JPS60207195A - Automatic 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 invention] The present invention relates to an automatic performance device.

[Prior art]

Conventionally, various automatic performance devices have been developed that convert keyboard performance into digital signals and store them in a memory, and then read out and reproduce the performance data from the memory.

[Prior art mesocondylar point]

The above-mentioned conventional device only stores information such as the pitch and duration of the nails, making automatic performance monotonous and lacking in musical excellence.

[Purpose of the invention]

It is an object of the present invention to provide an automatic performance device capable of automatic performance that is more realistic than conventional devices.

[Key points of the invention]

By storing touch response data in accordance with the state of the lock, such as key depression speed or pressure, along with the keyboard performance, it is possible to sequentially generate musical tones with touch response during automatic performance. be.

〔Example〕

Hereinafter, one embodiment will be described with reference to the drawings. FIG. 1 is an overall circuit diagram of the automatic performance device. In the figure, 1 is a keyboard, and 61 keys, for example, pitches 01 to Oe, are provided for pitches. The keyboard 1 has a touch response function, and the scan signal and the signal Sol~5d61 which are periodically outputted by the key input section 2 are given to each section. The signals SC1 to SC8061 are signals for obtaining touch data, which will be described later. 2, and the touch response signals of each part are supplied to the touch data generating section 3.

Based on the key operation signal, the key input unit 2 generates a key code representing the pitch of the operated key, and when the key is on, "'1",
EY 0N10FF for the signal that becomes 0'' during key-off
is applied to the latch 4 and the musical tone generation circuit 5, and further a signal KEY oN which becomes one signal each at key-on and key-off
Give loFip to AND gate 6.

On the other hand, the touch data generating section 3 generates touch data according to the pressing speed of each part in response to the touch response signal, and supplies it to the latch 4 and a conversion ROM 7.8 to be described later.

The counter 9 is a counter that performs a counting operation using the output pulse of the oscillator 10 whose oscillation frequency changes according to the tempo volume VR4, and the count value is given to the input terminal IN of the RAM (random access memory) section 11 as time data. , - The ORAM unit 11 provided to one input end of the number circuit 12 applies read/write control to the control signal input to the read/write control input terminal 几/W, and to the increment signal input to the master input terminal INQ. By updating the address, the time data, the key code from the latch 4, the touch data, and the signal KEY 0N10FF are written as performance data by the keyboard 1 in the recording mode, which will be described later, and the performance data in the automatic performance mode, which will be described later. The data is read out through the output terminal OUT, and among these, the key code and signal KEYON10F are further sent to the musical tone generation circuit 5 through the gate G, and the touch data is sent to the change ROM 7.8 through the gate G. Further, the time data is sent to the other input terminal of the matching circuit 12 via the gate G.

Also, the on/off switch 13 is in the recording mode.
II. In the automatic performance mode, the signal A of τ1'' is output at 10/RE, and the signal AUTO/πEC is inverted and given to the other end of the AND gate 6.
It is applied directly to one end of the OR gate 14 and to the control input terminal of the gate G.

The output of the AND gate 6 is inputted to the AND gate 15 via a D-type flip-flop 16 in addition to being inputted to the AND gate 15 . Further, the one-shot signal output from the AND gate 15 is input to the delay circuits 18 and 19 via the OR gate 17, and is inverted and input to the OR gate 14. The output signal of the OR gate 14 is the read/write signal of the RAM section 11.
In addition to manually inputting the control signal to the write control input terminal R/W, the control signal is also input to the latch 4 as a latch signal.

Furthermore, the delay circuits 18 and 19 both have a delay time necessary for safely completing the reading and writing of one data to the RAM section 11, and the delayed output of the delay circuit 18 is the delay time of the RAM section 11. The delayed output of the delay circuit 19 is input to the reset input terminal R of the counter 9. Further, a coincidence signal from the minus number circuit 12 is input to the OR gate 17 and is used during automatic performance.

The musical tone generating circuit 5 supplies a musical tone signal to the voltage controlled oscillator 20 based on the key code and signal KEYON10F inputted during the recording mode and the automatic performance mode. This oscillator 2
0 is also given a signal obtained by D/A converting data from a conversion RORi (read only memory) that converts and outputs the touch data into corresponding data by a D7hg converter 21, and converts the musical tone signal into corresponding data. Filtering is controlled and applied to the voltage controlled amplifier 22.

