JP2526066Y2 - Performance information display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a performance information display device that visually displays performance information of a model performance and a manual performance.

[Prior Art] In a conventional electronic keyboard instrument, a function mode called, for example, a guide performance mode is set, and in the guide performance mode, a chord part and a bass part of a musical piece are automatically set. Let them play. The melody part is automatically played and the LED provided corresponding to the operation key is lit, or only the LED is lit without performing the automatic performance. Therefore, a typical operation procedure of the melody part is visually displayed by the LED, and the key depression operation is performed according to the LED, so that the melody part of the music can be easily played.

[Problem to be Solved by the Invention] However, in such a conventional electronic musical instrument, since the operation procedure is only visually indicated by the LED, an exemplary performance and key pressing automatically performed are performed. There is no other way than to judge audibly whether or not the user's own manual performance by the operation actually matches. At this time, even if the melody part is being played automatically,
It is difficult to discriminate between the musical sound of the automatic performance and the musical sound of the manual performance by the user, and when the melody part is not automatically performed, the exemplary performance by the automatic performance and the manual performance by the self. It is not even possible to compare aurally.

For this reason, when the pitch of the automatic performance and the pitch of the manual performance do not match, an electronic musical instrument that causes the player to perceive the mismatch of the pitch by stopping the automatic performance has also appeared. . However, when the pitches do not match, the device for stopping the automatic performance can only recognize that the manual performance has an error in the pitch. However, it was not possible to recognize the degree of difference between the key and the key pressing strength and the presence / absence of the slur, and a sufficient performance practice effect was not obtained.

An object of the present invention is to provide a performance information display device that enhances the performance practice effect by enabling a player to more specifically recognize the difference between a model performance and his own manual performance.

[Means for Solving the Problem] In order to solve the above-mentioned problem, in the present invention, a storage means for storing performance information of a model performance, and the performance information read from the storage means are visually stored. First converting means for converting the performance information into manual displayable information, second converting means for converting the performance information of the manual performance given in response to the operation of the operating element into visually displayable information, Display means for displaying, on the same display surface, the performance information of the model performance and the performance information of the manual performance in association with each other based on the information converted by the conversion means and the second conversion means. It has.

In particular, the first conversion means and the second conversion means convert velocity data included in the performance information of the model performance and the manual performance into coordinate data, and the display means performs a conversion based on the coordinate data. The velocity of the model performance and the manual performance is displayed in a graph, or the presence or absence of a slur is analyzed based on the duration data, and the analysis result is converted into coordinate data. , The slurs of the model performance and the manual performance are graphically displayed.

Preferably, further provided is a position designating means for designating a position of a music piece represented by the performance information stored in the storage means, and the display means is configured to play the model performance from the position designated by the designating means. The performance information and the performance information of the manual performance corresponding to the model performance are displayed.

[Operation] In the above configuration, the performance information of the model performance and the performance information of the manual performance are converted into visually recognizable information by the first conversion means and the second conversion means, respectively, and the display means Is displayed. In the display means, the performance information of the model performance and the performance information of the manual performance are displayed correspondingly on the same display surface, and thus, by visually recognizing the display surface, the performance information of the model performance and the manual performance are displayed. The differences are grasped specifically.

At this time, the difference between the model performance and the manual performance in each element is recognized by graphically displaying the velocity of the model performance and the manual performance and the presence or absence of the slur on the display surface of the display means.

When the position of the music piece is specified by the position specifying means, the display means displays the performance information of the model performance and the corresponding performance information of the manual performance from the specified position.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. That is, FIG. 1 shows the overall circuit configuration of the present embodiment, in which a CPU 20 stores a program stored in an internal ROM 21, music data stored in a RAM 22, and an external ROM 23.
Based on the performance information and the like of the model performance stored in the storage device, processings necessary for sounding instructions and coordinate data conversion and display, which will be described later, are executed. The external ROM 23 stores performance information of the model performance. The performance information of the model performance is composed of performance information after the chord part, the bass part, the rhythm part, and the melody part, and the performance information of the melody part is shown in FIG.
The performance information of the melody part relating to the model performance includes pitch data, pitch data, and velocity data stored from addresses “0000” to “FFFF” for each beat.

