JP2018091982A - Karaoke system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a karaoke system capable of presenting information which is helpful when a music piece is selected that has not been used for karaoke singing in the past.SOLUTION: A karaoke main unit 10 includes: a singing determination part 200 for determining whether a user has performed in the past karaoke singing of a music piece selected by the user; a score value extraction part 300 for extracting a score value of a music piece in which a difficulty level is set that is identical or approximate to the difficulty level of the selected music piece, based on the singing history of the user, when karaoke singing has not been performed for the selected music piece; a predicted score value calculation part 400 for calculating, based on the extracted score value, a predicted score value that may be obtained when the selected music piece is used for karaoke singing; and a presentation part 500 for presenting predicted information based on the calculated predicted score value.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a karaoke system.

  Among the songs that users sing karaoke, there are songs that have been sung many times in the past (so-called songs like the eighteenth), while those that have never been sung in the past There is also.

  Since it is not known how much music that has not been sung in the past can be sung, the user tends to ask for selection. In particular, when singing a karaoke by a plurality of people, as a result of worrying about the reaction of others, there is a tendency to more favor the selection of such music.

  Here, there is a guide vocal function as a support function when singing music that is not used to singing (see, for example, Patent Document 1, Non-Patent Document 1, and Non-Patent Document 2). The guide vocal function is a function for emitting a guide voice (a voice sung by a professional singer) recorded in advance in accordance with a karaoke performance. The user can enjoy singing even a musical piece that has not been karaoke sung in the past by performing karaoke singing together with the guide voice.

Japanese Patent Laying-Open No. 2015-87617

“ClubDAM.com Sound Content Guide Vocal”, [online], Daiichi Kosho Co., Ltd. [searched November 23, 2016], Internet <URL: http://www.clubdam.com/app/dam/ dam / bbcontents / guide.html> “JOYSOUND Vocal Assist”, [online], XING Inc. [searched on November 23, 2016], Internet <URL: https://www.joysound.com/web/s/joy/assist>

  However, the guide vocal function supports karaoke singing. That is, the guide vocal function is a function used when actually performing karaoke singing. In addition, since the guide vocal function is not provided for all musical pieces, there is a possibility that the guide vocal is not set for the musical piece for which karaoke singing is desired.

  The objective of this invention is providing the karaoke system which can show the information used as reference when selecting the music which has not performed karaoke singing in the past.

The main invention for achieving the above object is that a song determination unit for determining whether the user has performed a karaoke song in the past for a song selected by the user, and a karaoke song for the selected song. If not done, the user's singing history, the score value extraction unit for extracting the score value of the music set with the difficulty level that is the same or approximate to the difficulty level of the selected music, and the extracted Based on the scoring value, an expected scoring value calculation unit that calculates an expected scoring value that may be obtained when the selected song is sung karaoke, and a presentation that presents prediction information based on the calculated expected scoring value And a karaoke system.
Other characteristics of the present invention will be made clear by the description and drawings described later.

  ADVANTAGE OF THE INVENTION According to this invention, the information used as reference when selecting the music which has not performed karaoke singing in the past can be shown.

It is a figure which shows the hardware structural example of the karaoke apparatus which concerns on 1st Embodiment. It is a figure which shows the software structural example of the karaoke main body which concerns on 1st Embodiment. It is a figure which shows an example of a song history. It is a figure which shows an example of a reservation confirmation screen. It is a flowchart which shows the process of the karaoke apparatus which concerns on 1st Embodiment. It is a figure which shows the hardware structural example of the karaoke apparatus which concerns on 2nd Embodiment. It is a figure which shows the software structural example of the karaoke main body which concerns on 2nd Embodiment. It is a figure which shows the relationship between the frequency | count of reproduction | regeneration, and weighting. It is a flowchart which shows the process of the karaoke apparatus which concerns on 2nd Embodiment.

  In addition to the main invention described above, at least the following matters will become apparent from the description of the specification and drawings described below.

  That is, when a portable music player possessed by the user and a karaoke device are connected, a registration confirmation unit that confirms whether the selected music is registered in the portable music player, and the selected music is the A reproduction number acquisition unit for acquiring the number of reproductions of the selected music piece from the portable music player, and the predicted scoring value calculation unit calculates the predicted scoring value. At this time, a karaoke system that performs weighting according to the number of reproductions becomes clear. According to such a karaoke system, more appropriate information can be presented according to the number of times the selected music piece has been played.

