JP3087725B2 - 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 dividing a predetermined range into a plurality of ranges and assigning waveform samples to predetermined pitches in the divided ranges.

[0002]

2. Description of the Related Art Conventionally, a plurality of waveform samples are prepared in a waveform memory, and the plurality of waveform samples are set in a partial range of a whole range which can be instructed by a performance operator such as a keyboard. 2. Description of the Related Art There is known an electronic musical instrument configured to selectively read a waveform sample assigned to a partial range to which a pitch indicated by a keyboard or the like belongs to generate a musical tone when sound is generated.

In such a conventional electronic musical instrument, a plurality of partial ranges are set in the whole range. In this case, the lowest scale (lower limit LL) and the highest scale (upper limit) of the partial range are set. UL: Upper Limit) and waveform specification information for specifying a waveform sample used for sound generation in the partial range are individually set for each partial range. Also, the pitch of the sounding waveform sample, that is, the reading speed, is the same as the original pitch of the recorded waveform sample (Original note ON: Original N).
ote) and a standard pitch difference of each scale in the partial range using the waveform sample, and the scale shift amount and the like are individually set and adjusted for each partial range.

[0004]

However, in the above-mentioned conventional electronic musical instrument, a plurality of partial ranges are respectively set in the whole range by manual operation, and each of the set partial ranges is designated one by one. Had to be assigned, which was very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and aims to improve the operability by setting the boundary of each partial range one by one or reducing the trouble of assigning a waveform sample to each partial range. It is an object of the present invention to provide an electronic musical instrument capable of performing the following.

[0006]

In order to achieve the above object, the present invention comprises a first storage means for storing a plurality of waveform samples, and an upper limit pitch and a lower limit pitch of a plurality of partial ranges within a predetermined range. Second storage means for storing allocation data consisting of data representing the waveform samples allocated to each partial range, and a predetermined number of waveform samples selected from a plurality of waveform samples stored in the first storage means Selecting means for performing, pitching means for generating pitch information specifying a pitch within the predetermined range, instruction means for instructing automatic assignment, and when the automatic assignment is instructed, The predetermined number of partial ranges are set, and the predetermined number of waveform samples selected by the selection unit are respectively assigned to the partial ranges, and the upper limit pitch and the lower limit pitch of each of the partial ranges are assigned. Allocating means for storing data indicating a waveform sample as the allocated data in the second storage means; and when the pitch information is generated by the performance means, the allocating means stores the data stored in the second storage means. Based on the allocation data, a partial range to which the pitch information belongs is detected, a waveform sample assigned to the detected partial range is detected, and the waveform sample is selectively read from the first storage unit. a generating means for generating a musical tone based on the read waveform samples, said first serial
For a plurality of waveform samples stored in memory,
Setting procedure to set upper and lower limit values when allocating
And the assigning means comprises an upper limit of each partial range.
The pitch and lower pitch are assigned to each partial range.
Upper and lower limits set for each waveform data
The respective portions within the predetermined range so as to be within the range of
It is characterized in that a range is set .

[0007]

[0008]

According to the configuration of the first aspect of the present invention, when the automatic assignment is instructed by the instruction means, a predetermined number of partial ranges are set within the predetermined range, and the predetermined range selected by the selection means is selected. A number of waveform samples are respectively assigned to the partial ranges, and data indicating the upper limit pitch and the lower limit pitch of each partial range and the assigned waveform samples are stored in the second storage means. When the pitch information is generated by the playing means, the partial range to which the pitch information belongs is detected based on the allocation data stored in the second storage means, and the detected partial range is detected. A waveform sample assigned to the partial range is detected, the detected waveform sample is selectively read from the first storage means, and a tone is generated based on the read waveform sample. In addition, the upper limit pitch and the lower
Waveform data for which the pitch limit is assigned to the partial range
Within the upper and lower limits set for
Thus, the setting of each partial range within the predetermined range is performed.
Will be

[0009]

