JP3048526B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument capable of generating a melody sound, a percussion instrument sound and a sound effect.

[0002]

2. Description of the Related Art As musical performance operators, there are known electronic musical instruments having a pad in addition to a keyboard, and generating percussion sounds in accordance with the operation of the pad. Also, the type of percussion instrument sound (for example, hi-hat, single, bass drum,
For example, Japanese Patent Application No. Sho 62-3 discloses an electronic musical instrument in which a triangle or the like can be programmed for each pad.
No. 32271. Some electronic musical instruments of this type have a hold mode function.
In such an electronic musical instrument, when a pad or key is operated, a tone is generated based on tone information corresponding to the pad or key, and the tone information is retained even after the pad or key is turned off. , Can sustain pronunciation.

[0003]

In a conventional electronic musical instrument with a hold mode function, when a generated tone is an attenuated tone, the tone is attenuated according to a predetermined envelope waveform. There was a problem that pronunciation was not maintained even if it was held.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide an electronic musical instrument that can maintain sound generation after operation of a performance operation element even when a musical sound to be generated is an attenuated sound. And In addition, the present invention
A further purpose is that there are a wide variety of
To provide electronic musical instruments that can produce
And there.

[0005]

According to a first aspect of the present invention, there are provided a plurality of performance operators, and an allocating means for assigning an arbitrary one of a plurality of timbres to each of the plurality of performance operators. A musical tone generating means having a plurality of tone generation channels for generating musical tone signals of the tone assigned to each of the performance operators in response to the operation of the plurality of performance operators; and a musical tone of the tone assigned to the performance operator. Control means for controlling the musical tone generating means so as to repeatedly generate a plurality of signals at a predetermined time interval determined for each timbre for one operation of the performance operation element; A method of managing the time interval for each musical tone that is present , enabling the generation of the musical tone signal to be repeated simultaneously at a plurality of tone generation channels for a plurality of tone colors at independent time intervals, and
And a specifying means for specifying the non-hold mode and the non-hold mode.
Wherein the control means is in the hold mode by the designation means.
Is specified, the tone signal is converted to the tone generator.
A predetermined time interval for one operation of the performance operator in a row
And the non-hold mode is specified by the
If it is set, the musical tone signal is generated by the musical tone generating means.
One is generated for each operation of the performance operator.
It is an electronic musical instrument, characterized in that the at is. Further, the invention according to claim 2 includes a plurality of performance operators and the plurality of performance operators.
For each of the performance controls, select one of the
Assigning means for assigning a tone;
Depending on the operation, the tone of the tone assigned to each performance
Tone generation with multiple sound channels for generating sound signals
Means and a tone signal of a tone assigned to the performance operator.
Signal for one operation of the performance operator.
Generate multiple times at predetermined time intervals determined for each
Control means for controlling the musical tone generating means,
Managing the time intervals for each of the musical tones generated,
Generates a tone signal for multiple timbres using multiple pronunciation channels.
At the same time and at independent time intervals.
And the allocating means comprises:
For each of the performance operators, the first group of timbres or
One of the two groups of sounds
The color is arbitrarily assigned, and the control means
Assigned to the operated performance operator among the plurality of performance operators.
Ri or against was tone is tone of the first group before
It is determined whether the tone belongs to the second group.
The tone assigned to the performance operator is the first group.
Is assigned to the performance operator.
A tone signal of a tone is continuously generated by the tone generating means.
And the tone assigned to the operated performance operator is
If the tone belongs to the second group, the performance operator
The tone signal of the tone assigned to
Multiple times at a predetermined time interval for one operation of the performance operator
An electronic musical instrument characterized by being generated
You. Further, the invention according to claim 3, an electronic musical instrument according to claim 1, wherein the allocation means, any of the tone of the tone color or the second group of the first group for each of the plurality of performance operators Arbitrarily assigning one of the groups of timbres, and the control means determines whether the timbre assigned to the operated one of the plurality of performance operators is the timbre of the first group. Second
It is determined whether the tone is a group tone. If the tone assigned to the operated performance operator is the tone of the first group, the tone signal of the tone assigned to the performance operator is converted to the tone tone. The tone generated continuously by the generating means and assigned to the operated performance operator is the second tone.
When the tone is a group tone, a plurality of tone signals of the tone assigned to the performance operator are generated by the tone generator at a predetermined time interval for one operation of the performance operator. It is characterized by.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Such an embodiment shows one aspect of the present invention, does not limit the present invention, and can be arbitrarily changed within the scope of the present invention. In this embodiment, each pad is selectively used for producing any one of a preset percussion instrument sound, an assigned percussion instrument sound, and an assigned effect sound.

