JP4650970B2 - Automatic performance device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic performance device, and more particularly to an automatic performance device that generates musical sounds based on automatic performance data read according to a timing instruction input by a user.
[0002]
[Prior art]
There is known an automatic performance apparatus which stores automatic performance data in a storage means in advance, and reads out the automatic performance data according to the operation timing and generates a musical sound every time an operator such as a keyboard or a pad is operated. ing. In this automatic performance device, for each operation of the operator, that is, for each key depression, the automatic performance data is read and pronounced for each piece of note data (a plurality of note data if a chord or a melody and a chord are included). . The electronic musical instruments disclosed in JP-A-11-102187 and JP-A-2000-99016 have a navigation function for displaying key pressing timing on an operation panel based on automatic performance data. By manipulating the keyboard using this key press timing display as a guide, automatic performance data can be sounded at a unique tempo, so even beginners such as infants can become familiar with playing electronic musical instruments.
[0003]
FIG. 16 is an example of the navigation information displayed on the operation panel, and FIGS. 16A and 16B show the navigation information of the first part of the song and the last part of the song, respectively. In both figures, a round mark filled in black corresponds to one operation. The interval between the round marks corresponds to the length of the sound indicated by each note data. This round mark changes its shape in order from the left as the key is pressed (for example, it changes to a mark of a shape “+”). Thus, the performer can recognize the time interval until the next key pressing timing.
[0004]
[Problems to be solved by the invention]
The automatic performance device having the above navigation function has the following problems. As understood from FIG. 16, in the conventional navigation function, the first part and the last part of the song cannot be distinguished by the navigation information. Therefore, when playing the same song repeatedly, or when moving to another song without leaving an interval, where to end the current performance, where to move to a repeated part or another song There was a problem that it was difficult to recognize whether there was.
[0005]
An object of the present invention is to provide an automatic performance device that can solve the above-mentioned problems and can easily recognize the repetition of the same song or the transition to another song.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the object, the present invention provides an automatic performance apparatus that sequentially reads out and reproduces one or more note data in response to a key depression, and based on the sound generation timing information of the note data. And a display means for displaying a key press timing guidance, and determining whether or not the read note data is at least one of a first part and a last part of the automatic performance data. Discrimination means When, The discriminating means converts the note data into the first part and last part of the automatic performance data. Partial If it is determined that it is at least one, in accordance with the determination, at least one of the guidance display of the first key pressing timing and the last key pressing timing of the performance based on the note data in the guidance display, Is displayed on the display means in a form different from the key press timing guidance. Data correction part This is the first feature.
[0007]
In addition, the present invention has a second feature in that the guidance display is performed with a mark corresponding to each key depression, and means for changing at least one of the shape and the color of the mark is provided in order to express the different form. is there.
[0008]
According to the first or second feature, the guide display indicating the first and last key press timing is clearly distinguished from the other key press timing guide displays due to the difference in shape and color.
[0009]
Further, in the present invention, apart from the display means, at least one of the first key pressing timing and the last key pressing timing based on the note data is displayed with a mark added to the guidance display of the key pressing timing. There is a third feature in this point. According to the third feature, the guidance display indicating the first and last key pressing timings with the mark added to the guidance display is clearly distinguished from the guidance display of the other key pressing timings.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 2 is a block diagram showing a hardware configuration of the electronic piano according to one embodiment of the present invention. In the figure, the CPU 1 is input from an operation unit 91 including a program stored in the ROM 2, key pressing information (pitch, velocity, etc.) input from the keyboard 7, and a plurality of switches and volumes (operators). Based on the timbre, tempo, rhythm and the like, the tone generator 4 as a tone generator is controlled to generate a tone signal. The sound source device 4 includes a plurality of music sound generation channels so that a plurality of music sounds can be generated simultaneously. The tone signal generated from the tone generator 4 is converted into an analog signal by the D / A converter 5 and input to the analog signal processing unit 6. The analog signal processing unit 6 performs signal processing such as applying an effect on the input analog signal. The output of the analog signal processing unit 6 is amplified by the amplifier 8 and then input to the speaker system 21 for sound generation.