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

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

Referring to FIG. 1, an electronic musical instrument according to the present embodiment includes a panel operator 1 for giving instructions for sampling a musical tone, editing a sampled waveform sample, and inputting various information. A display 2 for displaying various kinds of input information, waveform samples, and the like; a CPU 3 for controlling the entire apparatus; and an RO for storing a control program executed by the CPU 3 and table data to be referred to.
M4, a RAM 5 for temporarily storing the calculation result of the CPU 3, various information from the panel operator 1, etc., a waveform input unit 6 for sampling a musical tone according to an instruction of the panel operator 1, a sampled musical tone An access control unit 7 for accessing a waveform RAM 11 for storing a waveform to write or read a sampling waveform, a waveform reading unit 8 for instructing the access control unit 7 on a waveform sample to be read, a waveform sample, A disk for storing information (sample data), various timbre parameters (voice data), etc. related to each waveform sample, or reading out these stored various data, various stored data, and the like is driven. MIDI (Musical Instrument) output from the disk drive 9 and an external electronic musical instrument
nt Digital Interface) signal (code)
MIDI that outputs MIDI signals to external electronic musical instruments, etc.
DI interface (I / O) 10 and waveform reading section 8
A tone generator that generates a tone signal by assigning a tone to the tone channel and assigns various tone parameters to the tone channel, and a speaker that converts the tone signal generated by the tone generator into sound. Each component 1 to 10 is connected to each other via a bus 13.

The waveform input unit 6 includes a microphone 1 for converting a musical tone into an electric signal in order to sample the musical tone.
4, the output side of the waveform input unit 6 is connected to the input side of the access control unit 7, and the access control unit 7
The output side of the waveform reading section 8 is connected to the input side of the sound system 12.

There are various types of disks driven by the disk drive 9, such as a hard disk, a floppy disk, a CD-ROM, and a magneto-optical disk. For convenience of explanation, the disk will be described below as a magnetic disk. .

FIG. 2 is a configuration diagram showing a detailed configuration of the panel operator 1. In FIG.
Is composed of a function switch group 21 to which various functions are assigned, and other switch groups 22.

The function switch group 21 includes a post recording (PR) automatic switch 21 ₁ , a note shift (NS) note interlocking switch 21 ₂ , a note shift (NS) enable switch 21 ₃ , and an automatic arrangement switch 21 _4. , A fully automatic A switch 21 ₅ , a fully automatic B switch 21 ₆ , a fully automatic C switch 21 ₇ , a fully automatic D switch 21 ₈ , and a sequential automatic switch 219 ₉ .
It is composed of various types of function switches.
Hereinafter will be described the functions performed respectively by pressing the respective function switches 21 ₁ to 21 _9.

[0017] The post-recording (PR) automatic switch 21 _1, in time to sample the new waveform sample, automatically the waveform sample, the center notes to be allocated within the specified range, which by the user (ACN: Asign
Center Note: a switch for instructing whether or not to execute a so-called post-recording (PR) automatic process.

As described above, when assigning a waveform sample by designating the center note (ACN) to be assigned in a certain range, the pitch of the assigned center note is sampled instead of the pitch of the assigned center note when the assigned center note is played. The pitch unique to the musical tone, that is, the original note (ON: Or
iginal Note), and at this time, it is necessary to shift the note from the assign center note to the original note so that a tone is generated in the original note. Note shift (NS) interlock switch 21
_When the assign center note is set by a process of setting an assign center note (ACN) (ACN setting event process of FIG. 11 described later), the note is automatically shifted to the original note in conjunction with the setting. A switch for instructing whether or not to set the amount. Note that the note shift amount can be independently set (not interlocked) without being set interlockedly.

Note shift (NS) effective switch 21 ₃
Enable the set note shift amount so that the tone is pronounced in the original note, or
This switch is used to simply shift the pitch of a musical tone by a set amount to give a change to the musical tone. On the other hand, the switch 21 _3, disable the notebook shift amount,
It is also possible to instruct a musical tone to be generated at a pitch corresponding to a note to be played.

[0020] Automatic Arrangement switch 21 ₄ is mapped already to tone (voice) mapped the sample waveform, automatically a predetermined pitch of the keyboard to designated sample waveform by the voice based on the original note (voice) This is a switch for instructing so-called automatic arrangement processing to be performed again.

The fully automatic A switch 21 ₅ is a switch for performing fully automatic A processing for automatically mapping waveform samples based on an original note, and the fully automatic B switch 21 ₆ is based on an assign center note. automatically a switch for fully automatic treatment B that maps the waveform samples, fully automatic C switch 21 _7,
Equally divided by the waveform sample number to be mapped to all registers, a switch for fully automatic C process that automatically maps the waveform samples in the divided range, fully automatic D switch 21 ₈ is predetermined Key (for example, C
From 1), the range is divided every n keys, and a waveform sample is automatically mapped to the divided range.
This is a switch that performs processing.

Furthermore, sequential automatic switch 21 ₉ is a switch for sequentially performing the automatic processing automatically map, specifying one assignment center note for the specified waveform sample.