The RAM 22 is provided with a format shown in FIG. 2B for storing performance information of a melody part relating to a manual performance performed by a player of the electronic musical instrument. This format is the same format as the melody part performance information in the ROM 23.

On the other hand, as shown in FIG. 3, the switch unit 24 includes a power switch 26 and a demo switch
27, display switch 28, Rec 29, numeric keypad 30, set switch 31, up display switching key 32, down display switching key 33, etc., together with a keyboard switch which is turned on by operating a keyboard 34 comprising a plurality of operators, or Various switches, such as a volume switch, necessary for playing the electronic musical instrument are provided.

Further, the display unit 35 has LEs disposed near each of the power switch 26, the display switch 28, and the set switch 31.
D36, 37, and 38, a performance information display section 39 composed of an LCD, a designated data display section 40 composed of LEDs, and a current bar display section 41 are provided. The performance information display section 39 has a display surface capable of displaying data corresponding to four measures of music, that is, 16 beats in four beats.
Is composed of a designated element display area 42 and a designated bar display area 43.

By operating the up display switching key 32 or the down display switching key 33 in the element designation area 42, the types of performance information elements such as pitch, pitch, velocity, and slur are selectively displayed. You. In the designated bar display area 43, a designated bar number is displayed by operating the numeric keypad 30, and in the current bar display section 41,
The bar number currently played in the automatic performance described later is displayed. Then, one of the elements of the performance information is displayed in the element designation area 42 and the designated measure area 43
When the set switch 31 is turned on in a state where the specified bar number is displayed, the element and the specified bar number are set.

On the other hand, the tone signal generator 44 forms a tone waveform signal based on the processing required for the automatic performance and the manual performance performed by the CPU 20, and the tone waveform signal is an amplifier (not shown). The sound is emitted to the outside through a sound system 45 including a speaker and the like.

In the present embodiment according to the above configuration, when displaying the performance information of the model performance stored in advance in the ROM 23 and the performance information of the manual performance stored in the RAM 22,
After turning on the power switch 26, the performer operates the up and down display switching keys 32 and 33 as described above, so that "pitch", "pitch", "velocity",
One of the elements “presence / absence of slur” is displayed in the designated element display area 42. Next, the ten key 30 is operated to display a desired bar number in the specified bar display area 43. Then, the set switch 31 is displayed in a state where the element and the bar number of any performance information are displayed in the respective areas 42 and 43.
Is turned on, the element is selected and a bar number is set.

In this state, assuming that the processing flow shown in FIG. 4 is started with the turning on of the power switch 26, the state of the switch unit 24 is monitored at regular time intervals (step A7). It is determined whether or not the demo switch 27 has been turned on (step A1). If the determination is YES, an automatic performance process is executed (step A2). In this automatic performance processing, the CPU 20 measures the elapsed time of one beat with a timer, increments the address of the ROM 23 for each elapsed time of one beat, and increases the address of each part of the chord part, the base part, the rhythm part, and the melody part. The performance information is read, and a sounding instruction is performed based on the performance information of each part. Therefore, RO
The first measure is automatically performed according to the performance information at addresses 0 to 3 of M23, and the second measure is performed according to the performance information at addresses 4 to 7. For example, the automatic performance is performed one measure every four beats. Progress one by one.

Next, it is determined whether or not the display switch 28 has been turned on to select the display mode (step A3). If this determination is NO, the current bar display section 41 stores the address corresponding to the address of the ROM 23. The number of measures is displayed (step A6),
The determination process from step A1 is executed again. Therefore, when the display switch 28 is not turned on and only the demo switch 27 is turned on, the automatic performance and the display of the current bar in the automatic performance are performed.

On the other hand, if the determination in step A3 is YES, the display mode is selected, and the display mode is set in advance by operating the up / down display switching keys 32 and 33, the numeric keypad 30, and the set switch 31 as described above. The selected element and bar number are imported (step A4), and the execution of the display process is started (step A5).

