JPS5930594A - Synchronous operation of 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 The present invention relates to a method for synchronously operating a plurality of electronic musical instruments that can perform automatically.

Recent work, #l fl! ), the process of the performance is stored in a storage unit such as a floppy disk, and this stored data is outputted to perform automatic performance.
Many have been developed. By the way, it is impossible to prepare multiple 111 sub-instruments like this and operate each 141 sub-instrument in synchronization on the order of several m5 CG by manual operation, so the synchronized operation method described here is not possible. It becomes necessary.

Therefore, this invention was developed to connect several ik4 electronic musical instruments to several meters Sec.
This provides a method for synchronized operation of a single child musical instrument that can be operated in synchronization on the order of two electronic musical instruments.Each electronic musical instrument is provided with a first and second interface adapter, and each electronic musical instrument is connected via these interface adapters. The feature is that the operations of each m-sensor are synchronized by transferring commands between the i-sound instruments.

Hereinafter, one embodiment of the present invention will be described with reference to the front side.

Figure 1 shows that 2J+
, are you moved? If, it is a block diagram showing the formation of child instruments. In this figure, 1 is a CPU (central processing unit), which is connected to each part of the apparatus via a path line 2.

3 is a ROM (read only memory) in which the program used in 0PUI is stored, and 4 is a RAM (random access memory) in which each i data is written.
It is. Reference numeral 5 denotes a musical tone generating section, which forms a system tone signal based on the performance data supplied via the cpul, and supplies it to the speaker 7 via the amplifier 6. Reference numeral 8 denotes an input console, which includes a play switch, a stop switch, a record switch, and other control switches. 9 is the Misaki board. This keyboard 9 is provided with a key switch for detecting key operations and a keystroke strength detector for detecting the strength of keystrokes corresponding to each key (cup), and the output of each key switch and the keystroke strength detector is Each is supplied to the key data generating device 10. The key data generating device 10 detects a key in the p-on state by scanning the output of each key switch on the moving board 9, and outputs the key code and keystroke strength data of the key to the pass line 2. The floppy disk 11 sequentially stores performance data supplied from the aPU 3 via the disk controller 12.

In the above 411 yen configuration, when recording the performance data on the floppy disk 11, the key code and keystroke strength data output from the key data generator 'll1O according to the player's operation on the keyboard 9 are set to a constant 0PUI. The data is read in one lean-pulling cycle, and performance data is created based on the read data and sequentially written into the RAM 4. When 91 pieces of performance data have been stored in RAM 4, the performance data is transferred to the disk controller by -2.
12 to the floppy disk 11. In this case, the key code and key strength data outputted from the 0PUI key data generator 10 are sequentially supplied to the musical sound generator 5. As a result, a musical tone corresponding to the operation of the board 9 is generated from the speaker 7. On the other hand, when the performance data recorded on the 70-tube disk 11 is to be reproduced as a PJ, the 0PUI reads the performance data recorded on the floppy disk 11 and sequentially supplies it to the musical tone generator 5. As a result, a reproduced musical tone is generated from the speaker 7.

Therefore, each of the parts described above is the same as the structure of the conventional m/child instrument. By the way, the electronic musical instrument shown in diagram fA1 has
In addition to the above configuration, asynchronous communication interface adapters AO type A.1 and AO type Δ.n are provided, respectively, for synchronously operating a plurality of electronic musical instruments. Next, these AO work A, work and ■ will be explained.

Ac18, I and ] are respectively well-known as Mab550 made by Motorola, and their data line, interrupt terminal, etc. are connected to path line 2, and their transmission data terminal, reception data terminal 1D OD ( D[L
ta Carrier Detect) terminal etc. is terminal T.
, (or T2). 7 and 0PU
Once the command or data supplied from I is stored in the internal transmit data register, it is serially output from the transmission data terminal, and the serial data (straddle command) supplied to the receive data terminal is sent to the internal receive register. After being temporarily stored in the data register, it is output to pass line 2 as 8-bit parallel data. Bitten (!P
As will be described later, the UI detects contact with other T11 child instruments depending on whether the DOD terminals of the AO instruments A, ■, and ■ are at the II'' level.

