JP3903864B2 - Program for realizing automatic composition device and automatic composition method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a self-composing device that performs automatic composition based on a generation range of a composition to be composed (generated) and a motif melody of the composition to be composed, and a program for realizing an automatic composition method.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an automatic music composition device that automatically performs music composition based on a generation range of a music to be composed and a motif melody of the music to be composed has been known.
[0003]
Such an automatic musical composition apparatus is usually configured so that the user can input and set an arbitrary generated sound range. And the input setting method of the generated sound range is, for example,
(1) It is configured so that the upper limit name and lower limit pitch name of the generated range can be directly specified. When the user specifies the upper limit name and lower limit pitch name of the generated range, the range of the range indicated by both pitch names is generated. Method of input setting as a sound range (2) It is configured to display a picture of a keyboard on a display device, and when the user specifies a key range on the display keyboard using a predetermined operator, the specified key range A method of inputting and setting a sound range corresponding to the generated sound range is known.
[0004]
As for the motif melody, it is known that the user can input and set an arbitrary melody using, for example, an actual musical instrument or a singing voice.
[0005]
[Problems to be solved by the invention]
However, even if the conventional automatic musical composition device is configured such that the user can input and set a favorite motif melody using, for example, an actual musical instrument or a singing voice, the generated sound range is the above (1) or ( 2) The input settings were made in the same way as described above. That is, both the input settings of the motif melody and the input settings of the generated sound range can be performed in the same way, but both input settings are independent and irrelevant. Therefore, there is room for improvement to further improve user operability.
[0006]
The present invention has been made paying attention to this point, and the first object is to provide a program for realizing an automatic song apparatus and an automatic song method that can further improve the operability of the user. Objective.
[0007]
Also, in the above-described conventional automatic music composition device, as described above, the input setting of the motif melody and the input setting of the generated sound range are performed by independent and unrelated methods. , It was difficult for the user to know which range of melody to input.
[0008]
The present invention has been made paying attention to this point, and when a user inputs and sets a favorite motif melody using, for example, an actual musical instrument or a singing voice, the range of the melody to be input can be determined at a glance. It is a second object of the present invention to provide a program for realizing an automatic song apparatus and an automatic song method that can be confirmed.
[0009]
[Means for Solving the Problems]
In order to achieve the first object, an automatic music composition apparatus according to claim 1 includes an input means for inputting a motif melody of a music to be composed, and the input means for the composition to be composed. It is characterized by comprising setting means for setting a generated sound range, and automatic composition means for performing automatic composition based on the inputted motif melody and the set generated sound range.
[0010]
In order to achieve the second object, the automatic composition apparatus according to claim 2 is the automatic composition apparatus according to claim 1, wherein the display section provided on or near the input means or the input means is provided. The display unit capable of displaying a graphic simulating the display further includes display means for displaying the set generated sound range.
[0011]
Furthermore, the program according to claim 3 can be realized by the same technical idea as that of claim 1.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0013]
FIG. 1 is a block diagram showing a schematic configuration of an automatic musical composition apparatus according to an embodiment of the present invention.
[0014]
As shown in the figure, the automatic composition apparatus of the present embodiment includes a keyboard 1 for inputting pitch information, a panel switch 2 having a plurality of switches for inputting various information, and a keyboard 1 A key press detection circuit 3 that detects a key press state of each key, a switch detection circuit 4 that detects a press state of each switch of the panel switch 2, a CPU 5 that controls the entire apparatus, and a control program executed by the CPU 5 A ROM 6 for storing various table data, a RAM 7 including a work area for temporarily storing performance data, various input information, calculation results, and the like, and a timer 8 for measuring interrupt times and various times in timer interrupt processing. Display various information, such as large liquid crystal display (LCD) or CRT (Cathode Ray Tube) display and light emitting diode (LED) , A flexible disk drive (FDD) 10 that drives a flexible disk (FD) 20 that is a storage medium, and a hard disk (not shown) that stores various application programs including the control program, various data, and the like. A CD-ROM drive (CD) for driving a hard disk drive (HDD) 11 for driving) and a compact disk-read only memory (CD-ROM) 21 for storing various application programs including the control program and various data. ROMD) 12, a MIDI interface (I / F) 13 for inputting an external MIDI (Musical Instrument Digital Interface) signal or outputting a MIDI signal to the outside, and a communication network 101, for example, A communication interface (I / F) 14 for transmitting / receiving data to / from the computer 102, a tone generator circuit 15 for converting performance data inputted from the keyboard 1, preset performance data, and the like into musical tone signals, and the tone generator circuit 15. An effect circuit 16 for applying various effects to the tone signal from 15 and a tone signal from the effect circuit 16 that is converted into sound, such as a DAC (Digital-to-Analog Converter), amplifier, speaker, etc. The system 17 is comprised.
