JP5046862B2 - Karaoke system with automatic selection function - Google Patents

Description

  The present invention relates to a karaoke system provided with a battle task song automatic selection function for selecting a task song when performing a song battle based on a singing score.

  In recent years, many karaoke systems are accompanied by a singing scoring function, and services that enable singing competitions that compete for singing ability using this singing scoring function have also appeared. In the singing battle, a task piece is selected from the pieces of music held by the performance terminal of the karaoke system, and a plurality of users sing it to compete for the result of singing. For this reason, it is desirable not to cause unfairness among users when selecting a theme song.

  2. Description of the Related Art Conventionally, various karaoke systems have been proposed to have a scoring function and have a singing battle based on singing scoring, and examples thereof include those disclosed in the following patent documents. In this patent document, with respect to a competitive karaoke system capable of comparing scoring results between karaoke apparatuses, a reproduction apparatus reproduces a song selected by a song selection device from a recording medium on which a plurality of karaoke performances are recorded. When the song corresponding to the performance is sung, the performance signal from the playback device and the audio signal from the microphone are compared, the singing ability of the song is scored based on a predetermined standard, and the score of each other is obtained. It is disclosed to display.

Japanese Patent Application Laid-Open No. 07-210182

  However, it is difficult to determine if the task songs are not the same as a singing match, and when the song songs are the same, the user uses the song selection device as disclosed in the above patent document. Generally, it is left to the discretion of the person who chooses the subject song to select the subject song. There is.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a karaoke system including a battle task song selection function that automatically selects a task song while ensuring fairness of a singing opponent.

  In order to solve the above-mentioned problem, the invention of claim 1 includes a user database in which at least a user's singing history is registered in association with a user ID and a music database in which a predetermined number of music is stored, A karaoke system having an automatic selection function for a song to be played when a song is played based on the scoring from the song history, a user ID acquisition unit, a song history acquisition unit, and a song by user It has a history management table creating means and a task song specifying means, the user ID acquisition unit acquires a user ID of a user of system login, and the singing history acquisition means has the acquired user IDs. Based on the user database, the song history song is acquired from the user database, and the user-specific song history management table creating means is configured for each acquired user ID. A user-specific song history management table is created based on the songs in the song history, and the task song identification means is based on the created user-specific song history management table, and all user IDs to be sung against The common music associated with is identified as the task music.

In the inventions of claims 2 to 4, "the singing frequency is attached to the song history songs registered in the user database, and the user-specific song history management table creating means is the user-specific song history management. In creating the table, the singing frequency is attached, and the task song specifying means is configured such that the singing frequency in a preset reference range among the common tunes associated with all the user IDs to be sung against. To identify the tune of
“The number of songs of the task song is set, and the task song specifying means changes the reference range until the number of songs of the set task song is reached”,
“If the subject song is not included in the user-specific song history management table when the subject song selected in the song existing in the user-specific song history management table does not correspond, It is a configuration in which a predetermined number is extracted from the database and specified.

  According to the present invention of claim 1, a user ID is associated with a song sung by a user and registered in the user database as a singing history, and the user database is based on each user ID logged in the system. Based on the user-specific song history management table created by acquiring the songs of the song history, the common song associated with all user IDs to be sung is identified as the subject song. Since all of the users who are the subject of the singing battle are selected the task music with singing experience, the task music can be automatically selected while ensuring the fairness of the singing opponent.

  According to the invention of claim 2, the singing frequency is attached to the singing history song registered in the user database, the singing frequency is added to the singing history management table according to the user, and the subject song is the subject of the singing competition. Of common songs associated with all user IDs, by specifying songs with a singing frequency within a preset reference range, songs such as when singing by mistake or when singing satisfactorily cannot be performed. As a result, it is possible to automatically select the task song while ensuring the fairness of the singing opponent.

  According to the invention of claim 3, by setting the number of songs of the subject song and changing the reference range until the subject song number is reached, the songs existing in the user-specific singing history management table are set to the subject song number. It is possible to perform processing to be selected according to the selection.

  According to the invention of claim 4, in the subject song specifying means, when the subject song selected for the song existing in the user-specific song history management table does not correspond, other than the song existing in the user-specific song history management table By extracting a predetermined number of songs from the music database and specifying them, any user who is the subject of the singing battle will select a song that the user has not experienced singing, and this is also the fairness of the user who is the subject of the singing battle It can be selected automatically with security.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a system configuration diagram of a karaoke system according to the present invention. FIG. 1A is a schematic diagram of a network when this system is configured using a communication network, FIG. 1B is a schematic block diagram of a host device, and FIG. 1C is a song provided in a user database. It is explanatory drawing of a log | history.