[0017]
The keyboard 7 is provided with a sensor for detecting the timing of pressing and releasing the key and the key pressing speed (velocity). The detection information of the sensor is detected by the key scanning circuit 7a and inputted to the CPU 1 as key pressing information. The Further, the operation of the operation unit 91 is detected by the panel scan circuit 91a and is input to the CPU 1 as panel scan information. The RAM 3 is used as a storage area for various parameters such as tempo and volume set by the operation of the operation unit 91 and a work area for the CPU 1.
[0018]
A display 92 is provided to display the processing result in the CPU 1. The display 92 is preferably an LCD (liquid crystal display), but may be a CRT. Hereinafter, the LCD 92 will be described. The operation unit 91 and the LCD 92 are both provided on a control panel (described later) disposed adjacent to the keyboard 7.
[0019]
This electronic piano has an automatic performance mode for generating musical sounds based on previously stored automatic performance data (hereinafter simply referred to as “performance data”). In the automatic performance mode, in response to the player's key pressing operation, the performance data is read one note data (or a plurality of note data if a melody and a chord are included) one by one, and a musical tone is generated based on this. That is, the player's key press instructs the note data read timing and sound intensity, that is, velocity, and a musical tone is produced at a predetermined pitch according to this instruction. However, it is preferable that the key press timing is indicated so that the performance can be performed as close to the original music as possible. In the present embodiment, the navigation means (the player recognizes an appropriate timing for reading the performance data). Details will be described later).
[0020]
The performance data is stored in the ROM 2, supplied from an external storage medium such as a floppy disk device (FDD) or a memory card, and read out to the RAM 3. In the automatic performance mode, the LCD 92 functions as a navigation information display unit which is a main part of the navigation means, and visually guides the key pressing timing. The navigation information is formed by processing image information such as a predetermined mark based on the sound generation timing information included in the performance data. Image information (image data) for forming timing information is stored in the ROM 2 together with performance information, and is also supplied together with performance information from an FDD, a memory card, or the like.
[0021]
FIG. 3 is a diagram illustrating an example of a control panel. An LCD 92 is disposed substantially at the center of the control panel 9, and a plurality of operators constituting the operation unit 91 are disposed on the left and right and below the LCD 92. Among a large number of controls, switches R1 to R5, L1 to L5, and B1 to B7 arranged adjacent to the edge of the LCD 92 display information on areas previously associated with these switches in the LCD 92 display area. It is for operation.
[0022]
Adjacent to the lower left corner of the LCD 92, for example, a music selection switch 10 is provided for selecting one of performance data supplied from the FDD, and a save switch 11 and an exit switch 12 are arranged adjacent to the lower right corner. Is done. The function of the free switch 13 is changed in accordance with an instruction displayed on the LCD 92.
[0023]
A mode selection switch 14 is provided to select one of a plurality of predetermined modes, and the automatic performance mode can be selected with this switch 14. Furthermore, a stop switch 15 for stopping the automatic performance is provided.
[0024]
In addition, a tone color and rhythm switch group 16, a fill-in switch group 17, a variation switch group 18, an increment dial 19, a transpose switch 20, an octave shift switch 22, and the like are provided. The increment dial 19 is used to change various values (parameter values) such as tempo and volume.
[0025]
Next, an example of navigation information displayed on the LCD 92 by the navigation means in the automatic performance mode will be described. The navigation information is a row of marks corresponding to the key pressing operation, and this row of marks is composed of a plurality of marks spaced at intervals corresponding to the time of the key pressing operation. Each mark corresponds to one key pressing operation (simultaneous operation of a plurality of keys in a performance including a chord or a melody and a chord). The shape of the mark changes as the music progresses, that is, every time the performer presses the key (for example, the circular mark is changed to a “+” mark).