[0015]
The above components 3 to 16 are connected to each other via a bus 18, a timer 8 is connected to the CPU 5, another MIDI device 100 is connected to the MID II / F 13, and a communication network 101 is connected to the communication I / F 14. Are connected to the sound source circuit 15, and a sound system 17 is connected to the effect circuit 16.
[0016]
As described above, the hard disk of the HDD 11 can also store the control program executed by the CPU 5. When the control program is not stored in the ROM 6, the control program is stored in the hard disk and is read into the RAM 7. Thus, the CPU 5 can be caused to perform the same operation as when the control program is stored in the ROM 6. In this way, control programs can be easily added and upgraded.
[0017]
The control program and various data read from the CD-ROM 21 of the CD-ROM drive 12 are stored in the hard disk in the HDD 11. As a result, a new installation or version upgrade of the control program can be easily performed. In addition to the CD-ROM drive 12, a device for using various types of media such as a magneto-optical disk (MO) device may be provided as an external storage device.
[0018]
The MIDII / F 13 is not limited to a dedicated one, and may be configured by a general-purpose interface such as RS-232C, USB (Universal Serial Bus), IEEE 1394 (Eye Triple E 1394). In this case, data other than MIDI messages may be transmitted and received simultaneously.
[0019]
As described above, the communication I / F 14 is connected to a communication network 101 such as a LAN (Local Area Network), the Internet, or a telephone line, and is connected to the server computer 102 via the communication network 101. When the above programs and various parameters are not stored in the hard disk in the HDD 11, the communication I / F 14 is used to download programs and parameters from the server computer 102. A computer serving as a client (automatic composition apparatus in the present embodiment) transmits a command for requesting downloading of a program and parameters to the server computer 102 via the communication I / F 14 and the communication network 101. Upon receiving this command, the server computer 102 distributes the requested program and parameters to the computer via the communication network 101, and the computer receives these programs and parameters via the communication I / F 14 and receives them in the HDD 11. Downloading is completed by accumulating on the hard disk.
[0020]
In addition, an interface for directly exchanging data with an external computer or the like may be provided.
[0021]
Note that the self-composing apparatus of the present embodiment is constructed on a general-purpose personal computer, as can be seen from the above-described configuration, but is not limited to this, and only from the minimum elements that can implement the present invention. You may construct | assemble on the comprised dedicated apparatus.
[0022]
A control process executed by the automatic musical composition apparatus configured as described above will be described with reference to FIGS.
[0023]
The automatic musical composition apparatus according to the present embodiment can input and set both the generated sound range and the motif melody using the keyboard 1, and further, when the motif melody is input and set, the user can see the input generated sound range at a glance. As described above, there is a feature in that it can be displayed on or near the keyboard 1 or on the display device 9.
[0024]
FIG. 2 is a flowchart showing a procedure of the automatic music piece processing executed by the automatic music piece device of the present embodiment, particularly the CPU 5.
[0025]
In the figure, first, when the user designates the style of a song to be composed, such as rock, popular, and classic, for example, the designated style is input (stored) in the work area of the RAM 7 (step S1). .
[0026]
Next, a list of composition data corresponding to the input music style is displayed on the display device 9, and the data designated by the user is selected from the list and stored in the work area of the RAM 7 (step S2).
[0027]
Further, when the user designates the range (generated range) of the entire song to be generated (composed) using the keyboard 1, this generated range is stored in the work area of the RAM 7 as part of the composition data. (Step S3). Here, the generated sound range is specified by the following method, for example. That is, when the generated sound range setting mode is selected, a message “Please specify the lower limit of the generated sound range by pressing a key on the keyboard” is displayed on the display device 9 first. In response to this, when the user designates a lower limit (for example, “C2”) as shown in FIG. 3A, a corresponding MIDI message is inputted via the keyboard 1 and the key depression detection circuit 3. Therefore, the CPU 5 analyzes this MIDI message, detects the lower limit of the generated sound range specified by the user, and stores it in the work area of the RAM 7. Next, a message “Please specify the upper limit of the generated range by pressing a key on the keyboard” is displayed on the display device 9, and the user responds as shown in FIG. When the upper limit (for example, “D3”) is designated, the CPU 5 similarly detects the upper limit of the generated sound range designated by the user and stores it in the work area of the RAM 7.
[0028]
Then, the set generated sound range, that is, the generated sound range indicated by the stored lower limit and upper limit is displayed (step S4).
