JPS62161197A - Electronic musical apparatus - 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 the Invention] The present invention relates to an electronic musical instrument that digitally records an externally input acoustic signal and generates it at a specified frequency as a sound source signal.

[Background of the invention]

Conventionally, external sound signals have been converted into PCM (Pulse Cod
There are various ways to digitally record the sound using various modulation methods such as edModulation and use it as a sound source signal for a keyboard instrument, for example.

However, with conventional instruments of this type, the number of performance shapes is limited, and only the first waveform can be recorded in the recording memory, or even if multiple waveforms are recorded in two shapes, the keyboard split etc. is fixed. It was only done in A.

[Object and main points of the invention]

This invention was made in order to solve the above problem, and includes a recording memory for recording a plurality of world waveform signals as a plurality of digital signals, and a recording memory for recording the above-mentioned number in the recording memory. a setting means for setting conditions for six parameters in addition to selecting one of each of the different waveform signals; A readout means for selectively outputting a digital signal from the recording memory at a speed according to the input parameters and according to the conditions set by the setting means. We have proposed the first child Rakuten, which is patented as having the following.

That is, the present invention selects a musical scale, key touch, etc. as a parameter, inputs it, and inputs the thickness of the parameter.
Accordingly, the patent states that it is possible to select and specify which digital signal is to be read out.In the following example, both sound 1 and key touch are selected as parameters, and the two parameters are The selection of any one of the plurality of digital signals depends on the magnitude of the signal.

The f4 selection of parameters may be one of -1H or key touch, or may be another type of parameter.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained in detail in 1rfH.

FIG. 1 shows the circuit configuration of this embodiment. In the figure, 1 is an operation switch panel section, which is provided with various switches as well as input terminals and a display device. Then, from the outside, the external sound is converted into a voltage signal by a microphone, etc., and is inputted to the microphone in (MIOIN) terminal, and conversely, from this embodiment device, a scale tone signal (sound # signal) is sent to the outside.
is outputted via the OUTPUT terminal.

Additionally, as will be described later, a command signal (TRIG IN) that instructs the start of recording the signal input via the microphone in terminal from the outside is triggered in (TRIG IN).
Input via terminal. Furthermore, MIDI (, MIDI')
Keyboard signal or from a personal computer etc. through the IN terminal? l'1lIJ wholesale signals and data are not supplied. Furthermore, MID I means “I child music 4”.
Musical Tnstrument I) i
It is an abbreviation for digital interface.

Details of the operation switch panel shown in FIG. 1 are shown in FIG. 2. That is, in FIG. 2, reference numeral 2 denotes a power on/off switch equipped with the present embodiment. It is what makes it operational.

And the record (RgooRD) section (ha,
In addition to the above-mentioned microphone in terminal 3 and trigger in terminal 4, a signal level volume 4 that adjusts the level of the id signal input from the microphone in terminal 3, and an external sound signal supplied from the microphone in terminal 3 are automatically recorded. The trigger that determines the starting level (trigger level) has a one-level volume 6, and the signal level is displayed on a level meter 7. This level meter 7 is, for example, LE
The signal level is displayed by displaying a bar graph at D.

Furthermore, the record section includes a record (RFJO) switch 8 for switching to record mode, a clear (OLR) switch 9 for clearing already recorded signals, and a trigger (for performers to manually input trigger signals). 'I'RIG) switch 10, and a cut (OUT) switch 11 for erasing unnecessary parts of the recorded signal, and these switches 8 to 11 each have a lighting display indicating their operation status L]ED8 -1 to 11-1 are internally installed.

Console of operation switch panel section 1 (OON80Lg
) section has a tone set switch 12 that is operated to distinguish between each tone when a plurality of tones are recorded in one recording memory, as will be described later, and the tone number has eight U-shaped segments. Tone LgD13
The height and length of the area are displayed as a bar graph on the tone map LED 14. For example, the tone map LBD 14 is divided into a number of blocks corresponding to the number of recording memory blocks, which will be described later. For example, the tone number of the tone set switch 12 increases each time it is operated.

This console section also includes a fine (FINg) switch 15.15 and a course (00 person 88B) volume 16, which are used for inputting various parameters.
By its operation, the display state q9 of the value (VALUfD) LED 17 having a four-digit 8U-shaped segment or the tone map LBD 14 described above changes.