Chain diagram 2 is a diagram showing a plurality of the above-mentioned Shigeko musical instruments arranged side by side. Hereinafter, for convenience of explanation, Shigeko's musical instrument (leftmost) will be referred to as M A S T E R, and hereafter 111r4 will be 5LA.
VE・l、SLAV E -2--5LAVE・
M, and the rightmost ■1 child instrument is E N D -5L.
Let it be AVE. Furthermore, MASTER is the highest-level electronic musical instrument, and END-8 and LAVE are the lowest-level ytx child instruments.

In Figure 2, MASTER's AO engineer A.
■ ΔOI of KaSL AVE 1 is attached to 8.I, 5IIIVV-1 (7) ACIIA-II is Sl,
Connected to AO engineering A-I of AVMi・2,...
, SLAVE-M AC engineering Δ11 is EN'D-8I+A
'VE's AO Kohachi is connected to I. This results in
11 skins with MASTER and 5LAVE・l 5LAVF
・Between l and 5LAVE-2, SLAV
Commands are transmitted between E-M and END/SL input vFj. Note that in this embodiment, no data is transmitted between the electronic musical instruments. In addition, the :o, on9i crystal of ACIA・■ of M input sTmR is pulled up to “H” level in 5LAVII・1, and the DOD terminal of ACIA-I of 5LAVE-1 is pulled up in MASTER, and 1LAVI
n・117) ACIA-11's D a D H: Quadruplets are pulled up within 5LAVE・z, and...
- The Den terminal of ACIA-I of END-8L8ME is pulled up in SLA'VE-M. On the other hand, the DCD terminal of ACIA.I of MASTETt and the DOD terminal of ACIA.1 of END-8LAVE are not pulled up. By connecting this DOD terminal, the 0PUI in each electronic musical instrument is connected to the MAS.
TER's OPU or SLA'VI-1~SLAVE-M
It is possible to detect whether the CPU is one of the OPUs or the END-SLAVE CPU.

Next, the operation of each lb: child instrument when the m child instruments shown in FIG. 2 are operated synchronously will be explained with reference to FIGS. 3 to 12. For convenience of explanation, it is assumed that there is one 5LAVE.

(1) MA+3'1ER in STOPC stop) state.

PLAY 5LAVE and LijND-3LAVE at the same time
(Musical sound reproduction) When using a shaped part (Figure 3).

In this case, the operator operates a play switch provided on the input console 8 of the MASTER. When the play switch is operated, MASTLI;R's cpul detects this and issues the command P RQ (Phyrequeg
t) to the ACIA-11, and also outputs a PLAY preparation command to the disk controller 12. ACIA
When command PRQ is supplied to AOIA-11, AOIA-1
t converts this command into serial data, outputs it from the transmission data terminal, and supplies it to the reception data terminal of ACIA.1 of 5LAVE.

When the command PRQ is supplied to the reception data terminal of ACIA-I of 5LAVE, the AO engineer ・■ sequentially reads this command PRQ into the internal register 7 data register,
When this reading is completed, an interrupt signal is output to 0PU1. 0PUI receives this interrupt signal and AOlA
-Read command PRQ from I and decode the read command. 1 and 0 PUI decodes the read command as command PRQ, first sends the command PRQ to ACIA. of END-8L8ME via ACIA.
I, then output to the disk controller 12 P
Output LAY preparation command. END-5LA
When command PRQ is supplied to ACIA-1 of VE,
This command PRQ is the CPU of END/3LA'VE.
1 and decoded. Then, apul outputs a PLAY preparation command to the disk controller 12/\ based on this decoding result. In addition, END・SLA'V:I
There is no 1n child instrument connected to the lower level of n, so 0PUI of END-3LAVE will not output the command PRQ.

Next, when the disk controller 12 of END-8LAVII completes the PLpx preparation, it sends the completion signal to 0PUI.
Output to. (!The PUI receives this completion signal and sends the command F E B (Play-enab e) to the AO engineer A.
- Transfer to 5LAVE's ACIA-1 via ■.

