JP3409333B2 - Music generator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone generating device for generating a musical tone in accordance with musical tone control information such as a key-on signal (note-on signal), and more particularly to a musical tone generating device capable of generating an effective musical tone. .

[0002]

2. Description of the Related Art Conventionally, there is an electronic musical instrument in which a duo effect is obtained by a process called a key-on delay (for example, see Japanese Patent Laid-Open No. 2-181795). This key-on delay generates musical tones with two series of sound sources, and delays the musical tones of one series from the musical tones of the other series so that the musical tone waveforms of the two series are different in phase. It is an effect.

[0003]

As described above, a technique for delaying two series of musical tones to obtain musical tones having different timbres has been known in the past, but only different tone generation timings of the two musical tones are used. There was a limit to how effective sound could be made.

SUMMARY OF THE INVENTION An object of the present invention is to provide a musical tone generating device capable of producing a musical tone having a sound effect by a simple operation.

[0005]

In order to solve the above-mentioned problems, the musical tone generating apparatus according to claim 1 of the present invention has a first musical tone and a sequence from the first musical tone in response to one sounding instruction. A musical tone generating device for generating at least three delayed musical tones such as a second musical tone and a third musical tone, the delay time from the first musical tone to the second musical tone and the delay time from the second musical tone to the third musical tone, or A musical tone information setting means capable of setting a delay time and a pitch for the pitches of the second musical tone and the third musical tone with respect to the first musical tone is provided, and the musical tone is generated based on the delay time and the pitch set by the musical tone information setting means. It is characterized by having done. Further, according to claim 2 of the present invention.
The musical tone generator generates the first musical tone for one pronunciation instruction.
Second and third musical tones sequentially delayed from the first musical tone
Is a tone generator that generates at least three tones
The delay time from the first tone to the second tone and the second tone
Delay time from the 3rd tone to the 1st tone
Regarding the pitch of the 2nd and 3rd tones,
If you set at least one of the interval and pitch
In general, the musical tone information setting for setting whether or not the first musical tone is generated.
The information set by the musical tone information setting means is provided with a setting means.
Based on at least one of the above delay time or pitch
Generate different tones and generate the first tone.
It is characterized in that the presence or absence of life is controlled.

[0006]

In the musical tone generating apparatus of the present invention, when a sounding instruction is given by a key-on signal or the like, at least three of the first musical tone and the second and third musical tones sequentially delayed from the first musical tone.
Generate a musical tone.

On the other hand, the musical tone information setting means in claim 1
The delay time and pitch can be set by
By the tone information setting means, the delay time from the first tone to the second tone and the delay time from the second tone to the third tone, or the delay between the second tone and the third tone with respect to the first tone is delayed. At least one of time and pitch can be set.

The first, second and third musical tones generated by the tone generation instruction are musical tones having different delay times or pitches based on the information set by the musical tone information setting means.

If the musical tone information setting means can set the presence or absence of the generation of the first musical tone like the musical tone information such as the delay time and the pitch, the generation of the first musical tone can be eliminated, so that there are two series. Musical tones are generated in (multiple sequences), one sequence generates the first musical tone, and the other sequence does not generate the first musical tone. For example, one sequence of musical tones is synthesized to reverberant sounds. It is also possible to synthesize the other tone from the middle.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a block diagram of a musical tone generating apparatus according to an embodiment of the present invention, and FIG. 3 is a diagram showing a part of its panel surface. This device is controlled by the CPU 1 and takes in a MIDI signal from the external device A connected to the MIDI terminal 2 through the MIDI interface 2a and generates a musical sound according to the MIDI signal.

Further, in the apparatus of this embodiment, the key-on signal from the pad B connected to the trigger terminal 3 is taken in through the pad interface 3a, so that the rhythm of the drum or the like can be obtained in addition to the musical tone corresponding to the MIDI signal. It constitutes a rhythm sound source module that can generate sounds.

The tone generator circuit 4 is a tone generator that generates a tone signal of a rhythm sound set in advance according to the operation of the pad B, a tone generator having a plurality of tone generation channels capable of simultaneously producing sound by time division multiplexing processing, and , PCM data and the like, a waveform memory storing a plurality of types of waveform data having different tones and the like.