When the cursor is displayed on the display 2 shown in FIG. 1, the other switches 22 move the cursor upward (UPW), downward (DWNW), and right (RW).
W), or a cursor switch 22 ₁ to move in either direction in the left direction (LW), the numerical data such as various parameters, a ten key 22 ₂ for changing enter a direct numerical, the enter to confirm the input information inputted by the ten key 22 _2, etc. (eNTER) key 22 _3, data setting dial 22 to change the data such as parameters which the cursor is positioned continuously ₄
And the data of the parameter etc. where the cursor is located
Increment / decrement by increment (IN
C) / deck and (DEC) switch 22 _5, 22 _6, is constituted by the exit (EXIT) switch 22 ₇ to stop the processing of the mapping such as the waveform samples.

FIG. 3 shows the RAM 5 and the waveform R shown in FIG.
FIG. 3A is a diagram showing a memory map of AM11, and FIG.
3 shows a memory map of the RAM 5, and FIG. 3B shows a memory map of the waveform RAM 11.

In the RAM 5, as shown in FIG.
Sample data SD1 to SD, which are information on waveform samples stored on a magnetic disk or waveform RAM 11
4. Voice data V, which is information on timbre (voice)
D1, VD2, and other data other than these data are stored.

FIG. 2 also shows the data formats of the sample data SD2 and the voice data VD2, but the other sample data SDn (n ≠ 2) and the voice data VDn (n ≠ 2) are the same. Data format.

The sample data SD2 includes an area SNAME for storing a sample name (in this embodiment, each waveform sample is managed by a sample name).
An area for storing a storage position (address) in the magnetic disk including a path name and a drive name to which the magnetic disk is allocated, in which a waveform sample indicated by D2 (hereinafter, referred to as “waveform sample SD2”) is stored as a file. PATH, an area TYPE for storing a data type for distinguishing what kind of attribute (type) the data SD2 is (ie, sample data, voice data or other data), and a waveform sample SD
An area MPOS indicating the position on the waveform RAM 11 where the second wave WD2 is stored, an area WSIZE for storing the storage capacity of the wave WD2, and a start address area for storing a read position (address) when the wave WD2 is first read. SA, a loop start address area LSA for storing a first position (address) of a portion to be repeatedly read in the wave WD2, a loop end address area LEA for storing a last position (address) of a portion to be repeatedly read, and It is composed of other data areas for storing other data (etc.). In addition,
The sample data SDn (n = 1, 2,...) Is configured so that the corresponding wave data WDn always exists in the waveform memory 11. This is because, as described later, when generating the sample data, the sampling process of the wave data WDn of the waveform sample is also performed at the same time.

On the other hand, the voice data VD2 includes an area VNAME for storing a voice name, a position on the magnetic disk where the voice indicated by the voice data VD2 (hereinafter, referred to as "voice VD2") is stored as a file, and a location on the magnetic disk. An area PATH for storing a drive name, an area TYPE for storing a data type for distinguishing the attribute of the data VD2, maximum and minimum note numbers of the plurality of partial ranges, and a waveform sample assigned to the partial range. A multi-sample data area MSD for storing data to be designated, the sound system 1
EG data area E for storing various parameter values to be sent to an envelope generator (EG) not shown in FIG.
GD, a filter data area FCD for storing various parameter values for filtering the tone signal generated by the tone generator, and an effector for applying various effects to the tone signal by an effector (not shown) in the sound system 12. And an other data area for storing other data (etc.) for storing various parameter values to be transmitted to the ECD.

As shown in FIG. 3B, the waveform RAM 11 reads the wave data of the waveform sample sampled through the waveform input unit 6 and reads out the waveform data from the magnetic disk via the disk drive 9. Wave data WD1 to WD5 of the sampled waveforms are stored in the order of sampling or reading, and other data are stored therebelow.

The CPU of the electronic musical instrument configured as described above
3 will be described below with reference to the flowcharts of FIGS.

FIG. 4 is a flowchart showing the procedure of the main routine. In FIG. 4, first, initial settings such as clearing of the RAM 5 and clearing of various ports are performed (step S1).

Next, a MIDI process for performing a process in accordance with a MIDI signal transmitted from an electronic musical instrument connected to the outside of the electronic musical instrument of the present embodiment is performed (step S2). After performing panel processing for performing various settings (step S3), the process returns to step S2, and the above-described processing is repeated.

Also, when an operation by the post-recording (PR) automatic switch 21 ₁ , the note shift (NS) interlocking switch 21 ₂ , or the note shift (NS) enable switch 21 ₃ is detected in the panel processing, it is shown in FIG. No event routine is executed,
PR automatic flag, NS interlock flag, or
An NS valid flag is set in a predetermined area in the RAM 5, and as described later, the CPU 3 performs a corresponding process by detecting these flags.

