there is rlJ in , it is not a true pad-on operation and is excluded, thereby allowing accurate determination of pad switch-on operation.

Next, the CPU 40 logically ORs each bit with rlooOJ of PAD3 and the pad-on data PAD ON from the chattering removal flag register 37, in this case "0000J," and adds each bit of this logical sum data and the above-mentioned pad-on data r0000J. The bits are logically ANDed and the resulting data is preset in PAD3 (step B4
), as a result, for the bit whose pad-on data is "0" after the chattering time has elapsed, only the bit where there is a new pad operation and PAD3 becomes rlJ becomes rlJ, so in this case r1000J data is obtained and chattering processing is performed.

Then, the CPU 40 determines that there has been a true pad-on operation since the first bit of PAD3 is rlJ (step B5), and inputs the PCMA bass drum tone data in the tone register 24 corresponding to this "1" bit. The PCM rhythm sound generation section 34 outputs the pad decay sound (step B6).

In this way, even when a melody is being played, rhythm sounds can be outputted in a desired pattern of performance sounds.

Next, the CPU 40 sets the pad sound flag in the working register 33 and transfers the pad on/off data of r1000J in PAD3 of the pad on/off register 25 to the pad output register (PAD 0UT) 32 (Steps B7 and B8). , the pad on/off data in PAD2 is shifted to PAD3, and the pad on/off data in PADI is shifted to PAD2 (step B9).
).

Thereafter, the CPU 40 detects the interrupt detection circuit 31 every 2 msec even if there is no pad-on, and the interrupt signal is
If not ow, PAD of pad on/off register 25
Shift the pad on/off data of 2 to PAD3, shift the pad on/off data of PAD 1 to PAD2) L, rooooJ to PADI (7) Preset the pad on/off data (step BIO).

Chattering Process> Next, the CPU 40 inputs the pad output register (PAD 0
Since the first bit of UT) 32 is set to "l" in step B8 above, it is determined that a pad-on operation has been performed.In step CI), the chattering removal flag register (PADON) 37 is set and pad output is performed. Clear the register (PAD 0UT) 32 (steps c2 and C3) and clear the chattering removal flag register (P
Wait until 30 msec has elapsed since AD 0N) 37 is set, and then write the chattering removal flag register (PA
D 0N) Clear 37 (Steps C4, C5)
As a result, for 30 m seconds after the pad-on operation, chattering processing is performed in step B4 of FIG. 5 in which the same pad decay sound is not produced.

Overall processing and automatic rhythm performance/accompaniment control processing> Figure 7 shows the main overall processing, in which step D
Other processes of 11 include the pad tone color setting process shown in FIG. 4, the pad-on detection process shown in FIG. 5, the chattering process shown in FIG. 6, and the automatic rhythm performance control process shown in FIG. 8, which will be described later. 1 After each of the above processes, the CPU 40 determines that automatic rhythm performance is in progress since the rhythm start/stop key IO is turned on (step D1).
Since the pad sound flag is set in the working register 33 in step B7 above, it is determined that there has been a pad-on operation (step D2), and the accompaniment key-on flag in the working register 33 is cleared in step D
3) As shown in the middle row of FIG. 9(A), the drum solo flag is set (step D4), the pad sound generation flag is cleared (step D5), and initialization processing for interrupting the automatic rhythm performance is performed.

Then, the CPU 40 determines that the current position is not at the beginning of the first beat (step El) based on the flow of automatic rhythm performance control shown in FIG. Since the drum solo flag is turned on, it is determined that the automatic rhythm performance must be interrupted (step E5), and the beat LED is turned on.
21 is turned on at the beginning of the 6th beat (step E6).

In this way, after the pad is turned on, the tempo of the music performance is indicated by the lighting of the beat LED 21, and based on this, the rhythm performance can be performed in accordance with the tempo by operating each of the pad switches 16 to 19.

Next, the CPU 40 selects the bass drum pattern switch 11.
is turned on, it is determined that the bass drum sound must be emitted in parallel with the pad attenuation sound emitted. In step E7), as shown in the lower part of FIG. 9(A), only the bass drum sound is emitted. (step E8), and then
Perform other processing (step Ell) and return to the main flow.