When the tone color data is set (input) from the CPU 1 for any tone generation channel, the tone generator circuit 4 reads the waveform data corresponding to the tone color data set in the tone generation channel from the waveform memory and Generates a tone signal with a pitch (pitch) or velocity (level) according to tone color data. Note that pad B
The tone generator which generates a musical tone signal by the operation of is designed to naturally attenuate the amplitude envelope of the musical tone signal.

The tone generator circuit 4 outputs a tone signal to the left and right sound systems 5 according to the panning data in the tone color data.
Selectively output to L, 5R, each sound system 5L,
5R D / A converts the tone signal input from the tone generator circuit 4 and amplifies it to generate a tone. The sound source is not limited to the waveform data reading type, but may be an FM sound source or the like.

In the MIDI signal, for example, key-on (note-on) or key-off (note-off) is designated by 3-byte data called a channel voice message, and the first byte indicates key-on / key-off by upper 4 bits and lower 4 bits. Note message showing MIDI channel number, 2nd byte is note number, 3rd
Bytes are each velocity data. The upper 4 bits of the note message indicate key-on when "9" and key-off when "8".

In the ROM 6, as shown in FIG.
A tone color number table in which note numbers and tone color numbers TN are associated with each other for each DI channel number is stored, and the tone color numbers corresponding to the MIDI channel numbers and note numbers in the MIDI signal are referenced by referring to this tone color number table. The tone color of the musical tone to be read out is designated and designated by this tone color number. The tone number table is provided in the RAM 7 and MI
The correspondence relationship between the DI channel number, the note number and the tone color number may be settable.

Here, in this embodiment, 1 is assigned to each tone color number.
A series or a plurality of series of musical tones are associated with each other, and one series or a plurality of series of musical tones are generated according to each tone color number. In addition, for each series of musical tones, the first key
It is possible to generate the musical tones and then sequentially delay them to repeat the pronunciation of the second musical tone, the third musical tone, ... Further, the level of each delayed musical tone, the pitch, the delay time, and whether or not to generate the first musical tone. It is possible to set such as.

That is, as shown in FIG. 1, a delay number DLN (DLN = DLN = in this example) indicating the number of musical tones w2 and w3 which are generated with a delay from the key-on timing.
2), 1st indicating whether or not to pronounce the first musical sound w1
Flag 1ST, delay time D indicating the delay time from the first musical sound w1 to the second musical sound w2, the delay level DLV indicating the level change from the level of the previous musical sound, and the delay pitch indicating the pitch change from the pitch of the previous musical sound. DPC,
The delay time change amount DTV indicating the change amount of the delay time can be set respectively. In this embodiment, the setting range of each of these parameters is as shown in Table 1 below.

[0019]

[Table 1]

As shown in FIG. 4, a storage area of a tone color data memory for storing tone color data corresponding to the tone color number TN is set in the RAM 7, and for each tone color number TN,
The number of layers indicating the number of sequences is stored, and the tone color data is set and stored for each sequence distinguished by the wave number VWN.

Each tone color data includes a delay number DLN, 1s
t flag 1ST, delay time D, delay level D
LV, delay pitch DPC, delay time change amount D
It is composed of TV parameters and other tone color data. These tone color data are stored by the battery backup when set by the setting operation, and are predetermined when the setting operation is not performed. Preset value is set. Note that pitch data, panning data, etc. are included in the other tone color data.

In FIG. 2, the LCD 8 is a display for displaying the type of parameter and the current value thereof when setting the parameters of the tone color data for each series, and is a display input from the CPU 1 via the LCD interface 8a. Based on the data, for example, the display as shown in FIG. 3 is performed.

The panel switch 9 is, as shown in FIG. 3, a screen switch 91 for switching the display screen of the LCD 8, a cursor key 92 for selecting setting data such as parameters, and data for changing parameters and the like. A data change key 93 is provided, and each switch operation is performed by the CPU via the panel switch interface 9a.
1 is detected.

By operating the screen changeover switch 91, the tone color number setting screen and the parameter display screens of the respective series W1, W2 corresponding to this tone color number are changed over. By operating the change key 93, the parameters of the tone color data are set.

In this embodiment, as shown in FIG.
A delay buffer consisting of areas DB [0], DB [1], ..., DB [31] is set in the RAM 7, and for each series of tone color numbers for which key-on or key-off is designated, the tone of that series is delayed by the number of delays. Each parameter of the series is stored in this delay buffer until it is sounded and muted a number of times according to.