  Further, the prediction information is a numerical value indicated by the predicted scoring value, and the karaoke system in which the presenting unit displays the numerical value on the display unit becomes clear. Alternatively, the prediction information is at least one of a character or a graphic corresponding to the predicted scoring value, and the karaoke system in which the presentation unit displays at least one of the character or the graphic on the display unit becomes clear. According to such a karaoke system, the user can visually grasp information for reference.

<First Embodiment>
With reference to FIGS. 1-5, the karaoke apparatus 1 which concerns on 1st Embodiment is demonstrated. The karaoke apparatus 1 is an example of a “karaoke system”.

== Karaoke equipment ==
The karaoke apparatus 1 is an apparatus for performing karaoke performance and karaoke singing by a user. The karaoke apparatus 1 is installed in each room of a karaoke store. As shown in FIG. 1, the karaoke apparatus 1 includes a karaoke main body 10, a speaker 20, a display device 30, a microphone 40, and a remote control device 50.

  The speaker 20 is configured to emit sound based on the sound emission signal from the karaoke main body 10. The display device 30 is configured to display a video or an image on the screen based on a signal from the karaoke main body 10. The microphone 40 is configured to convert a user's singing voice into an analog voice signal and input it to the karaoke main body 10. The remote control device 50 is a device for performing various operations on the karaoke main body 10. The user can use the remote controller 50 to select a song (reservation) or the like for a song for which karaoke singing is desired. Icons or the like for inputting instructions for various operations are displayed on the display screen of the remote control device 50.

  The karaoke main body 10 performs various controls related to karaoke singing, such as performance control of the selected karaoke music, display control of lyrics and background video, and processing of an audio signal input through the microphone 40. As shown in FIG. 1, the karaoke main body 10 includes a control unit 11, a communication unit 12, a storage unit 13, an acoustic processing unit 14, a display processing unit 15, and an operation unit 16. Each component is connected to the bus B via an interface (not shown).

  The control unit 11 includes a CPU 11a and a memory 11b. The CPU 11a implements various control functions by executing the operation program stored in the memory 11b. The memory 11b is a storage device that stores a program to be executed by the CPU 11a and temporarily stores various types of information when the program is executed.

  The communication unit 12 provides an interface for connecting the karaoke main unit 10 to a communication line via a router (not shown).

  The storage unit 13 is a large-capacity storage device that stores various data, and is, for example, a hard disk drive. The storage unit 13 stores a plurality of pieces of music data for performing karaoke performance by the karaoke apparatus 1.

  The music data is given a music ID for specifying individual music. The music data includes accompaniment data, reference data, and the like. Accompaniment data is data that is the source of karaoke performance sounds. Reference data is data indicating the main melody of the music. The reference data is used as a reference when scoring a karaoke song by a singer, for example. Accompaniment data and reference data are configured in, for example, MIDI format. The storage unit 13 also includes lyrics telop data for displaying lyrics telop corresponding to karaoke music on the display device 30, background image data such as a background image displayed on the display device 30 during karaoke performance, and music Attribute information (information related to the music such as the singer name, lyrics / composer name, and genre) is stored.

  In the present embodiment, the difficulty level is set for each piece of music. The difficulty level is an index that indicates the difficulty in singing a certain karaoke song. Generally, it can be said that karaoke singing is more difficult for a song having a higher difficulty level.

  The difficulty level can be set by various methods. For example, the difficulty level is set according to the number of short notes included in the main melody (the more difficult the music is, the shorter the number of short notes, the more difficult it is), and the difficulty level is set according to the pitch variation ( The degree of difficulty is higher for a musical piece whose fluctuation in pitch is larger (see Japanese Patent Application Laid-Open No. 2005-1073333 for a detailed method). Alternatively, it is possible to set the degree of difficulty using the average value and standard deviation of all the music pieces, and the deviation value calculated from the average value of the individual music points (for detailed methods, see Japanese Patent Laid-Open No. Hei 10-2010). No. 282978).