Note that the fine switch 15.15 handles minute changes by 1
The switch consists of a switch (>) that indicates the direction in which the parameter increases and a switch (<) that indicates the direction that the parameter decreases.
If you keep pressing 15, the value will change continuously. Coarse volume 16 is used to control the EDIT wave on the operation switch panel, which is used when making large changes to parameters.
The MASTgRTUNE section mainly has a plurality of switches for inputting signals that specify how to use or modify the input waveform signal, and MASTgRTUNE switch 1.
8 changes the pitch (frequency) of the entire sound,
By operating this switch 18, the internally installed LED 18-
After 1 is lit, the fine switch 15.15,
The course volume 16 is used to determine the actual lap and t save, and the display at that time is the value L! D.D.I.
7, and for example, tuning is performed by digitally displaying a value corresponding to the frequency.

Further, the tone pitch (TONg PITOH) switch 19 becomes effective when a plurality of tones (tones) are recorded, and determines the pitch for each tone. The operation method is the same as that of the master tune switch 18, and is performed using the fine switch 15, 15, and coarse volume 16 when the LFliD 19-1 is turned on.

General (GEN) of the edit wave section
') Start switch 20. The end switch 21 specifies the start address and end address of the waveform generated as a musical tone, and the end switch 21 is used to specify the start address and end address of the waveform generated as a musical tone.
When tilJ is lit, fine switch 1 is turned on.
5.15 and course volume 16, and the display is performed using tone map LED 14 and value LIDD 17.
It will be held at

Further, the repeat (RgP) start switch 22 and end switch 23 are used to designate the start address and end address of a repeated portion for repeatedly reading out a portion of the stored waveform. Fine switch 15.1 when in the lighting state tM, respectively.
5. The coarse volume 16 is used, and the display is performed using the tone map LED 14 and the value L gDt 7.

Edit wave section vibrato speed,
Depth (DEPT) I) and delay switches 24.
25.26 determines the speed change, depth, and delay time or presence/absence of vibrato. When each switch is operated four times, LgD24-1.25-1.26-1 lights up and its Each parameter is input by operating the fine switch 15, 15 and coarse volume 16 for the condition, and at this time, the condition 9 group is numerically displayed in the value LIIED 17.

In addition, in the Kinomi # example, it is possible to give a pre-recorded waveform an envelope different from its own envelope, and the envelope attack (A) time, decay (nl time), sustain (8) level, When each switch 27, 28, 29, 3o to set the release fal time input mode is not operated, the internal LgD 27-1.28-1.29-1.
3o-1 lights up, and by using the fine switch 15.15 and the coarse volume 16 once, each parameter can be input digitally. In addition, at that time, 1il of each parameter is displayed on the value LEDI 7.

In addition, in this embodiment, the relationship between the musical keyboard and the output musical tone can be set as variable; Place・′! t(rfl<1
), and with(~VI DTH)
The switch 32 determines the gr area on the keyboard of the g5, and the touch (T OU OH) switch 33! Ma,
Contact - Determined according to the key touch (speed FW) for 1. When each switch 31, 32, 33 is operated, LgD31-1.32-1.33-1 is lit and this lit shape? Fine switch 15.15
, using course volume 16.

That is, 7. of the center switch 31. ! For poetry, fine switch 15, 15, course volume 16 4.1
From work 1, the corresponding name is Value LgI) 17
When operating the width switch 32, the upper and lower limits of the scale to which the corresponding note is applied are 4-digit numbers such as H**** or L**** in value LEI)17. This is done from the display.

Manual switching of S1 upper limit and lower limit is performed by series 1 of the with switch 32. This is done through selling operations.

Also, when operating the touch switch 33, the fine switch 15.15 and course volume 16 are used to determine the I: limit and lower limit of the key touch that hits the key 11 to produce the cough sound. As **, the above value LgD17i is subtracted and the manpower level is displayed.

The input of the upper and lower limits of t1 is turned off by continuous operation of the touch switch 33.