Further, in the RAM 7, as shown in FIG. 7, a tone generation / mute queue in which a write / read address is indicated by a write pointer WP and a read pointer RP is set, and parameters are written in the delay buffer. Write the parameter to this pronunciation / mute queue for the sequenced sound or mute event timing.

The CPU 1 counts the internal clock and performs a timer interrupt process every several msec (2 msec to 5 msec). As will be described later, in this interrupt process, sound is generated or generated based on the delay time PTIM of DB [i]. The timing of mute is measured, and the writing process to the pronunciation / mute queue is performed. Then, in the sound production / silence processing, the sound production / silence processing is performed based on the parameters read from the sound production / silence queue.

The delay buffer is used for each area DB.
Among [0], DB [1], ... DB [31], the one having the delay time count value PTIM of “0” is set as an empty area.

Further, as shown in FIG. 8, the tone generator circuit 4
A sound allocation register for storing the sounding channel number of the sound currently being sounded is set in the RAM 7, and the parameters for the sound being sounded are written in each area of this sound allocation register, and the sound tones for which mute is specified are specified. The sounding channel to be muted is detected by detecting the coincidence between the parameter of (1) and the parameter of each area of the sounding assignment register.

The contents of the area corresponding to the sounding channel number muted in each area of the sounding allocation register are cleared to "0", and an empty channel is detected by detecting this "0" in the sounding allocation processing.

The ROM 6 stores the control programs shown in the flow charts of FIGS. 9 to 14, and the CPU 1
Controls the entire device using the register and buffer area of the RAM 7 based on this control program.

FIG. 9 is a flow chart of the main routine of the control program in the embodiment, and FIGS. 10 to 14 are flow charts of the subroutine and the timer interrupt processing. The operation will be described based on each flow chart. In the following description and each flow chart, data used for control and each register and flag thereof are represented by the following labels, and each register and flag and their contents are represented by the same label unless otherwise specified.

TN: Tone number LYN: Number of layers (number of sequences) DLN: Number of delays 1ST: 1st flag TIM: Delay time DB [i]: Delay buffer (i = 0 to 31) PTIM: Counter of delay time (currently) Remaining delay time) NDNL: Delay number counter (next delay number) VWM: Wave number (sequential number) NTMES: MIDI signal note message NTNUM: MIDI signal note number VEL: Velocity value DLV: Delay level DPC: Delay pitch CH: Sound generation channel number DTV: Delay time change amount

When the CPU 1 starts the processing of the main routine of FIG. 9 by turning on the power, etc., initial setting processing such as setup of various registers is carried out in step S1, panel processing of FIG. 10 is carried out in step S2, and step S3 is carried out. move on.

In step S3, it is determined whether or not a MIDI signal is received. If no MIDI signal is received, the process proceeds to step S5. If a MIDI signal is received, the MIDI signals shown in FIGS.
A signal reception process is performed and it progresses to step S5.

Next, in step S5, the pronunciation / silence processing of FIG. 14 is performed, in step S6, other processing is performed, and the processing of step S2 and subsequent steps is repeated. In addition, in the other processing of step S6, the sound generation processing by the operation of the pad B and L
Display processing and the like on the CD 8 are performed.

In the panel processing of FIG. 10, step S11
Then, it is determined whether or not the data (parameter) is changed according to each switch operation on the panel switch 9, and if there is no data change, the process directly returns to the main routine, and if there is a data change, it is determined in step S12. Change value R
Write to the tone color data memory of AM7 and return to the main routine.

In the MIDI signal reception process of FIG. 11, first, in step S21, it is determined whether or not there is a key-on event due to a note message in the MIDI signal. If there is no key-on event, the process proceeds to step S22, and if there is a key-on event. The processing after step S24 is performed.

In step S22, it is determined whether or not there is a key-off event due to a note message in the MIDI signal, and if there is no key-off event, other processing of the MIDI signal is performed in step S23 to return to the main routine, and then step S22. If there is a key-off signal in
To step S209.

In step S24, the MI of the MIDI signal is
The tone color number table is obtained based on the DI channel number and the note number, and the tone color number is obtained and stored in the register TN. In step S25, the number of layers of the tone color data of the tone color number TN is obtained from the tone color data memory. Is stored in the register LYN, "1" is set in the register j in step S26, and the process proceeds to step S27.

Here, the processing from step S27 is repeated by the number of layers LYN of the tone color number TN, that is, the number of sequences, by the increment of the register j in step S208 and the determination in step S207.