In this way, in this case, it is detected that the bass drum pattern switch 11 is turned on, and the bass drum sound, which is the most basic rhythm of the rhythm, continues to be emitted even during rhythm performance using pad attenuation sound, making the rhythm performance using pad attenuation sound even better. It can be rich and easy to play.

In this case, if the bass drum pattern switch 11 is turned off (step E7), the rhythm sound of the bass drum will not be output, and all rhythm sounds and accompaniment sounds will be masked, as shown in the lower part of FIG. 9(A). Automatic rhythm performance and accompaniment are completely interrupted.

In this way, during a rhythm performance using the pad decay sound, the automatic rhythm performance and the corresponding automatic accompaniment or normal accompaniment are automatically stopped, making the performance based on the pad operation stand out. There is no need to operate a switch to stop the performance.

Then, as shown in the middle row of Figure 9 (A), in the middle of the third beat, the accompaniment key! ! When you turn on the key of 11.

After determining that the automatic rhythm performance is in progress and that the pad sound flag and drum solo flag are set (steps D1, D2, and D6), the CPU 40 determines whether the accompaniment key is operated (
Step D7), after determining that it is currently in the middle of the third beat and not yet entering the fourth beat of the final product (step D8), the above-mentioned drum solo flag is cleared to cancel the interrupted state of automatic rhythm performance (step D9).

Based on this, the CPU 40 executes the flow process shown in FIG. 8 at the beginning of the next beat, and after determining that it is not currently at the beginning of the first beat (step E1), determines whether the drum white flag is cleared (step E1). E5), automatic rhythm performance and accompaniment are restarted (step EIO).

In this way, by simply operating the accompaniment key, the automatic rhythm performance and accompaniment that had previously been stopped or played only by the bass drum can be restarted in their entirety. The key operation and the operation for restarting automatic rhythm play can be performed at the same time, eliminating the need for a separate switch and its operation for restarting automatic rhythm play.

Furthermore, as shown in the middle row of FIG. 9(B), after the pad-on operation in the middle of the second beat, when the accompaniment key is turned on at the fourth beat of the final product, the CPU 40 performs one beat after the fourth beat in step D8. It is determined that the accompaniment key on flag is set in the working register 33 (step DIO
), at the beginning of the first beat of the next measure (step E
1) After determining whether both the drum solo flag and the accompaniment key on flag are on (steps E2 and E3), the drum white flag is cleared (step E4), and automatic rhythm performance and accompaniment are restarted (step EIO).

In this way, as shown in the lower part of Figure 9(B), the final product is 4
If the accompaniment key is turned on at the beat, the automatic rhythm performance and accompaniment will resume after waiting until the beginning of the next measure, allowing you to automatically change the content of the rhythm performance at a well-defined measure break. , also, when restarting automatic rhythm play at the beginning of a measure, you do not have to wait until the timing of the beginning of the measure.
You can also give instructions to change the rhythm performance in advance. You can give instructions to change the rhythm performance in advance without having to wait until the beginning of the measure to change the content of the rhythm performance.
) can be kept.

In the above embodiment, the press-operated pad switches 16 to 19 are used to emit the rhythm sound of the pad damping sound, but pad switches 16 to 19 of the tapping type may also be used. The accompaniment sound that is stopped during sound output may be automatic accompaniment or manual accompaniment.
The key to restart the rhythm or accompaniment sound is the accompaniment key L or the melody key! 1912 may be one specific key.

[Effects of the Invention] As described in detail above, this invention instructs the generation of rhythm sounds by operating the manual rhythm performance instruction means, so that the performer can easily perform rhythm sound generation simply by sequentially issuing instructions to generate rhythm sounds. It is possible to perform the desired rhythm performance, and it is possible to freely obtain rhythm performance patterns such as intros, fill-ins, breaks, endings, etc., and a wide range of performances can be performed. Then, the automatic rhythm performance or automatic accompaniment that had been stopped by the control means while the manual rhythm sound was being emitted is stopped at a specific timing, for example, w! Since it can be restarted by operating a key on the keyboard, there is no need for switches or operations to restart the rhythm performance or accompaniment in accordance with the progress of the performance at that time, which allows for fewer switches and smoother performance. .