[0026]
4 to 9 are diagrams showing the navigation information of the start part and the end part of the performance in one line. First, in the example of FIG. 4, among the marks included in the navigation information, the first and last marks Ms and Me are different in shape from the other marks Mm. In FIG. 4, the marks Ms and Me are both triangular, and are distinguished from the other circles of the mark Mm. In the example of FIG. 5, the mark Ms is a triangle and the mark Me is a quadrangle, which is also distinguished from the other circles of the mark Mm.
[0027]
In the example of FIG. 6, among the marks included in the navigation information, the first and last marks Ms and Me have the same shape as the other marks Mm but are different in color. In this case, the mark Ms and the mark Me may be the same color or different. For example, the mark Ms is blue and the mark Me is red. In order to distinguish the marks by color, the LCD 92 can be displayed in color. For example, if the marks Ms and Me are white and the other marks Mm are black, the black and white display is performed. The LCD can also make the performer recognize the mark difference.
[0028]
In the example of FIG. 7, a mark indicating the start and end of a song is included in the navigation information separately from the mark corresponding to the note. For example, a start line Bs composed of a vertical line such as a bar line is added before the head mark Ms, and a stop line Be composed of two lines is added after the last mark Me. Note that the start line Bs and the end line Be are not limited to vertical lines and double lines, and may be any marks added in front of the mark Ms or adjacent to the mark Me so that they can be distinguished from each other.
[0029]
In the example of FIG. 8, the remaining number of operations of the keyboard for notifying the end of the navigation information corresponding to the performance data is displayed. As shown in the figure, a number N representing the number of remaining operations is displayed on the upper right of the row of marks constituting the navigation information. The remaining operation count N is decremented by one as the performance progresses, that is, every time the keyboard is operated. The display of the number N is not limited to being displayed as a part of the navigation information of the last part of the performance as shown in FIG. 8, but is displayed in the navigation information at what time from the first part to the last part of the performance. Alternatively, it may be displayed when the remaining number of operations N reaches a preset number.
[0030]
In the example of FIG. 9, a progress indicator indicating the progress of performance is displayed to notify the end of the navigation information. As shown in the figure, a bar-shaped display unit DI is provided below the navigation information. On the display unit DI, the color of the area corresponding to the degree of progress of the performance (percentage of the performance end in the entire performance data) changes. Since the length of the display unit DI corresponds to the length of the entire song, if the performance is advanced to half, the color of the display unit DI changes to half of the length. The degree of performance progress can be determined by the number of key presses or the actual number of pronunciations. For note data played simultaneously with chords and left and right hands, a plurality of key presses are counted as one key press.
[0031]
FIG. 9A shows a display at the start of performance, and the entire display unit DI is white. On the other hand, FIG. 9B shows a display immediately before the end of the performance (the operation for four times remains), and the display portion DI has almost all of its length changed to, for example, red (in FIG. 9, black fill). ). With such a display, the performer can easily recognize whether the navigator information is the start part or the end part of the performance.
[0032]
The display unit DI is not limited to a bar-shaped display, and may be displayed in a pie chart, or a dot-shaped display (spot) moves in a direction along the mark row in accordance with the progress of the performance. You may comprise.
[0033]
FIG. 10 shows an example in which navigation information is displayed on a plurality of lines on the LCD 92. As shown in the figure, a blank row BL is provided between the navigation information corresponding to the end portion of the performance data and the navigation information corresponding to the start portion of the performance data at the time of repetition. Thus, by displaying the navigation information in a state where the blank row BL is provided, the boundary between songs can be clarified.
[0034]
FIG. 11 shows an example of display by conventional navigation means that does not provide a blank row BL. When the blank line BL is not provided in this way, it is difficult to distinguish between navigation information corresponding to the end portion of the performance and navigation information corresponding to the start portion of the next performance.
