JPS5835583A - 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] In order to be able to perform a practice performance of a piece of music by yourself, it is possible to memorize a piece of music in advance. There is a system that compares each musical tone of a piece of music with the musical tone specified by the Imaichi operation and reports whether or not it has been played correctly. electronic musical instruments based on patent applications, etc.). Two types of storage methods are used for each musical tone constituting the above-mentioned music: one in which both the pitch and duration are stored, and the other in which only the pitch is stored.

By the way, when practicing with the above-mentioned electronic musical instrument, if you press a key incorrectly or get stuck during practice, you will have to start all over again from the beginning. This invention was made against the background of the above-mentioned circumstances, and by dividing a piece of music into predetermined units, for example, measures, and reading it out, even if you make a mistake in starting the first part of the song, you can start the song again from the beginning. Instead, the purpose is to provide an electronic musical instrument that allows practice to be resumed from the beginning of the wrong measure.

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

FIG. 1 shows the circuit configuration. In addition, in the circuit of this FIG. 1, the 2nd v! Special circuit symbols shown in J are used.

That is, Figures 1 and 2) explain the correspondence between the circuit symbols of the present application and general logic symbols, and Figures 2 and 2) show application examples.

In Fig. 1, the key operation signal output from the keypad 1 is given to the encoder 2 and encoded into the key code M'POI or MPQ2 of each key. be done.

The key code MPOI is then applied directly to the matching circuit 3 and to the musical tone generating section 4 via the transfer gate G2, and the key code MPO2 is further applied to the musical tone generating section 4'. Note that the above-mentioned key suite MPOI is a key code for practice performance, and on the other hand, key code P02 is a key code for normal enshun maki.

The memory 5 is made up of, for example, a ROM (read-on memory), in which data for each musical tone of an exercise piece is stored in advance; and during practice performance, musical tones are read out in units of one measure under the control of a succession control circuit, which will be described later. , its musical tone datum P0
is directly applied to the tone generator 4 via a transferer (transferter) 81 and directly to the matching circuit 3.

Next, the configuration of the read control circuit will be explained. In this embodiment, one bar is divided into 16 steps (0 to 15 steps). That is, the 31st! S! While the 16 tone datums shown in FIG. 1 and FIG. have.

The input terminals M・～M3 are connected to the output terminals q・～q3 of the latch 7.
The output data from the input terminals 1 to 3 are inputted in a circular manner, and the adder 6 inputs the input data to the input terminals M to M3 to the input terminal 1.
・Add (+1) the input data to % and send the resulting data to output terminals 80 to I! It is output from Is and input to the latch 70 input terminals D. to Di. This latch 7 outputs at the cycle shown in FIG. 3, or is applied as a click by reading the four clocks I, and latches the input data. The latch data is then given to the memory 5 as address data for specifying the address of each tone within one bar, and is also circulated to the adder 6 as described above.

The output terminal 0 of the adder 6 is applied to the input terminal 14 of the adder 9 via an analog gate 8. Further, the output data from the output terminals q4 to q. of the latch 10 are cyclically input to the input terminals 4 to 4 of the adder 9. Then, the adder 9 adds the input data of the input terminal A4-M and the input data of the power terminal B4, and outputs the resultant data from the output terminals s4-8@ and applies it to the latches lD4-D. The twitch 10 reads the above click φI and the vector addresses each measure into the memory 5, which is applied as address data 1 to the adder 9 as described above@! be done.

The above click φt is connected to the computer via the inverter 11)
12 control input terminals, and this tartuter φt
is input to the Antogame) 13. anime) 1
2 also contains the output data of latch 7 (orter) 141
．． 18S16 and an inverter 1γ. And the output of the computer game) 12 is B- as the signal 8.
It is applied to the seven input terminal 8 of the S-type seven lip pump 18. □ On the other hand, connect the control input terminal of Antogame) 13 to the latch □
The output data of 7 is inputted via the anime/game 21. And Antogame) 130' output is a signal! And take it!
A voltage is applied to the input terminal of the 7W 22.Then, the output of the output terminal q is applied to the 7W 22 as a compensation. In addition to controlling the gate, it is also applied to the control input terminal of the AND gate 24.The set output terminal qH4 of the 7 lip 70 knob 18 is also input to this AND gate 24. ,
Further, the output thereof is applied as a signal we to the control input terminal of the above-mentioned game controller 8 to control the controller.