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument according to one embodiment of the present invention. In this figure, 1
The keyboard with multiple keys, 2 is a pad operation unit having a pad PA ₁ ~PA _M, the performance operation portion 3 is composed of these. Reference numeral 4 denotes a switch unit including a program mode switch 4a, a pad mode switch 4b, a hold mode switch 4c, and other switch groups. Reference numeral 5 denotes a tone generator which generates a tone signal of a melody tone.
And a tone generator TG2 for forming musical sound signals of percussion sounds and sound effects. Each tone signal output from the tone generator 5 is synthesized by the synthesizer 6,
The synthesized tone signal is supplied to the sound system 7,
A tone is generated.

A CPU 8 controls the entire electronic musical instrument.
(Central processing unit), 9 is a ROM (read only memory) in which a control program and various data tables are stored, and 10 is a RAM (random access memory) in which a temporary storage area and various registers and flags are set.
It is. Reference numeral 11 denotes a timer, which outputs an interrupt signal to the CPU 8 when a set time is counted. The above-described performance operation unit 3, switch unit 4, tone generation unit 5, CPU 8, ROM 9, RAM 10, and timer 11
Are interconnected via a bus B.

Next, various registers and flags set in the RAM 10 and various data tables stored in the ROM 9 will be listed and described below. Note that these RAMs
Representatives of various registers and flags in 10,
Representative data tables in the ROM 9 are shown in FIGS. 2 and 3, respectively.

<Registers and Flags in RAM 10> Program mode flag PGM: The contents are inverted each time the program switch 4a is pressed. The operation mode is switched as follows according to the content of this flag. PGM = "0" ... Normal performance mode. PGM = "1" ... Program mode.

(4) Pad mode flag PMD: The contents are inverted each time the pad mode switch 4b is pressed. The operation mode is switched as follows according to the content of this flag. PMD = "0" If you ...... pad PA ₁ ~PA _M is ON, which will be described later pad sound source table PET (i) (i = 1
~ M), a percussion instrument sound or a sound effect is generated. If the PMD = "1" ...... pad PA ₁ ~PA _M is ON, which will be described later pad assigning table PAST (i)
A percussion instrument sound or a sound effect is generated according to (i = 1 to M).

(2) Hold mode flag HLD: The contents are inverted each time the hold mode switch 4c is pressed. In accordance with the content of this flag, the control of forming percussion instrument sounds and sound effects is switched as follows. HLD = “0”... The upper two bits of PEN information (described later) are invalidated. In this case, similarly to the percussion instrument sound, the tone signal is formed such that it attenuates according to a predetermined curve after the attack. HLD = “1”... The upper two bits of PEN information (described later) are made valid.

(4) Sound source specification register PEN: PEN (percussion effect number) for specifying the type of sound
An 8-bit register for storing information. The upper two bits of the PEN information specify a musical tone section to be formed as shown below. Upper 2 bits = 00 percussion instrument sound. (Example) Hi-hat, cymbal, bass drum, triangle High-order 2 bits = 01 ... Sound effect with persistence. (Example) Wave, brake sound, explosion sound High-order 2 bits = 10 ... sound effect that repeats the attack at one predetermined time interval. (Example) Train sound, church bell, pistol Upper 2 bits = 11 ... Sound effect that repeats the attack at random time intervals. (Example) Thunder, birdsong, wind, river babble The lower 6 bits of the PEN information specify a detailed sound type.

(4) Pad ON flag PON (i) (i = 1
To M): Flags indicating whether the pads PA _{1 to} PA _M are ON. Flag PON when the pad PA _i is ON
(I) becomes "1".

Channel ON flag CHON (j) (j
= 1 to N): Flag indicating whether or not each tone generation channel of tone generator TG2 is in use. CHON (j) becomes "1" when the j-th sounding channel is in use.

{Channel table CHPEN (j) (j)
= 1 to N): A table indicating the type of sound source that is sounding in each sounding channel of the tone generator TG2. This table stores the PEN information described above.

(4) Pad assignment table PAST (i)
(I = _{1 to M} ): a table indicating the type of sound source corresponding to each of the pads PA _{1 to} PA _M. The PEN information described above is written in this table.

(4) Wait time table WTD for each channel
(J) (j = 1 to N): A table for storing the waiting time from the attack to the next attack when a sound effect that repeats an attack is generated, for each sounding channel. When producing a sound effect that repeats an attack in the j-th sounding channel of the tone generator TG2, the waiting time is stored in WTD (j).

<Table in ROM 9> ◇ Sound source type table KPC (k) (k = 1 to NK): In this electronic musical instrument, percussion sounds or sound effects are assigned to each key of the keyboard 1. This table stores PEN information indicating the type of sound assigned to each key.