[0029]
FIGS. 3B to 3E are diagrams showing display examples of the generated sound range. When each key of the keyboard 1 is configured to shine, all keys in the set generated sound range are shown. It is possible to make it shine (Fig. (B)), or to make only the keys corresponding to the lower and upper limits of the set generated sound range shine (Fig. (C)), and in the vicinity of the keyboard 1 each key In the case where LEDs are provided corresponding to each, the LEDs in the set generated sound range are all lit ((d) in the same figure), and the lower limit and the upper limit of the set generated sound range are respectively corresponded. A display mode in which only the LED is lit ((e) in the figure) can be considered.
[0030]
In the case of an external keyboard device that is not connected to the automatic performance device and is not built in the automatic performance device, such as a MIDII / F13, a MIDI exclusive message or the like is sent to the external keyboard device. The display control command may be supplied using.
[0031]
FIG. 4 is a diagram showing another display example of the set generated sound range, and shows an example in which the set generated sound range is displayed on the display device 9. In the figure, the vertical axis is the pitch, and the horizontal axis is the measure direction, and the entire range generated by the automatic music device is displayed, and the set generated range (set range) is indicated by diagonal lines in the entire range. It is trying to display. It should be noted that the set range is indicated by “hatched lines” for the convenience of illustration, and it is needless to say that the set range is not limited as long as the set range can be seen at a glance with respect to the entire range. Yes. As other display modes, for example, a mode in which the color indicating the entire sound range is different from the color indicating the set sound range, or both are made the same color and the density is changed is conceivable. In FIG. 4, the generated melody is also displayed, but the melody is not displayed before the melody is generated.
[0032]
Returning to FIG. 2, when the user inputs a motif melody within the set generated sound range, that is, within the displayed generated sound range, using the keyboard 1, this motif melody is stored in the work area of the RAM 7 (step S5). .
[0033]
When the user gives an instruction to start an automatic song by a predetermined operation, the CPU 5 generates song data for one song based on the stored motif melody and the stored composition data (step). S6). Here, the automatic music composition method is not a feature of the present invention, and a known method may be used, and the description thereof is omitted.
[0034]
In this embodiment, a keyboard instrument is used as an actual musical instrument for inputting and setting the generated sound range and motif melody. However, the present invention is not limited to this. For example, any instrument such as a stringed instrument, a wind instrument, and a percussion instrument having a musical scale can be used. It may be adopted. When a stringed instrument is adopted, for example, an LED is embedded at a position corresponding to the scale sound on or in the fingerboard, and the set generated sound range is displayed in the display mode shown in FIG. 3 (d) or (e). You just have to do it. However, depending on the type of instrument used, it may be difficult to display the set generated sound range near the instrument. In this case, the set generated sound range is displayed in the display mode shown in FIG. It may be displayed on the display device 9. Alternatively, a graphic display imitating a performance input unit of a musical instrument such as a keyboard or a fingerboard may be displayed on the display device 9, and the sound range may be displayed in a display form as shown in FIG.
[0035]
In the present embodiment, only one generated sound range is input and set over the entire music. However, the present invention is not limited to this. For example, the generated sound range is different in the motif portion and other portions in the music. May be input and set.
[0036]
Furthermore, the means for inputting and setting the generated sound range and the motif melody is not limited to a real musical instrument, and may be a human singing voice. In this case, in addition to the configuration of FIG. 1, at least a microphone for inputting a singing voice, an ADC (Analog-to-Digital Converter) for converting an analog signal of a singing voice inputted through the microphone into a digital signal, It is necessary to provide a digital filter or the like that extracts only the signal components necessary for analyzing the pitch from the singing voice (digital signal) converted through the ADC.
[0037]
FIG. 5 is a flowchart showing a procedure of another generated sound range setting process, that is, a generated sound range setting process when the generated sound range is input by singing voice. The generated sound range setting process of FIG. 2 replaces the generated sound range setting process of step S3 of FIG. 2, and the generated sound range can be set by singing voice if the other steps of FIG. 2 are modified as described later.
[0038]
In FIG. 5, first, when the user selects the generated sound range setting mode, a message “Please specify the lower limit of the generated sound range with a song” is displayed on the display device 9. When the pitch is input as a song (for example, “A”), the digital signal input through the microphone, ADC, digital filter, and the like is stored in the work area of the RAM 7 (step S11).
[0039]
Next, the CPU 5 detects the pitch (pitch) by analyzing the stored digital signal (step S12), and quantizes the detected pitch to equal temperament (step S13). Is stored in the work area of the RAM 7 (step S14).
[0040]
Similarly, the upper limit pitch is detected from the input song and stored in the work area of the RAM 7 (steps S15 to S18).
[0041]
Thereafter, the process proceeds to step S4 of FIG. 2, and the set generated sound range is displayed on the display device 9 in the display mode of FIG. In the present embodiment, the generated sound range is input by singing voice, and the motif melody is also input by singing voice. Therefore, the generated generated sound range is displayed in the display mode of FIG. The display mode of FIG. 4 is adopted because it is easier to understand than the display modes of b) to (e). However, the generated sound range may be input as a singing voice, and the motif melody may be input from the keyboard 1, and in this case, it is better to display in the display mode of FIGS. 3 (b) to 3 (e). .
