JP2546467B2 - Electronic musical instrument - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention combines a plurality of pieces of data such as accompaniment style data (data for specifying rhythm), tempo data, tone color data, etc., which are matched to a tune phase, and stores them as registration data, which is then switched The present invention relates to an electronic musical instrument that can be read out by an operation to change the settings at once.

[0002]

2. Description of the Related Art There has been an electronic musical instrument in which an accompaniment style or tone color is instantly switched when a resist switch or a style switch is pressed during automatic accompaniment with a certain accompaniment style. In such an electronic musical instrument, even if a switch operation is performed in the middle of a beat or a bar, the accompaniment style and timbre are instantly changed, which is not musically preferable. Therefore, when playing such an electronic musical instrument, it is necessary to operate the switch accurately at a switching timing such as a bar line or a beat. However, for example, in the case of a musical instrument such as an electronic organ that is played with both hands and feet, there is a case where there is no room to turn on the switch at that timing. Further, if the player's skill is poor, the switch-on timing may be shifted.

For this reason, an electronic musical instrument has been proposed in which the resist is not immediately switched even when the resist switch is turned on, but is switched after waiting for a certain timing (for example, a beat or a bar start).

[0004]

However, when switching the accompaniment style, it is preferable to switch the registration data after waiting for a beat or bar line, but even if the accompaniment style does not change, it is synchronized with the bar line or the like. If the register data is switched by using the register data, even if the performer wants to switch the register data in the middle of a measure immediately, even though the tone and style match, there is a drawback. It was

An object of the present invention is to provide an electronic musical instrument that determines the switching timing according to the accompaniment style of registration data before and after switching.

[0006]

The present invention provides a plurality of accompaniments.
An accompaniment pattern storage means for storing a pattern,
A plurality of accompaniment patterns stored in the accompaniment pattern storage means
An electronic musical instrument that selectively reads and automatically accompanies
Electronic whose operation is controlled according to the set control data
In musical instruments, and the resist storage means for plural sets stored resist data consisting of the style designation data and control data for specifying the accompaniment pattern, and the resist selection means for selecting Les resist data, selected by the resist selection means
Style specification data included in the registered resist data
At that time, the accompaniment pattern star used for automatic accompaniment
If the two match, the previous
Of the resist data selected by the resist selection means
Immediately set the control data of
The recording is performed at a predetermined timing in the automatic accompaniment.
Set the resist data selected by the gist selection means.
And a switching means for switching.

[0007]

According to the present invention, a plurality of resist data are stored in the resist storage means. Registration data is accompaniment pattern
It contains control data such as style designation data and tone color data and tempo data specifying the over down. A set of registration data is set in the musical tone signal forming section and a performance is performed. The resist data set in the tone signal forming portion is selected by operating the resist selecting means. Resist
When a new data is selected,
File and the accompaniment used for automatic accompaniment at that time.
Comparing the style designation data Kanade pattern, if they match, changing immediately Seioroshi data changed in real because there is no unnaturalness, when the style designation data are different, the separated timing It is more musically preferable to change (bar line or beat timing), so wait until that timing and change all registration data .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic musical instrument which is an embodiment of the present invention will be described with reference to the drawings. The tone forming circuit 10 that forms a tone signal based on the input data includes a key detection circuit 12, a read control circuit 15, a switching control circuit 16, a tone color switch 24, an effect switch 25, and a volume slider 26 (A / The D conversion circuit 26a) and the other switch 28 are connected. The tone signal output of the tone forming circuit 19 is input to the D / A converter 18. A keyboard 11 is connected to the key-depression detection circuit 12, detects key-on / off of the keyboard and outputs the note number and key-on signal. The key-on signal is input to the tone forming circuit 10 and the note number is output to the tone forming circuit 10 and the chord detecting circuit 13. Tone switch 24
Is a switch for manually changing the tone color of a musical tone to be generated. The effect switch 25 is a switch for setting the effect (vibrato, reverb, etc.) of a musical sound to be produced. The volume slider 26 is an operator for setting the volume of the musical sound to be formed.