This command PEJ3 is read into 0PU1 of 5LAVI and decoded. Next, if the PLAY ready signal has arrived from the disk controller 12 at this point, 0PU1 of 5LAVB will immediately send it to M
8 TF, forward to ACIA・] of R. This command FEB is read into the MASTER's 0PUI and decoded. Then, if the PLAY ready signal has arrived from the Dinuk controller 12 at this point, the MASTER 0PUI will be sent immediately, or if it has not arrived, it will wait for the signal to arrive and send the command P S T (Pla, y 5t
art) is output to 5LAVE via AO:nA-11, and then a start command is output to the disk controller 12.

Thereafter, the performance data recorded on the floppy disk 11 of the MASTER is sequentially read out and supplied to the musical tone generating section 5 via the APU, whereby a musical tone is generated from the speaker 7. Also, command PST to SLA■
is supplied, 5LAVE's 0PUI reads and decodes this command PST. Then, based on the result of this M reading, the command PST is outputted to ]IND-SLAVE, and then a start command is outputted to the disk controller 12. As a result, 5LAVE's musical sound project production starts. Further, command PST is supplied to END-8LAVE, and END-3LA4K (7) OPUI reads this command ps'rf:g, decodes it, and outputs a start command to the disk controller 12 based on this VF reading result. As a result, reproduction of the musical tone END-3LAVE is started.

In this way, the musical tones of the three lj child instruments start to be played almost simultaneously. Here, if the command transmission speed between each AOIA is 960o baud and each command is an 8-bit $14 format, the transmission delay between each IL child instrument is approximately 1m5cc, and therefore within approximately 2m5ec. At the same time, the three 1'u and slave instruments can start playing music.

(2) M A S T E R,S in STOP state
5LAV in TOP state] IG%11'tIO・
END in WAIT (waiting for recording) state
-5LAVf at the same time PLAY-like peach, PLAY-like FJ,
When entering the REc/PLAY (data recording) state (4th
figure).

In case (7), the operator must set M A S T E R,
5 LAVE to 5 TOP form West Ni, Saida, END -5L
AVIn) By pressing the record switch, END
・Set 5LAVE to RE G -W An” state. Then, when you press the play switch, the same command transfer as in Fig. 3 is performed, and this causes MASTER
8LAVE, END-8LAV'K are almost simultaneous PT, A
The state is Y state, PLAY state, and REO-PLAY state.

Note that FIG. 5 shows the case where MASTER is in the I(Kc-PLAY state and SLA'VE and END-5LAVE are in the PLAr state, and the command transfer in this case is the same as that in FIG. 3).

(S) For the three 7s, each m child instrument is in a state where all the child instruments are playing the musical sound of the Nth song, and when the musical sound playback of the Nth song of each electronic ritual instrument ends at different times, each of the m child instruments The N+1 song of Raku! When 4 students are started at the same time (Figure 6).

Assume now that the reproduction of the Nth musical tone of SLAV']10 has ended (PLAY-END). In this case, the command 'IR' from S L A V' IIG
Q (Endrequest) and P RQ (Pl
ay request) is sequentially END-3LAV'F,
Output to. 0PUI of END-SLA■ reads and decodes the commands BRq and PRQ. Since the musical tone reproduction in END-3LA■ is currently in progress, the PRQ flag in RAM A is set based on the M reading result of the command PRQ, and the command processing is terminated.

Note that the command WRQ is a command that is valid only when the device is in the REO-RLAY state, and is ignored in this case. Next, when the musical tone playback of the MASTER is finished, the commands nRQ and PRQ are sent from the MASTER.
, is output to SLA'VFi. 0PU of 5LAVE
l is this command I RQ.

and "RQ 'f:, read, decode. And,
In this case, since command FEB has not arrived from END-SLAVE, P in RAM4
P, Q Set up 7 rugs. Next, I! 1ND-8LA
Assuming that the musical tone playback of VE has finished, KN D-3L
AVE's 0PUI checks the PRQ flag in RAM4. In this case, since the PRQ flag is set, the command PFB is transferred to 5LAVE. SLΔ'V IG or'u1 receives this command FEB and checks the PRQ flag. In this case, the PRQ flag is already set, so the command PEIB is output to the MASTER.