  In FIG. 1A, the host device 11 manages a predetermined number of karaoke performance terminals 13 (13A to 13N) via the communication network 12 as a part of the karaoke system, It is connected so that it can be exchanged freely. The communication network 12 includes, for example, a general public telephone line, an ADSL using the same, an optical communication line, the Internet, and a LAN, and a VPN constructed on the Internet is preferable.

  As shown in FIG. 1B, the host device 11 includes at least a transmission / reception unit 21, a control unit 22, and a user database (DB) 23. The user DB 23 includes basic user information and a singing history. . The transmission / reception means 21 is, for example, a physical communication circuit or platform for consistency with the communication system of the communication network 12 in order to perform communication (data exchange) with each karaoke performance terminal 13 (13A to 13N). It is configured by software such as.

  The control means 22 controls the host device 11 in an integrated manner, and is a physical CPU, for example, and performs algorithm processing of a program stored in a ROM (not shown). Here, when user information is requested from a predetermined karaoke performance terminal 13 on the basis of the user ID, at least the basic as shown in FIG. 1C associated with the user ID from the user DB 23. Information and singing history are extracted and sent to the karaoke performance terminal 13.

  The user DB 23 is a database in which predetermined information is registered for each user managed by the user ID. In association with the user ID, for example, at least an image file name such as a nickname or a registrant's face photo is stored. In the singing history, as shown in FIG. 1C, the sung music and the singing frequency for each music are stored for each user ID.

  Then, in FIG. 2, the block block diagram of the karaoke performance terminal in the karaoke system of this invention is shown. In FIG. 2, the karaoke performance terminal 13 includes a display unit 32, a mixing amplifier 33, a microphone 34, and a speaker 35 that are externally connected to a karaoke performance device 31 as a main device by wire or wirelessly. A remote input / output terminal 36 is connected by wire or wireless. The remote input / output terminal 36 will be described with reference to FIG.

  The display unit 32 displays normal music selection display, video during karaoke performance, and lyrics telop. For example, a liquid crystal display (LCD), a plasma display (PDP), and other various displays can be employed. The mixing amplifier 33 mixes the performance data sent from the karaoke performance device 31 and the audio signal from the microphone 34, amplifies them, and outputs them from the speaker 35.

  The karaoke performance device 31 includes a bus 41, a central control unit 42, a ROM 43, a RAM 44, a music DB 45, a video DB 46, a reproduction control unit 47, a music music output unit 48, an A / D conversion unit 49, a scoring processing means 50, and a transmission / reception unit. 51A and 51B are provided as appropriate. In addition, the RAM 44 has regions for the task song storage unit 52 and the performance log storage unit 53. In addition, even if it is an element part which is not directly related to the summary of this invention about each said structure, in order to show that most can be applied also in the conventional karaoke apparatus, the whole apparatus is demonstrated.

  The central control unit 42 is a physical CPU that performs overall processing control of the system, and performs algorithm processing based on a program stored in the ROM 43. The RAM 44 serves as a work area for developing and executing the various programs in addition to the storage areas of the task song storage section 52 and the performance log storage section 53 described later. It is a concept that includes a case where it is configured by a memory and is virtually built on a hard disk.

  The music DB 45 has a music table in which music IDs, music names, and artist names are associated with each other, and performance data (MIDI data) and lyrics telop data of karaoke music in a predetermined data format managed by the music ID are synchronized. The music data (file) is a database in which the music code is stored as a file name, and is associated with allocation data for assigning a predetermined number of scene videos stored in the video DB 46 for displaying the background video for each song. . The video DB 46 is a database that stores a predetermined number of scene video data for displaying a background video. The music DB 45 and the video DB 46 may be provided not in the karaoke performance device 31 but in the host device 11.

  The playback control unit 47 synchronizes a predetermined number of scene video data extracted from the video DB 46 and lyrics telop data (lyric character data) extracted from the music DB 45 with the music ID during performance, with the performance data of the music. This is an electronic circuit that outputs to the display unit 32. The music tune output unit 48 is an electronic circuit that digitally reproduces performance data extracted from the music DB 45 by the music ID, converts it to analog, and outputs it to the mixing amplifier 33.