FIG. 5 is a flow chart showing a procedure of a sampling event process for generating wave data by sampling a musical tone and generating a corresponding waveform sample, which is one of the processes during the panel process in step S3. This sampling event processing is performed using panel operator 1
The processing is started by depressing a sampling switch (not shown).

In the figure, first, a display requesting input of a sample name (including a file position stored in the area PATH) is displayed on the display 2 (step S1).
1) When a sample name is input according to this request, a musical tone is sampled via the microphone 14 and the waveform input unit 6, and a sampling process for writing wave data as a sampling result into the waveform RAM 11 is performed (step S12). Here, the sampling processing specifically means that when a tone signal is input via the microphone 14 and the waveform input unit 6 and the rising edge of the tone signal is detected by the CPU 3, the waveform RAM 11 Start writing the tone signal to
This is a process of terminating writing when a previously secured area is filled with a tone signal.

Next, various parameters in the sample data SDn described with reference to FIG. 3A, that is, parameter values such as a start address SA, a loop start address LSA, and a loop end address LEA are set (step S13). ). At this time, each address SA, LSA,
When the corresponding wave data of the waveform sample is displayed on the display 2, the setting of the LEA may be performed while viewing the wave data. It may be performed while reproducing (monitoring) the wave data based on the address. Further, when a musical tone is sampled, the pitch unique to the musical tone, that is, the original note (ON)
Exists, the original note is also set in this step S13. Here, the setting of the original note may be such that the pitch corresponding to the detected fundamental frequency is automatically set using a known technique such as analyzing the fundamental frequency of the sampled tone signal. .

Next, an area VN for storing the voice name secured in the RAM 5 (hereinafter referred to as "voice VN").
), A voice name to which the waveform sample (new sample) selected in advance is to be assigned is stored (step S).
14) Later, the post-recording (PR) shown in FIG.
Whether the automatic switch 21 ₁ has been pressed or not,
It is determined whether or not the R automatic flag is set (step S15), and when it is not set (PR automatic flag =
In 0), this sampling event processing ends, while
When it is set (PR automatic flag = 1), the user inputs a desired assignment center note in accordance with the input request for the assignment center note, and the input value is stored in an area ACN secured in the RAM 5 (hereinafter, referred to as “ACN”). The content is stored in “assignment center note ACN” (step S16), and this assignment center note A is stored.
Based on the CN, the new waveform sample is additionally mapped, and the mapping result, that is, the assignment center note ACN, the maximum and minimum note numbers (UL: Upper Limit; LL: Lower Limi) of each partial range after the assignment.
t) and after the data specifying the waveform sample to be assigned is stored in the multi-sampling data area MSD in the voice data indicated by the voice VN (step S17), the sampling event process ends.

FIGS. 14A and 14B are diagrams for explaining the additional mapping processing in step S17. FIG. 14A shows the waveform sample w1 recorded first and its original note (=
42), (b) shows a waveform sample w1 'after setting an assign center note (= 40) to the waveform sample w1 of (a), and (c) shows a waveform sample w1' of (b). New waveform sample w to be additionally mapped to
2 and its original note (= 50)
(D) shows the waveform samples w1 'and w2' and the original note (= 40, 47) after additionally mapping the waveform sample w2 of (c). In the figure,
The note number of MIDI is scaled on the scale described at the top, and in this embodiment, the waveform samples are assigned to any range between 30 and 70 in note number. .

First, for example, the waveform sample w1 shown in FIG.
Are sampled, various parameters are set in step S13. At this time, the upper limit value (AUL: Asign Upper Limit) and the lower limit value (AL
L: Asign Lower Limit) is also set, and the upper limit value and the lower limit value are respectively set in the areas AUL and ALL secured in the RAM 5 (hereinafter, these contents are referred to as “upper limit AUL” and “lower limit ALL”, respectively). Is stored in Here, the upper limit AUL and the lower limit ALL are set when the pitch of the waveform sample is changed (this is performed by changing the reading speed of the waveform sample) if the pitch change width is too large. This is because the generated musical sound waveform is distorted, and it is necessary to limit the distortion.
Thus, original note = 42, lower limit ALL
= 35 and the upper limit AUL = 48 are sampled and stored in the waveform RAM 11.

Next, in step S16, when "40" is input as the assignment center note ACN, the mapping is performed as shown in (b), and the assignment center note and the upper limit value of the mapped partial range (the above assignment value) The maximum note number UL of the subsequent sound range; hereinafter, this is referred to as an upper limit UL) and the lower limit value (the minimum note number LL of the sound range after the assignment; hereinafter, this is referred to as a lower limit LL) is defined by the multi-sample data area MSD. Is stored in

Further, when a new waveform sample, for example, the waveform sample w2 of (c) is sampled, the waveform sample of original note = 50, lower limit ALL = 43, and upper limit AUL = 59 is obtained in the same manner as in the above (a). The wave data of w2 is stored in the waveform RAM 11.