First, in step S27, the parameters of the delay number, the 1st flag and the delay time are read from the tone color data of the wave number j of the tone color number TN, stored in the registers DLN, 1ST and TIM respectively, and the process proceeds to step S28.

In step S28, it is determined whether or not DLN> 0. If DLN> 0, the current sequence (wave number j) is set to perform delayed sound generation. If DLN> 0 is not processed, the current sequence is set to sound only the first tone, so "0" is set in the register NDLN and the register P is set.
"1" is stored in the TIM and "1" is stored in the register VWM, and the processing from step S204 is performed.

That is, in step S29, PT of the areas DB [0] to DB [31] of the delay buffer is used.
Find an empty area DB [k] in which IM is "0", and set "1" to the register NDLN in step S201.
TIM (delay time) is stored in the register PTIM and j is stored in the register VWM, and the process proceeds to step S202.

In step S202, NTMES, NTN are added to the empty area DB [k] found in step S29.
The parameters UM, VEL, NDLN, PTIM, and VWN are written, and "ON / OFF" of the flag 1ST is checked in step S203. If "ON", the first tone is sounded, so the process proceeds to step S204, and "OFF". If “”, the process proceeds to step S207.

On the other hand, in step S204, the tone generator circuit 4
Is performed and the channel number of the assigned pronunciation channel is stored in the register CH, and step S20 is performed.
In the area corresponding to the channel number CH of the pronunciation assignment register in 5, NTMES, NTNUM, NDLN, PTI
Write each parameter of M and VWN.

Then, in step S206, the tone color number T
Other tone color data is read out from the tone color data of the sequence corresponding to the N wave number VWN, and is read out.
Send to the CH channel of the
Proceed to 207.

In step S207, it is determined whether or not j = LYN, that is, whether or not the current wave number has reached the number of layers of the current timbre number. If j = LYN, j is incremented in step S208. Then, the processes from step S27 are repeated, and if j = LYN, the process returns to the main routine.

The above processing is for the key-on event of the MIDI signal, and for the tone of tone color TN for which key-on is designated, the parameters of each series are written in the delay buffer, and when the tone is pronounced as the first tone. Parameters other than the VEL (velocity) of the series are written in the sound allocation register.

The processing after step S209 in FIG.
It is a process for a key-off event of the IDI signal,
First, in step S209, the tone color number table is obtained based on the MIDI channel number and the note number, and the tone color number is obtained and stored in the register TN. In step S210, the number of layers of tone color data of the tone color number TN is obtained. Store in register LYN, step S21
At step S212, the register j is set to "1" by 1
Proceed to.

The processing from step S212 onward is repeated by the number of series by the increment of the register j in step S221 and the determination in step S220 in the same manner as described above. In step S212, the tone color data of the wave number j of the tone color number TN is converted into the number of delays. The parameters of the delay time are read out and stored in the registers DLN and TIM, respectively, and the process proceeds to step S213.

In step S213, it is determined whether or not DLN> 0. If DLN> 0, it means that the key-off is performed for the sequence set to generate the second and subsequent tones, so that the delayed muffling is performed. In order to carry out the processing, step S214 and the subsequent steps are performed. If DLN> 0 is not satisfied, the key off is for the sequence set to sound only the first tone, so "0" is set in the register NDLN and the register PTI is set.
"1" is stored in M and "1" is stored in the register VWM, and the processing from step S218 is performed to immediately mute the sound.

That is, in step S214, the areas DB [0] to DB [31] of the delay buffer are changed to PTIM.
Is searched for an empty area DB [k] whose value is "0", and in step S215 the register NDLN is set to "1", the register PTIM is set to TIM (delay time), and the register V
Each j is stored in the WM and the process proceeds to step S216.

In step S216, the empty area DB
In [k], NTMES, NTNUM, VEL, NDL
Each parameter of N, PTIM and VWN is written, and "ON / OFF" of the flag 1ST is checked in step S217. If "ON", the first musical tone is muted, so the process proceeds to step S218, and if "OFF". Step S22
Go to 0.

On the other hand, in step S218, for each area corresponding to the channel number "0" to "15" of the tone generation assignment register, NTMES, NTNUM, NDLN,
The channel number of the area where the PTIM and VWN parameters match is searched for, and in step S219, all the data of the area corresponding to the found channel number is set to "0", and a mute instruction is given to the corresponding channel of the tone generator circuit 4. , And proceeds to step S220.