There is a play switch 34 in the midi section of the operation switch panel section 1, and by this operation, the internal ID
34-1 lights up, and the performance is performed according to the keyboard signal, cod data, etc. input from the outside via the midi-in terminal 35 mentioned above.

In addition, the check switch 36 automatically sounds the sound displayed on the tone LgD13, and the sound displayed on the tone LgD13 can be adjusted to 1.1.
-1 is displayed.

From the output terminal 37, the play switch 34 is connected.
or when the check switch 36 is operated, the output +Ii#'# signal is sent to an external amplifier and speaker.

The operation switch panel section 1 is connected to a single CPU 38 via a pass line ABUS, as shown in FIG. This OPU 38 is composed of a microprocessor and executes various processing controls to be described later.

This Ol) U 38 is used for processing control of each cell.
Work memory 39) having a memory area of 11): connected via the bus line ABUS. Also, 0P03
8 is the 4 channel (OHO
~0H3) waveform read/write, (ill jn section 4
Connected to 0-0 to 40-3. These 4,000-channel waveform read/write controllers 40-0 to 40-3 may have separate hardware (or may operate on 4 channels using time-sequence processing). Good too.

The four-channel waveform read/write controllers 40-0 to 40-3 supply an address signal (ADDRESS') to the recording memory 41 (on a time-minute basis) via the pass line DBUS to record the data. Data (DATA) is transferred to and from the memory 41 (!) via the pass line EBUS. Also, a read/write signal (R/W) is output to the recording memory 41 in a time-sharing manner.

Therefore, waveform read/write system? I11] Part 40-0~
40-3 can access waveform information in the same area or a tin area by sending different address signals to the IS memory 41, or write waveform information in one channel while writing waveform information in another area. It is also possible to read out waveform information using the following channels.

The recording memory 41 has a memory of, for example, 1.5 megabits (M1 bit), and can be used by being divided into 32 blocks, and is capable of digitally recording 1Q of waveform signals, for example, recording 4 POM sounds. It is something that can be done.

Then, the external signal input through the microphone in terminal 3 of the operation switch panel section 1 is sampled and applied to the A/L) converter 42, which converts it into a digital signal and converts it into the digital signal described above. Waveform write/write control section 40-
0 to 4O-3 (Channel O for the first festival as described later)
HO, 0) Waveform read/write control unit 4 corresponding to TI
0-0.4O-1), and is recorded in area 1 of the recording memory 41 at an appropriate address.

In addition, waveform read/write system J@ section 40-O ~ 40-3
The digital signal read out from the sound instep memory 41 and output is input to the D/At' converter 43 in a time-sharing manner,
Sample hold (SgH) after conversion to analog signal
) is applied to circuits 44-O to 44-3. That is, the sample and hold circuits 44-0 to 44-3 sample and hold the waveform signals output from the waveform read/write control units 40-O to 40-3 in a time-divisional manner and for each channel.

Then, the outputs of the sample and hold circuits 444-0 to 44-3 are subjected to amplitude envelope control by the VOAs 45-0 to 45-3, and mixed (MIX I N
G) sent to circuit 46; That is, vCA45-O
45-3 performs envelope 1 control by converting the envelope system &I signal given from the CPU 38 into a voltage signal by the D/A converter 47 and supplying it. Note that this D/A converter 47 is 411ffi, l) husband & (
7) Correspondingly arranged to VOAs 45-0 to 45-3.

The signal mixed by the mixing circuit 46 is
It is outputted through the output terminal 37 of the 4th production suite thousand panel section 1.

Next, the operation of this embodiment will be explained. First, the operation in record mode will be explained.

<Record mode> Enable external sound signals to be input from microphone in terminal 3,
Operate the record switch 8 to enter the record preparation state. That is, in the record preparation state, as shown in FIG.
The external sound signal is repeatedly input and recorded in the area up to 1), and the external sound signal is recorded until the trigger signal is actually applied. The area from ■ to ■ will be referred to as the delay trigger area. When entering this record mode, LgD8-1 lights up.