  The scoring means 50 is a program for calculating a singing score by singing a predetermined singing section of the music based on the input singing voice when singing an arbitrary music. Here, the singing section means a unit of one phrase, a unit of several phrases, or a predetermined number of lyrics characters including one character of lyrics, and can be arbitrarily set. For example, a scoring table is provided, and the pitch reference condition of the main melody of the music digitally reproduced by the music song output unit 48 based on the selected song source data and the song data input from the microphone 34 are converted into the A / D conversion unit 49. Compare the singing pitch extracted from the digital singing data digitally converted in step with reference to the above scoring table, for example, as a score of the comparison result for each section of each measure, for example, to obtain a scoring result It is.

The transmission / reception unit 51A is used to exchange data with the remote input / output terminal 36 using a wired system or a wireless system (such as an IR system or a Bluetooth (registered trademark) mechanism piconet connection system). Electronic circuit and program. The transmission / reception unit 51B is for exchanging data with the host device 11 via the communication network 12, and is configured by software such as a physical communication circuit or a platform for consistency with the communication method. It is composed. A remote input / output terminal 36, which will be described later, can exchange data with the host device 11 via the transmission / reception units 51A and 51B.

  The task song storage unit 52 formed in the RAM 44 is a data storage area for storing the task song specified by the remote input / output terminal 36, and the performance log storage unit 53 is a user (user ID). This is a storage area in which the music ID sung by the karaoke performance device 31 is stored in the performance log storage unit 53 in association with the user ID. The performance log stored in the performance log storage unit 53 is sent to the host device 11 by the central control unit 42 as the performance log data when logging out, for example, and is sent from the karaoke performance device 31 in the host device 11. The user DB 23 is updated by adding the song ID and the singing frequency of each song ID based on the performance log data.

  Although not shown, the karaoke performance device 31 is used for directly inputting the music code of the music selected by the user, buttons and knobs for making various adjustments to the tempo of the performance music and the singing voice. An operation panel directly connected to an electronic element such as a variable resistor is also connected. By the way, when applying the karaoke performance terminal 13 as a stand-alone karaoke system, it can be realized by providing the user DB 23 of the host device 11.

  Next, FIG. 3 shows a block diagram of a remote input / output terminal of the karaoke performance terminal in FIG. 3, the remote input / output terminal 36 includes a bus 61, a terminal control unit 62, a ROM 63, a RAM 64, an input / output control unit 65, a terminal display unit 66, a music search / selection means 67, a user ID acquisition unit 68, and a singing history acquisition. User information acquisition means 69 comprising means 70, user-specific singing history management table creation means 71, task song identification means 72, and terminal transmission / reception unit 73 are provided as appropriate.

  In addition, the RAM 64 includes storage areas for a user-specific information storage unit 74 and a user-specific singing history management table 76 that include a storage area for a song history piece 75 associated with a predetermined user ID. Further, the task song specifying means 72 can set a reference range 77 and a task song number 78.

  The terminal control unit 62 is a physical CPU that performs overall process control of the remote input / output terminal 36, and performs algorithm processing based on a program stored in the ROM 63. The RAM 64 serves as a work area for developing and executing the various programs in addition to forming a storage area for the user-specific information storage unit 74. It is a concept that includes the case of being built on a hard disk.

  The terminal display unit 66 has a liquid crystal display (LCD) and a touch sensor stacked for input and output, and can input data such as music selection by the touch sensor corresponding to the displayed icon or the like. The input / output control section 65 has a GUI user interface function, and the input / output control section 65 outputs display data to the terminal display section 66 to display a music search screen and the like, and an electronic circuit and a program for inputting data using the GUI It is. The music search / selection means 67 is a program that allows the user to search for music by the user interface function.

  The user ID acquisition unit 68 is an electronic circuit and program for acquiring a user ID from an IC card or the like when an IC card or the like possessed by a user login request is presented. The user ID acquisition unit 68 may be provided in the karaoke performance device 31.

  The user information acquisition unit 69 (singing history acquisition unit 70) is based on the user ID acquired by the user ID acquisition unit 68, and the terminal transmission / reception unit 73 (to be described later) transmits / receives 51A and 51B of the karaoke performance apparatus 31 and communication. A program that acquires user information together with the song history from the user DB 23 of the host device 11 via the network 12 and stores the information in the user-specific information storage unit 74 (song history song number 75) of the RAM 64 in association with the user ID. It is.

