JP2004219550A - Music playing data processor and program for realizing music playing data processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a playing data processor capable of automatically adding expression of a tendency exactly that a user intends, to music playing data. <P>SOLUTION: A mute pattern of one measure shown by (a) is selected and applied to music playing data shown by (b) for every measure. When the mute pattern is applied as it is, expression shown by (c) is obtained and the music playing data after being given the expression has proper expression in each measure, but the same pattern is repeated by measures and mechanical on the whole not to obtain proper expression. For the purpose, it is made possible to set the extent of randomness to control application to the mute pattern. Fig. (d) shows an example of an expression result when the extent of randomness is set to 25% (whereas complete randomness is 100%) and the expression result is different in mute position between a 1st measure and a 2nd measure, but its generation probability is 1/8 for every measure and the mute pattern is applied as it is in the majority (7/8). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a program for implementing a performance data processing device and a performance data processing method for automatically changing the sound generation characteristics of performance data.
[0002]
[Prior art]
Conventionally, as a performance data processing device that changes the sounding characteristics of performance data, by manually inputting target performance data, the value of a parameter that has already been set is corrected or a new parameter is added. There has been known an apparatus in which an expression (a musical expression such as a natural performance, a beautiful performance, or a vivid performance) can be added to a mechanical and expressionless performance reproduced from the performance data.
[0003]
However, in such a performance data processing apparatus, the user must select the parameter to be modified or added and determine the value of the parameter by himself / herself. It is difficult to select a parameter to be added and determine an optimal parameter value for the expression, and manually inputting the parameter value itself is a cumbersome operation.
[0004]
Therefore, in order to allow a wide range of users, including beginners, to easily apply facial expressions to performance data, parts that can be performed without discomfort even if automatic facial expressions are performed are performed as automatically as possible. Is more desirable.
[0005]
Therefore, there has been proposed a performance data processing device that automatically adds a facial expression to performance data (for example, see Patent Document 1).
[0006]
[Patent Document 1]
JP-A-2002-229564
[Problems to be solved by the invention]
However, in the above-described conventional performance data processing device, if the expression is performed under the same conditions, the expression added to the performance data does not change even if the expression is repeated many times. Would. On the other hand, it is conceivable to apply a random expression, ignoring the condition, but in this case, the set condition does not make sense, and it is not possible to add the expression of the tendency intended by the user to the performance data. Can not.
[0008]
The present invention has been made by paying attention to this point, and a performance data processing apparatus and a performance data processing apparatus capable of automatically adding an expression of a tendency which is not mechanical and intended by a user to performance data. It is an object to provide a program for implementing a data processing method.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a performance data processing apparatus according to claim 1, wherein a generating means for generating processing reference data, and a processing processing for processing individual sounding characteristics of the performance data based on the processing reference data. Means, for each predetermined element of the processing reference data, determining means for randomly determining the use mode in the processing means, and control means for controlling the degree of random, the determining means, The use mode is determined to a controlled degree of randomness, and the processing means uses the corresponding element in the determined use mode to process the sounding characteristics of the corresponding performance data. I do.
[0010]
Further, in the performance data processing device according to claim 1, the control means includes a generating means for generating a random number within a predetermined range, and a setting means for arbitrarily enlarging or reducing a partial area within the predetermined range. It is preferable that the determining unit determines the use mode according to whether the random number generated by the generating unit is included in the area set by the setting unit.
[0011]
Further, in the performance data processing apparatus according to any one of claims 1 and 2, it is preferable that at least a part of the elements, the usage mode of which is not determined by the determination unit, be provided in the processing reference data.
[0012]
Furthermore, in the performance data processing device according to any one of claims 1 and 2, it is preferable that the use mode is one of a mode in which the element is used as it is and a mode in which the element is changed and used.
[0013]
The program described in claim 3 can be realized by the same technical idea as in claim 1.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
FIG. 1 is a block diagram showing a schematic configuration of a performance data processing device according to one embodiment of the present invention.
[0016]
As shown in FIG. 1, a performance data processing apparatus according to the present embodiment includes an operation unit group 1 including a keyboard for character input, a pointing device such as a mouse, and a plurality of operation units such as various switches. A detection circuit 2 for detecting the operation state of each of the operators, a CPU 3 for controlling the entire apparatus, a ROM 4 for storing a control program executed by the CPU 3, various table data and the like, performance data, various input information and A RAM 5 for temporarily storing calculation results and the like, an external storage device 6 for storing various application programs including the control program, various performance data, various data, and the like; and a liquid crystal display (LCD) for displaying various information and the like. ) And a display device 7 including a light emitting diode (LED) and an external MIDI (Musical Instrument). a communication interface (I / F) 8 for connecting an external device such as a central digital interface (device) 100 and transmitting and receiving data to and from the external device; a sound source circuit 9 for converting the stored performance data and the like into a musical tone signal; An effect circuit 10 for imparting various effects to the tone signal from the tone generator circuit 9, and a tone (digital-to-analog converter) or amplifier for converting the tone signal from the effect circuit 10 into sound. And a sound system 11 such as a speaker.
