JPS5968788A - 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] This invention provides a method for adding unsampled sounds of the number of boards to key performance sounds.
With regard to electronic musical instruments that can perform 1.1, the optimum unsampling effect corresponding to the glaze of the song can be obtained by making it possible to properly translate the tone combination of the unsampled prayer.

Conventionally, as an electronic musical instrument that can produce ensemble sounds,
Multiple iMs pressed on the accompaniment keyboard (for example, 02, “2,”
G2) and pitch name (0 for C2, E2, G2, JG
) Out of the many notes played all the time, the notes in the lower octave of the key pressed on the melody keyboard (for example, 06) (for C6, 05, Ei,, Gs) are selected. It is known that the upper note is selected and emitted along with the melody note (C6) (for example, the
(See Publication No. 895).

However, with electronic musical instruments like this, several harmonically related notes are sounded at the same time, but the same tone is set for all the notes.

A sufficient unsample effect could not be obtained.

Also, if you make it possible to converge different tones for each valley,
Compared to the curved building, the material color setting operation is more complicated, and the first/L? This is inconvenient for ministries, etc.

The purpose of this invention is to reduce the number of songs to 1 ri by simple translation and maintenance.
The object of the present invention is to provide a new electronic musical instrument that can produce the most optimal unsampling effect.

The electronic musical instrument according to the present invention is characterized by being provided with a timbre selection means for specifying a color combination of a plurality of additional tones, and a timbre control means for controlling the timbre of a plurality of additional tones according to the specified timbre combination. Hereinafter, the embodiments shown in the accompanying drawings will be described in detail.

FIG. 1 shows an electronic musical instrument kyi<
In this electronic musical instrument, the generation of melody sounds, 111 sounds, ensemble sounds, etc. is controlled with the help of a microcomputer.

A central processing unit (CPU) 10 operates according to programs stored in a program memory 12 consisting of a ROM (read-only memory).
= 1 glaze switch (SW), that is, UK tone switch UTSXLK tone switch LTS, function switch P″NS (for example, auto bass chord, auto rhythm, etc. switch), unsample mode switch A
NS, sample color selection switch ATS, etc. Hsw (
The status of each switch is detected by scanning via the switch) interface 16, and the detected switch information iRA
M (random access memory) 71) is stored in the register in the two-kink area 18, and when there is a change in the switch state, the data is transferred from the working area 18 to the bus 20-
2 via UK sound interface 22 and/or LK
Provides switch information to the sound interface Sae. In this case, when there is a change in the unsample tone selection switch ATSK, the central processing unit 10 retrieves the specific ansample tone information corresponding to the changed unsample tone selection switch from the unsample tone table consisting of iROM. It is supplied via bus 20 to unsample interface 4. Note that the ansample tone selection switch ATS is provided for each ansample name, such as, for example, plus ansample, lead ansample, Dixieland ensemble, country and western ansample, and polka band ensemble.

In the ensample tone table song, tone takes for four tones are stored for each ensample name, as illustrated in the following table.

Table (5) In this example, a total of four sounds, the lowest UK note and the first to third additional notes, are pronounced as answer sounds. Tones 1.2.3.4 correspond to the tones of [JKK bass, first additional note, second additional note, and third additional note, respectively. For example, if you select the plus unsample, the UKK bass, first additional note, and second additional note will all be sounded with the tone of a trumpet, and the third additional note will be sounded with the tone of a trompon. It means to do something.

The timbre data for four tones supplied to the unsampled interface are stored in the four storage channels of the timbre data memo IJ28b, respectively.

The central processing unit 10 scans the upper keyboard 32 for melody and the lower keyboard for accompaniment via the key interface, detects the states of the six keys, and stores the detected key information in registers in all working areas 18. When there is a change in the convolution or key state, a key signal is supplied from the working area 18 to the TJK sound interface 21 or the LK sound interface via the bus λ). In this case, if the sample mode switch ANS is turned on, the central processing unit 10
is based on the key-on information from the upper keyboard 32 and the key-on information from the lower keyboard 34 (or the key-on information from the memory for the lower keyboard), and generates all the unsampled key data for four notes and stores it in the register in the working area 18. and then supplied to the unsample interface 28 via the bus 2o. The unsampled key data for four notes supplied to the unsampled interface 4 are stored in the four storage channels of the key data memory 28a, respectively.