This situation! When the trigger is applied, recording actually begins. There are two ways to apply - to 3. One is called Auto Trigger, and when the external sound signal exceeds the base level set by trigger level volume 6, trigger No. 48 is activated. occurs. The second method is to compose a song using an external trigger signal input through the trigger in terminal 4, and the third method is to compose a song by operating the trigger switch 1o by the user himself. The second method is called an external trigger (External trigger).
The third method is called manual trigger.
r). In addition, the first trigger type and the second trigger type are, for example, trigger level volume 6.
If you set up a range where the auto trigger is not activated, and the trigger level volume 6 is located at such a position, only the 21st and 3rd trigger type will be used. ing.

When a trigger signal is generated by one of the three methods described above, the LED 10-1 lights up.

The operation of the 0PU38 in this record mode will now be explained with reference to FIG.

First, when the record switch 8 is operated, step S
t, 0P038 sets the address of ■ shown in Figure 3 as the recording start address for the waveform read/write control section 44-0 of channel (1) (0, and sets the address of ■ as the loop start address. address, and set the loop end address (this address is set to I+14 with fl loop 1 on. In other words, the waveform read/write allocation section 44-O (waveform read/write of other channels) The control units 44-1 to 44-3 are also capable of repeatedly reading/writing a specific address area of the recording memory 41, and repeatedly specify addresses from the loop start address to the loop end address in the loop-on state. become.

Then, proceed to Shikarutaka step S2, and select the channel OH.
A command is given to the waveform read/write control unit 44-0 of O to start recording via the pass line OB[IS. Therefore, after the external sound signal input via the microphone in terminal 3 is sampled, the A/D conversion 442 converts the external sound signal into a digital signal and writes it into the a-sound memory 41. , Figure 5 IAl shows the fourth situation, in which external sound signals are repeatedly recorded in the delay trigger area (from address ■ to , the signals stored before that are erased, and only the latest input signal is recorded.For example, an external sound signal of 100 m5ec is recorded in this delay trigger area. By recording the outer +f scratch signal in advance in this delay trigger area, the start of the subsequent recording of =AJ becomes natural.

Proceed to step Ss and set address ■ shown in FIG. 3 as the recording start address and address ■ as the recording end address for the waveform read/write control unit 40-1 of 1,000 channels 0) (1). .Of course, the recording start address and recording end address can be set variably for each child.

Then, the process proceeds to step S4, where it is judged whether or not trigger No. 45 has been input by any of the above-mentioned automatic trigger, external trigger, or manual trigger II -, and if a NO judgment is made, , this step S4 is repeatedly executed, and if the bird receives one signal and a YES judgment is made, the process proceeds to the next step Ss+.

In this step S5, the waveform read/write controller 4O-(H) of channel OHO stops recording. For example, the address increment stops at the position indicated by OHO in FIG. 5(A).

Then, a command to start recording is sent to the waveform read/write control unit 40-1 of channel OHI via the path line 0BUS. And in this case!
Edge piece 1 starts from address ■ in Figure 3. Then, the process advances to step S6, and the waveform read/write fjlJ @J
If the address specification of section 40-1 is now, the @ position in Figure 3]
Judge whether or not it has been completed, and if NO, go to step Sg 9.
After making this determination, the process returns to the next step S7.

NO, in this step S7, the data in the delay trigger area is transferred to a predetermined area of the work memory 39, as shown in FIG.
Since the data in the area ~F was recorded before the data in the area A~0, data D-F is transmitted first, then f&+data A~0 is transferred, and the array is After that, the 51st ffl (in the form shown in 111, the first block of the recording memory 41, N
Start at Ochi area ■～■.

As a result, in this recording memory 41, external sound signals are digitally recorded in areas ① to @.

In order to cut out unnecessary parts of the data 1 that has been improved in this way, create a cut switch 111'ψ, and set the fine switch 1 so that LgDl 1-1 is lit.
5 or course volume 16. In addition,
The tone map LED I4 displays the memory position I4 and length of the sound, and each time a cutting operation is performed, the display shape yl is nitrified to display the two-tone area.

The above was a case of inputting a single tone signal to the recording memory 41, but by changing the tone number using the tone set switch 12, it is possible to input the source ship by Hifunazaki Roku.

Then, the 70PU 38 instructs the waveform read/write sub-input parts 40-0 and 40-1 to appropriately specify the 9 start address and the 9 end address.
Let it be recorded. In this way, tone 1 to tone 5?
I memorized the waveform and i# information. Figure 46 shows Inu Tosen. Therefore, each time the tone set switch 12 is turned on, the tone number is changed, and the number 1 is directly displayed on the tone LED 13.
Inouen no Ki 1: Display area a.