[0035]
FIG. 12 is a flowchart of the navigation process of the electronic piano. This process is started when it is detected by the panel scan circuit 91a that the music selection switch 15 is turned on. In step S1, performance data corresponding to the music selection information detected by the panel scan circuit 91a is loaded from the ROM 2 to the RAM 3. Note that each note data constituting the performance data includes a key number, a step time, a gate time, and a velocity. The key number indicates the pitch, the step time indicates the sound generation timing, the gate time indicates the sound generation duration, and the velocity indicates the key pressing speed, that is, the key pressing strength. When the performance data is loaded into the RAM 3, the contents of the register storing the performance data read address are reset. In step S2, the mark image data constituting the navigation information is loaded from the ROM 2 to the RAM 3.
[0036]
In step S3, step time and gate time, ie, timing information relating to note data of a predetermined amount (for example, one measure (hereinafter referred to as “scheduled amount”) is read from the performance data according to the address of the register. Then, based on the step time and the gate time, a value indicating an interval between marks constituting the navigation information, that is, a key pressing interval is determined, and in step S5, a predetermined amount of notes are determined based on the image data and the interval of the mark. Generate navigation information corresponding to the data.
[0037]
In step S6, it is determined whether or not the predetermined amount of note data is the first part of the performance data. If this determination is affirmative, the process proceeds to step S7, and the image data of the mark corresponding to the first predetermined amount of note data in the navigation information is changed. That is, the image data of the original mark is replaced with the image data of the mark having a different shape. If step S6 is negative, the process proceeds to step S8, and it is determined whether or not the predetermined amount of note data is the last part of the performance data. If this determination is affirmative, the process proceeds to step S9, and the image data of the mark corresponding to the last note data is changed. That is, the image data of the original mark is replaced with the image data of the mark having a different shape. In addition, the shape of the mark after the conversion in step S7 and step S9 may be the same, or may be different from each other.
[0038]
In step S10, image data of the navigation information is supplied to a display driver for energizing the LCD 92. The display driver activates the LCD 92 according to the supplied image data and displays navigation information.
[0039]
In step S11, the presence / absence of key depression is determined based on the detection result of the key scan circuit 7a. If a key depression is detected, a sound generation process is performed in step S12. Specifically, the note data to be sounded by one key depression is read from the RAM 3 and set in the channel of the sound source device 4. If no key press is detected for a predetermined time, the process proceeds to step S17.
[0040]
In step S13, the mark of the navigation information corresponding to the note data provided for sound generation in step S12 is changed to another shape ("+") indicating that the musical instrument has been played.
[0041]
In step S14, the read address is advanced by one to correspond to the next key press. In step S15, it is determined whether or not the performance has been completed up to the end of the predetermined amount of note data based on the read address. If the determination is affirmative, the process proceeds to step S16. If step S15 is negative, the process proceeds to step S11.
[0042]
In step S16, it is determined whether or not the performance has been completed up to the end of the performance data. If the determination is affirmative, the process proceeds to step S17. If the performance has not been completed to the end, step S16 is negative and the process proceeds to step S3. In step S17, it is determined whether or not the stop switch 16 for ending the performance has been pressed. If the determination is negative, the process proceeds to step S18 to repeat the performance, the read address is reset, and the process proceeds to step S3. If step S7 is positive, the process ends.
[0043]
In steps S7 and S9, the shapes of the first mark and the last mark of the last bar are changed. However, when the colors of these marks are changed as shown in FIG. In S9, the color information attached to the image data of the mark may be changed. Also, when the start line Bs and the end line Be are added as shown in FIG. 7 before the first mark and after the last mark, the start line Bs and the end line Be are represented in steps S7 and S9. Therefore, image data stored in advance may be added.