The UK sound interface 22 is located in the working area 18
The key data UKD and timbre data UO are supplied to the upper keyboard tone generator (UKTG) 36 based on the key information and switch information regarding the upper keyboard from . A UK sound signal is formed and supplied to a speaker 40 via an output amplifier 38.

L K sound interface U is working area 1
The key data LKD and tone data LO are all supplied to the lower keyboard tone generator (LKTG) 42 based on the key information and switch information regarding the lower keyboard from 8.
The tone generator 42 generates an LKK signal according to the key data LKD and the tone data LO, and outputs the output answer 38.
The signal is supplied to the speaker 4 ( ) via the .

Unsample interface ZHfi, key -r
- Ensemble key data for four channels (four notes) is extracted from the data memory 28a and supplied to the unsampled sound forming circuit 44a of the ensemble toe/generator (ANSTG) 44, and four channels of ensemble key data are extracted from the tone data 28b. The unsample tone data of the memory 28
The data is sequentially extracted in synchronization with the data output from a and is supplied to the timbre control data memo IJ 44b of the tone generator 44 in synchronization with each channel.

The timbre control data memo IJ 44 b stores data for determining the timbre corresponding to each timbre name shown in the table above as timbre control data, and is used to form a systematic tone of the sampled tone forming circuit 411. In the case of the evening type, filter selection data or frequency characteristic (cutoff frequency fc and selectivity Q) control data is stored, and the circuit 4
When the tone formation in circuit 4a is based on the arithmetic method, arithmetic constant data is stored, and when the tone formation in circuit 44a is based on the waveform memory method, address data is stored.

The unsampled sound forming circuit 44a forms unsampled sound signals for four tones based on the ensemble key data AKD and the tone control data from the memory 44b, and supplies the unsampled sound signals to the speaker 40 via the output amplifier 38. There is.

Therefore, from the speaker 40, a UK tone (usually a melody tone) corresponding to a key pressed on the upper keyboard 32 is produced, and a 7jLK tone (usually a chord) corresponding to a key depressed on the lower keyboard 34 is produced. and the sample mode switch AN
If S is pressed, four unsampled tones will be produced in the selected timbre combination.

FIG. 2 shows the arrangement of registers in the working area 18, and for the sake of simplicity, only those related to the unsample t/forming operation will be discussed here, and the others will be treated as individual registers, and explanation 8A will be omitted.

UKKIJI~UKKD51 is upper key F2 02~C
Key data register corresponding to each of the 61 keys of 7, Cheetah format r, I UKKD of each register
As typically shown for I, the most significant bit (MSB') of 1 byte (8 bits) or the key state KS (v'1 for key-on, 107' for key-off) (z key) , the remaining bits are unused.

In addition, LKKDl to LKKD (51 is an fc key data register corresponding to the 61 keys of 0, -, O, of the lower keyboard 3 and 1, respectively, and the data format of each register is as shown representatively for LKKDl. 1 byte (8
bit), the most significant bit (MSB) is the key state KS.
(Town if key on, &011 if key off) -(
, indicates the lowest pitch) (I, SB) or the pitch name related flag NF (9), the remaining bits are unused. Here, if the note name flag NFii is related to the note name pressed on the lower keyboard 34 (specifically, if it is the same note name)
111 jl, for example id', C2, E2
, if the C2 key is pressed f+, then jl, this and the note name 0.
f! : All keys with the same XG C2, "2, G2
;O,,"3,G11;04,"'4,G4
The pitch name related flag NF corresponding to . . . becomes 11.