  The difficulty level can be classified into several stages. For example, several simple classifications such as “Rank A (Super Difficult)”, Rank B (Slightly Difficult), Rank C (Normal), Rank D (Slightly Easy), Rank E (Super Easy) are possible. . Alternatively, in order to increase the accuracy of the predicted scoring value (described later), it is possible to classify finely over 10 to several tens of steps.

  Based on the control of the control unit 11, the sound processing unit 14 controls the performance of the karaoke music and processes the singing voice signal input through the microphone 40. The acoustic processing unit 14 includes, for example, a MIDI sound source, a mixer, and an amplifier (all not shown). The MIDI sound source generates a musical sound signal based on the music data. The mixer mixes the music signal and the singing voice signal output from the microphone 40 at an appropriate ratio and outputs the mixed signal to the amplifier. The amplifier amplifies the mixing signal from the mixer and outputs the amplified signal to the speaker 20 as a sound emission signal. Thereby, the karaoke performance sound based on the sound emission signal and the singing voice from the microphone 40 are emitted from the speaker 20.

  The display processing unit 15 performs processing related to various displays in the display device 30 and the remote control device 50 based on the control of the control unit 11. For example, the display processing unit 15 controls the display device 30 to display a video in which lyrics telop and various icons are superimposed on a background video during karaoke performance.

  The operation unit 16 includes a panel switch and a remote control receiving circuit. The operation unit 16 sends operation signals such as a music selection signal and a performance stop signal to the control unit 11 according to the operation of the panel switch of the karaoke device 1 or the remote control device 50 by the user. Output. The control unit 11 detects an operation signal from the operation unit 16 and executes a corresponding process.

(Software configuration)
FIG. 2 is a diagram illustrating a software configuration example of the karaoke main body 10. The karaoke main body 10 includes a singing history storage unit 100, a singing determination unit 200, a scoring value extraction unit 300, an expected scoring value calculation unit 400, and a presentation unit 500. The singing history storage unit 100 is realized as a part of the storage area of the storage unit 13. The singing determination unit 200, the scoring value extraction unit 300, the expected scoring value calculation unit 400, and the presentation unit 500 are realized by the CPU 11a executing a program stored in the memory 11b.

[Singing history storage unit]
The song history storage unit 100 stores a song history for each user.

  For example, when the user X inputs his / her user ID and logs in to the karaoke apparatus 1, the karaoke apparatus 1 requests the singing history of the user X from a server (not shown). The server identifies the singing history of the user X in his / her storage area and transmits it to the karaoke apparatus 1. The song history storage unit 100 stores the song history of the user X received from the server.

  FIG. 3 is an example of the singing history of the user X. The singing history includes, for example, the difficulty level of the song together with the song name, song ID, date of singing, and scoring result (scoring value). Note that the degree of difficulty of each piece of music in FIG. 3 is set in five stages from rank A (super difficulty) to rank E (super easy).

[Singing judgment section]
The singing determination unit 200 determines whether the user has performed karaoke singing in the past for the music selected by the user.

  For example, it is assumed that the user X selects music m via the remote control device 50. In this case, the song determination unit 200 determines whether or not the song m is included in the song history of the user X stored in the song history storage unit 100. When the song m is included in the singing history of the user X, the user X has performed karaoke singing of the song m in the past. On the other hand, if the music m is not included in the singing history of the user X, the user X has never performed a karaoke singing of the music m in the past.

  When the user X has not performed karaoke singing of the music m in the past, the singing determination unit 200 outputs a predetermined signal to the scoring value extraction unit 300. On the other hand, when the user X has performed karaoke singing of the music m in the past, the singing determination unit 200 does not perform special processing.

[Scoring value extraction unit]
When the karaoke singing has not been performed for the selected music, the scoring value extraction unit 300 is based on the user's singing history, and the scoring value of the music for which the difficulty level that is the same as or similar to the difficulty level of the selected music is set To extract.

  For example, in the above example, it is assumed that the difficulty level of the music m selected by the user X is “rank B”. In this case, the scoring value extraction unit 300 searches the singing history of the user X to see if there is a song that has the same difficulty level as the difficulty level “rank B” of the selected song m. As shown in FIG. 3, the song history of the user X includes a song “a” and a song “e” as songs of difficulty “rank B”. In this case, the scoring value extraction unit 300 extracts the scoring value “85 points” of the music a and the scoring value “75 points” of the music e from the singing history. The scoring value extraction unit 300 outputs the extracted scoring value to the predicted scoring value calculation unit 400.

