JP3324131B2 - 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 in which a player can set various musical tone parameters such as tone parameters, and more particularly, to musical tones having formants such as human vowels and natural musical instrument sounds. The present invention relates to an electronic musical instrument having a formant sound source for synthesizing a signal, wherein a musical tone parameter of the formant sound source can be arbitrarily set by a player.

[0002]

2. Description of the Related Art In a conventional electronic musical instrument using a formant sound source, when a player sets tone parameters, a plurality of formants of the formant sound source (see FIG. 10: four formants a to d in the example of FIG. 10). Many are configured so that tone color parameters such as formant frequency, level, or bandwidth (-3 dB bandwidth) can be set for each one of the above.

In such an electronic musical instrument, the amplitude spectra of formants a to d shown in FIG. 10 and a table as shown in FIG.
There is a configuration in which the timbre parameters of each of the formants a to d are changed using an operator while referring to the first table, and there is an advantage that the timbre parameters are easy to understand visually and the operability is good. Here, both the level and the bandwidth of the table shown in FIG. 11 are relative values.

Since the above-mentioned formant sound sources are configured based on the frequencies of the formants a to d, the formants a to d are numbered in order of the lowest frequency (formant No.) as shown in FIG. Is generally attached. In the examples of FIGS. 10 and 11, the formant a is the formant No. 1, Formant b is formant No. 2. Formant c is formant No. 3. Formant d is formant No. 4.

[0005] Here, for example, the performer determines that the formants a to c of the amplitude spectra of the formants a to d shown in FIG. When setting the formant e and trying to change it to the new amplitude spectrum of the formants a to c and e as shown in FIG. 12, the performer uses the operator while referring to the table shown in FIG. As shown in FIG. The formant frequency of the formant d may be changed from 5500 Hz to 3400 Hz, and the level may be changed from 60 to 98.

[0006]

In the above-mentioned conventional electronic musical instrument, the formant No. In the display of the table in FIG. 13, the formant No. 3 is formant No. 3. 4 is displayed, and the formant No. 4 is displayed. Formant c to be 4
Is formant No. It is displayed at 3
The player has the disadvantage that it is difficult to understand visually.
In particular, if the displays of FIGS. 12 and 13 are displayed next to each other on the same display, the player will be confused. The present invention has been made under such a background, and it is an object of the present invention to provide an electronic musical instrument that is easy to visually understand when setting musical tone parameters and that is easy to operate.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 has a display means for displaying a plurality of musical tone parameters; Parameter setting means for setting tone parameters; and parameter arrangement for rearranging the plurality of parameters in accordance with a predetermined rule based on the set values of the plurality of tone parameters in response to the setting by the parameter setting means. An electronic musical instrument comprising: a switching unit; and a control unit that displays, on the display unit, a plurality of tone parameters rearranged by the parameter rearranging unit. Also, the invention according to claim 2 is a display means for displaying a plurality of tone parameters, a parameter setting means for setting the plurality of tone parameters, and a plurality of tone parameters set by the parameter setting means. Control means for visualizing and displaying the corresponding tone characteristics on the display means based on the numerical values of the plurality of tone parameters, and displaying the plurality of tone parameters on the display means , based on the plurality of tone parameters;
An electronic musical instrument characterized by comprising a plurality of sort parameters rearrangement means a musical tone parameter set by said parameter setting means in the order corresponding to the tone characteristics that appear visualized respectively Te.

[0008]

According to the above arrangement, when the performer sets the musical tone parameters using the parameter setting means, the parameter rearranging means rearranges the set musical tone parameters in accordance with a predetermined rule. The musical tone parameters are displayed on the display means.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic musical instrument according to a first embodiment of the present invention. In this figure, reference numeral 1 denotes a CPU (Central Processing Unit) for controlling each section of the apparatus;
Reference numeral 2 denotes a ROM in which a control program and various data used in the CPU 1 are stored. Reference numeral 3 denotes a RAM, in which various registers and flags used when the CPU 1 performs various processes are secured, and a formant tone color parameter area 3 in which a formant frequency, a level, and a bandwidth, which are tone parameters, are stored for each formant. _a is secured.