0PUI of M4 A S T E R is this command P
Upon receiving EJ3, it outputs the command PST to 5LAV1n, and starts playing the N-1st to 4th musical tones υil. In addition, 5LAVE that received the command PST outputs the command ps'r to END-3LAVE, and also outputs the command ps'r to END-3LAVE.
Start playing the +1st musical tone, and similarly issue the command PST.
The received ENDISLAVE is also tr> N +l 1u
Start playing the 11th musical tone.

In addition, Fig. 7 shows MASTER-+5LAVK→FiND
-8L='VE is a diagram showing command transfer at the end of the Nth musical tone recording or at the b-position.

(4) MASTER, SLAV
E plays music (pr, AY), and END-8LAV
E! : In a state in which ``REO・PLAY'' is being performed, the musical tone reproduction of IA ASTER is completed, and then the musical tone reproduction of SL A'VE is terminated (FIG. 8).

1. When the musical tone playback of MASTER is finished, the command)'ERQ and PRQ are output from MASTEn to each /rsLAVE, as in the case described above.u5LAV
0PUI of II is command PRQ.

The PRQ flag in RAM 4 is set based on this.

Next, when the musical tone playback of 5LAvx is finished, 5LAVE
command F8RQ and PRQ from RND/5LA
)' is output to E. END-5LAVEc7) Opt
]1 reads the command ERQ), and based on the decoding result, first reads the command S RQ (5top requ
est) to 5LAVE, and then outputs a 5TOP command to the disk controller 12. This results in
Er4D・5LAVE is in 5TOP state and null. 5 LAV
When command SRQ is supplied to E, OP of 5LAVE
U l Ka decodes this command SRQ, and based on the decoding result, first sends command SRQ to MASTER,
1-11 and then 5T to the disk controller 12.
Outputs OP command. With this, υ, 5LAVy is 5TO
P-like? It becomes flat. Also, MASTER HECO-
When SRQ is set to 1, M A S T 1!
0PU1 of iR decodes this command SRQ, and according to the decoding result, first re-transmits command SRQ to SL input vg, then outputs 5TopJi4 command to disk controller 12. In this case, the MASTER becomes 5TOP as well. )4 A
Command S R from S T E R to 5LAVE again
When Q is output, 0PUI of 5TJAVE outputs C and command SRQ to FND・5LAV]Ti, and 1
outputs a STOP command to the disk controller 12. Similarly, if from SLA'VK: N J) lS
L A VF command SRQ is issued, E
ND-SLAvxNOAPU 1) Outputs a 5TOP command to the disk controller 12.

In this way, all three electronic musical instruments are in the 5TOP autumn state.

Finally, from MASTER;R, issue the command SR again.
The reason why Q is output is that each If and child instrument are actually 5T.
This is to set it in the OP state.

(5) MASTW R%END-8LAV
When the musical tone reproduction of MASTER ends from the state where E is playing musical tone and 5LAVIIi is recording data (FIG. 9).

When the music playback of M A S T ] Ti R is finished,
MAST Nagi sends commands ERQ and PRQ to SLA'V
Output to E. The opui of 5LAV'E first reads M A S T E based on the decoding result of the command 几RQ.
R and END -5LAVE to RQ
, and then outputs 5TO to the disk controller 12.
Power up the P command. With this, p, sr, Avm are 5T
O1"lJ@. When the command SRQ is supplied to the MASTER, the MASTER's apul decodes it and converts the command SRQ to 5LAV as in the case described above.
5r to the disk controller 12.
Outputs the opji instruction.

When the command SRQ is supplied to the END-3LAVE, the 0PUI of the END-3LAVE decodes it and outputs a s'rop command to the disk controller 12. In this way, all three F'd slave devices are 5TO.
P-shaped convergence roars.

In addition, FIG. 1O shows the same state as shown in FIG. 9, when the musical tone reproduction of D: ND-8 and TJ A'VE is finished, and then the musical tone reproduction of MASTER is finished. This is a diagram showing the transmission of command 11 in the case of
When the musical tone reproduction of ER (ER) is completed, command transfer is performed in exactly the same manner as in FIG. 9.

