JP2005266320A - Program for web site applied to server computer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a program for web sites, which automatically reproduces generated musical sound information in a client terminal. <P>SOLUTION: A server SC executes a UI program in response to the first access from a device ND and transmits a parameter designation form. When parameters are designated, the server SC transmits a form wherein link information for accessing a MIDI generation program and designated parameters are embedded. At this time, a file format of a generation program of link information is described as a MIDI format. The device MD interprets and executes the transmitted form and interprets the generation program of link information as musical sound information and plugs in a prescribed application to a browser program. The device MD acquires MIDI data generated on the basis of link information and utilizes the plugged-in program to automatically reproduce the MIDI data. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a program applied to a server computer that provides predetermined information to a client terminal connected to a network.

  2. Description of the Related Art Conventionally, for example, as shown in Patent Document 1 below, a content generation service system provided by a server is known. In this conventional content generation service system, when a user inputs a parameter from a client terminal, the server generates song data having added value according to the input parameter, and distributes this as content to the client terminal. It has become.

  In the above-described conventional content generation service system, the server generates a content by executing a series of programs according to the parameters input by the user, and provides the content to the client terminal. However, in the client terminal, it may be necessary to manually start an application program for playing content depending on the type and function of a browser program stored in advance or the type of content acquired from the server. . In this case, for example, an apparatus that does not include a keyboard or mouse for inputting characters, such as an electronic music apparatus (particularly, an electronic musical instrument), is inconvenient because the user cannot easily start it.

JP 2002-55679 A

  The present invention has been made to solve the above-described problems, and an object of the present invention is to generate a musical tone information desired by a user and automatically reproduce the generated musical tone information on a client terminal. To provide a program.

  A feature of the present invention is a website program applied to a server computer that provides musical tone information to a client terminal connected to a network, and a parameter related to musical tone information according to access from the client terminal Generating a first form for designating, a second form embedded with parameters designated by the first form and link information for accessing a predetermined storage location of the server computer In response to an access from the client terminal based on the link information embedded in the second form, stored in a predetermined storage position represented by the link information, and a user interface program configured to include The parameters embedded in the second form Lies in the configuration with the tone generation program for generating musical tone information corresponding to the over data. In this case, it is preferable that the musical sound generation program is represented by link information embedded in the second form, and the file format thereof corresponds to the musical sound information.

  According to these, the server computer generates a first form described in, for example, an HTML language by first executing a user interface program out of the website program in response to access from the client terminal. can do. The generated first form is transmitted to the client terminal, and is displayed using, for example, a browser program. When the user specifies parameters related to musical tone information that the user wants to generate based on the display, the server computer The second form in which the link information for accessing the predetermined storage position, that is, the musical tone generation program and the parameter specified by the user is embedded can be generated and transmitted to the client terminal.

  When the client terminal that has received the second form accesses the predetermined storage location, that is, the tone generation program based on the embedded link information, the server computer executes the tone generation program and sets the tone according to the parameters specified by the user. Information can be generated. At this time, since the link information embedded in the second form is embedded so that the file format of the tone generation program corresponds to the tone information, the client terminal that has received the second form is represented by the link information. An application program for interpreting the musical tone generation program as musical tone information and reproducing the musical tone information can be automatically plugged into the browser program. When the musical tone information generated from the server computer is received, the musical tone information can be automatically reproduced using the plug-in application program. Further, by interpreting the musical tone generation program as musical tone information described in, for example, an HTML language, musical tone information can be received and reproduced without depending on the function and type of the browser program.

  Here, the user interface program and the tone generation program may employ a language that can be interpreted and executed on the server computer side as a description language, for example, a PHP (Hypertext Preprocessor) language. Accordingly, the first and second form generation processing and the musical tone information generation processing can be executed by the server computer, so that restrictions on the function and type of the browser program of the client terminal can be eliminated. In addition, since the musical tone information acquired from the server computer can be automatically reproduced, the client terminal is not limited to a personal computer, for example, an electronic musical instrument, a PDA, a mobile phone, etc. that do not have sufficient input means. Can be adopted. As musical tone information, performance data (for example, MIDI data), moving image data, image data (for example, musical score data), chord constituent sound data constituting a chord, and the like can be employed. In this case, by providing an application program that can be plugged into the browser program of the client terminal in advance, the musical tone information can be automatically reproduced.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an electronic music apparatus MD, a personal computer PC, and a server computer SC that are communicably connected to a network NW.