[0017]
The components 2 to 10 are connected to each other via a bus 12, an external MIDI device 100 is connected to the communication I / F 8, an effect circuit 10 is connected to the tone generator 9, and a sound is connected to the effect circuit 10. System 11 is connected.
[0018]
Examples of the external storage device 6 include a flexible disk drive (FDD), a hard disk drive (HDD), a CD-ROM drive, and a magneto-optical disk (MO) drive. As described above, the control program executed by the CPU 3 can be stored in the external storage device 6. If the control program is not stored in the ROM 4, the control program is stored in the external storage device 6. By reading it into the RAM 5, the CPU 3 can be caused to perform the same operation as when the control program is stored in the ROM 4. By doing so, it is possible to easily add a control program or upgrade the version.
[0019]
In the illustrated example, the external I / F device 100 is connected to the communication I / F 8. However, the present invention is not limited to this. For example, a server computer may be connected via a communication network such as a LAN (Local Area Network), the Internet, or a telephone line. You may make it connected. In this case, if the above programs and various parameters are not stored in the external storage device 6, the communication I / F 8 is used to download the programs and parameters from the server computer. The client computer (the performance data processing device in the present embodiment) transmits a command for requesting the download of programs and parameters to the server computer via the communication I / F 8 and the communication network. Upon receiving this command, the server computer distributes the requested program or parameter to the computer via the communication network, and the computer receives the program or parameter via the communication I / F 8 and , The download is completed.
[0020]
The performance data processing apparatus according to the present embodiment is constructed on a general-purpose personal computer as can be understood from the above-described configuration. However, the present invention is not limited to this, and only the minimum elements that can implement the present invention are used. May be constructed on a dedicated device configured from.
[0021]
The control processing executed by the performance data processing device configured as described above will be described first with an outline, and then in detail with reference to FIGS.
[0022]
The performance data processing device according to the present embodiment, when performance data is created by imitating a chord stroke performance of a guitar, replaces (thinning out) a part of the performance data with a mute performance, thereby providing a chord stroke performance. It is designed to give an expression to.
[0023]
Specifically, a mute pattern for one bar as shown in FIG. 5A is selected, and this mute pattern is applied to the performance data as shown in FIG. 5B for each bar. 5 (c) and 5 (d) can be applied to the performance data. At this time, if the mute pattern is applied as it is, the expression becomes as shown in FIG. 5C, and the performance data after the expression has an appropriate expression in each measure, but as a whole, each measure has Since the same pattern is repeated every time and it is mechanical, it cannot be said that it is an appropriate expression. Therefore, in the present embodiment, the degree of randomness can be set, and the application of the mute pattern is controlled according to the degree of randomness. FIG. 5D shows an example of a facial expression result when the degree of randomness is set to 25% (complete randomness is set to 100%). That is, in the expression expression result of FIG. 5D, the mute position is different between the first measure and the second measure, but the occurrence probability is 1/8 for each measure, In (7/8), the mute pattern is applied as it is.
[0024]
As described above, in the present embodiment, an expression can be added to the performance data while leaving the tendency of the mute pattern, so that the expression of the tendency that is not mechanical and that is intended by the user is automatically added to the performance data. Can be added to
[0025]
Of course, in this embodiment, since the degree of randomness can be set arbitrarily, it can be completely random or non-random. In the former case, since the tendency of the mute pattern completely disappears, it is not mechanical but also musical, and the expression is not as intended by the user. On the other hand, in the latter case, the tendency of the mute pattern appears as it is, and as described above, when viewed as a whole song, it becomes a mechanical expression, which is also an expression as intended by the user. No. Both are extreme cases and only mean that such a setting is possible.
[0026]
Next, this control processing will be described in detail.
[0027]
FIG. 2 is a flowchart showing a procedure of a main routine executed by the performance data processing apparatus of the present embodiment, particularly, the CPU 3.
[0028]
In the figure, first, initialization processing such as clearing the RAM 5 and setting various parameter values to default values is executed (step S1).