[0010] An example of the formant tone color parameter area 3 _a configuration in FIG. In this embodiment, a formant synthesized sound source 19 described later generates tone signals of four formants A to D. Formant tone color parameter area 3 _a is composed of various areas, each area a predetermined data length (for example, 8 bits)
Having. Also, formant tone parameter area 3
_a pointer area 3 _a1 address area 3 _{a11 to} 3 _a14
, The addresses of the first to fourth formants are sequentially stored. That is, address area 3
Formants No. _a11 to _a14 have formant Nos. in ascending order of formant frequency. Each tone color parameter for the four formants were given the respective top address A1~D1 of the data area 3 _a2 to 3 _a5 stored is adapted to be stored. In the example of FIG. 2, the formant frequency is CF <
Since DF <AF <BF is lower, the address area 3
_a11 to ~3 _{a 14,} the start address each of C1, D1,
A1 and B1 are stored in this order.

In the data areas 3 _{a2 to} 3 _a5 , tone color parameters of formants A to D, that is, formant frequencies AF to DF, levels AL to DL, and bandwidths AB to DB are stored for each formant. Has become. In FIG. 2, A2 to D2 and A
3 to D3 are levels AL to DL and bandwidths AB to D
Data area 3 _{a2 to} 3 _a5 in which each of B is stored
Is the start address in

In FIG. 1, reference numeral 4 denotes a keyboard composed of a plurality of keys. When a key is operated, key information corresponding to the key is transmitted to a CPU via a keyboard interface 5.
Feed to 1. Reference numeral 6 denotes a panel, an example of which is shown in FIG. In FIG. 3, reference numeral 7 denotes a display such as a liquid crystal display, and FIG. 4 shows an example of the display. In this embodiment, as described above, since the number of formants is four, the display 7 displays the amplitude spectrum of the four formants at the top, and the tone color of these four formants at the bottom. The parameters formant frequency, level and bandwidth are formant N
o. It is configured to be displayed every time.

In FIG. 3, reference numeral 8 denotes a screen changeover switch for switching a screen displayed on the display 7, such as a formant edit screen for setting a formant timbre parameter and an amplitude envelope edit screen for setting each parameter of an amplitude envelope. Is switched by the screen changeover switch 8. Reference numeral 9 denotes a cursor key for moving a cursor on the screen displayed on the display 7, and 10 denotes a cursor key for increasing the value of data displayed at the cursor position on the screen displayed on the display 7 by one. An increment switch 11 sets the value of the data displayed at the cursor position on the screen displayed on the display 7 to 1
A decrement switch 12 for decreasing the value is a data slider for greatly changing the value of the data displayed at the cursor position on the screen displayed on the display 7.

Reference numeral 13 denotes a play (PL) for performing a normal performance.
AY) switch 14 is used to edit (E)
Edit switch to switch to DIT) mode, 1
Reference numeral 5 denotes a timbre selection switch for selecting a preset timbre (10 types in this example), and 16 denotes an enter (ENT) used for determining the value of data changed by the increment switch 10 or the like.
An ER switch 17 is a sort (SORT) switch for instructing data rearrangement (sort). The data value can be directly input by the timbre selection switch 15.

In FIG. 1, reference numeral 18 denotes a panel interface for supplying operation information corresponding to each switch output from the panel 6 to the CPU 1;
A formant synthesized sound source 20 controlled by the PU 1 to output a musical sound signal, and a sound system 20 including an amplifier, a speaker, and the like, which receives a musical sound signal output from the formant synthetic sound source 19 and generates a musical sound. For the detailed configuration of the formant synthesized sound source 19, refer to the official gazette of the formant sound generator proposed by the present applicant (JP-A-2-254497).

In such a configuration, the processing of the CPU 1 will be described with reference to the flowcharts of FIGS. When power is applied to the electronic musical instrument of FIG.
First, the process proceeds to the processing of step SA1 of the main routine in FIG. 5 to initialize each unit of the apparatus. This initialization includes setting an initial tone color for the formant synthesized sound source 19, clearing various registers of the RAM 3, and the like.
Then, the CPU 1 proceeds to step SA2.

