KR940002136B1 - Repetitively performing method and apparatus in an electronic musical instrument - Google Patents

Abstract

An automatic play-repeating method includes the steps of: discriminating whether an automatic play-repeating mode is set or not; discriminating play modes; delaying notations stored in RAMs for n measures to play previously played notations at the same time of the currently played notations; and outputting the sound of an instrument to play the last notation at the same time of the currently played notation, thereby adding various effect sounds.

Description

Automatic repeat method and device of electronic musical instrument

1 is a block diagram of a conventional electronic musical instrument.

2 is a flowchart showing a sound generation control process of a conventional electronic musical instrument.

3 is a block diagram of an electronic musical instrument according to the present invention.

4 is a block diagram of the keyboard portion of the electronic musical instrument according to the present invention.

5 is a flowchart showing an automatic repeat playing method of the present invention.

6a to 6f are examples of musical scores for explaining the playing method of the present invention.

7A to 7G are memory data timing diagrams for explaining the playing method of the present invention.

* Explanation of symbols for main parts of the drawings

4: sound source IC 5: tone memory

6: D / A converter 7: Low pass filter

8: amplifier 9: speaker

10: keyboard portion 11: CPU, RAM (1) -RAM (N): recording memory

In the present invention, when the same melody is repeated when the electronic musical instrument is played, the second melody is automatically played when the first melody is played and the n-string delay is automatically repeated when the melody is played. The present invention relates to a method and apparatus for automatic repetitive playing of an electronic musical instrument, which is capable of playing a mixture of the current playing sound.

As shown in FIG. 1, a conventional electronic musical instrument includes a keyboard unit 1 for performance, a CPU 2 for controlling a corresponding musical instrument sound according to the keyboard performance information of the keyboard unit 1, and A memory 3 for temporarily storing information necessary for sound generation, a sound source IC 4 which outputs a musical sound of a predetermined pitch and a tone under the control of the CPU 2, and an instrument sound to the sound source IC 4; A tone memory 5 for supplying data, a D / A converter 6 for converting the instrument sound of the sound source IC 4 into an analog signal, and a low pass filter 7 for removing noise components from the analog converted instrument sound 7 ), An amplifier 8 for amplifying the filtered instrument sound, and a speaker 9 for outputting the amplified instrument sound, the operation of which is described with reference to FIG.

When the player operates the keyboard (key) of the keyboard unit 1, the key information is supplied to the CPU 2, and the CPU 2 outputs a sound source IC such that an instrument pitch of appropriate pitch and tone is output according to the input key information. 4) control. Under the control of the CPU 4, the sound source IC 4 decodes instrument sound data of a predetermined pitch and sound tone from the tone memory memory 5, and outputs the instrument sound (digital data). The output instrument sound is a D / A converter ( In 6), the signal is converted into an analog signal, and the noise component is removed from the low pass filter 7.

The filtered instrument sound signal is amplified by the amplifier 8 and output to the speaker 9.

On the other hand, in the conventional electronic musical instrument can be repeated playing the instrument sound using the record function, which is turned on when the record key provided on the keyboard unit 1, the performance information is stored in the memory (3) and at the same time as described above The operation of the instrument outputs the instrument sound, and when the PLAY BACK key is operated, the instrument information is output by decoding previous performance information stored in the memory 3.

However, the conventional electronic musical instrument repeating function only plays the music of the previous performance only after the end of one song, so the music with the same note delay and simultaneous play cannot be played because the music of the same performance cannot be played. There are disadvantages that are limited and not varied.

The present invention maximizes the performance of musical instruments by storing the currently playing music at the node or its score as the final score unit, and simultaneously enables the simultaneous playing of previously stored scores, and enables music performances of various song forms (melody). The purpose of the present invention is to provide a method and apparatus for automatically repeating an electronic musical instrument, which will be described below with reference to FIG. 3.

That is, the electronic musical instrument to which the automatic repeating apparatus of the present invention is applied is a keyboard for displaying whether the automatic repeating performance is performed, the selection of the playing type, the setting of the nodes to be delayed and the number of the nodes to be delayed, and the keyboard operation. Part 10 and the keyboard (key) performance information provided from the keyboard unit 10, including the performance of the automatic repetitive performance and the selection of the type of performance and the setting information of the section to be delayed and the type of performance to be delayed A CPU 11 for displaying the number of bars and controlling the sound source IC 4 and the first to Nth recording memories RAM 1 to RAM N to perform the corresponding function; and the CPU 11 1 to 1, which are stored while the performance information currently being played is shifted (RAM (1) -RAM (2)-… RAM (N) + RAM (1)) in the order of nodes according to the playing order under the control of N recording memory (RAM (1) -RAM (N)), sound source IC 4 which outputs musical instrument sounds corresponding to the keyboard under the control of the CPU 11, An inverter 12 for supplying a memory selection signal, a tone memory 5 for supplying instrument sound data to the sound source IC 4, and a D / A for converting the instrument sound of the sound source IC 4 into an analog signal With a converter 6, a low pass filter 7 for removing noise components from the analog-converted instrument sound, an amplifier 8 for amplifying the filtered instrument sound, and a speaker 9 for outputting the amplified instrument sound. The keyboard unit 10 includes an automatic repeat playing key (K1) for performing an automatic repeat performance, and a first selection key (K2) for simultaneously playing all the musical notes delayed n words in the playing form simultaneously with the current playing music. And a second selection key (K3) for simultaneously playing the final sheet music of the last section in the form of music and up key (K4) and down key (K5) for up / down the section number of the sheet music to be played. , The performance form indicator (DGT1) that displays the performance form, and the section number. It consists of the node number indicator (DGT2) / which is displayed. LED1 and LED2 are light emitting diodes for function display, K6 is record key, and K7 is repetitive performance key.