The read control circuit 15 includes a code detection circuit 1
3. In addition to the accompaniment pattern memory 14, a start / stop switch 20, a tempo dial 21, a style switch 22, and a registration memory 17 are connected. The chord detection circuit 13 is a circuit for detecting the chord (chord: root note, type) specified at that time based on the note number detected by the key depression detection circuit 12. The detected code is output to the read control circuit 15. The accompaniment pattern memory 14 is an accompaniment pattern (rhythm, bass, chord)
It is a memory that stores a plurality of sets. This accompaniment pattern memo
14 corresponds to the accompaniment pattern storage means of the present invention.
It The read control circuit 15 accesses this memory and reads a predetermined accompaniment pattern. The accompaniment pattern to be read is the operation of the style switch 22 or the registration memory 17
It is determined based on the style number data input from. This style number data (style number)
This corresponds to the style designation data of this invention. The start / stop switch 20 is a switch for instructing start / stop of automatic accompaniment. The tempo dial 21 is an operator for setting the tempo of automatic accompaniment. The registration memory 17 stores tone color, volume, effect, tempo, and accompaniment style as registration data, and the read control circuit 15 receives the tempo data and style number. The registration memory 17 is
It corresponds to the clear resist storage means. Read control circuit 1
Reference numeral 5 processes the read accompaniment data to generate a musical sound forming circuit 10
And the current style number and style switching signal are input to the switching control circuit 16. The read control circuit 15 reads the pattern data of the designated style at the designated tempo. Also, after note-shifting based on the read out chord data, it is output to the tone forming circuit 10 as accompaniment data. Here, note shift means that the pattern data is a predetermined code (for example, C Maj
or)) and converts the predetermined code according to the root note / type of the read code data. If there is an instruction to switch the style while the automatic accompaniment is in progress, the style is switched when the measure currently being played ends. It also outputs the style number currently being played and the style switching signal to the switching control circuit.

The switching control circuit 16 includes a read control circuit 15
In addition to inputting the current style number and style switching signal, the setting data such as style, tone color, volume and effect are input from the registration memory 17. Switching control circuit 1
6 inputs these data to the tone forming circuit 10 at a predetermined timing. The switching control circuit 16 controls the registration data switching timing. If the style in the instructed resist is the same as the style selected at that time, the tone color or the like is immediately switched, and if it is different, the tone color or the like is switched in accordance with the style switching. This switching control circuit 16
It corresponds to the switching means of the invention.

The registration memory 17 has an area for storing a plurality of registration data consisting of a combination of various panel data such as tone color, volume, effect, tempo, and accompaniment style, to which the registration switch 23 is connected.
The registration data corresponding to the registration number input from the registration switch 23 is output to the read control circuit 15 and the switching control circuit 16. This registration switch 23
It corresponds to the resist selecting means of the invention.

The accompaniment pattern memory 14 stores a plurality of sets of accompaniment patterns (rhythm, bass, chord).
The read control circuit 15 accesses this memory and reads a predetermined accompaniment pattern. The read control circuit 15 determines an accompaniment pattern to be read based on the style switch and the resist switch.

The tone forming circuit 10 forms a performance tone based on the note number input from the keyboard 11 and an accompaniment tone based on the accompaniment data input from the read control circuit 15. The tone color, volume, effect, etc. of the musical tone to be formed are as follows.
It is set based on the data of the volume slider 26 and the resist data.

FIG. 2 is a detailed block diagram of the switching control circuit 16. This circuit includes a comparison circuit 30, a memory 31,
It is composed of an adder 32 and a transfer circuit 33. The comparison circuit 30 is a circuit that compares the current style number input from the read control circuit 15 with the style number read from the resist memory 17, and outputs a match signal if they match. The memory 31 is a memory for temporarily storing data such as tone color, volume, and effect read from the registration memory 17. The memory 31 is connected to the transfer circuit 33. The transfer circuit 33 includes an OR circuit 33a. The match signal of the comparison circuit 30 or the style switching signal from the read control circuit 15 is input to the OR circuit 33a. When any one of these signals is input, the tone color data is read from the memory 31 and output to the tone forming circuit 10 and a clear signal is generated. The clear signal is input to the memory 31. The clear signal erases the stored contents of the memory 31.

FIG. 3 is a detailed block diagram of the read control circuit 15. The read control circuit 15 includes a read circuit 40,
Memory 41, transfer circuit 42, tempo clock generation circuit 4
3, a counter 44 and a note shift circuit 45 are provided. The memory 41 is a memory for temporarily storing the tempo data, the style number read from the registration memory 17, or the style number designated by the style switch 22. A transfer circuit 42 is connected to the memory 41. When the bar line signal is input from the counter 44, the transfer circuit 42 accesses the memory 41 and reads the contents. The read tempo data is output to the tempo clock generation circuit 43, and the style number is read out by the read circuit 4.
Supplied to zero. When no data is stored in the memory 41 when the bar line signal is input and the memory 41 is accessed, the transfer circuit 42 does not transfer the data. After this, a clear signal is output. The contents of the memory 41 are erased by this clear signal. The tempo clock generation circuit 43 is a circuit for generating a tempo clock signal based on the tempo data given from the transfer circuit 42 or the tempo designated by the tempo dial 21. This tempo clock signal is supplied to the counter 44. The counter 44 counts the tempo clock signal, generates timing data for reading the accompaniment pattern memory, and outputs a bar line signal for each bar. The timing data is supplied to the read circuit 40, and the bar line signal is output to the transfer circuit 42. This counter is reset by operating the start / stop switch 20 (start signal).