When "47" is input as the assignment center note ACN in step S16, the mapping is performed as shown in FIG. 9D, and the assignment center note = 47 as the waveform sample w2 ', and the mapped portion is obtained. Upper limit UL = 59 and lower limit LL = 4 of the range
4 is stored in the multi-sample data area MSD, and the allocation state of the waveform sample w1 'in (c) is changed by additional mapping of the waveform sample w2' (that is, the upper limit UL is changed from "48" to "43"). ), The value stored in the multi-sample data area MSD of the waveform sample w1 'is updated and stored.

FIG. 6 is a flowchart showing a procedure of a new voice creation event process for newly creating voice data, which is one of the processes during the panel process in step S3. This new voice creation event process is performed using panel operator 1
Is called by pressing a voice creation switch (not shown), and its processing is started.

As shown in FIG.
In the same manner as described above, enter the voice name (step S21)
An area for storing the voice data is secured in the RAM 5 (step S22), a map processing subroutine described later is executed (step S23), and various parameters related to the voice, that is, the EG data area E
After setting parameters to be set in the GD, the filter data area FCD, the effect data area ECD, and other data areas (step S24), the new voice creation event process ends.

By selecting the created voice data as a voice for sound generation, the MIDI interface 1
In accordance with the performance information input from 0, a tone whose tone is controlled based on the voice data is generated.

The voice data can be changed not only when a new voice is created by the present voice creation event process but also for voice data that has already been created by, for example, a voice edit event process (not shown). .

FIG. 7 is a flowchart showing a detailed procedure of the map processing subroutine of the step S23.

In the figure, first, when a desired sample data is designated by a user from a plurality of sample data (not shown) displayed on the display 2, the area SNAME in the designated sample data is designated. Is stored in the area SS secured in the RAM 5
(Hereinafter, the content of this area is referred to as “designated waveform sample SS”) (step S31).

Next, the original note of the designated waveform sample SS is manually set in an area ON secured in the RAM 5 (hereinafter, this content is referred to as "original note ON"), and the upper limit value at the time of assigning the designated waveform sample SS is set. (The upper limit AUL) and the lower limit (the lower limit ALL) for assigning the designated waveform sample SS are manually set (step S32). Here, the configuration in which the original note ON can be manually set is the same as the step S in the sampling event process of FIG.
This is because it may be desired to change the original note ON automatically set in step 13, and for the same reason, the upper limit AUL and the lower limit ALL can be changed.

Next, the assign center note ACN and the note shift amount NS of the designated waveform sample SS are manually set (step S33). Here, the setting of the assign center note ACN is performed in accordance with the operation of the panel operator 1 in the assign center note (AC
N) A process of executing a setting event process to set an assign center note ACN which is a center pitch for assignment. The assignment center note (ACN) is configured so that the note shift amount NS can be set. for you did not NS interlocking process according to NS interlock switch 21 ₂ in the set event processing (step S73), when the note shift NS is not set, or set note shift NS later, also notes Shift amount NS
Is set, the value of the note shift amount NS may need to be changed.

Next, the upper limit value (UL: Upper Limit) and the lower limit value (L:
L: Lower Limit) is manually set, and
Areas UL and LL secured in RAM 5 (these contents are hereinafter referred to as “upper limit UL” and “lower limit LL”, respectively)
(Step S34). Here, the configuration that the upper limit UL and the lower limit LL can be set is based on an automatic mapping process (to be described later) of the present map process (step S36).
Therefore, there are cases where manual mapping is desired without automatic mapping, and cases where fine adjustment is desired after automatic mapping, and the like, in order to deal with these cases.

Further, designation of addition or cancellation of a mark indicating whether or not the designated waveform sample SS is included in the target of automatic mapping is performed (step S35). The designation of the mark in the step S35 is switched between the designation of addition or cancellation each time a mark switch (not shown) is pressed.
Operability is improved by performing so-called toggle.

Next, when an operation is performed in response to the operation of various automatic mapping switches, an automatic mapping processing subroutine for performing automatic mapping based on the set values set so far is executed (step S36), and the mapping is performed. It is determined whether or not has been completed (step S37).

If it is determined in step S37 that the mapping has been completed, this subroutine processing is terminated. On the other hand, if the mapping has not been completed, the flow returns to step S31 to repeat the above processing.