And clear switch 9;,! If you make it, tone L
The waveform information of the number displayed on gD13 and the numbers after that number are erased. Thus, for example, tone r,
When "3" is displayed on "Gota", press this clear switch 9, Tone 3 to Tone 5 will be deleted from the memory 41 for **, and a new external f signal will be played. You will be able to do this.

The signal input in this way is transferred from 0P038 to the waveform lead/
The write control unit 40-O is instructed to perform 1li primary access, is read out, converted into an analog signal via the D/A converter 43, and amplified appropriately in the '10A45-0, and then outputted. The signal is output from the top terminal 37, and @ sound is generated. Therefore, the shape of the bowl can be checked.

<Edit Wave Mode> Next, a description will be given of the operation of variously changing the waveform signal inputted in this manner to obtain a waveform signal for an actual output musical tone signal.

FIG. 7 shows that in a specific address area of the work memory 39,
This shows a state in which data related to the external sound signal recorded in the recording memory 41 is stored.

That is, each data is stored in the tone number 1111. For example, in the tone 1 area, the following data are stored in the work memory 39 under the control of the 0PU3B.

First, start block number < 5TARTBLOO
K#:) specifies the first block that is remembered in the waveform of tone 1, and the end block number (]1
3ND BLOOK #) specifies the last block in which the waveform of tone l is stored. Based on these two pieces of information, the tone map LET) 14 is displayed.

The next data, that is, the general start block number (GEN 5TART BLOOK #), specifies the block address at which to start actual sound generation.
Next general start address (GEN S'l'
ART ADR8) specifies the lower address within the block. This ++It is set using the fine switch 15.15 and the course volume 16 after operating the general start switch 20. FIG. 8 shows such a situation, where the general start position can be taken anywhere in the storage area of tone N.

In addition, the next general end block number (GgN
113Nr) BLOOK #) and the general end address (GEN [(ND ADR8)) are input using the fine switch 15.15 and the coarse volume 16 after operating the general end switch 21. This shows that the position of the general end inputted can be taken freely.

In addition, the repeat start block number (RgP 5TART'BLOOK) deployed in the next area
#-), repeat start address (RgP S'r
ART ADR8) is the repeat start switch 2
After the operation in step 2, the fine switch 15.15 and coarse volume 16 are used to set the start position for repeat access to a specific area of stored waveform information. On the same machine, repeat end block +7 bar (REP END BLOCK
#), REP gND 7 dress (REP gND
ADR8) After operating the repeat end switch 23, fine switch 15.15 and coarse volume 1
6, and the 9th state specifies the end position of a specific area of waveform information.
As shown in the figure, during actual performance, the waveform read/write control units 40-O to 40-3 access the waveform information from the general start (GgN 5TART) position to the repeat start position. After that, the waveform information is accessed repeatedly from the repeat start position t to the repeat end position a predetermined number of times, and then the waveform information is accessed from the repeat end position to the general end position. This may also be the time when the da key is turned off. Regarding the operation when setting the general, repeat start address, and end address,
This will be described further below.

, the tone pitch (TONg PITCH) stored in the work memory 39 in Fig. g7 is set by operating the tone pitch switch 19, fine switch 15.15, and course volume 16, and this setting information and the master switch Reflecting the setting information based on the 1,18th illustration, the frequency information of the 12-tone scale of the Shio octave of pitches (PITOH) O+ to C of the salt 7 chart is determined.

Work memory 39 keyboard center (KgY B
OARD OgNTluR) is a fine switch 15.15 after making 1i of keyboard center switch 31.
, is set by adjusting the course volume 16, and determines which scale the recorded external sound signal is to be associated with. The correspondence relationship is displayed numerically on the value LED 17. According to the setting of this keyboard center, the information of pitches C+ to C changes, and a transposing function can be provided.

That is, for example, if the frequency of the external sound signal is fl, the scale specified by the keyboard center t will have the frequency fl, and by changing the keyboard center, it is possible to variably set which scale has the frequency f1. Aru.