  The user information is, for example, singing history music acquired by the singing history acquisition means 70 in addition to user information such as a nickname and an image (face photo, etc.) shown in FIG. It is information on the song history song including, for example, the singing frequency, associated with the user ID. Information on the song history piece acquired from the user DB 23 of the host device 11 is stored in the storage area of the song history piece 74 provided in the user-specific information storage unit 75 of the RAM 64.

  The user-specific singing history management table creating means 71 creates a table for managing the singing history for each user based on the singing history of the singing history for each acquired user ID, and the singing history for each user in the RAM 64. This is a program stored in the storage area of the management table 76. The task song identification means 72 is a program that identifies, as a task song, a common song associated with all user IDs to be sung against based on the user-specific song history management table 76. The reference range 77 preset for the singing frequency of the song in the singing history is used as appropriate (described in FIG. 7), and the task song number 78 for presetting the number of songs when selecting the task song is used as appropriate. (Described with reference to FIGS. 8 and 9). The reference range 77 and the number of assignment songs 78 may be set in advance in the assignment song specifying means 72 of the remote input / output terminal 36, or may be set as appropriate by the user.

  The terminal transmission / reception unit 73 is used to exchange data with the karaoke performance device 31 (transmission / reception unit 51A) using a wired method or a wireless method (such as an IR method or a piconet connection method of a Bluetooth mechanism). And an electronic circuit and a program therefor.

  FIG. 4 shows a process flowchart for creating a user-specific singing history management table in the remote input / output terminal of FIG. 4A, first, a predetermined user presents an IC card or the like possessed by the user to the user ID acquisition unit 68 of the remote input / output terminal 36 as a log-in request to the karaoke performance device 31. The user ID acquisition unit 68 acquires a user ID from the IC card or the like, and based on the acquired user ID, the user information acquisition unit 69 (singing history acquisition unit 70) It connects with the communication network 12 via the transmission / reception parts 51A and 51B of the karaoke performance device 31, and requests user information including a singing history corresponding to the user ID from the host device 11 (step (S) 1).

  When the user information acquisition unit 69 acquires user information including a nickname, an image (face photo, etc.) and a singing history of the corresponding user ID extracted from the user DB 23 shown in FIG. Then, the information is stored in the user-specific information storage unit 74 of the RAM 64, and on the other hand, the song information of the acquired song history is stored in the song history song 75 (S2). Then, in the song history management table creation means 71 for each user, as shown in FIG. 4 (B), from the song history for each user stored in the song history song 75 of the user-specific information storage unit 74 in the RAM 64. A table for managing the songs in the song history for each user is created and stored in the storage area of the user-specific song history management table 76 in the RAM 64 (S3).

  These are repeated in response to login requests of all users used in the group (S4). Here, user A (for example, user ID: ****** A), user B (for example, user ID: ****** B), user C (for example, use) A case will be described where the user ID: ****** C) logs in.

  Next, FIG. 5 shows a processing flowchart of the first embodiment of automatic selection of the competition task song in the karaoke performance terminal of FIGS. 2 and 3, and FIG. 6 shows an explanatory diagram of the selection of the competition task song in FIG. FIG. 7 is an explanatory diagram of the task song automatic selection in FIG.

  In this embodiment, “3 to 15 times” is set in advance in the reference range 77 of the singing history number of the singing history tune as a condition for selecting the subject song in the subject song specifying means 72, It is assumed that the number of songs (unlimited (eg, “00”) is set in advance.

  In FIG. 5, for example, when a predetermined user performs an operation of selecting music from an initial screen (not shown), the terminal control unit 62 causes the terminal display unit 66 to display a music selection screen as shown in FIG. When there is an input for selection of the competition task song display from the song selection screen (S11), the task song identification means 72 refers to the created user-specific song history management table 76 and all users who are the subject of the song competition. A predetermined number of music pieces common to the singing histories are extracted (S12). For example, as shown in FIG. 7A, three song IDs (****** 2, ******) are common to all of the song history songs of the users A, B, and C as shown in FIG. 4, ****** 7) is extracted.

  In this stage, for example, when the reference range 77 is set to “one or more times” and the number of task songs 78 is set to “00”, all three songs are specified. In that sense, in such a condition, it is sufficient to specify all the common songs among the songs sung by each user even once, and the reference range 77 and the number of task songs 78 for the singing frequency are unnecessary. Is something that can be done.