In step S220, it is determined whether or not j = LYN, that is, whether or not the processing of each series is completed. If j = LYN is not satisfied, j is incremented in step S221, and the processing from step S212 onward is performed. Repeatedly, if j = LYN, the process returns to the main routine.

With the above key-off processing, NT is selected for the tone of tone color TN for which key-on is designated.
The parameters of each series for which the key-off is designated by the MES are written in the delay buffer DB, and when the first musical tone is muted, "0" is written in the corresponding area of the tone generation allocation register to make it an empty area.

Next, the timer interrupt processing of FIG.
It is activated every few msec by U1 timer interrupt,
In step S31, "0" is set in the register i, the register i is incremented in step S303, and the determination in step S302 is performed, so that the processes in and after step S32 are performed in the areas DB [0] to DB [3 of the delay buffer.
1] every time.

First, in step S32, it is determined whether or not PTIM = 0 for the area DB [i] of the delay buffer. If PTIM = 0, the process proceeds to step S302. If PTIM = 0 is not satisfied, the process proceeds to step S33. The PTIM is decremented for the area DB [i] and the process proceeds to step S34.

In this interrupt processing, each area D
The delay time is measured by decrementing PTIM (current delay time) of B [i], and step S3
By the processing from 4 onward, the processing for sounding or muting is performed for the area where PTIM = 0 now, and the delay time PTIM for the next event (sounding or muting) is set as the delay time change amount and the current number of delays. And update accordingly.

That is, in step S34, the area DB
It is determined whether PTIM = 0 for [i], and P
If it is not TIM = 0, it is not the timing of the event of sounding or muffling, so the routine proceeds to step S302.

If PTIM = 0, it is the timing of the event of the musical sound corresponding to the parameter written in the area DB [i], and therefore the area DB is determined in step S35.
All the data of [i] is written in the tone generation / mute queue while advancing the write pointer WP, and the process proceeds to step S36.

In step S36, the MIDI channel number and the note number N in the NTMES of the area DB [i].
The tone color number table is obtained based on TNUM and the tone color number is obtained and stored in the register TN. In step S37, the tone color data is stored by the tone color number TN and the wave number VWN in the area DB [i]. The corresponding delay time, delay time change amount, and delay number parameters are read from
Store in IM, DTV, DLN respectively and step S3
Go to 8.

In step S38, it is determined whether NDLN <DLN for area DB [i], and NDLN
If N <DLN is not satisfied, the current delay number NDLN has reached the set delay number DLN, so the process proceeds to step S302. If NDLN <DLN, the current delay number NDLN is set. Since it has not reached DLN, the process proceeds to step S39.

In step S39, for the area DB [i], the DTV is set to the TIM and the current delay number NDLN is set.
In addition, the value (TIM + DTV × NDLN) is stored in the register PTIM, and the area DB is stored in step S301.
For [i], the current delay number NDLN is incremented and the process proceeds to step S302.

In step S302, it is determined whether or not i = 31, that is, whether or not the processing for all areas DB [0] to DB [31] has been completed. If i = 31, then in step S303. i is incremented and the processes from step S32 are repeated. If i = 31, the process returns to the main routine.

By the above timer interrupt processing, the timing of sound generation and mute determined by the first delay time D and the delay time change amount DTV shown in FIG. 1 is detected for each series in which the parameters are stored in the delay buffer. , At each timing, the parameters of that series are written in the sound production / silence queue.

For the series in which the processing for the number of delays has been completed, the delay time PTIM of the corresponding area of the delay buffer DB is set to "0", and this "0" is set as an empty area of the delay buffer DB.

The sound generation / mute processing of FIG. 14 is processing for instructing the sound source circuit 4 to sound and mute according to the content of the sound generation / mute queue. It is determined whether the write pointer WP and the write pointer WP are not equal. If they are equal, there is no unread data in the sound generation / mute queue.
It is determined that the processing of sounding and muting has been completed, and the process returns to the main routine.

On the other hand, if the read pointer RP and the write pointer WP are not equal, there is data that has not been read out in the tone generation / mute queue.
At 42, while advancing the read pointer RP, 6-byte data is read out from the sounding / silence queue, and registers NTMES, NTNUM, VEL, NDLN, and PTI respectively.
Store in M and VWN.