On the other hand, data corresponding to the touch data outputted from the conversion ROM 8 is transferred to the amplifier 22 from the D/A converter 23.
is input after being D/A converted by the amplifier 22.
provides an amplifier 24 with a signal that is amplified and controlled according to the touch data on the output of the oscillator 20, and the output of the amplifier 24 is emitted from a speaker 25 as a musical tone to which a touch response has been added.

Next, specific circuits of the keyboard 1 and touch data generating section 3 will be explained with reference to FIG. keyboard 1, 2
6 is a signal output circuit that outputs the key operation signal and the touch response signal, respectively, and this signal output circuit 26. is provided for the first key (pitch a1) among the 61 keys, and the signal output circuits 262 to 266, which have exactly the same configuration, are provided for the remaining pitches 02 to 2 of CoI.
~One is provided for each part of the 61st stitch,
Its illustration is omitted.

The signal output circuit 261 has a switch S1 connected to the positive side of a power supply voltage source 1 and one end of a capacitor C1 connected to the positive side of the power supply voltage source 1.
The other end of the capacitor C1 is connected to the negative terminal of the power supply voltage source V1, and a switch S2 and a resistor R1 are connected in parallel to both ends of the capacitor C1, and one end of the capacitor C1 is gate-controlled by a signal SC1. Form I
It is connected to the common line L via an 'E'l' (field effect transistor) 27, and is individually provided with a switch S3 which inputs a scan signal and outputs it as a key operation signal. The common line L includes each signal output circuit 26.
The touch response signals from ~2661 are input in a time-division manner according to the key scan, and are given to the amplifier 28 in the touch data generation section 3 for amplification, and then further sent to the A/D converter 29.
The data is A/D converted and sent to the latch 4 etc. as touch data.

Note that the switches S+ and 82 are normally closed switches, and the switch S3 is a normally open switch. For convenience, symbols 30.31 indicate FETs in the signal output circuits 26□, 26111 whose gates are controlled by the signals 802.8061.

Next, the operation will be explained with reference to FIGS. 3 and 4. First, when presetting performance data from board 1 in RAM section 1, first turn on the on/off switch 13 and turn on the "o" signal AUTO/RE depending on the recording mode.
to generate. As a result, the AND gate 6 and the gate G are closed, and the OI+multiple signal is input to one end of the OR gate 14.

In addition, the key input section 2 is the signal output circuit 26□ of the keyboard 1.
~266, periodically scan signal and signal SC1
~SC! 61 is output.

Next, when the keyboard 1 starts playing a song and turns on the key of pitch A4 as the first musical tone, the signal output circuit 2646 for the gong of pitch A4 outputs the switch S3, which was also closed before the key was turned on. , S2, switch S1 is first turned off when the key is turned on, and then switch S2 is turned off.
turns off after a time proportional to the key press speed, then switch S
3 is turned on, and then the signal SO'l is output once and Ii'
E 'l' 27 is opened. In this case, the switches S1 and S2 are closed (on) before the key is turned on.
, the switch 83' is normally open (off), and the F
Since ET27 is also closed, charge flows into the capacitor C1 from the power supply voltage Vl via the switch S.
It is charged to its maximum value. Then, the charging current of the capacitor C1 is discharged to the resistor R1 side through the switch S2 until the switch S8 is turned off when the key is turned on, and then the switch S2 is turned off. Next, when the switch S3 is turned on, the input scan signal is given to the key operator section 2 as a key operation signal ("1") indicating the key-on state of the key of pitch A. Furthermore, the signal SC1 continues for a predetermined period of time.
1'' to FET 27, capacitor C1
The voltage signal corresponding to the remaining charge part in the FET 27
is applied to the touch data generating section 3 as a touch response signal for a key of pitch A. This touch response signal is a signal whose size is proportional to the key pressing speed, and is amplified by an amplifier 28, A/D converted by an A/D converter 29, and sent to the latch 4 and converted R as touch data.
They are sent to OM7.8 respectively.