[0029]
Next, an operator processing subroutine for performing various settings of the apparatus and performing various processes of performance data in accordance with the operation of each operator of the operator group 1 (the details of which are shown in FIG. (To be described later) (step S2), and an automatic performance process for automatically performing the performance data stored in the automatic performance data storage area secured in a predetermined area of the RAM 5 is executed (step S3). Various parameters are generated based on the generated event, and the generated various parameters are output to the tone generator circuit 9, and a tone signal is instructed to the tone generator circuit 9 to generate a corresponding tone signal from the tone generator circuit 9. , By giving an instruction to the effect circuit 10 to give the effect selected by the user, the effect is given to this musical tone signal, Output to 1, after the sound system 11 tone was musical tone generation processing for generating the (step S4), and returns to step S2, and the above processing is repeated.
[0030]
FIG. 3 is a flowchart showing a detailed procedure of the above-described operator processing subroutine. The operator processing subroutine is configured to be able to perform the following four types of processing. That is,
(1) Expression processing (2) Performance-related processing (3) Music change processing (4) Other processing.
[0031]
In FIG. 3, first, when any one of the operators in the operator group 1 is operated, if the operator is for instructing the expression processing, the processing of steps S13 to S18, that is, In the case where the above (1) expression processing is executed to instruct performance-related, the processing of steps S20 to S24, that is, the above-mentioned (2) performance-related processing is executed, and a change of music is instructed. If it is for executing the process of steps S26 and S27, ie, the above (3) music change process, and instructing other processes, the process of step S28, ie, the above (4) Execute other processing.
[0032]
In step S13, a facial expression menu is displayed on the display device 7. In step S14, a facial expression range and a facial expression type selected by the user from the facial expression menu are received. When the user selects “thinning mute processing” as the expression type, the subroutine executes a thinning mute processing subroutine described later with reference to FIG. 4 (steps S15 → S16). Then, other expression processing is executed (steps S15 → S17). The performance data after the expression is replaced with the original performance data, that is, the performance data to be subjected to the expression, and recorded again, and is stored in the automatic performance data storage area (step S18). The difference between the performance data after expression and the original performance data may be obtained, and the difference data may be recorded in association with the original performance data.
In this case, in the automatic performance data storage area, the performance data after expression may be stored as it is, or only the original performance data may be stored when automatically performing the performance data after expression. Then, while reading out the performance data, the performance data may be corrected with the corresponding difference data, and then the sound may be generated.
[0033]
The (2) performance-related processing includes, for example, processing for reproducing performance data with an expression (steps S20 → S21), processing for stopping the reproduction (steps S20 → S22 → S23), and other processing (steps S20 → S22 → S23). S20 → S22 → S24).
[0034]
When an instruction to change the music is given, the change instruction is received (step S26), the music data (performance data) is read out, and various information is displayed (step S27).
[0035]
FIG. 4 is a flowchart showing a detailed procedure of the thinning-out mute processing subroutine.
[0036]
In the figure, first, a plurality of types of templates indicating mute patterns are read out from the external storage device 6 and stored in a predetermined area of the RAM 5 and then displayed on the display device 7 and the content of the instruction of the template is adopted. Is displayed (step S31). Here, the displayed templates include those for which the user can correct the instruction content, and the user can select this template and freely set the mute pattern. FIG. 5A shows a certain template selected from a plurality of displayed templates. In this way, instead of displaying the template itself, a condition for selecting the template is used. For example, it is possible to set, for example, the number of locations to be muted and the distribution state (whether there are many in the first half or many in the second half of a bar) and the like, and based on the set conditions, A template may be automatically selected. The adoption rate corresponds to the reverse of the degree of randomness, and is set, for example, in% (complete random is 0% and non-random is 100%).
[0037]
Next, when the user inputs a template (or condition) and an adoption rate, the input is accepted (step S32). The user selects an arbitrary one of the displayed templates or a user-settable one, and selects a switching mode when switching and using the template for each predetermined bar. As a mode of template switching, there is no switching (the same template is repeatedly used), switching and use in the order set by the user, use of randomly switching a plurality of templates selected by the user, and selection of a plurality of templates by the user When the use of the template is finished, a mode such as returning to a certain fixed or randomly selected template in the middle of the template may be considered instead of returning to the beginning.