  The electronic music apparatus MD is, for example, an electronic musical instrument, and includes a keyboard 11, a panel operator group 12, and a display 13 as shown in FIG. The keyboard 11 is composed of a plurality of keys as performance operators, and generation and stop of a musical tone signal is instructed by pressing and releasing each key. These key press / release keys are detected by turning on / off a key switch provided corresponding to each key in the detection circuit 14 connected to the bus 20.

  The panel operator group 12 includes a plurality of operators including push buttons provided on the front panel of the electronic music apparatus MD (for example, around the display device 13), and performs various operations of the electronic music apparatus MD. Operated to direct. The operation of the panel operator group 12 is detected by turning on / off an operator switch provided corresponding to each operator in the detection circuit 15 connected to the bus 20. The display 13 is composed of a liquid crystal display or the like, and displays characters, symbols, figures, and the like.

  In addition, a CPU 31, a timer 32, a ROM 33, a RAM 34, an external storage device 35, a sound source circuit 41, an effect circuit 42, and a sound system 43 are connected to the bus 20. The CPU 31, the timer 32, the ROM 33, and the RAM 34 constitute a microcomputer main body, and control various operations of the electronic music apparatus MD by executing programs. The ROM 33 has a system program, a part of programs for realizing various functions of the electronic music apparatus MD, a program on the electronic music apparatus side shown in FIG. 5 to be described later, style data used for playing musical sounds, and music. Data, timbre data, effect data, registration data, and the like are stored.

  The external storage device 35 includes various recording media such as a hard disk HD pre-installed in the electronic music device MD, a compact disc CD that can be mounted on the electronic music device MD, a digital multipurpose disc DVD, a flexible disc FD, and the like. Drive unit for storing and reading a large amount of data and programs. These recording media store various types of programs (for example, browser programs and application programs for reproducing MIDI data), style data, music data, timbre data, effect data, registration data, and the like. Yes.

  The tone generator 41 forms a musical sound signal based on performance information (key-on signal, key-off signal, note number, velocity, etc.) from the CPU 31. The musical tone element including the tone color of the musical tone signal formed by the tone generator circuit 41 is controlled by the CPU 31 under the control of the CPU 31, and the musical tone element control including the tone color parameter supplied from the ROM 33 or the external storage device 35 (in some cases, the RAM 34). Controlled by parameters.

  The effect circuit 42 gives various musical effects such as reverb and chorus to the musical sound signal generated by the sound source circuit 41. The effect circuit 42 is also controlled by various effect parameters supplied from the ROM 33 or the external storage device 35 (in some cases, the RAM 34) under the control of the CPU 31. The musical tone signal to which the effect is applied by the effect circuit 42 is supplied to the sound system 43. The sound system 43 includes an amplifier, a speaker, and the like, and generates a musical sound corresponding to the supplied musical sound signal.

  A MIDI interface circuit 51 is connected to the bus 20. The MIDI interface circuit 51 inputs various data such as automatic performance data and musical tone control data and various programs from the MIDI device 52. Further, a communication interface circuit 53 is also connected to the bus 20. The communication interface circuit 53 can be connected to the server computer SC via the network NW, and can exchange various programs and data between the electronic music apparatus MD and the server computer SC.

  The personal computer PC is configured by omitting the keyboard 11, the panel operator group 12 and the detection circuits 14 and 15 of the electronic music apparatus MD shown in FIG. The other components function in the same manner as the components of the electronic music apparatus MD, so that the display 113, display control circuit 116, bus 120, CPU 131, timer 132, ROM 133, RAM 134, external storage device 135, tone generator circuit 141, the effect circuit 142, the sound system 143, the MIDI interface 151, the MIDI device 152, and the interface circuit 153 are denoted by reference numerals, and detailed descriptions of these components are omitted. Further, the personal computer PC is provided with a keyboard 112a, a mouse 112b, and a detection circuit 115 as indicated by broken lines in FIG. The keyboard 112a is composed of a plurality of operators, and is detected by turning on / off an operator switch provided corresponding to each operator in the detection circuit 115 connected to the bus 120. The mouse 112b is connected to the detection circuit 115 via the keyboard 112a, and the detection circuit 115 also detects the movement direction, the movement amount, and the presence / absence of a click of the mouse 112b.