  As described above, in order to increase the accuracy of the predicted scoring value (described later), it is preferable that the difficulty level is classified finely. On the other hand, when the difficulty level is classified finely, there is a high possibility that there is no song in the singing history that has the same difficulty level as the difficulty level of the selected song. Therefore, the scoring value extraction unit 300 may extract a scoring value of a music set with a difficulty level that approximates the difficulty level of the selected music.

  For example, when the difficulty level is classified into 7 levels of “Rank A” to “Rank G”, songs having the same difficulty level as the difficulty level “Rank D” of the selected song are recorded in the singing history. Is not included. In this case, the scoring value extraction unit 300 searches for a song having a difficulty level “rank C” or a difficulty level “rank E” close to the difficulty level “rank D”. If there is a song with difficulty “rank C” or difficulty “rank E” set in the singing history, the scoring value extraction unit 300 extracts the scoring value of the music. The difficulty level “rank C” or the difficulty level “rank E” is an example of the “difficulty level that approximates” the difficulty level “rank D”.

  Alternatively, it is possible to divide the difficulty levels into several groups in advance and extract the scoring values of songs included in the same group. For example, the difficulty levels are classified into 9 levels of “Rank A” to “Rank I”, and they are the first group having the difficulty levels “Rank A” to “Rank C”, and the difficulty levels “Rank D” to “Rank D” to “Rank A”. It is assumed that it is divided into a second group of “Rank F” and a third group of difficulty “Rank G” to “Rank I”. Here, it is assumed that a song having the same difficulty level as the difficulty level “rank D” of the selected song is not included in the singing history. In this case, the scoring value extraction unit 300 has a music set with another difficulty level (difficulty level “rank E” or difficulty level “rank F”) of the second group including the difficulty level “rank D”. Search whether or not. When there is a song with difficulty “rank E” or difficulty “rank F” in the singing history, the scoring value extraction unit 300 extracts the scoring value of the music. The difficulty level “Rank E” or the difficulty level “Rank F” is an example of “the difficulty level that approximates” the difficulty level “Rank D”.

[Expected scoring value calculator]
The predicted scoring value calculation unit 400 calculates an expected scoring value that may be obtained when the selected music piece is karaoke sung based on the extracted scoring value.

  For example, in the above example, when the scoring value “85 points” of the music piece “a” and the scoring value “75 points” of the music piece “e” are input from the scoring value extraction unit 300, the predicted scoring value calculation unit 400 calculates the average of those values. The value “80 points” is calculated. The predicted scoring value calculation unit 400 outputs the calculated value to the presentation unit 500. When there are a plurality of scoring values, the predicted scoring value may not be an average value, but may be a variance value, a median value, a mode value, a standard deviation, or the like. Conversely, when there is only one scoring value input from the scoring value extraction unit 300, the predicted scoring value calculation unit 400 outputs the value to the presentation unit 500 as the predicted scoring value.

[Presentation section]
The presentation unit 500 presents prediction information based on the calculated predicted scoring value. The prediction information is information that is helpful when selecting a song, such as a scoring value that would be obtained when a certain song is sung karaoke.

  The prediction information is, for example, a numerical value (expected scoring value itself) indicated by the predicted scoring value. In the above example, when the predicted scoring value “80 points” is input from the predicted scoring value calculation unit 400, the presentation unit 500 presents “80 points”, which is the numerical value indicated by the predicted scoring value, to the user as prediction information. . Various methods can be used for presenting the prediction information.

  For example, when the user selects the song m, the presentation unit 500 can display the prediction information “80 points” together with the information about the song m on the display unit of the remote control device 50 (see FIG. 4). Displaying the prediction information on the display unit in this way is an example of “presenting the prediction information”. The presentation unit 500 may cause the display device 30 to display the prediction information.

  In addition, the presentation unit 500 can also present the predicted information as a voice to the user via the speaker 20. In this way, emitting predicted information from the speaker 20 is also an example of “presenting predicted information”.