On the other hand, the key input section 2 outputs a key code representing pitch A4 based on the key operation signal and gives it to the latch 4 and musical tone generation circuit 5, and also outputs a key code representing pitch A4, and also outputs a key code representing pitch A4, and outputs a key code representing pitch A4 to the latch 4 and musical tone generation circuit 5, and also outputs a key code representing pitch A4, and outputs a key code representing pitch A4, which is then applied to latch 4 and musical tone generating circuit 5. ' outputs the signal KEYON10FF and gives it to the latch 4 and musical tone generation circuit 5, and further outputs the signal KEYON10F which becomes one signal when the key is on and when the key is off.
F is output and given to AND gate 6.

Therefore, the signal KEYON1 is issued as a single signal when the key is turned on.
When 0FF is output, a single signal synchronized with it is output from the AND gate 6 and is applied directly to the AND gate 15 and via the flip-flop 16. In response, a single signal is output from the AND gate 15 and the OR gate 17 is applied. The signal is inputted directly to the delay circuits 18 and 19 via the gate, and is inverted and inputted to the OR gate 14. Therefore, the output of the OR gate 14 is '0'' only during the output of this single signal as a read/write control signal (write command) at the input terminal R/ of the RAM section 11.
The signal applied to W and latched in the latch 4 at that time and the time data from the counter 9 are written, and then applied to the latch 4 as a latched signal to store a new signal. Therefore, the pitch of the latch is A.
, the latch data for the house, key food, 1'' signal K E Y ON/σ Ding T is latched.
In the present case, invalid data is stored in the LAM section 11, and the data for actual performance consists of the following data. Then, after the writing is completed, the delay circuits 18 and 19
A single signal is output from each of them, and the counter 9 is reset, and the address of RAM 1≦11 is updated to 1@ground.

On the other hand, in the musical sound generation circuit 5, while the key of the tone at A4 is on, the key code being input and the signal KEYON1 of 1'' are input.
A voltage-controlled oscillator 2 generates a musical tone signal based on the 0F signal using photons.
Give to 0. In addition, since the conversion RObr 7.8 both gives data corresponding to the key data being input to each D/A converter 21 or 23, the D/A converted signal is transmitted to the corresponding voltage controlled oscillator 20 or 23. The input signal is input to the voltage-controlled amplifier 22, so that the musical tone of pitch A4 is given the touch response at that time and is emitted from the speaker 25.

When the key of pitch A4 is turned off, the signal output circuit 26
At 46, switches S1 and S2 are both normally closed, and switch S is normally open.

Therefore, the capacitor C1 is thereafter in a charged state, and a key operation signal of "0" indicating key-off is outputted and given to the key input unit 2. Therefore, in the key human power section 2, the pitch is A.
The key code of , and the signal KEYON/σ of "0" are applied to the latch 4 and the tone generating circuit 5, and the first signal KEYON10FF is applied to the AND gate 6.

Therefore, the AND gate 15 again outputs a single signal, which is sent directly to the delay circuits 18 and 19 via the OR gate 17, and then again after inversion via the OR gate 14 as a read/write control signal (write command) to the input terminal of the RAM section 11. R/W
and further provided to latch 4 as a latch signal. Therefore, the key code of pitch A4 that was launched in latch 4 at that time and the signal KEYON10 indicating key-on.
The FF, touch data, and time data Δt1 output from the counter 9 are stored at address 1 of the RAM section.

The latch 4 latches the key code of pitch A4 and the signal KpYoN7?5VV indicating the key-off state.
After that, the counter 9 is reset, and the RAM section 1
The address of 1 is updated to address 2. In addition, R in Figure 4
1@ address of AM part 11 and each character r of address 2, which will be described later.
KEY ON J and rKEY 0FFJ are respectively,
The signal KEYON/σY is 1'' or "0". Also, the symbol * indicates that the touch data is invalid or has been entered.

On the other hand, since the musical tone generation circuit 5 receives the key code of the pitch A4 and the signal KEY ON/OF of the pitch 0'', the musical tone signal is turned off, and therefore the sound emitted from the speaker 25 stops.

Next, when the bell of pitch B4 is turned on for the second turn, each circuit executes the same operation as when the key was turned on for the first turn, and as a result, the address 2 of the RAM section 11 is written as shown in A key code of pitch A4 and a signal of 60" according to the previous operation change are written in , and time data Δt2 at that time is also written in latch 4.
is the key code of pitch B4, the signal of 1" KEYON10
FF, second touch data T2 is stored. Furthermore, the speaker 25 emits a musical tone of pitch B4 to which the current touch response has been applied.