(2) Pad sound source table: PET (i) (i
= 1 to M): This table is PEN information specifying the type of percussion instrument sounds or sound effects, pads PA ₁ ~PA _M
The factory set corresponding to.

{Wait time table WT (n) (n = 1 to 1)
NP): In this table, information designating the interval of occurrence of an attack portion in a sound effect is stored in correspondence with PEN information.

(2) Scaling table WTSP (n)
(N = 1 to NP): This table stores scaling parameters corresponding to each element of the waiting time table WT (n). When a sound effect with a random attack interval is generated, a random number is generated, multiplied by a scaling parameter, and the waiting time table WT
By adding the contents of (n), the waiting time until the next attack is calculated.

Hereinafter, the operation of the electronic musical instrument will be described. The CPU 8 of the electronic musical instrument executes a main routine whose general flow is shown in FIG. As shown in the figure, when the power of the electronic musical instrument is turned on, the CPU 8 executes an initial setting process (step S1).
The registers and flags in M10 are cleared. Then, the CPU 8 thereafter performs key processing (step S2), pad processing (step S3), and switch processing (step S2).
Repeat 4).

Here, when the key 1 is operated and a key ON event is detected, the key ON processing routine of FIG. 5 is started in the keyboard processing of step S2. Also, key O
When the FF event is detected, the key OFF processing routine of FIG. 6 is started. Also, if the pad PA ₁ ~PA _M is operated, in step S3, the pad OFF processing routine of the pad ON process routine or 8 of FIG. 7 is started. When each switch of the switch unit 4 is pressed, a processing routine corresponding to each switch is started and executed in step S4, as described below.

[Processing for Switch Operation] When the program mode switch 4a is pressed, a program mode switch processing routine shown in FIG. 9 is started. First, in step S11, the CPU 8 inverts the contents of the program mode flag PGM in the RAM 10. Next, proceeding to step S12, the CPU 8 sets the tone generator TG1.
Output a key-off signal to all the sounding channels of. As a result, the melody sound is stopped.

Next, when the operation proceeds to step S13, the CPU 8
Outputs a sound OFF signal to all tone generation channels of the tone generator TG2. As a result, the percussion instrument sound and the sound effect are stopped. Then, the processing in this routine ends, and the process returns to the main routine (FIG. 4) of the activation source.

On the other hand, when the pad mode switch 4b is pressed, a pad mode switch processing routine shown in FIG. 10 is started. First, in step S21, the contents of the pad mode flag PMD in the RAM 10 are inverted. Next, when the process proceeds to step S22, the hold mode flag HLD
Is determined as to whether or not the content is “0”. If the result of the determination is "YES", the process returns to the main routine. If the result of the determination is "NO", the flow proceeds to step S23 to send a sound OFF signal to the tone generator TG2 to stop the musical sound. Return to routine.

Here, when the hold mode flag HLD is "0", the sound effect is attenuated according to a predetermined attenuation curve similarly to the percussion instrument sound (this operation will be described later), so that a sound OFF signal is sent. No need. Therefore, this routine executes step S23 only when the hold mode flag HLD is "1".

When the hold mode switch 4c is pressed, a hold mode switch processing routine shown in FIG. 11 is started. First, in step S31, the contents of the hold mode flag HLD are inverted. Next, step S32
Then, a sound OFF signal is sent to all tone generation channels of the tone generator TG2 to stop the musical sound. Next, when the process proceeds to step S33, the tone generator TG2
Waiting time table WTD corresponding to all sounding channels
(J) Write data “0” to (j = 1 to N). Next, proceeding to step S34, the tone generator TG2
Channel table CHON corresponding to all sounding channels of
(J) Write data “0” to (j = 1 to N). Then, the process returns to the main routine.

As described above, the flags PGM, PMD, and HLD are switched in accordance with the operation of the switch section 4, whereby the operation mode of the electronic musical instrument is switched. Hereinafter, the operation of the program mode and the normal performance mode assigning a pad PA ₁ ~PA _M to a desired percussion sounds and sound effects.

[Program Mode] As described above, when the player presses the program mode switch 4a and sets the program mode flag PGM to "1", the operation mode of the CPU 8 becomes the program mode.
In this mode, when the player presses a key on the keyboard 1, the key ON processing routine of FIG. 5 is started in step S2 of the main routine of FIG.

First, the CPU 8 sets the key O on the keyboard 1
The key code of the key in which the N event has occurred is stored in the key code buffer KCD (step S101). Next, in step S102, the key ON flag KON is set to "1". Next, proceeding to step S103,
It is determined whether or not the program mode flag PGM is "1". In this case, the determination result is “YES”, and the process proceeds to step S104.