In step SA2, a panel process which is performed when one of the switches on the panel 6 is operated is performed. In this panel processing, various data settings, mode changes, and the like are performed based on the operation information supplied from the panel 6 via the panel interface 18. Note that, of the panel processing, the processing in the edit mode (edit processing) will be described later in detail. Then, when this panel process ends, the CPU 1 proceeds to step SA3. In step SA3, a keyboard process that is performed when any key of the keyboard 4 is pressed or released. In this keyboard processing, the formant synthesized sound source 19 is driven based on the key information supplied from the keyboard 4 via the keyboard interface 5. As a result, the formant synthesized sound source 19 outputs a tone signal, and the sound system 20 generates a tone based on the tone signal.
Then, when this keyboard processing ends, the CPU 1 proceeds to step SA4. In step SA4, other processes are executed. After the completion of such processes, the process returns to step SA2 described above, and returns to steps SA2 to SA2 until the power is turned off.
A series of processing of SA4 is repeatedly executed.

Next, the edit processing in the panel processing of the CPU 1 will be described with reference to the flowchart of FIG. The processing of the CPU 1 proceeds to the panel processing of step SA2 in FIG. 5. In this panel processing, when the performer presses the edit switch 14 (see FIG. 3) of the panel 6, the mode is shifted to the edit mode, and the editing processing shown in FIG. The routine is invoked. Note that the edit processing routine is always started in the edit mode every time the panel processing is executed. First, the CPU 1 proceeds to the process of step SB1, and selects the cursor key 9 shown in FIG.
Is determined, that is, whether the player has operated the cursor key 9 or not. If the result of this determination is "YES", the flow proceeds to step SB2.

At step SB2, a cursor movement process for moving the cursor on the screen (for example, FIG. 4) displayed on the display 7 of FIG. 3 up, down, left and right in accordance with the operation of the cursor key 9 by the player is performed. After that, the process proceeds to Step SB3. When the result of the determination in step SB1 is "NO", that is, when there is no event of the cursor key 9, the process proceeds to step SB3.

In step SB3, it is determined whether or not the event of the increment switch 10, the decrement switch 11, or the data slider 12 shown in FIG. 3 has occurred, that is, whether the player has performed the increment switch 10, the decrement switch 11, or the It is determined whether the data slider 12 has been operated. If the result of this determination is "YES", the flow proceeds to step SB4. In step SB4, whether to increase (inc) the value of the tone color parameters in the formant tone color parameter area 3 _a of RAM3 the tone color parameters are stored which are displayed at the cursor position on the screen displayed on the display 7 Alternatively, after the value is decreased (dec) and the value of the timbre parameter displayed at the cursor position on the screen displayed on the display 7 is simultaneously changed, the process proceeds to step SB5.

In step SB5, the tone parameters are created based on the values of the tone parameters of each formant including the tone parameter values of the formants changed in the processing of step SB4 (for example, the tone parameters of each tone parameter are expressed by a predetermined quadratic curve equation). After the amplitude spectra of the four new formants created by substituting the values are graphically displayed on the display 7, the process proceeds to step SB6. When the determination result of step SB3 is "NO", that is, the increment switch 10, the decrement switch 11, and the
Alternatively, even when there is no event of the data slider 12, the process proceeds to step SB6.

At step SB6, it is determined whether or not the event of the enter switch 16 shown in FIG. 3 has occurred, that is, whether or not the player has operated the enter switch 16. If the result of this determination is "NO", nothing is done,
Returning to the main routine of FIG. 5, the process proceeds to step SA3.
On the other hand, if the result of the determination in step SB6 is "YES", that is, if there is an event of the enter switch 16, the process proceeds to step SB7.

In step SB7, a sort process for rearranging data is performed. FIG. 7 shows a routine of this processing. In this routine, in step SC1, among the formant frequency AF~DF four formants, find the lowest formant frequencies, the head of the data area of the formant tone color parameter area 3 _a of RAM3 that the formant frequencies are stored after writing the address (either a1 to D1), the address area 3 _a11 pointer area 3 _a1 formant tone color parameter area 3 in _a as the start address of the first formant, the process proceeds to step SC2.

[0024] At step SC2, among the formant frequency of the remaining three formants, find the lowest formant frequencies, the head address of the data area in the formant tone color parameter area 3 of RAM3 the formant frequency is stored _a after writing the pointer area 3 _a1 address area 3 _a12 formant tone color parameter area 3 in _a as the start address of the second formant, the process proceeds to step SC3.