Hereinafter, the operation at key-off of the second pitch B4, the operation at key-on and key-off for the third and subsequent keys are the same as described above, and the state of the RAM section 11 is as shown in FIG. It becomes. When the performance is finished, an end code is written in the final address of the RAM section 11 using a predetermined method.

On the other hand, if the RAM section 11 is to automatically play a preset song as described above, the on/off switch 13
Turn off the 1” signal AUTO/ to indicate the performance mode.
REC! Output. Therefore, from then on, AND gate 6
is closed, the gate G is opened, and the output of the OR gate 14 is "1"; thus, a read command read/write control signal is constantly applied to the input terminal R/W of the RAM section 11.

Next, when a predetermined start operation is performed, each data at address 1 of the RAM section 11 is read out, and the output terminal CPU1 gate G
The key code A, KEY, is sent to the tone generating circuit 5 via
The ON ('''l'') signal KItYON10Y, the touch data T in the conversion ROM 7.8, and the touch data Δt in one end of the coincidence circuit 12.

time data are given respectively. Therefore speaker 2
From 5 onwards, the musical tone aA4 is given a touch response similar to the performance and starts to be emitted. Further, to the other end of the minus number circuit 12, time data I'1gi counted from "0" at the start of automatic performance is inputted, and is compared with the time data .DELTA.t1. Then, when a time period Δt1 has passed after the start of the performance, a coincidence signal of °1" is generated from the minus number circuit 12, and is passed through the OR gate 17 to the delay circuit 18.
given to 19. Therefore, after a predetermined time, the address of the RAM section 11 is updated to the next two addresses, and at the same time, the counter 9 is reset to start the next counting operation Ufj.

Therefore, from address 2 of RAM section 11, A4 key code,
KEY OFF (“O”) signal KEYON10F
F is read out and given to the musical tone generation circuit 5, and at the same time Δt
The time data of No. 2 is read out and applied to one end of the matching circuit 12. As a result, the first musical tone A is muted, and after a period of Δt2 has elapsed, the negative number circuit 12 outputs the next coincidence signal ("1 '"), and the second B4 from address 2 of RAMII is output. This continues until each piece of data indicating the state of tone production is read out.

The following operations for emitting and muting the second and subsequent notes are the same as those for the first musical tone described above, and when the °C end code is read out, the automatic performance of the song is stopped.

In the above embodiment, the touch response is detected based on the key press speed, but it may also be detected based on the needle press pressure. Also,
What changes according to touch data is the volume, tone, etc.
It is also possible to change the parameters of the leaves. Further, the A/D converter 29 in the touch data generating section 3 may be of a non-linear conversion type. Furthermore, in the above embodiment,
Although a monophonic performance format is used, it may be possible to perform a polyphonic performance.

〔Effect of the invention〕

As explained above, this invention is based on Sen! This is because it is an automatic performance device that can sequentially generate musical tones to which touch responses are applied, even during automatic performance, by storing touch response data according to the pressing state, such as the pressing speed or pressing pressure, along with the keyboard performance. , you can perform realistic L♂ automatic performances.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram of the gv1 performance device according to an embodiment of the present invention, Fig. 2 is a detailed circuit diagram of the keyboard 1 and touch data generating section 3, and Fig. 3 shows the data generation state according to the order of key operations. The figure shown in FIG. 4 is a data storage state diagram of the RAM section 11. 1...Keyboard, 2...Key human power
'flS, 3...Touch data generation section, 5.
...Musical sound generation circuit, 7.8...Conversion RO
M19...Counter, 11...RAM
5.12...-Several circuits, 13...On/off switch, 20...Voltage controlled oscillator,
21.23...D/A converter, 22...
・Voltage controlled amplifier, 25...Speaker, 26
1 to 266□...Signal output circuit, 28...
...Amplifier, 29...A/D converter.

Claims (1)

[Claims] From the output signal of the keyboard and the operating needle of this keyboard, musical sound data such as the pitch and length of the operating key and the pressed state of the operating key t14
a storage means for sequentially storing the musical tone data and touch response data of the operating keys from this means; An automatic performance device comprising musical tone generating means for sequentially reading musical tone data and touch response data of a key and generating musical tones for each of the operating hands.