When proceeding to step S104, the CPU 8
Sound source type table KPC (k) in ROM 9 (k = 1 to
NK), the key code KC in the PEN information stored in
The data KPC (KCD) corresponding to D is read and RA
It is stored in the sound source designation register PEN in M10. Next, proceeding to step S105, the PE sound generation routine of FIG. 12 is started, and as a result, a percussion instrument sound or a sound effect corresponding to the PEN information in the register PEN is generated by the tone generator TG2.

The details of the PE sounding routine will be described later in the description of the "normal performance mode". Next, in step S106, it is determined whether any of the pad ON flags PON (i) (i = 1 to M) is "1" and the pad mode flag PMD is "1". If the determination is "NO", the process returns to the main routine. On the other hand, at this time, a certain pad PA _i
Is detected, the pad ON flag PON (i) is "1".

In this state, if "1" is set in the pad mode flag PMD,
The result of the determination in step S106 is "YES", and the flow proceeds to step S107. Proceeding to step S107, the CP
U8 determines the number i of the pad for which the pad mode flag PON (i) is "1", and determines the storage area PAST (i) in the pad assignment table corresponding to this number i.
Write PEN information to Then, the process returns to the main routine.

Next, in this program mode, when a key OFF event of the keyboard 1 is detected, the key OFF processing routine of FIG. 6 is started via step S2 of the main routine. First, proceed to step S201,
The key code of the key having the key OFF event is taken into the buffer BUF. Next, the process proceeds to step S202,
It is determined whether or not the program mode flag PGM is "1".

In this case, the judgment result is "YES",
Proceeding to step S203, it is determined whether there is any other key in the key ON state at this time. Then, the judgment result is “N
In the case of "O", the process proceeds to step S204, the key ON flag KON is cleared, and the process returns to the main routine. On the other hand, if the result of the determination is "YES", the flow proceeds to step S205, in which the key that has been turned ON the latest until now is searched for, and the key code KCD of that key is obtained.

In this case, the key ON flag KON is not cleared. That is, as long as one of the keys is ON, the key ON flag KON holds “1”, and the key code corresponding to the latest turned ON key among the keys currently being pressed is held in the KCD. You. In this case,
A pad is assigned to the pad by a pad ON event described later. Then, when the processing of this routine ends, the process returns to the main routine.

On the other hand, in this program mode, if any of the pads PA _{1 to} PA _M is turned on, the pad ON of FIG. 7 is turned on in step S3 of the main routine.
A processing routine is started. First, the flow proceeds to step S301, CPU 8 obtains the number i of the pad PA _i in the ON state.

Then, the process proceeds to a step S302, where "1" is set to a pad ON flag PON (i) corresponding to the pad number i. Next, when the process proceeds to step S303, it is determined whether or not the program mode flag PGM is "1". In this case, the determination result is "YES" and the process proceeds to step S304. In step S304, the key O
It is determined whether the N flag KON is "1". If the result of the determination is "YES", that is, if the key ON of the keyboard 1 has been detected at this time, step S
Proceed to 305.

At step S305, the key code K
Referring to the contents of the CD, the sound source type table KP in the ROM 9 is referred to.
Among the PEN information stored in C (k) (k = 1 to NK), data KPC (KC) corresponding to the key code KCD
D) is stored in the register PEN. Next, step S3
06, the pad assignment table PAST (i)
Of (i = 1 to M), the PEN information in the register PEN is written to the storage area PAST (i) corresponding to the pad where the pad ON event is detected. Then, the process returns to the main routine.

On the other hand, if the key ON flag KON is "0", there is no pressing of a key to be assigned, so that step S
The result of the determination in step 303 is "NO", and the processing after step S307 in this routine is performed. As a result, a percussion instrument sound or a sound effect is generated in the tone generator TG2. Then, the process returns to the main routine. In addition,
Since the processing after step S307 will be described in the “normal performance mode”, the description will be omitted here to avoid duplication.

Next, when a pad OFF event is detected in the program mode, a pad OFF processing routine shown in FIG. 8 is started. In this routine, the number i of the pad that has been turned off is detected (step S401), and then the pad ON flag (i) is cleared. Therefore, the pad PA _i is turned on (the pad ON processing routine is started).
After that, the pad ON flag PON (i) holds “1” until the pad is turned off (start of the pad OFF routine).

[0044] In this manner, the program mode, the key ON event is detected in the keyboard 1, when one of the pad ON event of the pad PA ₁ ~PA _M is detected, corresponding to the pads which are ON PEN information (read from the KPC table) corresponding to the key that was turned on, in the pad assignment table PAST (i)
Is assigned. Also, this pad assignment table P
The process of writing PEN information to AST (i) is key ON
It is included in both the processing routine and the pad ON processing routine. Therefore, regardless of which routine is activated first, the PE in the pad assignment table PAST (i) is
N information is normally assigned.