  As shown in the block diagram of FIG. 3, the server computer SC includes a CPU 201, a timer 202, a ROM 203, a RAM 204, and an external storage device 205 connected to the bus 200. The CPU 201 executes a program and comprehensively controls various operations of the server computer SC. The timer 202 measures time. The ROM 203 stores in advance a system program, some programs for realizing various functions of the server computer SC, various data, and the like. The RAM 204 temporarily stores programs and files used when the programs are executed.

  The external storage device 205 includes various storage media such as a hard disk HD, a compact disk CD, and a flexible disk FD, and a drive unit for each storage medium. These recording media can store and read a large amount of data and programs, and store various programs including a server computer side program shown in FIG. 5 and a PHP program for interpreting and executing the PHP language. . Here, the PHP language is a script language in which a predetermined code is described in an HTML file, and the server computer SC uses the PHP program to interpret various operations by interpreting the HTML file including the PHP language. It can be performed. The hard disk HD stores MIDI data used to automatically generate musical tone information (MIDI data) by reflecting a parameter specified by the user by executing a MIDI generation program described later. A MIDI database 206 is constructed.

  In addition, a communication interface circuit 207 (hereinafter referred to as a communication I / F 207) is also connected to the bus 200. This communication I / F 207 is connected to the network NW, and enables communication between the server computer SC and the electronic music apparatus MD and personal computer PC.

  Next, the operation of the embodiment configured as described above will be described. In this embodiment, as schematically shown in FIG. 4, the user of the electronic music apparatus MD or personal computer PC executes the browser program to access the server computer SC. When acquiring musical tone information (MIDI data), the electronic music apparatus MD and the personal computer PC each execute a program having the same function to acquire musical tone information. Therefore, in the following description, these electronic music apparatus MD and personal computer PC will be collectively described as a client terminal. The server computer SC includes a user interface program (hereinafter referred to as a UI program) that creates a parameter designation form to be transmitted to the client terminal, and a MIDI generation program that generates predetermined MIDI data as musical tone information in accordance with the designated parameters. The WEB site program is executed. Here, the UI program and the MIDI generation program are described in the PHP language, and the WEB server program of the server computer SC interprets these programs described in the PHP language by using the installed PHP program. And execute.

  This will be described in detail with reference to the flowchart shown in FIG. First, the user activates the browser program of the client terminal and accesses the server computer SC in step D10. The server computer SC starts execution of the UI program, and determines whether or not the access from the client terminal is the first time in step S10. If the access is the first time, the server computer SC determines “Yes” and step S12. The parameter specification form as the first form is generated and transmitted to the client terminal. Here, as shown in part of FIG. 6, the UI program is described in the PHP language at the portion starting with “<?” And ending with “?>”, And the portions other than those described in the PHP language are Are described in the HTML format. For this reason, the server computer SC executes the PHP program for the part described in the PHP language, and adds the result of the execution to the part described in the HTML format, so that a part is schematically shown in FIG. A parameter specification form (HTML format) is generated. In the parameter specification form generated by the first access, the line (A) shown in FIG. 8 is omitted and generated.

  When this parameter specification form is transmitted, the client terminal interprets the HTML of the transmitted parameter specification form in step D11, and displays the parameter specification form as shown in FIG. 7A, for example. Displayed on the units 13 and 113. The user designates “root” and “code type” as parameters from the pull-down menu using the panel operator group 12, the keyboard 112 or the mouse 112a in accordance with the displayed parameter designation form, and selects “Check!” Manipulate. Here, the “Check!” Button includes parameters designated by the parameter designation form for the server computer SC (the “root” and “code type”), as indicated by the (*) line in FIG. The function “submit” is transmitted. Then, when the designated parameter is transmitted, the server computer SC executes a MIDI generation program to be described later, thereby executing a chord constituent sound representing the constituent sound of the chord specified by the “root” and the “code type”. Data (MIDI data) is generated. On the other hand, when the client terminal obtains the generated chord component sound data (MIDI data), the tone generator circuits 41 and 141, the effect circuits 42 and 142, and the sound systems 43 and 143 are used to generate the chord component sound data (MIDI data). ) Is automatically played and pronounced. For this reason, the user can confirm the chord in which the parameter designated by the user is reflected.