[0038]
Then, a template and a reference value are generated based on the information received in step S32 (step S33). As described above, when a template that can be set by the user is selected as described above, the template is generated according to the setting state input by the user, and a switching mode other than “no switching” is selected. In this case, a template to be applied to the entire performance data within the expression range input in step S14 of FIG. 3 is generated according to the setting mode. The reference value is generated according to the input adoption rate. As described later, when the generated random number exceeds the reference value, the instruction content of the corresponding position of the template is applied to the performance data of the corresponding position, while the generated random number is equal to or less than the reference value, as described later. Sometimes, the instruction content obtained by inverting the instruction content at the corresponding position of the template is applied to the performance data at the corresponding position. It is assumed that the range of the generated random numbers is, for example, an integer value from 0 to 255 (a value that can be expressed by 8 bits). When the adoption rate is set to 75%, the reference value is 128 × (100−100). 75) / 100-1 = 31. When the reference value is “0”, all the generated random numbers exceed the reference value (strictly, when the random number is “0”, the random number does not exceed the reference value “0”, but it is considered that the random number is exceeded even at this time) Therefore, it is non-random (employment rate = 100%), and when the reference value is “127”, the generated random number exceeds “127” with a probability of １ ／, so it is completely random (employment rate = 0%). . That is, when the adoption rate is in the range of 100 to 0%, the reference value is in the range of 0 to 127.
[0039]
Next, the performance data at the position indicated by the read pointer (not shown) is read, and the position of the performance data from the bar line (the first bar line of the bar including the performance data) is detected (step S34). Is generated (step S35), and when the generated random number exceeds the reference value, the instruction content (information) of the template corresponding to the detected position is read, and the sounding characteristics of the performance data at the detected position are processed with this information. On the other hand, when the generated random number is equal to or smaller than the reference value, the instruction content (information) of the template corresponding to the detected position is read out, and the inverted information is used as the sounding characteristic of the performance data at the detected position. Is processed (step S38). Then, the sound generation characteristic of the processed performance data at the detected position is recorded (step S39), and the processing of steps S34 to S39 is performed for all the performance data (note-on events) (steps S40 → S41 →). After S34), music data is generated according to the corrected performance data (steps S40 → S42).
[0040]
FIGS. 5A and 5B are diagrams for explaining the thinning-out mute processing, wherein FIG. 5A shows a selected template, FIG. 5B shows performance data selected as an expression target, and FIG. , Shows the performance data after expression when the adoption rate is set to 100%, and (d) shows the performance data after expression when the adoption rate is set to 75%.
[0041]
When the adoption rate is set to 100%, that is, when the reference value is set to “0”, as described above, all the generated random numbers exceed the reference value, and therefore, as shown in FIG. All the instructions in the template are applied to the corresponding performance data as they are.
[0042]
On the other hand, when the adoption rate is set to 75%, that is, when the reference value is set to “31”, the generated random number exceeds the reference value with a probability of 1− (31 + 1) / 256 = 7/8. As shown in (d), most of the instructions in the template (a) are applied to the corresponding performance data as they are, but a small number of the instructions are inverted and applied to the corresponding performance data.
[0043]
As described above, in the present embodiment, not the instruction content of the template itself, but the instruction content changed in consideration of randomness is applied to the performance data, so that a non-mechanical expression can be added to the performance data. Further, since the degree of randomness is set, the expression of the tendency as intended by the user can be added to the performance data.
[0044]
In the present embodiment, the control according to the random number and the reference value is performed with the same certainty for each of the instruction contents of the template. However, the present invention is not limited to this. May be applied directly to the corresponding performance data without performing control according to the random number and the reference value. FIG. 6 is a diagram showing an example of the template ((a)) in this case and an example of the performance data ((b)) which is given an expression using the template. An arrow in the template in FIG. 9A indicates that the content of the position indication is applied as it is without performing control according to the random number and the reference value. When this template is used, the contents indicated by the arrow are directly applied to the corresponding performance data as shown in FIG. In this way, a random expression can be added to the performance data without impairing the musicality as much as possible by merely adding a function of applying the instruction content to the performance data as it is in the template.
[0045]
Further, in the present embodiment, when the instruction content of the template is applied to the corresponding performance data, regardless of the form of the performance data, the instruction content is changed in consideration of randomness, and then applied. However, the present invention is not limited to this. When the same pattern as the template pattern appears in the performance data, the instruction content of the template is given the highest priority to the performance data as it is, that is, in priority to the control considering randomness. You may make it apply. FIG. 7 is a diagram showing an example of the template ((a)) in this case and an example of the performance data ((c)) in which the expression is applied using the template. Since the pattern of the note sequence of the template of FIG. 11A is the same as the pattern of the note sequence of the second measure of the performance data of FIG. 10B, as shown in FIG. Is directly applied to the second measure of the performance data of FIG. However, since the pattern of the note sequence of the first measure of the performance data of (b) is different from the pattern of the note sequence of the template of (a), control is performed in consideration of randomness. As described above, if a template to be applied with priority given to control considering randomness can be set, an expression corresponding to the user's instinct can be added to the performance data. By registering a large number of such templates, it is possible to give an expression that more strongly reflects the musicality of the user.