Next, in step S43, it is determined whether the note message NTMES is key-on or key-off. If it is key-on, the sound source circuit 4 is instructed to sound in the process after step S44, and if it is key-off, step S44 is performed.
In the processing from 401, the sound source circuit 4 is instructed to mute.

In step S44, a tone generation channel allocation channel in the tone generator circuit 4 is searched for by the tone generation assignment processing, and the channel number is stored in the register CH. In step S45, the tone number assignment register channel number CH is stored.
In areas corresponding to NTMES, NTNUM, NDL
Parameters of N, PTIM, and VWN are written, and the process proceeds to step S46.

At step S46, NTMES and N
Tone number T obtained by referring to the tone number table in TNUM
Based on N and the wave number VWN, the corresponding delay level and delay pitch are read from the tone color data memory, stored in the registers DLV and DPC, respectively, and the process proceeds to step S47.

In step S47, other corresponding tone color data is read from the tone color data memory by the tone color number TN and the wave number VWN, and DPC is added to the pitch data in this tone color data NDLN times to obtain the value (pitch data + DPC × NDNL) to the CH channel of the tone generator circuit 4, and in step S48, set DLV to N
DLN times are added and the value (VEL + DLV × NDLN) is sent to the CH channel of the tone generator circuit 4.

Then, in step S49, the tone color number TN
And other tone color data read by the wave number VWN are sent to the CH channel of the tone generator circuit 4 to give a sounding instruction, and the process returns to step S41.

On the other hand, in step S401, for each area corresponding to the channel numbers "0" to "15" of the tone generation assignment register, NTMES, NTNUM, NDLN,
The channel number of the area in which the PTIM and VWN data respectively match is searched for, and in step S402, all the data in the area corresponding to the found channel number is set to "0" and a mute instruction is given to the corresponding channel of the tone generator circuit 4. , And returns to step S41.

By the above sounding / silence processing, step S
In the sound generation processing after 44, the pitch of the musical sound to be sounded several times with delay is gradually changed by the delay pitch, and the level is also gradually changed by the delay level.

Further, by the sound deadening processing from step S401, the channel to be muted is muted, and "0" is written in the area corresponding to the muted channel in the sound generation allocation register to make it an empty area.

15 and 16 show the first embodiment.
It is a figure which shows an example of the output musical sound by two series of the series W1 and the 2nd series W2, and FIG.
16 shows the case where the parameters of each series are set as shown in Table 3 below.

[0080]

[Table 2]

[0081]

[Table 3]

In the case of FIG. 15 and Table 2, the first tone of the first series and the second tone of the second series are simultaneously produced by key-on,
In the second sequence, the delay time (d ₂ ) of the third musical tone with respect to the second musical tone is shorter than the delay time (D ₂ ) of the second musical tone with respect to the first musical tone by the delay time change amount “−2”, and the second musical tone is delayed. Is lower than the pitch of the first musical tone by "2", and the pitch of the third musical tone is lower than that of the first musical tone by "4".

In the first sequence, the delay time (D ₁ ) of the second musical tone with respect to the first musical tone and the delay time (d ₂ ) of the third musical tone with respect to the second musical tone are the same, and the pitch of the second musical tone is The pitch of the first musical tone is higher by "2", and the pitch of the third musical tone is higher than that of the first musical tone by "4".

Further, in both sequences, the level of the second musical tone is lower than that of the first musical tone by "5", and the level of the third musical tone is lower than that of the first musical tone by "10".

In the case of FIG. 15, since the delay time D ₂ of the second series is set to be slightly longer than the delay time D ₁ of the first series, the key-on delay in the second tone is caused by the time difference between the two series. The effect of is obtained, the third
In the case of a musical sound, the time difference between the two sequences is different from that in the case of the second musical sound, so that the effect of a key-on delay like a sound effect is further obtained. The pitch of the second and third tones is the first
Since the pitches of the musical tones are different from each other, it is possible to obtain effective musical tones.

In the case of FIG. 16 and Table 3, a plurality of delayed musical tones are not generated in each series, but as shown in the figure, according to this embodiment, only the first series is sounded by key-on, and the second series. From this first series, delay time D
It is pronounced with a delay of ₃ .

The timbre of the second series of musical tones is set to the timbre of the reverberation of the first series of musical tones, and the reverberation of a lower level than the reverberation of the first series of musical tones can be synthesized. It is possible to obtain a musical sound with a high reverberation effect. Also, the first
By making the timbres of the series and the second series similar to each other and reducing the delay time D ₃ , the effect of the conventional key-on delay can be obtained.