  More specifically, the client terminal determines whether or not a parameter is specified by the user in step D12. If the parameter is specified, the client terminal determines “Yes” and the parameter specified in step D13. Are temporarily stored in the RAMs 34 and 134. If no parameter is specified, that is, if the parameter of the parameter specification form that is initially set by the user is not changed, the determination is “No” and the process proceeds to step D14. In step D14, it is determined whether or not the “Check!” Button has been operated, that is, whether or not parameter transmission has been instructed. If it has been operated, “Yes” is determined, and the RAMs 34 and 134 are temporarily stored in step D15. To the server computer SC. On the other hand, if the “Check!” Button is not operated, it is determined as “No”, and the processes after Step D12 are repeatedly executed until the “Check!” Button is operated.

  The server computer SC receives the parameter transmitted by the transmission process of step D15, and executes step S11 based on the “No” determination in step S10. In step S11, the server computer SC reflects the parameter transmitted to the parameter designation form, and as a second form in which link information to the MIDI generation program stored in a predetermined storage location of the server computer SC is embedded. Generate a parameter specification form. As shown in FIG. 8, the generated parameter designation form is created by adding the line (A) to the parameter designation form transmitted at the first access. The added line (A) describes link information “midigen.php” for accessing the MIDI generation program and the parameter “key = 60.64.67.72” specified by the user. The program file format is "audio / midi". In step S12, the parameter specification form with the line (A) added is transmitted to the client terminal. The client terminal automatically accesses the MIDI generation program of the server computer SC in step D11. Play the received MIDI data.

  That is, the client terminal sequentially interprets each HTML line of the received parameter specification form, and executes, for example, “update” or “reload”. At this time, since the lines other than the line (A) are substantially the same as the parameter specification form acquired at the time of the first access, the parameter specification forms displayed on the display units 13 and 113 are displayed in the same manner. In addition, for example, a character string such as “selected” can be added to the designated one of “root” and “code type” so that the parameter designated by the user can be confirmed on the previous parameter designation form. For example, the link destination indicating the keyboard image may be changed from a key-off image to a link destination indicating the key-on image. On the other hand, since the newly added line (A) has the file format “audio / midi”, the client terminal interprets the line (A) as an HTML syntax in which MIDI data is embedded. Then, an application program necessary for reproducing the MIDI data is plugged in. Then, the MIDI generation program is accessed based on the embedded link information. In this access, the client terminal transmits again the parameters temporarily stored in the RAMs 34 and 134 in step D13.

  The execution of the MIDI generation program is started in step S50, and in step S51, MIDI data is generated based on the parameters transmitted in step D11. That is, the CPU 201 of the server computer SC uses the data stored in the MIDI database 206 and uses the MIDI data representing the chord constituent sound reflecting the parameter specified by the user (from the chord constituent sound in the format of SMF or the like). Is generated). More specifically, the CPU 201 modifies a part of the MIDI data in the MIDI database 206 according to the designated parameter, and generates MIDI data reflecting the designated parameter. In step S52, the generated MIDI data is transmitted to the client terminal.

  In step D11, the client terminal receives the MIDI data transmitted from the server computer SC and automatically reproduces the received MIDI data using an application program plugged in. At this time, since the MIDI data can be configured to include score data as image data, the user is displayed on the display screens of the display units 13 and 113 which are changed as shown in FIG. 7B. By operating the “display” button, a chord score can be displayed. In addition, the user can record received MIDI data by operating a “record” button as necessary.