The detection signal of the matching circuit 3 is applied to the 7-rip 7-p 26 via the inverter 25, and is also applied to the 7-rip 7-p 26 which is applied to the control input terminal of the ant game 27.
The output q of 6 is given by the above-mentioned ant game) 27&:, and the output ffL? of the AND gate 27 is given. is flip flip 18
Nori Nanatsu) is given to the input terminal east. Incidentally, the above-mentioned Arrival 7-P 26 is driven by a cutter φ2 (having a frequency 1/! times the frequency of the above-mentioned Cutter φI) shown in FIG. 28 in the figure is a speaker.Next, the operation of the above embodiment will be explained with reference to the time charts of FIGS. 3 and 4. Pub switch (as shown)
Turn on and start the practice performance. At this time, the output signal M1g of the 7-rip 7-4 22 is G0". For this reason)
Transfer gate G1 is opening, while transfer gate G2 is closing.

On the other hand, since the resistor φt is applied to the input terminal 1 of the adder 6, the adder 6 receives +
1 Execute the operation 0 Therefore, the result data is “000
0J, "0001", ... rl 111", and are circulated through the latch 7 and adder 6, while
-Given to Mineri S @ 1 adder 9, latch 10. The data being circulated by the adder 9th circulation circuit is now "000" and is given to the memo 95. As a result, each musical tone in the first measure is read out from the memory 5 with the address specified, and the musical tone datum re is transferred to the musical tone generating section 4 via the transfer module Gl.
O, who is given to him, listens to this and introduces himself.

The end of the first measure mentioned above means that the output of latch 7 is "
In step 15 of 1lllJ, Antogame) 21
The output signal 8 becomes Gl'' and opens 1 ant game) 13. Therefore, the next output signal φt(-t
In synchronization with @w (see Figure 4), the output signal of the AND gate 13' becomes "1", driving the 7 lip 7a knob 22 and bringing its output q into the @1m state.Therefore, the signal Ml becomes @1. 1 m (see Fig. 4).After 1, the transfer gate G'1 is closed and the transfer gate G'2 is opened.In addition, in step 15, the Yuta Tsuku φ
At the timing of the falling edge of t, the synchronization signal UO also becomes G11, opening ant game)8. However, in this case, the fourth
[As shown in the figure, the signal UO becomes 111, and the
) 8 is opened, the adder 6 outputs a carry signal a. As a result, the adder 6 outputs data ro OOOJ and moves to the next step 0. Therefore, at the above point in time, the signal @1' is not output from the anime game) 8, and therefore the adder 9 does not execute the +l operation at that time, and the result data remains "000", that is, the first bar. Therefore, from now on, each musical tone of the first measure will be addressed again and output from the memory 5 one after another. And the next 0~
During the 15th step, the transfer gate G1 is closed as described above, so the musical tone datum ya from the -h memory 5 is not sent to the musical tone creation section 4, and the first undistorted data of the matching circuit 3 is sent. Practice your songs using Keymate 1 key operations.
Start playing. At this time, the key output from the coder 2 according to the key operation;
and the sound will be emitted from one speaker 28.
The key food M)01 is also applied to the matching circuit 3 at the same time, and the musical tone datum is also read out from the memory 5. A match with O is detected, and it is determined whether or not the key was operated correctly.