Then, according to this keyboard center setting,
By changing the contents of the pitches C to () in the diagram to t↓, or by reading out this news in real time, by changing the correspondence between the umbrella's ¥! It's been a long time since I've been in the middle of a long time

Next keyboard with row (KBYBnARr) WID
THL) and Keyboard with High (KEYBOARD)
WIDTI (H) is keyboard width switch 32
It is set using the fine switch 15.15 and coarse volume 16, and the previous I
11! The application range is set corresponding to the f1 fort sound. 3. The keyboard center, keyboard with low, and high may be controlled by operating keys on a keyboard connected via the midi-in terminal 35.

Next+7) t--Tarachiro-(KEY TOLJOHL
) and key touch high CK EY T OU OHI (
)7 is set by using fine switch 15.15# and course volume 16 after rectifying the key touch switch 33, and the previous usage range is set according to the key touch (association). 4Ukoto can, value LP3
D17 should display the values indicating the upper limit 1 and lower limit.

Also, envelope attack, decay, sustain,
After sweeping the release switches 27 to 30, fine switch 15.15 and coarse volume 16. Envelope attack (A) of work memory 39 using L:
TT), Decay (DEO), Sustain (SO8),
The release ([IBL) information is set.

In addition, vibrato information is input to the memory area of 5 tones 1, but its explanation will be omitted.

Next, the operation when detecting the above-mentioned general start address, end address, repeat start address, or end address will be explained in detail. That is, as shown in FIG. 10, the waveform information changes in level (-) over time.
&, and when you specify the start or end of a waveform at any point, a noise called a click sound is output. Therefore, it detects the so-called zero cross point that goes beyond the zero level and converts that address to the general start address.
The end address or repeat start address must be the same as the end address.

Figure 111 shows the processing, and 0P038 reads out the waveform/R signal from the recording memory 41 according to the fine switch 15, ]5 or coarse volume 16, and detects the zero cross point.

FIG. 11 shows the flow when moving to Ill where the address increases. At step T+, the readiness flag is turned off. At step T2, the pointer in CPO 38 (this is used for recording) is turned off. Specify the address of the memory 41 and read/write the waveform: !i'l +i+JI section 40-
Changes in synchronization with the 0 address counter. ) is incremented.

Then, in step T31, it is judged whether the data at the address indicated by the pointer is negative.
When this determination is made, the process proceeds to step T4 and the aqueous flag is turned on. This polarity flag turns on when the amplitude value of the waveform takes a negative value, and turns off when it takes a positive value.

Following step T4, the process proceeds to step T2 and the same operation is repeated. And 4 with pointer? If the determined data is positive, the determination in step T3 is NO and the process proceeds to step T5, where it is judged whether the polarity flag is an on-state decoy or not.

Then, when the polarity flag is off /I:, that is, the positive width f is sold l and the index is thicker.
1, the result is No, and the process moves to step T6, where the polarity flag is set to OFF.

Also, the reason why STEP'r8 makes 4'1jlf with Yes is because the value of the previous pointer was negative, and the current pointer's value is negative! This is the case when the width 1 straight is positive, and the zero cross point has just been passed.

In that case, the process of step T7 is executed following step Ts. In step T7, it is determined whether the current amplitude value data of the pointer is less than or equal to a predetermined value Δ. That is, 8
As shown in Figure 10, in the vicinity of the zero-crossing point of the waveform, a Yes decision is made at step Ts, but if the address point is actually not small, that is, it is not smaller than the predetermined value △, a click sound will be produced. Therefore, there is no meaning in processing the zero crossing point. Therefore, if a negative decision is made in step T7, step TI will continue until the next zero-crossing point.
The process of %-T6 is repeatedly executed, and when a Yes decision is made in step T7, what happens! 0P038 writes the value of the pointer at that time into the work memory 39 as the general start address, end address, repeat start address, and end address.

Figure 11 shows 0P when the address changes in the positive direction.
038 is shown, but conversely, when the address changes in the negative direction, step T corresponding to step Tl is shown.
In lI, the polarity flag is turned on, and in step T3', which corresponds to step T3, it is judged whether the data of the pointer is positive or not, and in step T, which corresponds to step T4.
At 41, the polarity flag is turned off and step If s
The polarity flag is turned off in step TS' corresponding to step T6, the polarity flag is turned on in step TsI corresponding to step T6, and the other steps Tt and Tt
The processing may be performed in the same way.