In the operation of the electronic musical instrument configured as described above, as shown in FIG. 3, when the player operates the keyboard of the keyboard unit 10, the key information is supplied to the CPU 11, and the CPU 11 responds to the input key information. Accordingly, the sound source IC 4 is controlled so that musical notes of appropriate pitch and timbre are output.

Under the control of the CPU 11, the sound source IC 4 decodes and outputs the instrument sound data of a predetermined pitch and sound tone from the tone memory memory 5, and converts the output instrument sound into an analog signal by the D / A converter 6. The noise component is removed from the low pass filter 7.

The filtered instrument sound signal is amplified by the amplifier 8 and output to the speaker 9.

On the other hand, as shown in FIG. 4, when the record key K6 provided in the keyboard unit 10 is turned on, the CPU 11 detects this and turns on the light emitting diode LED2, and subsequently plays information on operating the keyboard key. Is stored in the first to Nth recording memory (RAM (1) -RAM (N)), and the on-going play key (K7) is turned on, the stored performance information is decoded and the corresponding pitch and tone through the sound source IC (4). It outputs the instrument sound of the same as the conventional one.

In other cases, when the player turns on the auto repeat play key K1 as shown in Fig. 4, the CPU 11 detects this and turns on the light emitting diode LED1 and selects a play type and the nodes K2 and K3. It determines whether the up / down keys K4 and K5 for setting the number are operated and performs the performance control of the present invention according to the discrimination result.

That is, the automatic repeat playing method according to the present invention comprises the first step of determining whether the automatic repeat playing mode is set from the on / off of the auto accompaniment playing key K1, and if the determination result is not set, the play is completed. The second process of determining the type of play (ALL PLAY) and (LAST PLAY) from the on / off mode selection key (K2, K3), and if the determination result is all PLAY mode, the first to the first The sheet music played in the nth recording memory (RAM (1)-RAM (N)) is delayed by n measures set to the node up / down keys (K4, K5), and the sheet music played n words before the currently playing sheet music. The third process of outputting the instrument sound to be played simultaneously, and the second process discrimination results in the last sheet music (LAST PLAY) mode, the current performance by giving a delay of n measures set by the measure up / down keys (K4, K5) Even if the sheet music played n words before is played simultaneously In the third step of outputting the instrument sound and the second step determination result, in the LAST PLAY mode, the music score of the last keyboard key among the sheet music played before the n-th bar set to the knot up / down keys K4 and K5. And a fourth process of outputting the instrument sound to be played simultaneously on the sheet music being played at the present time. Referring to the following.

FIG. 5 is a flowchart schematically showing a method of playing the present invention with respect to a one-bar delay. If the automatic repeat playing key K1 is turned on after the initialization of the device following the initialization of the device, the CPU 11 enters the automatic repeat playing mode. The display light emitting diode LED1 is turned on in the set state.

The driving of the light emitting diode LED1 is the same as that of the conventional light emitting diode LED2 driving circuit.

Then, in the auto repeat play mode, it is determined whether the player has turned on all the sheet music playing keys K2 or the final sheet music playing keys K3. At this time, as a prerequisite, the player has already set the number of nodes to be delayed by operating the up / down keys K4 and K5 to "1", and the number "1" is a measure number indicator (DGT2) by the CPU 11. Are indicated by).

In addition, when the performance mode selection keys K2 and K3 are operated, the CPU 11 displays the performance mode under the automatic repeat performance mode on the performance mode indicator DGT1.

In this state of premise, if the key discrimination results in all the score playing modes, the currently playing key information (music score) is stored in the first recording memory RAM1, and the key information previously played, that is, one word before ( The music score is decoded in the second recording memory RAM 2. The information already played, that is, the performance information stored in the first recording memory RAM 1, is stored in the second recording memory RAM 2; The process of shifting to is preceded.

In this manner, the score of one word before decoded by the second recording memory RAM 2 is combined with the sheet music currently being played and simultaneously output.