  As can be understood from the above description, the server computer SC executes the UI program and the MIDI generation program described in the PHP language, thereby executing the link information embedding process and the MIDI data for the parameter specification form described in the HTML format. Generation processing and the like can be executed. Also, if the browser program of the client terminal can simply interpret an HTML file, it can automatically plug in an application program for reproducing MIDI data, that is, data for generating sound, and it is very easy to do MIDI. Data can be acquired and played back. Of the above-described processing, transmission / reception of various data is performed using a WEB server program (server computer SC side) and a browser program (client terminal side).

  In the above embodiment, the route and chord type are designated on the parameter designation form. However, a parameter for designating the MIDI channel of the music selected by the user is adopted instead of the parameter representing the route and chord type. It is also possible to carry out the modification by designating the same MIDI channel. More specifically, the client terminal executes a browser program, first accesses the server computer SC in step D10, and receives a parameter designation form as a first form in step D11. At the same time, it is displayed on the display units 13 and 113. Then, as shown in FIG. 9A, the user designates one piece of music from a plurality of pieces according to the parameter designation form, and uses a key and a MIDI channel (for example, a melody part or accompaniment part) as parameters. If it is designated and the “play” button is operated, steps D12 to D15 are executed, and the designated parameters are transmitted to the server computer SC. In FIG. 9A, MIDI channel 1 (for example, melody part) is designated by the user.

  By executing the UI program, the server computer SC reflects the parameters transmitted to the parameter specification form in step S11, and displays a parameter specification form as a second form in which link information to the MIDI generation program is embedded. The created parameter designation form is transmitted in step S12. In the client terminal, in step D11, an application program necessary for reproducing the MIDI data is plugged in, and the MIDI generation program of the server computer SC is accessed based on the embedded link information. In response to this access, the server computer SC executes steps D50 to D53 of the MIDI generation program, and the performance as musical tone information representing the melody part of the MIDI channel 1 with the specified key for the music specified by the user. Data (MIDI data) is generated and transmitted.

  The client terminal receives the transmitted performance data (MIDI data) and automatically reproduces the received performance data (MIDI data) using an application program plugged in. Even in this case, since the MIDI data can be configured to include score data as image data, the user changes the display screens of the display units 13 and 113 as shown in FIG. 9B. By operating the displayed “Display” button, the score of the designated MIDI channel can be displayed. In this modification, since MIDI channel 1 is selected by the user, the score of MIDI channel 1 (for example, melody part) is displayed in FIG. 9B. In addition, the user can perform recording processing of received performance data (MIDI data) by operating a “record” button as necessary.

  As can be understood from the above description, also in this modification, performance data in MIDI format reflecting keys and channels as parameters designated by the user can be generated, as in the above embodiment. Further, the browser program can interpret the HTML file, automatically acquire the performance data in the MIDI format, and plug in an application program for reproducing the performance data. For this reason, the effect similar to the said embodiment can be anticipated.

  In the above embodiment, parameters that represent preset chords and music are specified. However, for chords and music that are input (played) by the user, the same parameters as in the above embodiment are used. It is also possible to carry out modification by designating and generating MIDI data reflecting the same parameters. Specifically, this modification example starts the execution of the UI program in response to the access from the client terminal. Then, if the access from the client terminal is the first time from the determination process in step S10, as shown in FIG. 10A, a parameter specification form as a first form capable of recording the user's performance is transmitted. To do. This parameter designation form is described mainly in the HTML language, and the portion for recording the performance of the user may be described using a script language such as JavaScript (Java is a registered trademark).

  In step D11, the client terminal receives the transmitted parameter designation form and displays it on the screens of the display units 13 and 113. Thus, after the user operates the “record start” button according to the displayed parameter designation form, the user plays the music using the keyboard 11 as a performance operator, or uses the keyboard 112 or the mouse 112b to play the music. Enter the performance data that you want to represent. Then, by operating the “recording stop” button, performance data representing the performance of the user is temporarily recorded. Thereafter, if the user designates a timbre as a parameter and the “play” button has been operated, the client terminal performs the processing of steps D12 to D15, and the client terminal temporarily stores the performance data (operation contents of the performance operator) and The designated parameter is transmitted to the server computer SC.