  Note that the prediction information may not be a specific numerical value. Predictive information may be presented in characters such as “may be quite difficult?” Or “you should be able to sing easily!”, Or a character (an example of a figure) that has a grim face as the predicted score is lower, or predicted score It can be presented as a graphic such as “◎” when the value is high and “x” when the value is low. These characters and figures are, for example, a “◎” figure when the predicted scoring value is 80 points or more, and a “may be quite difficult?” Character when the expected scoring value is 60 points or less. Characters and figures corresponding to the expected scoring values are set. These character and graphic data are stored in the storage unit 13.

== About the operation of the karaoke apparatus 1 ==
Next, a specific example of the operation of the karaoke apparatus 1 in the present embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing an operation example of the karaoke apparatus 1.

  User X selects music m via remote control device 50 (music selection of music m. Step 10).

  The song determination unit 200 determines whether the user X has performed karaoke singing in the past for the music m selected by the user X.

  When the user X has never performed karaoke singing of the music m (in the case of N in Step 11), the scoring value extraction unit 300 has the same difficulty level as that of the music m from the singing history of the user X. Is extracted (scoring values of music having the same difficulty level are extracted. Step 12). The scoring value extraction unit 300 outputs the extracted scoring value to the predicted scoring value calculation unit 400.

  The predicted scoring value calculation unit 400 calculates an expected scoring value that may be obtained when karaoke singing the selected music m based on the scoring value extracted in step 12 (calculation of predicted scoring value; step 13). ). The predicted scoring value calculation unit 400 outputs the calculated predicted scoring value to the presentation unit 500.

  The presentation unit 500 presents prediction information based on the predicted scoring value calculated in step 13 to the user X (presentation of prediction information, step 14).

  Thus, according to the karaoke apparatus 1 which concerns on this embodiment, the music of the difficulty same as or similar to the difficulty of the music which has not performed karaoke singing in the past is specified from a song history, and the score of the music is scored. By extracting the value, it is possible to present information (predicted information) that serves as a reference when selecting a song that has not been sung in the past. By referring to the prediction information, the user can easily determine whether or not to actually sing a song that has not been sung in the past. The user who refers to the prediction information can take various measures before actually performing the karaoke singing, such as setting a guide vocal when the karaoke singing is difficult.

Second Embodiment
Next, with reference to FIGS. 6-9, the karaoke apparatus 1 which concerns on 2nd Embodiment is demonstrated. Detailed description of the same configuration as that of the first embodiment will be omitted.

  Some users of karaoke devices want to sing songs that they often listen to on their own portable music players (smartphones, music-only players, etc.). In response to such a request, for example, in Japanese Patent Laid-Open No. 2006-317804, a music player and a remote control device are connected via a USB interface, and song specifying information included in music data stored in the music player is read. In addition, a technique is disclosed in which a music piece stored in a music player is selected as a music selection target by causing a corresponding performance music piece to be displayed on the screen based on the music specifying information. Alternatively, in Japanese Patent Application Laid-Open No. 2008-286841, a karaoke remote control acquires performance information including a song name, an artist name, and the number of reproductions for each piece of music stored in a music player, and the number of reproductions of the performance information exceeds a predetermined ratio. Based on the song name and artist name of the performance information for each song, the song index table is referenced and the song IDs of the karaoke songs are associated with each other and displayed so that the songs can be selected in the order of the playback ratio. A technique capable of selecting music for music selection is disclosed.

  By using the technique of the above-mentioned document, the user can select a song that is often listened to by a portable music player using a karaoke device. However, since it is not always possible to perform karaoke singing well even if the music is often listened to, there are many users who feel ugly about selecting music that has never been karaoke sung in the past. In this embodiment, in such a case, a karaoke apparatus capable of presenting information for reference when selecting a song will be described by considering the number of times the music is played on the portable music player.

== Karaoke equipment ==
FIG. 6 is a diagram illustrating the karaoke apparatus 1 according to the present embodiment. The karaoke apparatus 1 can be connected to a portable music player M.

  The communication unit 12 in the present embodiment also functions as an interface for establishing a connection between the portable music player M owned by the user and the karaoke apparatus 1. The connection between the portable music player M and the karaoke apparatus 1 may be, for example, a USB connection or a wireless connection (for example, Bluetooth (registered trademark) or infrared rays). Although not shown, the portable music player M side naturally has an interface for connection.