  As described above, since the reference range 77 of the singing frequency is “3 to 15 times” (the number of assignment songs is unlimited), the condition for selecting the assignment song is the total of the extracted songs included in the condition. A predetermined number of common songs existing in the singing history of all users A, B, and C are identified (S13). In the example of FIG. 7A, two song IDs (****** 2, ****** 7) are specified.

  And the identified subject music is transmitted to the karaoke performance apparatus 31 via the terminal transmission / reception part 73 (S14). The karaoke performance device 31 registers the received task song in the task song storage unit 52 of the RAM 44, displays the task song on the display unit 32, sequentially extracts the task song from the song DB 45, and starts playing. For example, when “1 or more times” is set in the reference range 77 and “00” is set in the number of task songs 78 as “unlimited”, as shown in FIG. The song title, artist name, song ID, etc. are displayed as the battle task song. As shown in FIG. 7C, when the song selection criterion is “3 to 15 times” (the number of song assignments is unlimited) as shown above, the song ID ( Two pieces of music (music name, etc.) are displayed on the display unit 32. ********* 2, ********* 7).

  The music displayed on the display unit 32 is played repeatedly (three times here) according to the number of opponents (here, three users A to C), and each player sings himself / herself, by the singing scoring means. Competing users will be competed according to the scoring results.

  In this way, since all of the users who will be singing battles will select the task tunes that they have experienced in singing, the task tunes can be automatically selected while ensuring the fairness of the singers. is there. In addition, since the reference range is set, music that has sung experience among fighting users or music that has extremely little singing experience is excluded, so it is possible to select automatically with more fairness. It can be done. By the way, for example, if the reference range 77 is set to “2 times” or “3 times” at the minimum, songs such as when singing mistakenly or when singing is not satisfactory are excluded. The task song can be automatically selected while further ensuring the fairness of the singing opponent.

  Next, FIG. 8 shows a processing flowchart of the second embodiment of automatic selection of a battle task song in the karaoke performance terminal shown in FIGS. In FIG. 8A, similarly to the above, when the terminal control unit 62 causes the terminal display unit 66 to display a music selection screen as shown in FIG. (S21) In the subject song specifying means 72, with reference to the created user-specific song history management table 76, common songs existing in the song history of all users are extracted, and the extracted songs Among them, a predetermined number (three pieces) of music included in the reference range in which the singing frequency is set is specified as shown in FIG. 8B, for example (S22).

  Therefore, in contrast between the specified number of songs and the set number of task songs 78 (S23), if the number of specified songs is larger than the number of task songs 78, the singing frequency attached to the specified song is determined. The reference range 77 is narrowed and changed by a predetermined step, and a predetermined number of songs included in the reference range are specified (S24). If the specified number of songs is still larger than the number of task songs 78 (S25), the reference range is further narrowed and changed by a predetermined step, and a predetermined number of songs included in the reference range are specified and repeated until they are equal. (S24, S25).

  For example, when the number of task songs 78 is set to “1 song” and the reference range 77 is set to “3 to 15 times”, the singing history of the users A, B, and C shown in FIG. Since two song IDs (****** 2, ****** 7) are identified as songs common to all of the songs, and are not equal to the number of subject songs 78 (1 song), By narrowing and changing the reference range 77 to, for example, “5 to 10 times”, one song ID (****** 7) is specified and becomes equal to the number of task songs 78.

  On the other hand, in the comparison between the specified number of songs and the set number of task songs 78 (S23), if the number of specified songs is smaller than the number of task songs 78, the singing frequency associated with the specified song is determined. The reference range 77 is expanded by a predetermined step and changed, and a predetermined number of songs included in the reference range are specified (S26). If the specified number of songs is still smaller than the number of task songs 78 (S27), the reference range is further narrowed and changed by a predetermined step, and a predetermined number of songs included in the reference range are specified and repeated until they are equal. (S26, S27).

  For example, when the number of assignment songs 78 is set to “2 songs” and the reference range 77 is set to “5 to 10 times”, the singing history of the users A, B, and C shown in FIG. One song ID (******* 7) is specified as a song common to all the songs, and is not equal to the number 78 of the subject songs (2 songs). The song IDs (****** 2, ******** 7) of the two songs are specified by expanding and changing to "-15 times", and equal to the number 78 of the subject songs.