  As described above, when the performance data (operation contents of the performance operator), the designated parameter and the information indicating the reproduction instruction are transmitted, the server computer SC reflects the performance data and the designated parameter in step S11. In addition, a parameter specification form as a second form in which link information is embedded is created and transmitted to the client terminal in step S12. In the client terminal, in step D11, an application program necessary for reproducing the MIDI data is plugged in, and the MIDI generation program of the server computer SC is accessed based on the embedded link information. In response to this access, the server computer SC executes steps D50 to D53 of the MIDI generation program, and the performance data (MIDI data) as the musical tone information reflecting the specified tone color regarding the performance data played or input by the user. ) Is generated and sent.

  The client terminal receives the transmitted performance data (MIDI data) and automatically reproduces the received performance data (MIDI data) using an application program plugged in. Even in this case, since the MIDI data can be configured to include score data as image data, the user can change the display screen of the display units 13 and 113 as shown in FIG. By operating the displayed “display” button, the musical score of the user's performance can be displayed. Further, the user can record the received performance data by operating a “record” button as necessary.

  As can be understood from the above description, in this modified example, the performance data in the MIDI format reflecting the timbre as the parameter specified by the user is generated for the performance data performed by the user, as in the above embodiment. can do. Further, the browser program can interpret the HTML file, automatically acquire the performance data in the MIDI format, and plug in an application program for reproducing the performance data. For this reason, the effect similar to the said embodiment can be anticipated.

  Furthermore, in the above embodiment, the example in which the present invention is applied to the electronic music apparatus MD having the form of an electronic musical instrument having the keyboard 11 as a performance operator has been described. However, the present invention includes a browser program and an external device. As long as the electronic musical instrument can communicate with the electronic musical instrument, it can also be applied to an electronic music apparatus having various electronic musical instrument forms including touch plates, push buttons, strings, and the like as performance operators. Moreover, even if it does not have the form of the electronic musical instrument provided with a performance operator, the sequencer of the electronic music apparatus which generates a musical tone signal and communicates with the outside and acquires musical tone information on the condition that a browser program is provided (Automatic performance device), sound source, mixer, effector, recorder, computer device can be widely applied.

  Furthermore, in carrying out the present invention, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the object of the present invention.

1 is a schematic block diagram showing a network to which an electronic music apparatus, a personal computer, and a server computer according to an embodiment of the present invention are connected. It is a schematic block diagram of the electronic music apparatus and personal computer which concern on embodiment of this invention shown in FIG. It is a schematic block diagram of the server computer which concerns on embodiment of this invention shown in FIG. It is the schematic for demonstrating the program processing between the client terminal and server computer which concern on embodiment of this invention. It is a flowchart which shows the program for websites concerning embodiment of this invention. It is a figure for demonstrating the UI program for producing | generating a parameter designation | designated form. (A), (b) is a figure for demonstrating the example of a display of a display. It is a figure for demonstrating the parameter designation | designated form transmitted after the first access and after a parameter is designated. It is a figure for demonstrating the parameter designation | designated form in the modification of this invention. It is a figure for demonstrating the parameter designation | designated form in the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Keyboard, 12 ... Panel operator group, 13, 113 ... Display, 31, 131 ... CPU, 33, 133 ... ROM, 34, 134 ... RAM, 35, 135 ... External storage device, 41, 141 ... Sound source circuit 42, 142 ... Effect circuit, 51, 151 ... Interface circuit, 201 ... CPU, 203 ... ROM, 204 ... RAM, 205 ... External storage device, 206 ... MIDI database, 207 ... Communication I / F, MD ... Electronic music device PC ... personal computer SC ... server computer NW ... network

Claims (2)

A website program applied to a server computer that provides musical tone information to a client terminal connected to a network,
Generating a first form for designating parameters related to musical tone information in response to access from a client terminal;
A user interface program configured to generate a second form in which parameters specified by the first form and link information for accessing a predetermined storage location of the server computer are embedded;
In response to an access from the client terminal based on the link information embedded in the second form, stored in a predetermined storage position represented by the link information, the parameter embedded in the second form A computer-readable website program characterized by comprising a musical tone generation program for generating corresponding musical tone information. The computer-readable website program according to claim 1,
The musical tone generating program is represented by link information embedded in the second form, and the file format thereof is a computer-readable website program corresponding to the musical tone information.

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