The read circuit 40 is a circuit for reading pattern data from the accompaniment pattern memory 14 when the automatic accompaniment starts (when the start / stop switch 20 is operated). The pattern data to be read is determined by the style number, and the tempo for reading is determined by the timing data. The read pattern data is output to the note shift circuit 45. Further, the read circuit 40 constantly switches the style number being played to the control circuit 1
6, and when a new style number is input from the transfer circuit 42 (at the time of style switching), a style switching signal is generated and output to the switching control circuit 16. The note shift circuit 45 is a circuit that shifts the note data of the pattern data input from the read circuit 40 based on the code detected by the code detection circuit 13. The note-shifted accompaniment data is output to the tone forming circuit 10.

With the above configuration, the switching control circuit 16 can determine whether or not the styles match when the resist data is switched, and the read control is performed at the first bar line timing after the resist data or the style data is switched. It can be detected by the circuit 15.

The operation of the electronic musical instrument having this structure will be described below.

When the keyboard 11 is operated, the data is input to the key-depression detection circuit 11 → the tone forming circuit 10 and a tone signal having a corresponding pitch is formed.

When the start / stop switch 20 is turned on, the automatic accompaniment is started in the style specified at that time.

A code is detected by operating the keyboard 11 (code detection circuit 13), and the code (RO
Accompaniment data that has been note-shifted according to (OT, TYPE) is input to the tone forming circuit 10. This musical sound becomes the chord sound and the bass sound.

When the tempo dial 21 is operated,
The data is directly input to the tempo clock generation circuit 43, and the tempo is immediately changed.

When the tone color switch 24, the volume slider 26, the effect switch 26, etc. are operated, the data is directly input to the tone forming circuit 10 and the tone color, volume, effect, etc. are immediately switched.

When the style switch 22 is operated, the data is temporarily buffered in the memory 41 and output to the reading circuit 40 at the bar line timing immediately after that.

Therefore, the accompaniment style is switched from the bar next to the bar that has been operated.

When the registration switch 23 is operated, corresponding registration data is read from the registration memory 17 and input to the read control circuit 15 and the switching control circuit 16. The switching control circuit 16 compares the style number in the registration registration data with the style number currently being played (comparison circuit 30), and when they match, immediately sets the tone color, volume, effect, etc. to the registration data. To switch (output to the tone forming circuit 10).
If the style numbers are different, the read control circuit 15 outputs a style switching signal at the next bar line timing, and the registration data is output to the tone forming circuit 10 in synchronization with this signal. Even if the style numbers match, the tempo switches from the next bar.

As described above, when the accompaniment style is switched, the switching is executed at the bar division, and when the accompaniment style is not switched, the switching is immediately executed when instructed.

Although the above embodiment is realized by hardware, it may be realized by a microcomputer system using a CPU. Further, the tempo change based on the tempo data in the registration data is always performed at the timing of the bar line, but it may be changed at the same timing as the tone color. Further, the style switching is not limited to the bar line timing, but may be switched at each beat timing.

Further, the registration data is not limited to the above example. For example, modulation data may be included.

[0030]

As described above, according to the present invention ,
When the resist is selected and the accompaniment pattern is switched, the resist data is changed at a predetermined timing.
However, if the accompaniment pattern is not switched, immediately
Since only the control data is changed, it is possible to perform in line with the intention of the performer without any unnaturalness.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an electronic musical instrument that is an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a switching control circuit of the electronic musical instrument.

FIG. 3 is a diagram showing a configuration of a read control circuit of the electronic musical instrument.

[Explanation of symbols]

15-Read control circuit, 16-Switch control circuit, 17-Register memory 30-Comparison circuit, 33, 42-Transfer circuit

Claims (1)

(57) [Claims] 1. An accompaniment pattern storing a plurality of accompaniment patterns.
The accompaniment pattern storage means.
The selected accompaniment patterns are selectively read and automatically
An electronic musical instrument that responds to set control data.
Flip an electronic musical instrument whose operation is controlled, style designation data and control to specify the accompaniment pattern
A resist storage means for plural sets stored resist data consisting of data, and the resist selection means for selecting Les resist data, including the resist data selected by the resist selection means
Style specification data and then used for automatic accompaniment
Compare with the style specification data of the accompaniment pattern
However, if the two match, the resist selection means
Immediately transfer control data from the selected resist data
If the two are different, set them in the automatic accompaniment if they are different.
At the predetermined timing
An electronic musical instrument comprising: switching means for setting selected resist data .