Now, if we consider the case where all the musical tones of the first measure can be operated accurately, at the end of the practice performance of the first measure, that is, at step 15, the signal 18 becomes @1m again,
In response to this, the signal is synchronized with the next click φt! but@
11, and the carry signal 0 of 7 retwo 6 is output as @11, and at this time, the AND gate 8 (signal V
O is applied to the input terminal B4 of the adder 9 through the overlapping ''11 (see Figure 4). Therefore, the adder 9 performs a +1 operation, and the resultant data is stored in the second bar indicated by roolJ.
, and henceforth, [11 is held.

Therefore, from now on, each musical tone datum Pa of the second measure is read out from the memory 5 and given to the musical tone creation section via the re-opened transferer (Gl), so that the student can then stop key operations and perform the automatic performance. Listen to the musical tone of the i-th measure and check it.

On the other hand, if a mistake is made in the operation of the musical tone that is the practice performance of the first measure, the coincidence output of the coincidence circuit 3 is outputted as "0" for that musical tone, and the 7-rip, 70-tube 26 is played as Cera F. Here, if the operation in the next musical tone is also incorrect, the matching output for the next musical tone will also be output as @0'' and 1. Therefore, at that time, the AND gate 27 output signal @1FL T will be -1'', 7 lip 70 tube 1B
At the end of the first measure of the practice performance for the second step O, adder 6 sends a carry signal -tO・(
11”) is output, it is not applied to adder 9, and its +
1 operation is prohibited. As a result, the musical tone datum PG of the first measure is read out from the memory 5 again, and when the musical tone datum PG of the first measure is finished listening to the musical tone datum PG (currently being opened), the practice performance (key operation) of the first measure is resumed.・In this way, automatic performance and manual performance are repeated alternately until the musical tone of the first measure can be pressed correctly. ・By the way, as mentioned above, 7 rip 7a knob is driven by 26a & rita tsuk φ2. from,
While the next musical note is being driven by Rita Tsukuu, several Nori ptsuku-2 are output, and for this reason, even if there is a slight delay in key operation during practice performance, this accompaniment is ignored, and for a while It is suitable for 1 practice without being treated as an if key operation error.

In the above embodiment, the memo 95 is used as a ROM, and the number of measures that can be stored in the memory s is 4i, which may be 1° or 4i, so that the desired practice piece can be written from outside.

Further, in the above embodiment, the music is divided into l-measure units for practice performance, but the practice performance may be performed in two or more measures (and various other modifications are possible within the scope of the gist of the present invention).

As explained above, the present invention provides an electronic musical instrument that stores music for practice performance, in which practice performance can be performed while dividing and reading out the music in predetermined units (for example, one measure). Because of this, even if you make a mistake in pressing a key during practice, you can return to the beginning of the wrong unit (measure) and repeat the practice.Therefore, there is no need to return to the beginning of the song as in the past (1. Since you can practice only the wrong units over and over again, you can practice the song more reliably, and it also has the advantage of making it easier to write notes.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram of an embodiment of the present invention, and the second w! J
is the 18th! An explanatory diagram of special circuit symbols used in the circuit of I, Figures 3 and 4 are tie and muchashi to explain the operation. 0 1...keyboard, 2...encoder, 3...matching circuit , 4... musical tone creation section, 5... memory, 6, 9
... Adder, 7.10 ... Latch, 18, 22.2
6...7 lip 7W tube, 2B/-1 speaker. Patent applicant Casio Computer Co., Ltd. Figure 2 (A) Figure 2 (B) Figure 3 Figure 4 s'-L

Claims (1)

[Claims] a storage means capable of storing and setting a predetermined musical piece in advance; a key manual means capable of selectively specifying musical tones of each pitch; and each musical tone designated for each key operation of the key manual means and the storage means. Comparing means for comparing and detecting each musical tone included in each predetermined unit constituting the stored music piece, and when a match is detected by the comparing operation of the comparing means, each musical tone in the next predetermined unit is stored in the memory. The electronic musical instrument is characterized by comprising readout control means for re-reading each musical tone within a predetermined unit in which a mismatch is detected from the storage means when a mismatch is detected.