  Then, in S25 and S27, when the specified number of songs and the set number of task songs 78 are equal, the song ID of the specified task song is transmitted to the karaoke performance device 31 (S28). Also, in the comparison between the specified number of songs and the set number of task songs 78 (S23), even when the number of task songs 78 is equal to the number of specified songs (for example, the number of task songs 78 is “3 songs”, the reference When the range 77 is set to “one or more times”, the music IDs (*******, 2, ********, ****** 7) of the three songs shown in FIG. Specified), the song ID of the identified task song is transmitted to the karaoke performance device 31 (S28). The processing in the karaoke performance device 31 is the same as described above.

  Thus, since the reference range is changed until the number of task tunes is reached, it is possible to perform a process of selecting a song existing in the user-specific singing history management table according to the number of task tunes. The reference range may be changed by changing only the upper limit, changing only the lower limit, or changing the upper limit and the lower limit together, and the degree of change is appropriately selected such as one by one or multiple values. Is something that can be done.

  By the way, in each of the above embodiments, if even one task song cannot be specified, the task song specifying means 72 uses, for example, a song DB 45 other than the songs existing in the user-specific song history management table 76. By selecting and specifying a predetermined number, the user who is the subject of the singing battle will select a song that has no singing experience, thereby ensuring the fairness of the user who is the subject of the singing battle. Can be selected automatically.

  The karaoke system provided with the automatic selection function of the competition task music of the present invention can be used in the field of karaoke equipment having the basic functions of karaoke.

It is a system configuration | structure figure of the karaoke system which concerns on this invention. It is a block block diagram of the karaoke performance terminal in the karaoke system of this invention. It is a block block diagram of the remote input / output terminal of the karaoke performance terminal in FIG. 4 is a processing flowchart for creating a user-specific singing history management table in the remote input / output terminal of FIG. 3. It is a process flowchart of 1st Embodiment of the battle | competition subject music automatic selection in the karaoke performance terminal of FIG.2 and FIG.3. It is explanatory drawing of the battle | competition subject music selection in FIG. It is explanatory drawing of the subject music automatic selection in FIG. FIG. 4 is a process flowchart of a second embodiment of automatic selection of a competition task song in the karaoke performance terminal of FIGS. 2 and 3; FIG.

Explanation of symbols

11 Host device 13 Karaoke performance terminal 23 User DB
31 Karaoke performance device 36 Remote input / output terminal 66 Terminal display unit 68 User ID acquisition unit 69 User information acquisition unit 70 Singing history acquisition unit 71 User-specific singing history management table creation unit 72 Subject song identification unit 74 User-specific information Storage unit 76 User-specific singing history management table 77 Reference range 78 Number of songs

Claims (4)

A user database in which at least a user's singing history is registered in association with a user ID and a music database in which a predetermined number of songs are stored are provided, and the song tunes to be played when the singing competition is performed based on a singing score A karaoke system equipped with an automatic selection function for a task assignment song to be selected more automatically,
User ID acquisition unit, singing history acquisition means, user-specific singing history management table creation means and subject song identification means,
The user ID acquisition unit acquires a user ID of a system login user,
The singing history acquisition means acquires the song history song from the user database based on the acquired user IDs,
The user-specific singing history management table creating means creates a user-specific singing history management table based on the singing history of the acquired singing history for each user ID,
The task song identification means identifies, as a task song, a common song associated with all user IDs to be sung against, based on the created user-specific singing history management table.
A karaoke system equipped with an automatic selection function for battle assignments. It is a karaoke system provided with the battle subject music automatic selection function of Claim 1,
The singing frequency is attached to the song history song registered in the user database,
The user-specific singing history management table creation means accompanies the singing frequency in creating the user-specific singing history management table,
The task song identification means identifies a song of the singing frequency in a preset reference range among common songs associated with all user IDs of the singing battle target,
A karaoke system equipped with an automatic selection function for battle assignments. It is a karaoke system provided with the battle subject music automatic selection function of Claim 2,
The number of songs of the task song is set,
The task song specifying means changes the reference range until the set number of task songs is reached.
A karaoke system equipped with an automatic selection function for battle assignments. It is a karaoke system provided with the battle | competition subject music automatic selection function in any one of Claims 1-3,
When the subject song selected by the user-specific song history management table does not correspond to the subject song selected in the song history management table classified by user, A karaoke system equipped with an automatic selection function for a task assignment song characterized by extracting and specifying a predetermined number.

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