[0042]
Then, a motif melody is input within the set generated sound range (step S5). In the present embodiment, since the motif melody is also input by singing voice, it is necessary to add the same processing as the processing of steps S12 and S13 to the processing of step S5. If the motif melody is input from the keyboard 1 as described above, the process of step S5 may not be changed.
[0043]
The processing in the next step S6 can be performed as described above, and the description thereof is omitted.
[0044]
By applying the above-described method of inputting and setting the generated sound range and the motif melody with a human singing voice as it is to the natural musical instrument, the generated sound range and the motif melody can be input and set with the natural musical instrument. In this case, a display device may be provided separately from the natural musical instrument, and the set generated sound range may be displayed on the display device in the display mode of FIG.
[0045]
As described above, the means for inputting and setting the motif melody is used to input and set the generated sound range, so that the motif melody can be input immediately after the generated sound range is input, which improves operability. it can.
[0046]
Furthermore, since the set generated sound range is displayed on or near the means for inputting and setting the motif melody, the user can confirm at a glance the range of the motif melody to be input.
[0047]
It should be noted that a name is given to the generated sound range set in step S3 of FIG. 2, and a plurality of names are stored in a predetermined area of the RAM 7, so that necessary ones can be called and set as a part of the composition data. It may be configured. Such a configuration is very convenient when the generated sound range set in the past is used as it is as composition data.
[0048]
Further, even when a motif melody is input and set by a human singing voice, the generated sound range may be input from an actual musical instrument. In this way, when the range of the singing voice is known in advance, the generated range can be accurately set.
[0049]
Conversely, even when a motif melody is input and set with an actual musical instrument, the generated sound range may be input with a singing voice. Since the range of the singing voice changes according to the physical condition at that time, when composing for that person, it is possible to make a more appropriate setting by inputting the generated range with the singing voice.
[0050]
A program in which a storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU 5 or MPU) of the system or apparatus is stored in the storage medium. It goes without saying that the object of the present invention can also be achieved by reading and executing the code.
[0051]
In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program code constitutes the present invention.
[0052]
As the storage medium for supplying the program code, for example, the flexible disk 20, hard disk, optical disk, magneto-optical disk, CD-ROM 21, CD-R, magnetic tape, nonvolatile memory card, ROM 6 or the like is used. it can. Further, the program code may be supplied from the server computer 102 via another MIDI device 100 or the communication network 101.
[0053]
Further, by executing the program code read out by the computer, not only the functions of the above-described embodiments are realized, but also the OS running on the computer based on the instruction of the program code performs the actual processing. It goes without saying that a case where the functions of the above-described embodiment are realized by performing part or all of the above and the processing thereof is included.
[0054]
Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the case where the CPU 5 or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.
[0055]
【The invention's effect】
As described above, according to the first or third aspect of the invention, using the information input from the input means for inputting the motif melody of the song to be composed, the generated sound range of the song to be composed In other words, the motif melody and the generated sound range are input using the same input means, so the motif melody can be input immediately after the generated sound range is input, improving operability. Can do.
[0056]
According to the second aspect of the present invention, since the set generated sound range is displayed on the display unit provided on or near the input means, the user can input the range of the motif melody to be input. Can be confirmed at a glance.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of an automatic musical composition apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a procedure of an automatic music piece process executed by the automatic music piece device of FIG. 1, particularly a CPU;
FIG. 3 is a diagram illustrating a state in which a generated sound range is input and set and a display example of the set generated sound range.
FIG. 4 is a diagram showing another display example of the set generated sound range.
FIG. 5 is a flowchart showing a procedure of a generated sound range setting process when the generated sound range is input by singing voice.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Keyboard (input means), 5 CPU (input means, setting means, self-composing music means, display means), 7 RAM (input means), 9 Display apparatus (display means)

Claims (3)

An input means for inputting the motif melody of the song to be composed;
Using the input means, setting means for setting a generated sound range of the song to be composed;
An automatic music composition device comprising: automatic music composition means for performing automatic music composition based on the inputted motif melody and the set generated sound range. The display unit for displaying the set generated sound range is further provided on a display unit provided on or near the input unit or a display unit capable of graphic display imitating the input unit. Item 2. The automatic composition apparatus according to item 1. A setting procedure for setting a generation range of the song to be composed using the information input from the input means for inputting the motif melody of the song to be composed;
A program for causing a computer to execute an automatic music composition procedure for performing an automatic music composition based on the motif melody input from the input means and the set generated sound range.

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