Although the musical tone generating device of the above-mentioned embodiment constitutes a rhythm sound source module, the musical tone generating device of the present invention is not limited to this, and the musical tone generating device of the present invention is not limited to the ordinary keyboard type electronic musical instrument, wind instrument type electronic musical instrument, It goes without saying that it can be applied to a stringed instrument type electronic musical instrument or the like.

Further, in the present embodiment, the level, pitch, and time of the delay tone of the second musical tone and below are obtained by cumulatively adding the variation amounts of these parameters, but the present invention is not limited to this. For example, the parameters of the delay sounds of the second musical sound and lower may be individually set.

[0090]

As described above, according to the musical tone generating apparatus of the first aspect, the first musical tone and the second musical tone and the third musical tone sequentially delayed from the first musical tone are generated in response to one sounding instruction. At least three musical tones are generated, the delay time from the first musical tone to the second musical tone and the delay time from the second musical tone to the third musical tone,
Alternatively, a delay time and a pitch are set for the pitches of the second and third musical tones with respect to the first musical tone, and this delay
Since the musical sound is generated based on the delay time and the pitch, it is possible to obtain the effective musical sound by a simple operation. Further, in the musical tone generating apparatus of claim 2, the same 3
The delay time or pitch between two musical notes
Set at least one of delay time and pitch
At the same time, whether or not to generate the first musical tone is set and set.
Based on the information provided, less delay time or less pitch
Generates a musical sound by changing one side and the first musical sound
Since it was controlled whether or not the occurrence of
If you want to generate a musical sound in a series (multiple series),
The sequence produces the first tone, the other sequence produces the first tone
Do not try to synthesize one of the reverberations
Control to synthesize the other tone from the other tone.
And you can get a sound effect sound effect with a simple operation.
Wear.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the relationship between generated musical tones and parameters in an embodiment of the present invention.

FIG. 2 is a block diagram of a musical tone generating apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram showing a part of a panel surface in an example.

FIG. 4 is a diagram showing a tone color data memory in the embodiment.

FIG. 5 is a diagram showing a tone color number table in the embodiment.

FIG. 6 is a diagram showing a delay buffer in the embodiment.

FIG. 7 is a diagram showing a pronunciation / silence cue in the embodiment.

FIG. 8 is a diagram showing a pronunciation assignment register in the embodiment.

FIG. 9 is a flowchart of a main routine in the embodiment.

FIG. 10 is a flowchart of a panel process in the embodiment.

FIG. 11 is a part of a flowchart of MIDI signal reception processing in the embodiment.

FIG. 12 is another part of the flowchart of the MIDI signal receiving process in the embodiment.

FIG. 13 is a flowchart of timer interrupt processing in the embodiment.

FIG. 14 is a flow chart of sound generation / mute processing in the embodiment.

FIG. 15 is a diagram showing an example of generated musical tones in the embodiment.

FIG. 16 is a diagram showing another example of the generated musical sound in the embodiment.

[Explanation of symbols]

1 ... CPU, 2 ... MIDI terminal, 4 ... Sound source circuit, 5R,
5L: sound system, 8 ... LCD, 9 ... panel switch.

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Claims (2)

(57) [Claims] 1. A musical tone generating device for generating at least three musical tones of a first musical tone and a second musical tone and a third musical tone, which are sequentially delayed from the first musical tone, in response to one pronunciation instruction. The delay time from the musical tone to the second musical tone and the delay time from the second musical tone to the third musical tone, or the second time with respect to the first musical tone.
For tone and third tone pitch, the delay time and
A tone information setting means capable of setting a pitch is provided, and the delay time and the pitch set by the tone information setting means are set.
A musical tone generating device characterized in that musical tone is generated based on . 2. The first musical tone and the
Of the second and third tones sequentially delayed from the first tones of
A tone generation device for generating at least three tones, comprising: a delay time from a first tone to a second tone;
Delay time up to 3 tones or second to 1st tone
For the pitch of the tones and the third tone,
Or setting at least one of the pitches
To the tone information setting for setting whether or not the first tone is generated
Means for setting the delay based on the information set by the tone information setting means.
Musical sound with different delay time and / or pitch
Control the presence or absence of the first musical sound
A musical tone generator characterized in that