(Software configuration)
FIG. 7 is a diagram illustrating a software configuration example of the karaoke main body 10. The karaoke main body 10 according to the present embodiment includes a singing history storage unit 100, a singing determination unit 200, a scoring value extraction unit 300, an expected scoring value calculation unit 400, a presentation unit 500, a registration confirmation unit 600, and a reproduction count acquisition unit 700. Prepare. The singing history storage unit 100 is realized as a part of the storage area of the storage unit 13. The singing determination unit 200, the scoring value extraction unit 300, the expected scoring value calculation unit 400, the presentation unit 500, the registration confirmation unit 600, and the reproduction count acquisition unit 700 are realized by the CPU 11a executing a program stored in the memory 11b. The

[Registration Confirmation Department]
When the portable music player M possessed by the user and the karaoke apparatus 1 are connected, the registration confirmation unit 600 confirms whether the selected music is registered in the portable music player M.

  For example, it is assumed that the music n is selected while the portable music player M possessed by the user X is connected to the karaoke apparatus 1.

  In this case, the registration confirmation unit 600 confirms whether or not the selected music n is registered in the portable music player M. For example, the registration confirmation unit 600 transmits information indicating the song name and singer name of the song n to the portable music player M. The portable music player M confirms whether or not a song corresponding to the received song name and singer name is registered. It is assumed that the music n selected in this example is registered in the portable music player M. In that case, the portable music player M transmits a registered signal indicating that it is registered to the registration confirmation unit 600. Registration confirmation unit 600 outputs a registered signal to reproduction number acquisition unit 700. If the portable music player and the karaoke apparatus are not connected, or if the selected music is not registered in the portable music player, the subsequent processing is not performed.

[Play count acquisition unit]
When the selected music piece is registered in the portable music player M, the reproduction number acquisition unit 700 acquires the reproduction number of the selected music piece from the portable music player M.

  The portable music player M has a function of storing the number of times that the registered music has been reproduced (the number of times of reproduction) for each music. Therefore, the playback count acquisition unit 700 can acquire the playback count of the selected music piece from the portable music player M.

  In the above example, the reproduction number acquisition unit 700 that has received the registered signal from the registration confirmation unit 600 requests the portable music player M for the number of reproductions of the music piece n. The portable music player M reads the number of times the music n has been played from the storage area, and transmits it to the karaoke apparatus 1 (playback collection acquisition unit 700). The playback count acquisition unit 700 outputs the received playback count to the expected scoring value calculation unit 400. The portable music player M may transmit the corresponding number of reproductions to the reproduction number acquisition unit 700 together with the registered signal transmitted to the registration confirmation unit 600.

[Expected scoring value calculator]
The predicted scoring value calculation unit 400 according to the present embodiment performs weighting according to the number of reproductions when calculating the predicted scoring value.

  In general, for songs that are often listened to (that is, songs that have been played many times), it is highly possible that the lyrics and melody are well understood, so even if you are singing karaoke for the first time, singing to a certain extent It is highly possible. On the other hand, for music that has not been listened to much, the possibility of singing well decreases. Therefore, it is possible to obtain more accurate prediction information by weighting the predicted scoring value according to the number of reproductions.

  Regarding the number of reproductions and weighting, for example, the storage unit 13 stores table data as shown in FIG. By referring to this table data, a weighting value corresponding to the number of reproductions can be determined. In the example of FIG. 8, the maximum weighting value is 1 or less. This is based on the premise that there is a high possibility that the score will be low for songs that are sung for the first time, even if they are at the same difficulty level, because listening to the song is different from actually singing a karaoke song . That is, since such a premise is merely an example, it is naturally possible to set the weighting value to 1 or more.

  It is assumed that “70 points” and “80 points” are input from the scoring value extraction unit 300 as the scoring values of the music having the same difficulty level as that of the music n. The predicted scoring value calculation unit 400 according to the present embodiment calculates an average value “75 points” of these values, and weights the value according to the number of times the music n is played. In this example, it is assumed that the number of reproductions of the music piece n is 82 times. In this case, the predicted scoring value calculation unit 400 calculates a value “69.75” obtained by multiplying “75 points” by the weighting value “0.93” shown in FIG. 8 as the predicted scoring value. Note that when the predicted scoring value is presented as it is, a value obtained by rounding down (or raising) the decimal point may be used.