[Normal Performance Mode] When the program mode switch 4a is pressed to set the program mode flag PGM to "0", the operation mode becomes the normal performance mode. Hereinafter, Oite in this mode, the operation of CPU8 when the case key operation is performed and the pad operation is performed.

<Operation When Keyboard Operation is Performed> When the keyboard 1 is operated and a key ON event is detected, the key ON processing routine of FIG. 5 is started in step S2 of the main routine. In this case, the key code KCD of the key having the key ON event is fetched in step S101, and "1" is set in the key ON flag KON in step S102. Then, step S10
The determination result of 3 is “NO”, and the process proceeds to step S108.

In step S108, the number j of a vacant sound channel in the tone generator TG1 is determined. Then, the process proceeds to a step S109, wherein the key code K is assigned to the j-th sounding channel of the tone generator TG1.
The CD and the key ON signal are transmitted. As a result, the melody sound corresponding to the key code KCD is generated by the tone generator TG1. Then, the process returns to the main routine.

On the other hand, when the key OFF event of the keyboard 1 is detected, the process proceeds to step S2 of the main routine and the process proceeds to step S2 of FIG.
Is started. First, in step S201, a key code of a key having a key OFF event is taken into a buffer BUF. Next, the determination result in step S202 becomes "NO", and the process proceeds to step S206, in which a tone corresponding to the key code in the buffer BUF is generated among the currently sounding channels in the tone generator TG1. Search for things.

Then, the process proceeds to step S207 to determine whether or not there is a corresponding sounding channel. If "NO", the process returns to the main routine. On the other hand, if "YES",
That is, when there is a tone generation channel that is generating a tone corresponding to the key code of the buffer BUF, a key OFF signal is transmitted to the tone generation channel (step S20).
8). As a result, in the tone generator TG1, the melody sound corresponding to the key that has been turned off is stopped.

<Operation when Pad Operation is Performed> When the pads PA _{1 to} PA _M are operated and a pad ON event is detected, in step S3 of the main routine, FIG.
Is started. In this case, the number i of the pad having the pad ON event is obtained in step S301, and the pad ON flag PON (i) is set in step S302.

The pad ON flag PON (i)
The pad PA _i is OFF, until pad OFF processing routine (FIG. 8) is activated, to retain the "1". Then, the result of the determination in step S303 is "NO", the flow advances to step S307, and the pad mode flag P
It is determined whether or not MD is "1". If the result of the determination is "YES", the flow proceeds to step S308, and "NO"
In the case of, the process proceeds to step S309.

Next, in step S308, the pad address is
The number in the signature table PAST (i) (i = 1 to M)
The data PAST (i) corresponding to the signal i is stored in the register PEN.
And the process proceeds to step S310. Meanwhile, step
In step S309, the pad sound source table PET (i)
Data corresponding to the number i in (i = 1 to M)PET
(I) is written into the register PEN, and step S310
Proceed to. Then, in step S310, the PE in FIG.
The sounding routine is started.

Hereinafter, the processing flow of the PE sounding routine will be described. First, in step S501, it is determined whether or not the upper two bits of the PEN information are “00”. If the result of the determination is "YES", that is, if the musical sound to be generated is a percussion instrument sound, the flow proceeds to step S502.

In step S502, the number j of a vacant sounding channel in the tone generator TG2 is determined, and the channel ON flag CHON (j) is set. Next, the process proceeds to step S503, where sound source data and a sound ON signal corresponding to the PEN information are transmitted to the j-th sounding channel of the tone generator TG2. As a result, a percussion instrument sound corresponding to the PEN information is generated. Next, the process proceeds to step S504 to turn on the channel.
The flag CHON (j) is cleared, and the process returns to the activation source.

Next, the upper two bits of the PEN information are set to "0".
In the case of 1 ", that is, when the musical sound to be generated is a sound effect waiting for continuity, the result of the determination in step S501 is" NO ", and the result of determination in step S505 is" YES ". Proceed to S506. Then, it is determined whether or not the hold mode flag HLD is "1". If the result of the determination is "NO", the flow advances to step S507 to find the second decay rate of the envelope corresponding to the PEN information,
Import to DR.

Next, the process proceeds to step S508, in which the number j of the vacant sound channel in the tone generator TG2 is set.
And the corresponding channel ON flag CHON (j)
Is set. Next, in step S509, the PEN is set to the j-th sounding channel of the tone generator TG2.
It sends out sound source data corresponding to the information, information stored in the buffer 2DR, and a sound ON signal. As a result, PEN
A sound effect corresponding to the information is generated.