[Brief explanation of drawings]

FIG. 1 is an overall external view of an electronic keyboard instrument to which the present invention is applied;
Fig. 2 is an enlarged view of the pad rhythm operation BL7, Fig. 3 is an overall circuit diagram of the electronic keyboard instrument, and Figs. 4 to 8 respectively show pad tone setting processing, pad-on detection processing, chattering processing, main overall processing, and FIG. 9 is a flowchart of automatic rhythm performance fist accompaniment control processing, and FIG. 9 is a time chart showing an example of a performance of an electronic keyboard instrument. l...accompaniment keyboard, 2...melody keyboard, 4...speaker, 6...automatic rhythm operation section, 7... Pad rhythm operation section, lO
...Rhythm start/stop key, 11...
...Bass drum pattern switch, 12.13.1
4.15...Pad tone selection switch, 16.
17,18.19...Pad switch, 21.
... Beat LED, 22 ... Control circuit, 23
...Tone change register, 24...Tone register, 25...Pad on/off register,
31... Interrupt detection circuit, 34...
PCM rhythm sound generation section, 35...Automatic rhythm sound generation control circuit, 36...Sound system, 4
0...CPU. Patent Applicant Casio Computer Co., Ltd. Agent Patent Attorney Machi 1) Shun M] ＋Petarishiku "Meyuma!" Figure 6 Zui〉70- Figure 7

Claims (1)

[Scope of Claims] (1) Automatic rhythm performance instruction means for instructing automatic rhythm performance according to a rhythm performance pattern; rhythm sound generation means for generating rhythm sounds; and instruction for emitting rhythm sounds by pressing operation. manual rhythm performance instructing means; and when the manual rhythm performance instructing means instructs to emit a rhythm sound, a part or part of the rhythm sound generated from the rhythm sound generating means according to the instruction of the automatic rhythm performance instructing means; a control means for controlling the rhythm sound generation means to stop all the rhythm sounds instructed by the manual rhythm performance instruction means; An electronic musical instrument characterized by comprising: a restart means for automatically restarting the occurrence of the occurrence. (2) The electronic musical instrument according to claim 1, wherein the manual rhythm performance instruction means includes a plurality of pads, each pad instructing generation of a predetermined rhythm sound. (3) Automatic accompaniment instruction means for instructing automatic accompaniment according to an accompaniment pattern, sound generation means for generating the instructed sound, manual rhythm performance instruction means for instructing the generation of rhythm sounds by pressing operations, and this manual. When the rhythm performance instructing means instructs the generation of rhythm sounds, the sound generating means stops generating accompaniment sounds according to the instructions of the automatic accompaniment instructing means, and the manual rhythm performance instructing means instructs control means for controlling the rhythm sound generated by the sound generation means to be generated by the sound generation means; and restart means for automatically restarting the generation of the rhythm sound stopped by the control means at a specific timing. Characteristic electronic musical instruments. (4) The electronic musical instrument according to claim 3, wherein the manual rhythm performance instruction means includes a plurality of pads, each pad instructing generation of a predetermined rhythm sound. (5) a keyboard having a plurality of keys, which instructs to emit musical tones by operating the keys; a musical tone generating means which generates musical tones based on musical tones instructions from the keyboard; automatic rhythm performance instruction means for instructing automatic rhythm performance; rhythm sound generation means for generating rhythm sounds; and manual rhythm performance instruction, provided in the same case as the keyboard, for instructing the emission of rhythm sounds by pressing operations. means, when an instruction to emit a rhythm sound is given by the manual rhythm performance instruction means, stopping the generation of rhythm sounds from the rhythm sound generation means in accordance with the instruction of the automatic rhythm performance instruction means; a control means for controlling the rhythm sound generation means to generate a rhythm sound instructed by the manual rhythm performance instruction means; and a control means for automatically generating the rhythm sound stopped by the control means by operating a key on the keyboard. An electronic musical instrument characterized by comprising: a restart means for restarting; (8) The electronic musical instrument according to claim 5, wherein the manual rhythm performance instruction means includes a plurality of pads, each pad instructing generation of a predetermined rhythm sound.