This process will be described in more detail by taking the score shown in FIG. 6a as an example. In FIG. 6a, the performance information A1 of the first node = the performance information B1 of the second node and the performance information A2 of the third node = Since the performance information of the fourth section (B2) is the score that the player actually plays, the performance information (A1, A2) of the first and third sections as shown in Fig. 6b, and the performance information (B1, B2) with the first and third sections delayed by one section It is automatically repeated by all the sheet music playing process described above.

7A and 7B are timing charts of memory data in this case. That is, the actual played notes are the first and third nodes as shown in FIG. 7a, and the second and third nodes are delayed by one word from the performance information A1 stored in the first recording memory RAM 1 as shown in FIG. 7b. And stored in the second recording memory (RAM (2)) and the performance information of the first recording memory (RAM (1)) and the second recording memory (RAM (2)) are decoded together to produce a series of data as shown in FIG. It shows that a continuous instrument sound is output.

Another case of all the sheet music playing process described above is the case of repetitive performance of the song. In other words, the performance of the sheet music shown in Fig. 6d, which is delayed by one word in performing the performance of the sheet music shown in Fig. 6c, is played together as in Fig. 6e (turning song: delayed by one word).

Even in this case, the musical score actually played by the above-described repetitive performance method 3 of the present invention (the performance information for FIG. 6c is stored in the first recording memory RAM 1 as shown in FIG. 7d and delayed by one word) The performance information B1, B2, B3, B4 for FIG. 6D is shifted by one word from the first recording memory RAM 1 to the second recording memory RAM 2, as in FIG. Thus, both data are decoded at the same time as in FIG. 7f and output as a one-word delay song as in FIG. 6e.

On the other hand, when the final sheet music is played as a result of the second process determination in the repeating method of the present invention, the sheet music of the final keyboard key and the sheet music of the final keyboard key are currently played. Play at the same time.

That is, as shown in FIG. 5, the current last key information is stored in the first recording memory RAM1, and the last key information of the previous node is decrypted and played simultaneously. In the case of the sheet music shown in Fig. 6c as an example of the performance in this case, the sheet music (L1-L4) of the last keyboard key of each bar is delayed by one bar as shown in Fig. 6d, and simultaneously played. Similarly, the sheet music data L1-L4 of the last keyboard key one word before is shifted from the first recording memory RAM1 to the second recording memory RAM2 so that these two data are shown in FIG. Simultaneously decoded as described above, a repetitive performance is performed in which a sound effect as in FIG. 6f is added.

As described above, according to the present invention, when the second melody is played, the second node is automatically played by playing only the first node, so that it is convenient to play and the solo song can be played alone. Since it is possible to play, it is effective to add various voices and sounds to the music played.

Claims (3)

The first step of determining whether the automatic accompaniment performance key K1 is set from the on / off state of the auto accompaniment playing key K1, and if the determination result is not set, ends when the setting method is turned on. , The second process for determining the play type (ALL PLAY), (LAST PLAY) from the off, and if the determination result is all music play mode (ALL PLAY) mode, the first to the N-th recording memory (RAM (1)-) The music stored in RAM (N) is delayed by n measures set by the Knob Up / Down Keys (K4, K5), and the instrument sound is output so that the sheet music played before the nth word is played simultaneously with the sheet music being played. In the 3rd step and the result of the determination of the second step, in the LAST PLAY mode, the sheet music of the final keyboard key is currently being played from the sheet music played before the n-th bar set to the Knob up / down key (K4, K5). In the fourth step of outputting the instrument sound to be played at the same time Automatic repetitive playing method of the made electronic instrument. In an electronic instrument that decodes keyboard performance information and outputs musical notes of pitches and timbres corresponding to the keys from the IC and timbre memory. Whether or not to perform the automatic repetitive performance including the keyboard portion 10 for displaying the shape and the number of nodes to be delayed and the keyboard operation, and the key (key) performance information provided from the fraudulent keyboard portion 10; The sound source IC (4) and the first to Nth recording memory (RAM (1) -RAM (N)) are displayed for performing the corresponding function while displaying the playing type and the number of bars to be delayed according to the selection and setting information of the bars to be delayed. CPU 11 performing control and the performance information currently being played under the control of the CPU 11 are shifted in the order of nodes according to the playing order (RAM (1) + RAM (2) +… RAM ( N) + RAN (1)), and includes first to Nth recording memories (RAM (1) to RAM (N)). The device automatically repeats playing an electronic instrument characterized in that. 3. The keyboard unit (10) according to claim 2, wherein the keyboard unit (10) includes an automatic repeat playing key (K1) for performing an automatic repeat performance, and a first selection key for simultaneously playing all the musical notes delayed n words in the playing form simultaneously with the current playing music. (K2), a second selection key (K3) for simultaneously playing the final sheet music of the last section in the playing mode, and an up key (K4) and down key for up / down the section number of the sheet music to be played. (K5), a playing mode indicator (DGT1) for displaying the playing form, and a bar number indicator (DGT2) for displaying the bar number.