In this case, as shown in FIG. 13, the envelope of the sound effect generated rises at a predetermined attack rate AR, falls at a first decay rate 1DR, and thereafter, at a second decay rate indicated by a buffer 2DR. ,
That is, it attenuates at the second decay rate corresponding to the PEN information. For this reason, the sound effect generated by the ton generator TG2 is an unsustainable sound effect as in the case of the percussion instrument. Next, the process proceeds to step S510, clears the channel ON flag CHON (j), and returns to the start source.

On the other hand, if the hold flag HLD is "1", the result of the determination in step S506 is "YE
S ", and proceeds to step S511. Then, data “0” is stored in the buffer 2DR. Then step S
Proceeding to 512, the channel table CHPEN (j) (j
= 1 to N), it is determined whether or not there is one that matches the PEN information. And the judgment result is “YES”
In step S513, the process proceeds to step S513 to capture the number j of the corresponding sounding channel, and then proceeds to step S514 to send a sound OFF signal to the j-th sounding channel of the tone generator TG2 to mute the tone, and then turn the channel ON The flag CHON (j) is cleared (step S510).

This corresponds to a process of silencing a sound effect having persistence generated by the first pad ON event by the second pad ON event. The process of generating a lasting sound effect by the first pad ON event will be described later. When step S510 ends, the process returns to the activation source.

On the other hand, if the result of the determination in step S512 is “N
O ”, that is, the channel table CHPEN
(J) If there is no information matching the PEN information in (j = 1 to N), the above-described steps S508 to S508 are performed.
Step S510 is executed to generate a sound effect, and the process returns to the activation source.

However, in this case, since the content of the buffer 2DR is "0", the tone generator TG2
As shown in FIG. 13, the envelope of the sound effect generated by the second decay section has persistence. This corresponds to a process of generating a sound effect having a sustainability by the first pad ON event described above.

Next, the upper two bits of the PEN information are set to “1”.
If it is “0” or “11”, step S501
The process proceeds to step S515 via steps S505 and S505. Then, it is determined whether or not the hold mode flag HLD is “1”. If the determination result is “NO”, the process proceeds to step S516. In step S516, the tone generator T
The number j of the vacant sound channel in G2 is obtained.

Then, the flow advances to step S517 to transmit sound source data and a sound ON signal corresponding to the PEN information to the j-th sounding channel of the tone generator TG2. As a result, a percussion instrument sound corresponding to the PEN information is generated. Further, the PEN information is stored in the storage area CHPEN (j) corresponding to the number j in the channel table. Next, the routine proceeds to step S518, where the WTD (j) setting routine of FIG. 14 is started.

At step S601 of this routine, the CPU 8 sets the channel table storage area CHPE
The PEN information stored in N (j) is read,
The waiting time information WT (PEN) corresponding to the PEN information is read from the waiting time table WT (n) (n = 1 to N) in the table and stored in the buffer WBUF.

Then, the flow advances to step S602 to determine whether the second bit of the PEN information is "1". If the determination result is “NO”, that is, if the upper two bits of the PEN information are “10”, the process proceeds to step S603,
The waiting time information in the buffer WBUF is stored in a waiting time table storage area WTD corresponding to the j-th sounding channel.
Write to (j). Then, the process returns to the start source of this routine (in this case, the PE sound generation routine).

On the other hand, if the result of the determination in step S 602 is “Y
In the case of “ES”, that is, when the upper two bits of the PEN information are “11”, the process proceeds to step S604, where a random number is generated and stored in the buffer RDM. And step S
Proceeding to 605, the waiting time is obtained from the waiting time information WT (PEN), the scaling parameter WTSP (PEN) and the random number RDM from the ROM 9 corresponding to the PEN information, and the waiting time is obtained according to the following equation (1). Write to the storage area WTD (j) corresponding to j.

WTD (j) ← WT (PEN) + RDM * WTSP (PEN) (1) Then, the process returns to the activation source (PE sounding routine in this case). Then, the process proceeds to step S519 of the PE sound generation routine, in which a channel ON flag CHON (j) is set.
The process returns to the pad ON processing routine that is the activation source.

On the other hand, step S51 of the PE sound generation routine
If the determination result of step 5 is "YES", that is, if the hold mode flag HLD is "1", step S52 is executed.
0, the channel table CHPEN (j) (j = 1
-N) is determined whether or not any of the information matching the PEN information is included. If the determination result is "NO", the above-described steps S516 to S519 are executed, and the process returns to the pad ON processing routine. Step S5
If the determination result in step 20 is "YES", the channel ON flag CHON (j) of the corresponding channel is cleared.