In this display processing, a display based on the performance information of the melody part among the parts constituting the musical tone is performed.

As shown in the flowchart of FIG. 5, first, in step B1, it is determined whether or not the current measure is within four measures from the measure of the designated measure number, that is, the designated measure. While this determination is YES and the time is within four bars from the designated bar, various display processes from step B2 are executed. That is, first, the specified elements are “pitch”, “pitch”,
It is determined which of “velocity” and “presence / absence of slur” (step B2).

If the result of this determination is “pitch”, as shown in FIG. 6, the vertical axis with the scale set on the plus side and the minus side in semitone units around “0”, and the scale in one beat units Is set, and a pitch screen frame including a horizontal axis having a length of 16 beats (for four measures) is displayed (step B3). Next, ROM2
The pitch data read out for each elapsed time of 3 to 1 beat is converted into coordinate data (step B4), and plotting and drawing are performed based on the coordinate data to execute a line graph display (step B4). B5). As a result, a straight line graph along the horizontal axis is displayed on the level “0” as shown by the solid line in FIG.

That is, regarding the graph display of the model performance of the melody part stored in the ROM 23, a straight line is displayed on the level "0" on the pitch screen frame regardless of the pitch.

If the result of the determination in step B2 is “sound length”, the vertical axis on which time is set as shown in FIG.
A scale screen with a scale set for each beat and a horizontal axis having a length of 16 beats is displayed (step B).
6). Next, the tone length data read from the ROM 23 for each elapsed time of one beat is converted into coordinate data (step B7),
A bar graph display is executed based on the coordinate data (step B8). As a result, as shown by the black bar graph in FIG. 7, the sound length at each beat is displayed by the length of the bar graph for each beat.

If the result of the determination in step B2 is "velocity", the vertical axis on which the velocity level is set as shown in FIG.
A velocity screen frame consisting of a horizontal axis having the length of a beat is displayed (step B9). Next, the velocity data read out from the ROM 23 for each elapsed time of one beat is converted into coordinate data (step B10), and plotting and drawing are performed based on the coordinate data, whereby a line graph display is executed. (Step B11).
As a result, a line graph of 16 beats (4 bars) is displayed, as shown by the solid line in FIG.

Further, assuming that the determination result of step B2 is “presence / absence of slur”, as shown in FIG. 9, “Demo” which is a band indicating the presence / absence of slur of the model performance and “management” of the manual performance performed by the performer A slur screen frame including a vertical axis on which “You”, which is a band indicating the presence or absence of a slur, is displayed, and a horizontal axis having a scale set for one beat and having a length of 16 beats are displayed (step B12). . Then, a plot is made in advance at one beat interval on the levels of "Demo" and "You". Next, the presence / absence of a slur is analyzed based on the sound duration data read out from the ROM 23 for each elapsed time of one beat (step B1).
3). In other words, it can be analyzed that a slur is present if the successively read note length data has temporal continuity, and a staccato if there is no temporal continuity. Therefore, when it is analyzed as a slur, a draw is made between plots of each beat applied to the band of "Demo" (step B14).

That is, when the automatic performance is performed by specifying the element and the bar number in this manner, the specified element is displayed in a graph with respect to the bars from the specified bar number to the fourth bar.

Then, without re-operating the numeric keypad 30, the up / down display switching keys 32, 33, the set switch 31, etc., the demo switch 27 is turned off and the Rec switch 2 is turned on.
Turn 9 on. Then, the determination in step A1 of the processing flow is NO, and a key scan is performed, and a sound is produced in accordance with the pitch, length, and velocity of the operator operated by the manual performance (step A7). Further, since the Rec switch 29 has been turned on in advance, the determination in step A8 is YES. Thereby, the second
In accordance with the format shown in FIG. 2B, the pitch, length, and velocity of a manual performance performed by pressing the keyboard 34 are recorded in the RAM 22 (step A9).