By the way, MODI is an ensemble mode flux, and if the ensemble mode switch ANS is on, it is 1.
"01" in hexadecimal is 16 if the same switch is ANS or off.
In decimal, "00" is incremented by 1. Also,
ADD selects a specific ensemble name by turning on one of the sample tone selection switches ATS. , aH-0 to 0H-3 are tone color data registers for storing four tone color data related to a specified ensemble name.

f3F-Q is a buffer register that writes the key number of the scolding key when one key is pressed on the upper keyboard 32, and the mystery key number of the lowest note when multiple keys are pressed at the same time. be. BP-1 to BF-3 are buffer registers for storing all the key number data of the first to third additional tones, respectively.

UKAKO is the UK any key on flag indicating that any key was pressed on the upper keyboard 32, and LKAKO is the L flag indicating that any key was pressed on the lower keyboard 34.
K Any key on flag.

Note that the key numbers for both the upper keyboard 32 and the lower # keyboard 34 are 2, 3, 4, and 2, starting with the C2 key as 1.
...The total allocation is 61 for the C7 key. J Next, the entire processing flow of the main routine will be explained with reference to FIG.

1. When you turn on the electrolytic corrosion switch (not shown),
1 starts, the upper and lower keys UKXLK are scanned, and each glaze switch SW of the panel 14 is scanned.It is determined whether there is a change in the 75T condition, and if there is no change (No N), scanning and information acquisition are repeated. Will be returned.

Here, if the key state or switch state rarely changes (the judgment result is yes Y), then event f1
The process moves to branched processing according to the first class SW, UK, and LK.

For example, if there is a change in the switch state, L
Changes in the K tone switches UTS and LTS are detected, and if YES, the UKXLK tone switches are outputted to the respective tone generators 36.42 via the Atk interfaces 22.24.

However, if the sample mode switch ANS changes, the buffer registers BP-Q to BF'-
After writing all "00" in hexadecimal to 3 and clearing all the registers, all contents of BF'-Q to BF-3 are output to the unsample interface 28 and the valve Lte)-7 generator 44. From this point on, the unsample key data of the tone generator 44 will be cleared, and if the unsampled sound is not being produced, it will continue to be unpronounced, and if the ensemble sound is being produced, then the unsample key data will be cleared. If so, the pronunciation will be stopped.

Further, when the ensemble tone selection switch A'l'S changes, the order of tone data related to the specified ensemble name is stored in the Y register included in the central processing unit 11o from the address I/register ADD. After moving the address, refer to the Y register, add 4 volumes of tone color data KWA related to the specified unrampled name from the unsampled tone table, and store it in registers OH-0 to 0H-3. Then, the tone data of registers 0H-Q to 0H-3 is output to all interfaces, and the tone data memory 2
Instruct 8b.

Furthermore, in the case of a change in the function switch IINS, Tanyu program processing and data transfer are performed, but since this is not directly related to the present case, a complete explanation will be omitted. After the processing associated with any of the switch state changes described above, the above-described scanning and information acquisition processing is performed.

First, if there is a change in the upper keyboard UK, the key information (on or off data and key number data) of the key that changed will be output as fUK sound ifinterface 22vC. After this, by checking all the uppermost bits of registers UKKDI~61, it is determined whether the UK any key is on, and yes Yfr: is sent to the flag UK, AKO with 16 letters.
ol" + bit to put this in the set state, and if no N, put r o OJ in hexadecimal into the flag UKAKO and put it in the reset state. And the flag υKAK
When set to Oi set state, 61, slightly register UKK
Check the highest note of DI~61 (9 pips) -+11//, search for the lowest note with the smallest key number, and set this f@bass key number in register BP-Q. After this, register MODJD is 16-# and r 00
Check if it is not J (7) to determine whether it is unsample mode, and if it is not unsample mode, return to the above-mentioned scanning and information acquisition processing.