In this electronic musical instrument, the timer 11 outputs an interrupt signal to the CPU 8 at regular time intervals.
As a result, the CPU 8 interrupts the currently executing process and starts the timer interrupt routine shown in FIG. First,
In step S701, the hold mode flag HL
It is determined whether D is "1". Then, the judgment result is “N
In the case of "O", this routine is exited and the interrupted processing is resumed.

On the other hand, if the decision result in the step S701 is "YES", the process advances to a step S702 to change the variable j
Is initially set to 1. Next, the process proceeds to step S703.
It is determined whether or not the channel ON flag CHON (j) is “1”. Here, the channel ON flag CHON
The state of (j) = 1 indicates that a sound effect that repeats an attack is assigned to the channel.

If the determination is "NO", the flow proceeds to step S708, and if "YES", the flow proceeds to step S704. Next, in step S704, the content WTD (j) of the waiting time table corresponding to the j-th sounding channel of the tone generator TG2 is decremented. Then, the process proceeds to step S705 to determine whether or not the content WTD (j) of the table has become “0”. If the result of the determination is "NO", step S7 is executed.
08, and if “YES”, the flow proceeds to step S706.

Next, in step S706, a sound ON signal is sent to the j-th sounding channel of the tone generator. As a result, the sound effect that is sounding in the sounding channel (number j) is attacked again. Next, in step S707, the above-described WTD (j) setting routine is started, whereby the waiting time until the next attack on the sounding channel (number j) is calculated, and the contents WTD ( j) is updated.

Here, the contents WTD of the waiting time table
(J), as can be understood from the above description, the PEN information corresponding to the sounding channel (number j), that is, the second bit of the channel table content CHPEN (j) is “0”.
Is always a constant value corresponding to the PEN information, while if the second bit is "1", the value is a value corresponding to the random number generated at that time. Next, in step S708, the variable j is incremented. Then, step S709
It is determined whether or not the variable j has exceeded the maximum value N of the tone generation channel number. If "NO", the process returns to the step S703. If "YES", the timer interrupt routine is terminated and the interrupted process is resumed. I do.

As described above, the hold mode flag H
When the LD is "1", a pad to which PEN information whose upper 2 bits are "10" or "11" is assigned (this pad is referred to as a pad A, for example) is turned on, and the pad of the PEN information is turned on. If the event is the first time, the PE sounding routine of FIG.
Steps S16 to S519 are executed, PEN information is registered in the assigned sounding channel (jth), and the channel ON flag CHON (j) is set.

Then, as described above, the channel ON flag C
When HON (j) is set, a timer interrupt processing routine is started in the sounding channel (number j), and a re-attack of the sound effect is repeated every time the waiting time WTD (j) becomes "0". It is. In this state, it is assumed that the pad A is turned on again. In this case, P
The determination result of step S520 of the E sound generation routine is “YE
S ", and the process proceeds to step S521.

Then, the number j of the sounding channel which is sounding the sound effect of the PEN information corresponding to the pad A is determined (step S521), the channel ON flag CHON (j) is cleared (step S522), and the pad ON processing routine is performed. Return to. As a result, the sound effect corresponding to the pad A is stopped in the sound channel (number j). As described above, when the upper two bits of the PEN information of the pad that has been turned on are “10” or “11” and the hold mode flag HLD is “1”, the pad is turned on for the first time, A sound effect that repeats the attack is generated in the tone generator, and when the pad is turned on again, the sound effect is stopped.

[0077]

As described above, according to the present invention, any of a plurality of timbres is assigned.
When multiple performance controls are operated, the performance
The tone assigned to the child for each tone for one operation
Is repeated at a predetermined time interval that is set in advance, and
Since it is possible to pronounce multiple sounds at the same time, for example,
It is as if it is a continuous sound by repeatedly producing a decay tone
Can be pronounced as if, and even possible
Rich variety of musical tones, and a variety of performance effects
You can drop it. Hold mode and non-
Hold mode is specified and hold mode is specified.
In this case, one operation of the performance
The tone assigned to the selected performance control is assigned to that tone.
Is repeatedly sounded at predetermined time intervals
If the default mode is specified, one operation
The tone assigned to the created performance control is emitted only once.
Since the sound is played, switch the tone generation mode according to the situation
Can be easily performed. Furthermore, depending on the group to which belongs tone assigned to each performance operators, the performance
One operation of the control is assigned to the performance control
The tone is pronounced only once or played
The specified time specified for the tone assigned to the control
Since the sound is repeated at intervals, for example, it is possible to repeatedly sound the decay tone and sound as if it were a continuous sound, and it is possible to continuously sound the sustained sound. It is possible to arbitrarily set a tone color for each of the plurality of performance operators, and it is possible to switch between continuous sound generation and repeated sound generation according to the operated performance operators.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram illustrating a configuration of a register and a flag in a RAM 10 in the electronic musical instrument.