[0055] When you want to exit the map processing by pressing the exit (EXIT) switch 22 ₇ of FIG. 2, it is determined completed in step S37 may terminate this map processing.

[0056] The automatic mapping processing electronic musical instrument of this embodiment is carried out, as described above, in correspondence to the function switch 21 _{5-21 9} of FIG. 2, fully automatic to D,
There are five types of automatic mapping processing of automatic sequential. Less than,
Each of these automatic mapping processes will be specifically described.

FIG. 8 is a flowchart showing the procedure of the automatic mapping processing subroutine of fully automatic A and fully automatic B. As described above, the fully automatic A mapping process performs mapping based on the original note ON, whereas the fully automatic B mapping process differs only in that mapping is performed based on the assign center note ACN. In the flowchart, the fully automatic A mapping process is mainly described. In FIG. 12, the fully automatic B mapping process can be performed by using the assignment center note ASN in parentheses instead of the original note ON in step S42.

First, the first marked waveform sample is designated (selected) (step S41), and the designated waveform sample is assigned to the voice V based on the original note ON.
It is assigned to N multi-sample data areas MSD (step S42). Specifically, data to be stored in the multi-sample data area MSD, that is, the maximum and minimum note numbers (the upper limit UL and the lower limit LL) of each allocated partial range, and the waveform samples allocated to the partial range Are determined and stored in the area MSD.

Next, it is determined whether or not there is another marked waveform sample (step S43). If any marked waveform sample remains, the waveform sample is designated (step S44), and the process returns to step S42. The above processing is repeated, and if no marked waveform sample remains, this subroutine processing is terminated.

FIG. 15 is a diagram for explaining the automatic mapping processing of fully automatic A and fully automatic B.
The waveform samples w1 and w2 already mapped before the additional mapping are shown, (b) shows the waveform sample w3 to be added, and (c) shows the mapping when the additional mapping is performed by the automatic mapping process of fully automatic A The result is shown, and (d) shows the mapping result when additional mapping is performed by the automatic mapping process of fully automatic B.

As shown in (a), waveform sample w1
Is assigned to original note ON = 42, assign center note ACN = 40, upper limit UL = 48, lower limit LL = 35, and waveform sample w2 is original note ON = 60, assign center note ACN = 57, upper limit UL = 68. , LL = 52.
Further, the additional waveform sample w3 is, as shown in FIG.
This sample uses original note ON = 50, assign center note ACN = 47, upper limit AUL = 59, and lower limit ALL = 43 as parameter values.

When these waveform samples w1 to w3 are mapped by the automatic mapping process of fully automatic A, each of the waveform samples w1 to w3 is mapped as shown in FIG. . That is, for example, the boundary between the musical range to which the waveform sample w1 is mapped and the musical range to which the waveform sample w2 is mapped is determined to be a midpoint between ONs of the original notes. Specifically, the boundary between the waveform sample w1 and the waveform sample w2 is “45” on the waveform sample w1 side.
And the waveform sample w2 side is determined to be “46”. At this time, since the number of note numbers between the original note ONs (the number of keys referred to on the keyboard) is an odd number (7), there is no strictly middle point, that is, it cannot be bisected. In such a case, the number of waveform samples mapped in a higher pitch (in this embodiment, the waveform sample w2) is increased by one. The present invention is not limited to this, and the number of waveform samples mapped at a lower pitch may be increased by one.

On the other hand, the waveform samples w1 to w3 are
, The waveform samples w1 to w3 are respectively mapped as shown in (d) with each assignment center note ACN as the center. The specific mapping method is the same as the automatic mapping of the fully automatic A described above, and a description thereof will be omitted.

FIG. 9 is a flowchart showing the procedure of an automatic mapping processing subroutine of fully automatic C and fully automatic D. As described above, the full-automatic C mapping process divides the entire sound range evenly by the number of marked waveform samples and then performs mapping, whereas the full-automatic D mapping process uses a predetermined key (for example, “C1”). ) To k keys (the value k is specified by another routine (not shown)), and the only difference is that mapping is performed after the division. Therefore, in the flowchart of FIG. ing.

First, the entire range of the voice VN is divided into partial ranges corresponding to the number of marked waveform samples (step S5).
1). At this time, in the fully automatic C mapping, the entire range is equally divided into the number of marked waveform samples, while in the fully automatic D mapping, a predetermined key is divided into k keys at a time.

The subsequent processing in steps S52 to S55 is the same as the processing in steps S41 to S44, respectively, and a description thereof will be omitted.

FIG. 16 is a diagram for explaining the automatic mapping process of fully automatic C, and FIG. 17 is a diagram for explaining the automatic mapping process of fully automatic D.