On the other hand, if there is a change in the lower keyboard TJK, the key information C on or off data and key number data (iLK sound interface) of the changed key are output separately. After this, it is determined whether LK any key is on by checking the topmost pin (f) of registers LKiD1 to 61, and if YES, the flag LKAKO is set to ``16 luck''.
01'' is written to set this, and if the result is No, r00Jkf is written in hexadecimal to the flag LKAKO, and this is set to reset. And the flag LKAKO'
(If it is in the 11-set state, then LKKDI ~
61, set the pitch name related flag NF to '14 for the most significant bit - "1" and the pitch name that is the same as this. After this, as in the case of the OK branch described above, it is determined whether it is unsample mode. , if it is not the unsample mode, the process returns to the above-mentioned scanning and information acquisition non-processing.

By the way, if it is determined that the unsample mode is in '1' in the unsample mode mentioned above (register MODE is not "00" in hexadecimal), the subroutine in Figure 4 is executed because of the unsample sound format. Then, if it is necessary to take the three-tone additional tone key data, it is completely formed and folded into the buffer registers Bk-1 to BF-3VC. Then, the key data of the first to fourth tones of the unsampled notes in the registers BF-0 to BF-3 are output to the unsampled interface No. 3 (17)11, and then the process returns to the above-mentioned scanning and information acquisition process.

Next, with reference to FIG. 4, the entire processing flow of the subroutine for seasonal sound formation will be explained.

Normally, 1 is added to buffer register D B'-l to BF-3.
"oo" v convolution in hexadecimal and clear the same register. Then, by checking whether the flag LKAKO is r 00 J in hexadecimal notation, it is determined whether all keys of LK are off, and if YES, it is impossible to form an additional tone, so the process ends.

Also, if all LK keys are not off, C:1, flag UKA
Check whether K O is r 00 J in hexadecimal and check whether all keys of UK are off or not. If yes, Y, it is impossible to form an additional sound, so process iJj '(i; end. In this way, all keys of LK are off or U
If additional tones cannot be formed because all K keys are off, the first to third additional tones are not generated since buffer registers BF-1 to BF-3 have been cleared.

Here, if neither LK nor U' is completely off, 4I and the key pick-up data of the lowest UK tone are folded into the A register included in the central processing unit 10 from the key number register BF-Q. Then, subtract 3 from the value of A register/IQ Mta. This is the first additional sound 'ji-U
This is to lower the lowest note of K by three keys.

Next, it is determined whether the contents of the A register after the subtraction are negative or outside the UK key range. As a result of this judgment, since it is impossible to form additional tones outside the UK key range, the first
~The third kanan is not generated.

Next, the contents of the A register' (after moving it to the HY register,
As shown in Figure 2, the LK key data register (LKKDI ~
Load the LK key data from any of the LKKD51) into the A register.

Next, the lowest viratra of the A register is checked to determine whether the note name related 7 lag NF is '11'. As a result, if no, then Y
Subtract all 1 from the register value and change the address by one key to the bass side. Then, it is checked whether the content of the Y register is negative or 0 to determine whether it is out of the key range.
The same operation is repeated until +=g4 is discovered. If the result of subtracting 1 from the value of the Y register and the determination as to whether the key is outside the key range is YES Y, the processing ends as an additional tone cannot be formed, as described above.

On the other hand, if the determination as to whether the note name related flag NF is 111l is YES Y, key number data tit is written from the Y register to the buffer register BF-1. The key number data written to BF-1 at this time becomes the first additional tone key data.

Next, after moving the entire contents of the Y register to the A register, 3 is subtracted from the value of the A register. This is to make the second additional note all three keys lower than the first additional note.

Thereafter, it is determined whether the key is out of range in the same way as described above, and the contents of the A register are transferred to the iY register.

Then, in the same manner as described above, import the LK key data into the A register, determine whether the note name related flag NF is N1, and if the result is no N, subtract 1 from 11- in the Y register, and further check whether the note name related flag NF is N1. If the determination is NO, the process returns to the LK key data import process, and the same operation f: is repeated until NF=J# is found.

On the other hand, if the note name related flag NF is 11, it is judged as YES.
If so, write the key number booter from the Y register to the buffer register BF-2. At this time, BF
-1, which is the key number data to be folded into 2 or 1, which becomes the additional note key data for the second note.Next, the contents of the Y register are transferred to the A register.