[0025] At step SC3, among the formant frequency of the remaining two formants, lower head address of the data area of the formant frequencies found, within the formant tone color parameter area 3 of RAM3 the formant frequency is stored _a the after a written formant tone color parameter area 3 pointer area 3 _a1 address area 3 _a13 in _a as the head address of the third formant, the process proceeds to step SC4.

At step SC4, the RAM 3 storing the formant frequency of the last remaining formant is stored.
Of the head address of the data area of the formant tone color parameter area 3 in _a, after writing in the fourth pointer area 3 _a1 address area 3 of the formant formant tone color parameter area 3 in _a as the start address of the _a14, the process proceeds to step SC5. In step SC5, FIG.
As shown in FIG. 6, after displaying the sorted tone parameters of the first to fourth formants at the lower part of the display 7, FIG.
After returning to the main routine of FIG. 5 through the edit processing routine, the process proceeds to step SA3.

Next, a second embodiment of the present invention will be described. The configuration other than the formant timbre parameter area of the RAM 3 is the same as that of the first embodiment described above. While sorting the address data in the pointer area 3 _{a first} formant tone color parameter area 3 _a in the first embodiment, in this embodiment, as shown in FIG. 8 (a), the first to fourth formant each tone color parameter to be sorted together tone color parameters of the formant tone color parameter area 3 _b newly provided formants comprising data area 3 _b1 to 3 _b4 stored in ascending order of the formant frequencies. In the example of FIG. 8A, since the formant frequencies are lower in the order of AF <BF <CF <DF, the tone areas parameters are stored in the data areas 3 _{b1 to} 3 _b4 in the order of formants A, B, C, and D, respectively. Have been. Accordingly, the pointer area 3 _a1 becomes unnecessary, instead, newly provided in RAM3 work data area 3 _c which temporarily stores each tone color parameter of each formant (not shown).

In such a configuration, the operation of the CPU 1 other than the sorting process is the same as that of the first embodiment described above, and the description thereof will be omitted. Next, a sorting process for rearranging data will be described with reference to a flowchart of FIG. When the CPU 1 proceeds to the processing of step SB7 in FIG. 6, the sort processing routine shown in FIG. 9 is started. CPU1, first, the process proceeds to step SD1, after copying each tone color parameter of the first to fourth formant of FIG. 8 (a) to not shown the work data area 3 _c of RAM 3, the process proceeds to step SD2.

In step SD2, each formant A to
Formant tone in ascending order by comparing each formant frequency AF~DF the D parameter area 3 _b first to fourth
After copying to the data areas 3 _{b1 to} 3 _b4 of the formants, the process proceeds to step SD3. For example,
If the formant frequency is lower in the order of CF <DF <AF <BF, the data is sorted in this order and copied to the data areas 3 _{b1 to} 3 _b4 of the formant tone parameter area 3 _b as shown in FIG. 8B. . Step SD3
Then, after displaying the sorted tone parameters of the first to fourth formants at the lower part of the display 7, the process returns to the main routine of FIG. 5 through the edit processing routine of FIG.
Proceed to step SA3.

As described above, according to the first and second embodiments described above, in the electronic musical instrument having the formant synthesized sound source 19, when setting the timbre parameters for each formant, the display 7 displays each formant. The formant timbre parameters are displayed in a list along with the amplitude spectrum, and the formant timbre parameters are automatically rearranged in an arbitrary order, so that the player can easily visually understand and easily set each timbre parameter.

In the above-described embodiment, the position of the cursor when the tone color parameters are sorted and the display on the display 7 is changed is not particularly described.
When the display position of the timbre parameter moves, the cursor also moves at the same time, so that the performer can grasp what the timbre parameter has just been changed, and it becomes easy to edit.

Also, in the above-described embodiment, an example has been described in which the player presses the enter switch 16 to determine the changed timbre parameters, and also sorts the timbre parameters and changes the display. As shown in FIG. 3, a sort switch 17 is provided, and only the changed tone color parameter is determined when the player presses the enter switch 16, and the performer presses the sort switch 17 to sort the tone color parameter. And the display may be changed. In this case, instead of providing only one sort switch 17, a plurality of sort switches 17 may be provided for each tone color parameter, and sorting may be performed for each tone color parameter that is easy for the player to see, for example, for formant level and band width. .