[0044]
FIG. 13 is a flowchart of a process of displaying the remaining number N of keyboard operations as an end time notice display means of the key press timing guidance display, and is executed in place of steps S6 to S15. In step S20, the remaining number of operations N is calculated by subtracting the actual number of operations n from the initial value NI of the number of operations. In step S21, the numerical image data representing the remaining number of operations N is combined with the image data generated in step S5. In steps S22 to S25, processing similar to that in steps S10 to S13 is performed.
[0045]
In step S26, the number of operations n is incremented. In step S27, the read address is advanced by one to correspond to the next key press. In step S28, it is determined whether or not the performance has been completed up to the end of the measure based on the read address. If the determination is affirmative, the process proceeds to step S16. If step S28 is negative, the process proceeds to step S20.
[0046]
FIG. 14 is a flowchart of a process for displaying the display unit DI, which is a performance progress indicator, as an end time notice display means for the key press timing guidance display, and is executed in place of steps S6 to S15. In step S30, the remaining number of operations N is calculated in the same manner as in step S20. In step S31, a performance end ratio R (%) is calculated by dividing the remaining number of operations N by the initial value NI of the number of operations. In step S32, color information corresponding to the length corresponding to the ratio R in the image data representing the display unit DI is changed. In the case of monochrome display, the digital value of the image data is inverted instead of changing the color information. In step S33, the image data of the display unit DI is combined with the image data generated in step S5. In steps S34 to S37, the same processing as in steps S10 to S13 is performed. Steps S38 to S40 are processed in the same manner as steps S26 to S28.
[0047]
FIG. 15 is a flowchart of a process for providing a blank line BL for indicating repetition of music when navigator information is displayed on a plurality of lines, and is executed in place of steps S6 to S9. In step S50, it is determined whether or not there is note data for the first predetermined amount of performance data. If this determination is affirmative, the process proceeds to step S51, where data for displaying the blank row BL is output to the display driver, and a blank is displayed. In step S52, the image data generated in step S5 is output to the display driver to display the nigator information. Thus, navigator information having a blank row BL between the last part and the first part of the song is displayed on the LCD 92. If step S50 is negative, step S51 is skipped and the process proceeds to step S52, where the navigation information is displayed without providing the blank line BL.
[0048]
FIG. 1 is a block diagram showing the main functions of the CPU 1 for displaying the navigation information. In the figure, the performance data storage unit 23 stores key pressing timing information. The navigation information creation unit 24 creates image data of navigation information including marks having intervals determined based on the timing information. The navigation information is created for a preset number of note data. The created image data is input to the display driver 25 via the switching unit 27, and the display driver 25 activates the LCD 92 according to the image data to display navigation information.
[0049]
The determination unit 26 determines whether the predetermined amount of note data is the first part or the last part of the performance data. This determination is made from the additional information of the note data. If it is the first or last part, the switching unit 27 is switched, and the image data created by the navigation information creating unit 24 is input to the data correcting unit 28.
[0050]
On the other hand, the remaining performance detection unit 29 calculates the remaining number of operations or the performance end ratio based on the number of key presses detected by the key scan circuit 7a. The calculated number of remaining operations and the performance end ratio are input to the data correction unit 28.
[0051]
The data correction unit 28 converts the shape or color of the scheduled portion of the input image data, or generates numbers representing the number of operations or the performance end ratio, and generates image data of the display unit DI. It is added to the image data input from the navigation information creation unit 24. The image data processed by the data correction unit 28 is input to the display driver 25.
[0052]
Although the present invention has been described according to the preferred embodiments, the following modifications are possible. For example, a blank line BL is displayed in a plurality of lines of navigation information display so that the repetition of the music is recognized, but in the display of each line, the navigation information of the first part of the next music is displayed. There will be a time delay. In other words, when all the last navigation information marks have been converted to “+” in the previous song, a timer with a scheduled time is started, and when the timer expires, the first part of the next song is navigated. Display information. It should be noted that automatic performance is not started even if the performer presses the key until the timer is started and the time is up.