Then, subtract 3 from the value of the A register. This is to lower the third addition note by three keys below the second addition note. After this, it is determined whether it is outside the key range in the same way as described above, and if it is no N, it is A.
Move the contents of the register to the Y register. Then, in the same step as described above, import the LK key data into the A register,
Determine whether the note name related flag NF is 11#, and if the result is no-N, subtract all 1 from the value of the Y register, and further determine whether it is outside the key range, and if it is no-N, 9 is added to the LK key data import process.
, NF= repeats the same operation until ll is found.

On the other hand, if the note name related flag NF is 11, it is judged as YES.
Assuming that, the key number data is written from the Y register to the buffer register BP-3 in the same manner as described above. The key number data written to BP-3 at this time becomes the additional tone key data for the third tone.

As described above, buffer registers BP-Q to BF-3 are
The unsample key data written in is supplied to the unsample interface A through the unsample 1st to 4th sound output processing shown in FIG. 3, so the tone generator 44id generates the 1st to 4th unsample sound signals. do.

In this case, -For example, press 06 key in UK, 0- in LK.
Assuming that you press the current sound (any octave is fine) on E-G and select plus unsample with the unsample tone selection switch ATS, you will hear the 06th note as the lowest UK note and the 1st edition addition note. Both the 05 note and the E5 note as the second additional note are pronounced with a trumpet tone, and the third additional note Os 'fA- is pronounced with a trompon tone, resulting in a beautiful plus unsample. is highlighted. In this case, the switch ATS
Of course, it is possible to change to other lead ansamples as appropriate.

In addition, in the above embodiment, the melody sound, the first additional sound, and the first
Although the tonal interval between the additional sound and the second addition sound, and between the second addition sound and the third addition sound is 3 semitones, this may be set to 5 semitones, 7 semitones, etc.

Furthermore, the intervals between each sound may be made different from each other.

Further, the keyboard is not limited to a two-level keyboard, but may be one in which a single-level keyboard is divided into a melody key area and an accompaniment key area.

As described above, according to the present invention, it is possible to arbitrarily select a combination of timbres of the above-mentioned notes, so that a pleasant unsampled performance can be easily executed. Furthermore, since the timbre combination can be set for the UK performance sound and a plurality of additional sounds at once, a sufficiently beautiful unsampled effect can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a sub-instrument according to an embodiment of the present invention, FIG. 2 is a diagram showing the arrangement of registers in the working area, FIG. 3 is a flowchart of the main routine, and FIG. 2 is a flowchart of a subroutine for forming additional sounds. 10... Central processing unit f*, x... Unsample interface, 32... Upper keyboard, 34... Lower keyboard,
44...Ansample tone generator, ANS・
... Unsample mode switch, ATS... Unsample tone selection switch, 0R-Q, (!H-3...
Tone data register, BP-Q to BF-3...Buffer register for ensemble key data. Applicant Nihon Kuriki Manufacturing Co., Ltd. Agent Patent Attorney Satoshi Izawa

Claims (1)

[Claims] 1. A keyboard, data generating means for generating a plurality of additional sound data in relation to keys pressed on the keyboard, and musical tones for generating a plurality of additional sounds based on the additional sound data. timbre selection means for specifying a timbre combination of the plurality of additional tones, and a timbre control+ for controlling the timbre of the plurality of additional tones according to the specified timbre combination;
An electronic musical instrument characterized by having steps. 2. In the electronic musical instrument according to claim 1,
An electronic musical instrument, wherein the data generating means generates the plurality of sound data in association with melody keys and accompaniment keys pressed on the keyboard. 3. %ii'l - In the electronic musical instrument according to claim 1, the musical tone forming means h#forms a musical tone corresponding to a key pressed on the I keyboard, and the tone selection means forms a musical tone corresponding to the musical tone and The electronic device is characterized in that the timbre combination of the plurality of 41 addition sounds is added, and the 111th timbre control means controls the timbre of the musical tone and the plurality of addition notes according to the specified timbre combination. musical instrument.