Play Mode> Next, the operation in the play mode in which the play switch 34 is operated and rock performance is performed according to the signal input from the midi-in terminal 35 will be described below.

Note that the recording memory 41 stores, for example, the waveform information of tones 1 to 4, and is also stored in the work memory 39.
Keyboard Center, Keyboard With Low, High,
Information as shown in Figure 12 has been input as key touch low and high no data.

Figure 12 schematically shows the data for each of Tone 1 to Tone 4. The keyboard center of Tone 1 is Os (the subscript indicates the octave number, the same applies hereafter), and the keyboard width is is 03 to B3, and the key touch is 0 to 127.

Same (, on the other hand, the keyboard center of Tone 2 is C4,
Keyboard width is 03°~C6, key touch is 20
~80, the keyboard center of tone 3 is As, the keyboard width is Os S-B s, the key touch is 81~127, the keyboard center of tone 4 is A4, and the keyboard width is r-~B4. , the key touch is θ~120.

Then, according to step U1 of the IC13 diagram, cPU38
inputs "1" into the flag register (hereinafter referred to as the tone number register) that specifies the tone number (ToNg #:), proceeds to the next lζ step, and inputs the signal via the midi-in terminal 35. The distortion force 1 judges whether the input tone +i* (NOT E) code is within the range specified by With Low and With High of the tone 1 area of the work memory 39.

If a Yes determination is made in step U2, the process proceeds to step U3. In step U3, an input key touch (K
I3Y TOUOH) 1 judge whether or not the blue report is within the range of key touch low and key touch 1,000 high in the tone 1 area of the work memory 39.

If a Yes decision is made in step U3, the process proceeds to step U4, where the tone specified in the tone number register (10-4-4 tone 1) is played according to the scale code and key touch information. 9r starts.

RIJ, OP U 38 is general start position 1d1 end position stomach-O from the relevant area of work memo 139.
-40-3 to the control section of any unused channel. Further, the pitch information corresponding to the f+@ code is retrieved from the work memory 39, converted as appropriate according to the octave information, and provided to the waveform read/write control sections 40-0 to 40-3 of the designated channel.

As a result, the waveform read/write control sections 40-1 to 40-
3 reads the waveform information of the designated area from the recording memory 41 at speed 1 in accordance with the pitch information and supplies it to the D/A converter 43.

Then, the analog waveform signal output from the D/A converter 443 is sent to sample and hold circuits 44-0 to 44-3 I
C give x-la 11. , scold? 5V (1A45-0~45
-3ic give; h, le, this V (1A45-o ~45
According to the envelope attack, decay, sustain, and release data read from 0PU38, work memo I) 39, and input key touch information; A
f + A 2147's Izn, from which the analog pressure change signal was applied, the f was given, so the cono VOA
45-0 to 45-3, not only is the envelope given in advance s = given, but also the f amount is controlled in accordance with the key touch.

Then, this output signal is mixed by a mixing circuit 46 (trowel) and outputted to the outside via an output terminal 37.

Now, in step U4 of FIG. 13, the 1,000-jannel to be sounded is specified, the musical scale, and the key touch are specified in this way, and step USfCJ is executed.

Note 1. Even when the answer is NO in steps U2 and U3, the process proceeds to step U5.

Step U5 increments the contents of the tone number register, and after this process step U61
Then, it is judged whether or not the processing in steps U2 to U5 has been completed for all the tones, the current pigeonhole tones 1 to 4. If the judgment is No, the process proceeds to step U2. Also, if you make a Yes decision in step U6, the processing for the information input from the midi-in terminal 35 will be completed, and multiple keys will be pressed simultaneously on the keyboard. i.

Every time Sakuyu n, 0PU38 performs the flow shown in Figure 1 for this purpose, and the daytime channel CHO~
OH3 waveform lead/ride 1 interval 1 wholesale part 4〇-〇～40
-3 and generate it by applying the output musical tone "dl".

Also, when a mute command is given from the midi-in terminal 35,
Execute the same process and stop the sound.