[0053]
As a further modification, when the last track of the previous navigation information is converted to “+”, the counter that counts the number of times the key is pressed is activated. You can also start displaying navigation information for the next song.
[0054]
Moreover, the display of the deformation | transformation of the said mark, a color change, and the remaining frequency | count and ratio of operation may be performed independently, respectively, and you may carry out in combination. For example, the color may be changed together with the change in the shape of the mark, and the remaining number of operations N and the ratio R may be displayed at the same time.
[0055]
【The invention's effect】
As is clear from the above description, according to the first to third aspects of the present invention, the first and / or last key pressing timing of the performance is displayed in the guidance display (navigation information) for displaying the key pressing timing. Since what is shown is clearly distinguished from other guidance displays, the performer can clearly recognize the repeated display of the navigation information accompanying the repeated automatic performance. Further, according to the inventions of claims 4 to 7, since the end time of the performance is notified in advance by displaying the key pressing timing separately, the player can recognize the end of the performance, thereby repeating the performance. It can be easily recognized.
[0056]
Further, according to the eighth to eleventh aspects of the present invention, it is possible to recognize the repetition of the automatic performance by the blank between the last key pressing timing display and the first key pressing timing display.
[Brief description of the drawings]
FIG. 1 is a block diagram showing main functions of an electronic organ according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an overall configuration of an electronic organ according to an embodiment of the present invention.
FIG. 3 is a view showing a control panel of the electronic organ according to one embodiment of the present invention.
FIG. 4 is a diagram showing a display example (1) of navigation information.
FIG. 5 is a diagram showing a display example (2) of navigation information.
FIG. 6 is a diagram showing a display example (3) of navigation information.
FIG. 7 is a diagram showing a display example (4) of navigation information.
FIG. 8 is a diagram showing a display example (5) of navigation information.
FIG. 9 is a diagram showing a display example (6) of navigation information.
FIG. 10 is a diagram showing a display example (7) of navigation information.
FIG. 11 is a diagram showing a display example of conventional navigation information.
FIG. 12 is a flowchart of a first example of a navigation process.
FIG. 13 is a flowchart of a second example of the navigation process.
FIG. 14 is a flowchart of a third example of the navigation process.
FIG. 15 is a flowchart of a fourth example of the navigation process.
FIG. 16 is a diagram showing a display example of conventional navigation information.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... CPU, 4 ... Sound source device, 5 ... D / A converter, 9 ... Control panel, 10 ... Music selection switch, 14 ... Mode selection switch, 15 ... Stop switch, 23 ... Performance data storage part, 24 ... Navigation information Creation part, 25 ... Display driver, 28 ... Data correction part

Claims (3)

In an automatic performance device that reads out one or a plurality of note data sequentially in response to a key depression of a keyboard device,
Display means for displaying guidance of key pressing timing based on the sound generation timing information of the note data;
Determining means for determining whether or not the read note data is at least one of a first part and a last part of the automatic performance data ;
When it is determined by the determination means that the note data is at least one of the first part and the last part of the automatic performance data, the performance based on the note data in the guidance display is determined according to the determination. And a data correction unit for displaying at least one of the first key pressing timing and the last key pressing timing guidance display on the display means in a form different from the other key pressing timing guidance. Automatic performance device.   2. The automatic performance according to claim 1, further comprising means for changing the shape and the color of the mark in order to express the different form while performing the guidance display with a mark corresponding to each key depression. apparatus. In an automatic performance device that reads out one or a plurality of note data sequentially in response to a key depression of a keyboard device,
Display means for displaying guidance of key pressing timing based on the sound generation timing information of the note data;
Determining means for determining whether or not the read note data is at least one of a first part and a last part of the automatic performance data ;
When it is determined by the determining means that the note data is at least one of the first part and the last part of the automatic performance data, the first key pressing timing of the performance based on the note data according to the determination And a data correction unit for displaying on the display means at least one of the last key press timings with a mark added to the guide display of the key press timings.

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