FIG. 3 is an explanatory diagram for explaining a table configuration in a ROM 9 in the electronic musical instrument.

FIG. 4 is a flowchart showing a processing procedure of a main routine in the electronic musical instrument.

FIG. 5 is a flowchart showing a processing procedure of a key ON processing routine in the electronic musical instrument.

FIG. 6 is a flowchart showing a processing procedure of a key OFF processing routine in the electronic musical instrument.

FIG. 7 is a flowchart showing a processing procedure of a pad ON processing routine in the electronic musical instrument.

FIG. 8 is a flowchart showing a processing procedure of a pad OFF processing routine in the electronic musical instrument.

FIG. 9 is a flowchart showing a processing procedure of a program mode switch processing routine in the electronic musical instrument.

FIG. 10 is a flowchart showing a processing procedure of a pad mode switch processing routine in the electronic musical instrument.

FIG. 11 is a flowchart showing a processing procedure of a hold mode switch processing routine in the electronic musical instrument.

FIG. 12 is a flowchart showing a processing procedure of a PE sounding routine in the electronic musical instrument.

FIG. 13 is a diagram showing an envelope waveform in the electronic musical instrument.

FIG. 14 is a flowchart showing a processing procedure of a WTD (j) setting routine in the electronic musical instrument.

FIG. 15 is a flowchart showing a processing procedure of a timer interrupt routine in the electronic musical instrument.

[Explanation of symbols]

1 ...... keyboard, 2 ...... pad operation unit, PA ₁ ~PA _M ...... pad, 3 ...... performance operation unit, 4 ...... switch unit, 5 ...... tone formation portion, 8 ...... CPU, 9 ...... ROM 10, RA
M, 11 ... timer.

Claims (3)

(57) [Claims] 1. A plurality of performance operators; an assigning means for assigning an arbitrary tone color among a plurality of tone colors to each of the plurality of performance operators; A musical tone generating means having a plurality of sounding channels for generating musical tone signals of a tone assigned to the performance operator; and a tone signal of the tone assigned to the performance operator being operated by one operation of the performance operator. Control means for controlling the tone generating means so as to generate a plurality of repetitions at predetermined time intervals determined for each of the timbres, wherein the control means controls the time interval for each of the generated tone sounds; at the same time a plurality of sound channels for a plurality of tone generation signal, and the one which allows repeated in separate time intervals, specifying means for specifying a hold mode and a non-hold mode
The control means , when a hold mode is designated by the designation means,
The musical tone signal is transmitted to one of the performance operators by the musical tone generating means.
When a non-hold mode is designated by the designating means, a
Transmits the musical tone signal to the musical performance
Electronic musical instrument, characterized in that with respect to a single operation of those which generate one. 2. A plurality of performance operators and a plurality of tone colors for each of the plurality of performance operators.
Assigning means for assigning the desired tone, and assigning each of the performance operators according to the operation of the plurality of performance operators.
Multiple tone generators that generate tone signals of the assigned tone
A tone generator having a channel and a tone signal of a tone assigned to the performance operator.
For each operation of the performance operator, the tone is determined for each tone.
So that multiple occurrences occur at predetermined time intervals.
Control means for controlling a musical sound generating means,
Managing the time interval for each musical tone
Generation of multiple tones simultaneously on multiple sound channels
And repeatable at independent time intervals
Wherein the allocating means includes a first group of sounds for each of the plurality of performance operators.
One of the colors or the second group of tones
The tone of the loop is arbitrarily assigned, and the control means controls an operation of the plurality of performance operators.
The tone assigned to the selected performance operator is the first group.
The tone of the second group or the tone of the second group.
And the tone assigned to the operated performance operator is
If the tone belongs to the first group, assign it to the performance operator.
The tone signal of the assigned tone is maintained by the tone generator.
Generated and the tone assigned to the operated performance operator is
If the tone belongs to the second group, assign it to the performance operator.
The tone signal of the assigned tone is played by the tone generator.
Multiple occurrences at a predetermined time interval for one operation of the playing operator
An electronic musical instrument characterized in that the electronic musical instrument is adapted to cause 3. The allocating means arbitrarily allocates one of a first group of timbres and a second group of timbres to each of the plurality of performance operators, and The means determines whether the tone assigned to the operated performance operator of the plurality of performance operators is the tone of the first group or the tone of the second group, and When the tone assigned to the performance operator is the tone of the first group, a tone signal of the tone assigned to the performance operator is continuously generated by the tone generator, and When the tone assigned to the operator is the tone of the second group, the tone signal of the tone assigned to the performance operator is used by the tone generator to perform one operation of the performance operator. Electronic musical instrument according to claim 1, characterized in that for a plurality occur at predetermined time intervals in.