Now, in the example shown in FIG. 112, the information power S input from the midi-in terminal 35, for example.

If the key touch is 40 at 03, <a of tone 1
Everyone is sounded at a level of 40 key touches.

Similarly, one message input from the midi-in terminal 35 is
If the key touch is 40 on A3, tone 1 to tone 2
The two sounds are produced at a key touch level of 40.

In addition, the information power (O
s, if the key touch is 100, tone 3 will be sounded, and if the scale is the same but the key touch is 60, tone 2 will be sounded. In this way, in this embodiment, the range of the keyboard and the key touch are the same. Multiple waveform signals preset to 9 depending on the range can be used extensively, and the function of a conventional keyboard split can be improved from the original, and the amorous mode can be switched with the touch of a key. It can also be done easily.

〔Effect of the invention〕

As described above, according to the present invention, the determination is made by accessing which of the waveform 1H signals recorded in the recording memory. It has the advantage of being able to play.

[Brief explanation of drawings]

The drawings show one example of the actual track of the present invention;
I+ configuration diagram, Figure 2 is a diagram showing the imitation switch panel of Figure 1; Figure π3 is a diagram showing the address table for the contents of the performance memory, Figure 4 is a diagram explaining the operation and switching of the record mode.
- A diagram showing a chart, Figure 5 shows the array of data notated in the Delate II gar range (a diagram showing the state when playing, Figure 6 shows the qa tone in the playing memory. Figure 7 is a diagram showing the main contents of the work memory in Figure 1, Figure 8 is a diagram to explain changes in the general start and end positions, Figure 9 is a diagram for explaining the repeat start, changing of the end (and the order of specifying the address during play), Figure 410 is a diagram for explaining the zero-crossing point of the waveform, and tIC11 is a diagram for detecting the zero-crossing point. Figure 12 is a diagram showing the flowchart of the process.
FIG. 13 is a diagram for explaining the mantissa tone keyboard and the iJ range of key touches, and FIG. 13 is a flowchart diagram for explaining the operation in the play mode. 1...Kaisaku switch panel 5.3...4 microphone ins, 4...trigger in terminal, 8...record switch, 9...clear switch, 10...trigger switch, 11. ...Cut switch, 12...Tone set switch, 13...Tone LEAD, 14.
...Tone map LED, 15.15...Fine switch, 16...Coarse volume, 17...Value L [8r]. 20... General start switch, 21... General end switch, 22... Repeat start switch, 23... Repeat end switch, 31.
...Keyboard center switch, 32...Keyboard with switch, 33...Keyboard touch switch, 34...Play switch, 35...Midain 4 children, 36...Check switch, 37...Output Terminal, 38・OPU, 39...Work memory,
40-0 to 40-3... Waveform read/write control section,
41... Recording memory, 42... A/D converter, 4
3...D/A'&changer, 45-0 to 45-3 ・VO
A, l Fig. 11rl> Fig. 5 Fig. 6 Fig. 71'4 Fig. 8 Fig. 9 1 Fig. 11 Fig. 13

Claims (3)

[Claims] (1) A recording memory that records a plurality of different waveform signals input from the outside as a plurality of digital signals, and parameter conditions for selecting each of the plurality of digital signals recorded in this recording memory. With the setting means to be set and the speed corresponding to the scale specified according to the performance of the song,
The electronic musical instrument is further provided with a reading means for selectively reading digital signals from the recording memory based on conditions set by the setting means in accordance with input parameter values. (2) The setting means selects a scale code specifying a scale as the parameter, and the reading means selects a scale code that specifies a scale as the parameter, and the reading means selects a scale code that specifies a scale as the parameter, and the reading means selects a scale code that specifies a scale as the parameter, and the reading means selects a scale code that specifies a scale as the parameter, and the reading means selects a scale code that specifies a scale as the parameter. 2. The electronic musical instrument according to claim 1, wherein a digital signal selected by a code is read from the recording memory. (3) The setting means selects a key touch as the parameter, and the reading means selects a key touch as the parameter, and the reading means selects the key touch at a speed determined by a scale specified in accordance with the performance of the musical piece. 2. The electronic musical instrument according to claim 1, wherein a digital signal is read out from said recording memory.