At this time, in the RAM 22, every time one beat elapses,
The address is incremented, and the pitch, pitch, and velocity of one beat are recorded for each address. Therefore, in the case where the above-mentioned automatic performance music is manually played, the model performance data stored at each address of the ROM 23 and the manual performance data stored at each address of the RAM 22 are counted every beat. (For each address), and thus also for each bar.

Then, in the next step A10, as described with reference to FIG. 5, within four measures from the specified measure (step B1), a graph display of any one of pitch, duration, velocity, and presence or absence of slur starts. (Step B2).
Here, since the element and the specified number of measures specified when the automatic performance is performed are not changed as described above,
The performance information of the manual performance at the same element and the same number of bars as the elements and bars displayed during the automatic performance is read out from the RAM 22 and displayed.

That is, assuming that the designated element is "pitch", a pitch screen frame is displayed with the pitch of the model performance displayed as a solid line as shown in FIG. 6 (step B3). Next, the RAM 2 corresponding to the bar number specified in advance
The pitch data read from the address 2 is converted into coordinate data (step B4), and plotting and drawing are performed based on the coordinate data to execute a line graph display (step B5). As a result, a line graph indicating the pitch of the manual performance is formed as shown by the dotted line in FIG.

That is, regarding the graph display of the pitch of the manual performance, the pitch of the model performance is set as a reference pitch, and how much the pitch of the manual performance is different from the reference pitch in semitone units is represented by coordinate data. After conversion, plotting is performed for each beat based on the coordinate data, a draw is performed to display a polygonal line. Therefore, the performer compares the graph shown by the solid line and the graph shown by the dotted line with the pitch of his own manual performance within four measures from the specified measure. The difference from the pitch of the model performance can be visually recognized.

Therefore, it is possible to specifically evaluate the pitch of the user's own manual performance in relation to the model performance, thereby improving the performance practice effect. Moreover, the performance information display section 39 displays the pitch of the manual performance corresponding to the model performance from the measure specified in advance by the player in a graph. By performing the manual performance after that, it is possible to concretely grasp whether or not the bar at which the player is not good enough can be played, thereby further improving the practice effect.

On the other hand, assuming that the element designated in advance is "duration", the pitch duration frame is displayed with the duration of the model performance displayed in black and a bar graph as shown in FIG. (Step B6). Next, the pitch data of the manual performance read from the address of the RAM 22 corresponding to the previously specified measure number is converted into coordinate data (step B7).
A bar graph display is executed based on the coordinate data (step B8). As a result, as shown by the dotted bar graph in the figure, for each beat, the pitch of the manual performance at each beat is displayed by the length of the bar graph. Accordingly, the player compares the duration of the model performance shown by the black bar graph with the duration of his own manual performance shown by the dotted bar graph, and thereby, within the four bars from the designated bar. It is possible to visually determine the difference between the length of the self-manual performance and the length of the model performance.

Assuming that the element designated in advance is "velocity", a velocity screen frame is displayed with the velocity of the model performance indicated by a solid line as shown in FIG. 8 (step B9). ). Next, the velocity data of the manual performance is read out from the address of the RAM 22 corresponding to the bar number designated in advance and converted into coordinate data (step B10). After plotting based on the coordinate data, the draw is executed. As a result, a line graph is displayed (step B11). As a result, a line graph for 16 beats, in which plots for each beat are connected by dotted lines, is displayed as shown in FIG.

Therefore, the performer compares the velocity of the model performance with his own manual performance shown by the dotted line graph by comparing the velocity of the model performance shown by the solid line graph with the velocity of his own manual performance shown by the dotted line graph. It is possible to visually determine the velocity of the performance, that is, the difference in the key pressing speed.