Further, in the above-described embodiment, RA
Although an example of sorting after rewriting the formant tone color parameter area 3 stored contents of _a and 3 _b of M3, may be sorted them when displaying tone color parameter. Alternatively, the order of the tone color parameters may be constantly monitored, and the performer may change the tone color parameters and sort them when the order is changed.

In addition, in the above-described embodiment, the example in which the formant frequencies are sorted in ascending order is described. However, the sorting may be performed in ascending order of the formant frequencies. Also,
The instruction of the sort by the player may use not only the enter switch 16 and the sort switch 17 described above but also a pedal or other means. Further, in the above-described embodiment, an example is shown in which sorting is performed when a preset parameter is edited. However, sorting may be performed when setting all parameters. Here, some embodiments of the present invention will be described as follows. 2. The electronic musical instrument according to claim 1, further comprising: (a) a formant sound source for synthesizing a tone signal having a formant, wherein the tone parameter is a tone color parameter of the formant. 2. The electronic musical instrument according to claim 1, wherein the display unit displays both the numerical value of the musical tone parameter and a graphic representing a characteristic corresponding to the numerical value of the musical tone parameter.

[0035]

As described above, according to the present invention, even when the setting of the musical tone parameter is changed, it is easy to visually understand, and the setting state of the parameter can be intuitively known.
Has an effect. In addition, there is an effect that operability is good.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic musical instrument according to first and second embodiments of the present invention.

FIG. 2 is a diagram showing an example of a configuration of _a formant timbre parameter area 3a of a RAM 3.

FIG. 3 is a diagram showing an example of a configuration of a panel 6.

FIG. 4 is a diagram showing an example of a display on a display device 7;

FIG. 5 is a flowchart illustrating a process of a main routine of a CPU 1;

FIG. 6 is a flowchart showing the processing of an edit processing routine of CPU1.

FIG. 7 is a flowchart illustrating a process of a sorting process routine of the CPU 1;

FIG. 8 shows an R of an electronic musical instrument according to a second embodiment of the present invention.
It is a diagram illustrating an example of the formant tone color parameter area 3 _b of the configuration of AM3.

FIG. 9 is a flowchart illustrating a sort processing routine of a CPU 1 according to a second embodiment of the present invention.

FIG. 10 is a diagram showing an example of a formant amplitude spectrum.

11 is a table showing an example of tone color parameters of formants a to d shown in FIG.

FIG. 12 is a diagram illustrating an example of a formant amplitude spectrum.

FIG. 13 shows formants a to c and e shown in FIG.
3 is a table showing an example of a tone color parameter of FIG.

[Explanation of symbols]

1 ... CPU, 2 ... ROM, 3 ... RAM, _3a , _3b
... formant tone parameter area, _3a1 ... pointer area, _3a11 to _3a14 ... address area, _3a2 to
3 _a5 , 3 _{b1 to} 3 _b4 ... data area, 3 _c ... work data area, 4 ... keyboard, 5 ... keyboard interface, 6 ... panel, 7 ... display, 8 ... screen switch, 9 ... Cursor key, 10 ... Increment switch, 11 ... Decrement switch, 12 ... Data slider, 13 ... Play switch, 14 ... Edit switch, 15 ... Tone selection switch, 16 ...
Enter switch, 17 ... Sort switch, 18 ...
Panel interface, 19: Formant synthesized sound source, 20: Sound system.

Claims (2)

(57) [Claims] A display means for displaying a plurality of tone parameters; a parameter setting means for setting the plurality of tone parameters; and a plurality of the plurality of set tone parameters in response to the setting by the parameter setting means. A parameter rearranging unit that rearranges the plurality of parameters according to a predetermined rule based on a value of a musical tone parameter; a control unit that displays the plurality of musical tone parameters rearranged by the parameter rearranging unit on the display unit; An electronic musical instrument comprising: 2. A display means for displaying a plurality of tone parameters; a parameter setting means for setting the plurality of tone parameters; and a tone characteristic corresponding to the plurality of tone parameters set by the parameter setting means. Control means for displaying on the display means based on the numerical values of the plurality of tone parameters and for displaying the plurality of tone parameters on the display means; and the visualization display based on the plurality of tone parameters, respectively. electronic musical instrument characterized by comprising a plurality of parameters rearranging means for rearranging the musical tone parameters set by the parameter setting means in the order corresponding to the tone characteristics, the.