In FIG. 16, (a) to (c) show the results when 1 to 3 waveform samples are automatically mapped, respectively. In (a), the waveform sample w1 has a note number of 36 ( = C1) to 96 (= C6) are mapped to the entire range having a range of, and in (b), the waveform samples w1 and w2 are respectively mapped to ranges halving the entire range, and in (c), the waveform samples are Samples w1 to w3
Are mapped to a sound range obtained by dividing the entire sound range into three equal parts. Here, the original pitch of the waveform sample is
It is set at the midpoint of each range. Therefore, a musical tone in which only the pitch of the waveform sample is changed to be higher or lower as the position is shifted right or left in the drawing from the position of the original pitch.

In FIG. 17, (a) shows the result when the waveform samples are automatically mapped every k = 1,
(B) shows the result when the waveform sample is automatically mapped every k = 2, and (c) shows the result when the waveform sample is automatically mapped every k = white key. Here, in the automatic mapping result of (b), the waveform samples are assigned so as to be sounded at the same pitch every two keys, but the present invention is not limited to this, and the pitches may be mutually changed.

FIG. 10 is a flowchart showing a detailed procedure of the sequential automatic mapping processing subroutine.

First, the first marked waveform sample is designated (step S61), and the above-mentioned step S1 of FIG.
The assigning center note ACN of the designated waveform sample is set by the same method as in step 6 (step S62), and the designated waveform sample is assigned to the assigning center note ACN.
Is newly assigned to the multi-sample designation parameter MSD of the voice VN based on (step S63).

The subsequent processes in steps S64 and S65 are the same as the processes in steps S43 and S44, respectively, and a description thereof will be omitted.

FIG. 11 shows an assignment center note (AC
N) is a flowchart showing a procedure of a setting event process. This subroutine is called by detecting that an assign center note setting switch (not shown) is pressed in the other ACN setting process in step S33 of FIG. Is started.

In the figure, the input value is written to the assigned center note ACN of the designated waveform sample (step S71), and the note shift (NS) shown in FIG.
Whether interlocked by the interlocking switch 21 ₂ is indicated, i.e., is set in accordance with the switch 21 ₂ NS
The value of the linkage flag is determined (step S72), and when instructed (NS linkage flag = 1), the original note O
After the assignment center note ACN written in step S71 is subtracted from N and stored in the area NS (step S73), the assignment center note ACN setting event process ends, and when no interlock is instructed ( The process ends without doing anything to the NS interlock flag = 0).

FIG. 12 is a diagram showing the MI of step S2 in FIG.
It is a flowchart which shows the procedure of MIDI note-on signal reception event processing in a DI processing subroutine. This event process is called when a note-on code is input from the MIDII / O10 of FIG. 1, and the process is started.

In the figure, first, an input note-on code is analyzed to detect a note number, and data indicating voice data designated corresponding to the note number is stored in the area VN. The note number is also stored in the area nn secured in the RAM 5 (hereinafter, this content is referred to as “note number nn”) (step S8).
1) A tone is assigned to the sound system 12 based on the data VN, nn (step S8).
2).

Next, a tone generation waveform corresponding to the partial range including the note number nn is detected from the multisample designation parameter MSD of the voice VN (step S83).
The sound channel (ch) assigned in step S82
Next, data of a waveform sample corresponding to the sound generation waveform detected in step S83 is set, and preparations are made so as to be read from the waveform RAM 11 via the waveform reading unit 8 in FIG. 1 (step S84).

Next, the the notes shift (NS) enable switch 21 ₃ is pressed, note the shift is valid or whether, i.e., to determine whether the NS valid flag is set (step S85), the effective When (NS flag = 1)
After updating the note number nn by adding the note shift amount NS to the note number nn (step S86),
Proceed to step S87. On the other hand, if the note shift is not valid in the determination in step S85 (NS flag = 0)
Skips step S86 and proceeds to step S87.

In step S87, other sound generation control data corresponding to the note number nn of the voice data specified by the voice VN is set in the channel to which the sound is allocated. In step S88, note-on is performed on the sound generation channel. After issuing a signal and issuing an instruction to generate a musical tone, the present event processing ends.

[0080] Figure 13 is a flowchart showing the procedure of automatic arrange event processing for performing automatic arrangement process described above, the event processing is called when the user presses the automatic arrangement switches 21 ₄ of FIG 2, the process Be started.

In the figure, a voice to be automatically arranged is designated and stored in the area VN (step S91).
From the multi-sample data area MSD of the voice VN, the waveform sample assigned to the area MSD is marked (step S92), and the fully automatic A event processing subroutine of FIG. 8 is called (step S9).
3) After performing the full automatic A mapping, the present process is terminated.