Further, assuming that the determination result of step B2 is “presence / absence of slur”, as shown in FIG. 9, the band of “Demo” indicates the presence / absence of the slur of the model performance, and the band of “You” indicates 1 A slur screen frame is displayed with only plots attached at beat intervals (step B12). Next, from the address of the RAM 22 corresponding to the bar number specified in advance, 1
The presence or absence of a slur is analyzed based on the duration data of the manual performance read for each elapsed time of the beat (step B13). If the slur is analyzed, each beat applied to the band of “You” is analyzed. Is drawn between the plots (step B1
Four). Therefore, the performer compares the position of the draw shown in the area of "Demo" with the position of the draw shown in the area of "You" to determine the position of the slur of his own manual performance and the position of the slur of the model performance. Can be visually determined.

Moreover, the pitch, length, velocity, and presence / absence of slur of the model performance and the self-manual performance are displayed on the same display screen in the same performance information display unit 39, so that the comparison between the two can be clearly performed. It is possible to strictly evaluate one's own performance and enhance the self-study effect.

If the keyboard 34 is depressed without turning on the demo switch 27 and the Rec switch 29, the loop of steps A1, A7, and A8 is repeated in the processing flow, and only the sound generated by the key depression operation is output. Done.

[Effects of the Invention] As described above, the present invention is displayed because the velocity of the model performance and the performance of the manual performance and each element of the presence or absence of the slur correspond to each other on the same display surface and are graph-displayed. The difference between the two performances in each element can be clearly grasped from the graph, and it is possible to more specifically evaluate one's performance skills.

In addition, since the bar display of both performances can be specified and the graph display can be performed, the model performance and the manual performance are displayed from the bar specified by the player in advance, so that only the above-mentioned weak elements are displayed. Instead, the performance in the bar at which the user is not good is displayed, thereby enabling efficient performance practice.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall circuit configuration of one embodiment of the present invention. FIG. 2 (A) is a conceptual diagram of music data stored in a ROM, and FIG. 2 (B) is a RAM. FIG. 3 is a conceptual diagram of the stored music data, FIG. 3 is an external plan view of the electronic musical instrument according to the embodiment, FIG. 4 is a processing flow of the embodiment, and FIG. 5 is a flowchart showing details of display processing. FIG. 6 is an explanatory view showing a state in which the pitch is graphically displayed on the performance information display section of the embodiment, and FIG. 7 is an explanatory view showing a state in which the pitch is graphically displayed on the performance information display section in the embodiment. FIG. 8 is an explanatory view showing a state in which the velocity is graphically displayed on the performance information display section of the embodiment, and FIG. 9 is an explanatory view showing a state in which the presence or absence of the slur is graphically displayed on the performance information display section of the embodiment. FIG. 20 ... CPU, 22 ... RAM, 23 ... ROM, 27 ... Demo switch, 28 ... Display switch, 29 ... Rek switch, 30 ...
Numeric keys, 32: Up display switching key, 33: Down display switching key, 34: Keyboard, 39: Performance information display section, 40: Designated data display section, 43: Designated element display area, 43 ... Designated bar display area.

Claims (3)

(57) [Scope of request for utility model registration] A storage means for storing performance information of a model performance; a first conversion means for converting velocity data included in the performance information read from the storage means into coordinate data; A second converting means for converting velocity data included in performance information of a manual performance given in response to the operation of the second converting means into coordinate data; and the second converting means and the second converting means Display means for displaying a graph of the velocity of the model performance and the velocity of the manual performance on the same display surface in association with each other on the basis of each coordinate data. 2. A storage means in which performance information of a model performance is stored, and the presence or absence of a slur is analyzed based on the duration data included in the performance information read from the storage means. First converting means for converting to coordinate data, and analyzing presence / absence of a slur based on pitch data included in performance information of a manual performance given in response to operation of an operator, and converting the analysis result into coordinate data. Second converting means for converting; and, based on the coordinate data converted by the second converting means and the second converting means, the model performance slur and the manual performance slur are associated with each other. And a display means for displaying a graph on the same display surface. 3. The apparatus according to claim 1, further comprising: a position designating means for designating a position of a musical piece represented by the performance information stored in said storage means, wherein said display means displays said model performance from a position designated by said position designating means. 3. The performance information display device according to claim 1, wherein the performance information and the performance information of a manual performance corresponding to the model performance are displayed.