(6) MASTIR performs data recording, SI, AVE
.

E, 1JD-3LAV] When the stop switch of MASTllB is operated while the li is playing music (FIG. 11).

When the M A S T E RCIJ stop switch is operated, λ-1 A S T E I ((7:) (1
! P U 1 detects this and the frame > to S RQ,
f SI, AV Ei, and 5T
The OP command is output to the disc roller 12. This causes the MASTER to become a s'rop. 5L
When command SRQ is supplied to AVE, SI, ATE
OPUI detects this and Bi N D-3L A
In addition to transferring the command SRQ to the VTIi, the 5T
An OP command is output to the disk controller 12. EN
When command SRQ is transferred to D-3LA4, T
CND-8TJAVE's (1! PUI detects this,
A 5TOP command is sent to the disk controller 12. In this way, all three electronic musical instruments play the same role.

(7) MAsTxR is in data recording state, S L A V
E-END・From the state where 5LAVI is playing music, 5LAVI+! Musical tone playback ends, and then m
ND-8LAVK (i"l When musical tone playback ends.

Immediately, when the musical tone playback at 5LAV' is completed, the commands πRQ and FRQ are respectively set to FND as in the case of Fig. 6.
-3LAVE is output. END・5LAVE(7)
OPUI reads P in RAMd based on command PRQ.
Set up the RQ7 rug. Next, when the musical tone playback of END-SL8 to E is completed, the PRQ flag is already set at this point, so IND-8 Otsu\Shokai\\\Ant ÷ 5%7
．． ? +-y is supplied to 5IrAVE, SLA'V
Command PEB is output from E to MAEITIR.

However, this 9th MA, 5TE1t is RII-PLAY
(data recording) status, therefore command FEB
is enthusiastically celebrated. Then, when the stop switch of M A S T E 11 is pressed, MASTER goes to 5 TOP.
As the condition becomes deaf, the command SRQ changes from MASTETI to 5LAV]n% END・5LAVEI”-.

They are transferred sequentially, and as a result, the three 1u child instruments are all 5
It becomes TOP state.

The above is a specific example of synchronous operation using command transfer. As mentioned above, each one of the devices shown in FIG. 2 has two asynchronous communication interface adapters inside.
Complete 〇Work/1. - Perform command transfer via I and l %c,
This is the second song, the third song...
It is designed to perform synchronized sake playing and other periodic operations.

Note that the command and command transfer method described above are merely examples, and it is of course possible to perform synchronous operation based on a different type of command and transfer method.

As explained above, according to the present invention, each electronic musical instrument is provided with a 1% 2nd Inter 7 Eighth adapter.
By transferring commands between each Fli child instrument via these Inter 7Ace adapters, the operations of each 11J child instrument were synchronized, so a simple Zepa (
With this configuration, it becomes possible to simultaneously convert a plurality of electronic musical instruments at the same time on the order of several msc=.

[Brief explanation of the drawing]

FIG. 1 shows T(
Figure 1 is a block diagram showing the PLL shown in Figure 1, and a block diagram showing multiple units connected serially, Figures 3 to 12. are not shown in FIG. 1, but are diagrams showing a specific example of command transfer between the Flj-sensors 114J when three electronic musical instruments of the L electronic musical instrument and VpF configuration are operated synchronously by the method according to the present invention. Yes. 1...Central processing unit i1 (OP U), AO
To Chohachi 1, fake CIA-11...interface adapter.

Claims (1)

[Claims] In the synchronous operation method of 1st to m)N electronic musical instruments in which performance data is recorded and played back under the control of a medium-heat processing device, the first to Nth 1'J child instruments are each provided with a first and a first one, respectively. Fitl”, z K (K
= -1 to N -1) +7J n'i, connect the second interface adapter of the child instrument to the first interface adapter of the (K+1)th 1.7 to each via a second Inter 7Ace adapter. +System H; 7 A method for synchronized operation of an electronic musical instrument, characterized in that the operations of each Hi/H sub-device are synchronized by mutually transferring commands.