As described above, according to the present embodiment,
Since the configuration is such that the waveform samples are automatically mapped, it is possible to reduce the time and effort required for mapping for each partial range and improve operability.

[0083]

As described above, according to the present invention,
When the automatic assignment is instructed by the instruction means, a predetermined number of partial ranges are set within a predetermined range, and the predetermined number of waveform samples selected by the selection means are respectively assigned to the partial ranges, and together with data indicating the waveform samples allotted the frequency range of the upper limit pitch and the lower limit pitch is stored in the second storage means, each said portion
The upper and lower pitches of the range are divided into the partial range.
The upper limit value and the
And within the range of the lower limit.
Serial since the setting of each part range is performed, to reduce the trouble of assigning the waveform samples for each partial range, in addition to making it possible to improve the operability, the waveform sample pitch
When changing the pitch, the change range is the upper limit of the partial range.
Value and the lower limit, which allows playback
The effect of suppressing waveform distortion of musical sounds
To play.

[0084]

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram showing a detailed configuration of a panel operator of FIG. 1;

FIG. 3 is a diagram showing a memory map of a RAM and a waveform RAM of FIG. 1;

FIG. 4 is a flowchart illustrating a procedure of a main routine executed by a CPU of the electronic musical instrument according to the embodiment.

5 is a flowchart showing a procedure of a sampling event process for generating a waveform sample by sampling a tone signal, which is one process during the panel process of step S3 in FIG. 4. FIG.

FIG. 6 is a flowchart showing a procedure of a new voice creation event process for newly creating voice data, which is one process during the panel process of step S3 in FIG. 4;

FIG. 7 is a flowchart showing a detailed procedure of a map processing subroutine of step S23 in FIG. 6;

FIG. 8 is a flowchart showing a procedure of an automatic mapping processing subroutine of fully automatic A and fully automatic B.

FIG. 9 is a flowchart showing a procedure of an automatic mapping processing subroutine of fully automatic C and fully automatic D.

FIG. 10 is a flowchart showing a detailed procedure of a sequential automatic mapping processing subroutine.

FIG. 11 is a flowchart showing a procedure of an assignment center note ACN setting event process.

FIG. 12 is a flowchart showing a procedure of a MIDI note-on reception event process in a MIDI process subroutine of step S2 in FIG. 4;

FIG. 13 is a flowchart illustrating a procedure of an automatic arrangement event process.

FIG. 14 is a diagram for explaining an additional mapping process in step S17 of FIG. 5;

FIG. 15 is a diagram for explaining automatic mapping processing of fully automatic A and fully automatic B in FIG. 8;

FIG. 16 is a diagram for explaining automatic mapping processing of fully automatic C in FIG. 9;

FIG. 17 is a diagram for explaining an automatic mapping process of fully automatic D in FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Panel operator (selection means, instruction means, designation means, setting means) 3 CPU (assignment means, generation means) 10 MIDI interface (performance means) 11 Waveform RAM (first storage means, second storage means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10H 1/18

Claims (1)

(57) [Claims] A first storage unit for storing a plurality of waveform samples; and an upper limit pitch and a lower limit pitch of a plurality of partial ranges within a predetermined range, and data indicating waveform samples assigned to the respective partial ranges. Second storage means for storing allocation data consisting of: a selection means for selecting a predetermined number of waveform samples from a plurality of waveform samples stored in the first storage means; and designation of a pitch in the predetermined range. Performing means for generating pitch information to be performed, instructing means for instructing automatic allocation, and when the automatic allocation is instructed, setting the predetermined number of partial ranges in the predetermined range and selecting the selecting means Is assigned to each of the partial ranges, and data indicating the upper limit pitch and the lower limit pitch of each of the partial ranges and the assigned waveform samples are assigned to the allocation data. Assigning means for storing the pitch information in the second storage means, and when pitch information is generated by the performance means, based on the assignment data stored in the second storage means, Detect the partial range to which it belongs,
Generating means for detecting a waveform sample assigned to the detected partial range, selectively reading the waveform sample from the first storage means, and generating a musical tone based on the read waveform sample ; A plurality of waveform samples stored in the first storage means;
The upper and lower limits for the assignment.
Setting means for setting the upper limit pitch and lower pitch of each of the partial ranges.
The pitch limit is determined by the waveform data assigned to each subrange.
Within the upper and lower limits set for the
Setting of each of the partial ranges within the predetermined range.
An electronic musical instrument characterized by performing .