[0046]
In the present embodiment, randomness is given to whether the instruction content of the template is adopted as it is or changed and adopted. However, the present invention is not limited to this. You may make it do. Specifically, the total time of the template is set to 100, and the time width in which the instruction content is adopted as it is is determined in consideration of randomness.
[0047]
Further, in the present embodiment, as an example of the expression, when the performance data is created by imitating the chord stroke playing method of a guitar, a part of the performance data is replaced with a mute performance. However, this is merely an example, and the feature of the present invention is to make the application of the reference data random when changing the pronunciation characteristics of the performance data based on some reference data. That is, the degree can be controlled.
[0048]
A storage medium storing a program code of software for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and a computer (or CPU 3 or MPU) of the system or the apparatus stores a program stored in the storage medium. It goes without saying that the object of the present invention is also achieved by reading and executing the code.
[0049]
In this case, the program code itself read from the storage medium implements the novel function of the present invention, and the storage medium storing the program code constitutes the present invention.
[0050]
Examples of a storage medium for supplying the program code include a flexible disk, a hard disk, a magneto-optical disk, a CD-ROM, a CD-R, a CD-RW, a DVD-ROM, a DVD-RAM, a DVD-RW, a DVD + RW, and a magnetic disk. A tape, a nonvolatile memory card, a ROM, or the like can be used. Further, the program code may be supplied from a server computer via a communication network.
[0051]
In addition, the functions of the above-described embodiments are implemented when the computer executes the readout program codes, and the OS or the like running on the computer performs the actual processing based on the instructions of the program codes. It goes without saying that a part or all of the above is performed, and the function of the above-described embodiment is realized by the processing.
[0052]
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 CPU 3 or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.
[0053]
【The invention's effect】
As described above, according to the first or third aspect of the present invention, the degree of randomness is controlled, and the individual sounding data of the performance data for each predetermined element of the processing reference data is controlled at the controlled degree of randomness. The usage mode in the processing of the characteristic is determined, and in the determined usage mode, the corresponding element is used and the sound generation characteristic of the corresponding performance data is processed. It becomes possible to automatically add the expression of the tendency to the performance data.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a performance data processing device according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a procedure of a main routine executed by the performance data processing device of FIG. 1, in particular, a CPU;
FIG. 3 is a flowchart showing a detailed procedure of an operator processing subroutine of FIG. 2;
FIG. 4 is a flowchart showing a detailed procedure of a thinning-out mute processing subroutine in FIG. 3;
FIG. 5 is a diagram for explaining a thinning-out mute process in FIG. 4;
FIG. 6 is a diagram for explaining another expression giving process.
FIG. 7 is a view for explaining still another expression processing.
[Explanation of symbols]
1 operation group (control means, setting means), 3 CPU (generation means, processing means, determination means, control means, generation means, setting means), 4 ROM, 5 RAM (generation means), 6 external storage device ( Generating means), 7 display device, 8 communication interface, 9 sound source circuit, 10 effect circuit, 11 sound system

Claims (3)

Generating means for generating processing reference data;
Processing means for processing individual sounding characteristics of the performance data based on the processing reference data;
Determining means for randomly determining a use mode in the processing means for each predetermined element of the processing reference data;
Control means for controlling the degree of randomness,
The determining means determines the usage mode with the controlled degree of randomness, and the processing means uses the corresponding element in the determined usage mode and changes the sounding characteristic of the corresponding performance data. A performance data processing device characterized by processing. The control unit includes a generation unit that generates a random number within a predetermined range, and a setting unit that arbitrarily enlarges or reduces a partial area within the predetermined range and sets the partial region.
2. The performance according to claim 1, wherein the determining unit determines the use mode according to whether a random number generated by the generating unit is included in an area set by the setting unit. 3. Data processing device. A generation procedure for generating machining reference data;
A processing procedure for processing individual sounding characteristics of the performance data based on the processing reference data;
For each predetermined element of the processing reference data, a determining step of randomly determining a use mode in the processing procedure,
A program for causing a computer to execute a control procedure for controlling the degree of randomness,
In the determining step, the use mode is determined with the controlled degree of randomness,
In the above-mentioned processing procedure, a program is characterized in that a corresponding element is used and a sounding characteristic of the corresponding performance data is processed in a use mode determined by the determining step.

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