== About the operation of the karaoke apparatus 1 ==
Next, a specific example of the operation of the karaoke apparatus 1 in the present embodiment will be described with reference to FIG. FIG. 9 is a flowchart showing an operation example of the karaoke apparatus 1.

  The user X connects the portable music player M possessed by the user X to the karaoke apparatus 1 (connection of the portable music player, step 20).

  User X selects music n via remote controller 50 (music n selection; step 21).

  The singing determination unit 200 determines whether the user X has performed karaoke singing in the past for the music n selected by the user X.

  When the user X has never performed karaoke singing of the musical piece n (N in step 22), the scoring value extraction unit 300 has the same difficulty level as that of the musical piece n from the singing history of the user X. Is extracted (scoring value of music having the same difficulty level is extracted. Step 23). The scoring value extraction unit 300 outputs the extracted scoring value to the predicted scoring value calculation unit 400.

  On the other hand, the registration confirmation unit 600 confirms whether or not the selected music n is registered in the portable music player M. When the selected music n is registered in the portable music player M (in the case of Y in step 24), the playback count acquisition unit 700 acquires the playback count of the selected music from the portable music player M (of the playback count). Acquisition, step 25). The number-of-plays acquisition unit 700 outputs the acquired number of times of playback to the predicted scoring value calculation unit 400. In addition, the process of step 23 and the process of steps 24-25 may be performed simultaneously, and may be performed in reverse order.

  The predicted scoring value calculation unit 400 weights the scoring value extracted at step 23 according to the number of reproductions acquired at step 25 (weighting according to the number of reproductions; step 26). Then, the predicted scoring value calculation unit 400 calculates the weighted value in step 26 as the predicted scoring value (calculation of the predicted scoring value, step 27). The predicted scoring value calculation unit 400 outputs the calculated predicted scoring value to the presentation unit 500.

  The presentation unit 500 presents prediction information based on the predicted scoring value calculated in step 27 to the user X (presentation of prediction information, step 28).

  As described above, according to the karaoke apparatus 1 according to the present embodiment, it is possible to weight the expected score value of the music selected according to the number of times of reproduction in the portable music player possessed by the user. Therefore, more appropriate prediction information can be presented.

<Others>
In the above-described embodiment, an example in which all the processes are performed in the karaoke apparatus 1 has been described. However, a part of the processes may be performed by another apparatus (for example, a server that is communicably connected to the karaoke apparatus 1).

  For example, in the first embodiment, the processing performed by the singing determination unit 200, the scoring value extraction unit 300, and the predicted scoring value calculation unit 400 can be performed on the server side. In this case, the karaoke apparatus 1 transmits information (for example, music ID) regarding the music selected by the user to the server. The server refers to the singing history stored in the storage unit on the server side, and determines whether the user has sung the music in the past. Furthermore, an estimated score value can be obtained by executing the same processing as the score value extracting unit 300 and the estimated score value calculating unit 400 on the server side. And the presentation part 500 of the karaoke apparatus 1 presents prediction information based on the predicted scoring value received from the server. In this case, the karaoke apparatus 1 and the server correspond to a “karaoke system”.

  Or in 1st Embodiment, it is also possible to perform the process which the song judgment part 200, the scoring value extraction part 300, the estimated scoring value calculation part 400, and the presentation part 500 perform with the remote control device 50. In this case, the remote controller 50 itself corresponds to a “karaoke system”.

  Moreover, in the first embodiment, when the user X has performed karaoke singing in the past on the selected music m, the singing determination unit 200 has described an example in which no special processing is performed. Absent. For example, when the user X has performed a karaoke singing of the music m in the past, the singing determination unit 200 outputs a predetermined signal to the presentation unit 500. The presentation unit 500 may read the scoring result of the song X of the user X from the singing history storage unit 100 and present the scoring result as prediction information.

  In the second embodiment, the example in which the portable music player M is connected to the karaoke main body 10 has been described. However, the portable music player M may be connected to the remote controller 50. In this case, the number of times the music has been played is transmitted to the karaoke main body 10 via the remote controller 50.

  In addition, the configuration of the above embodiment can be applied when the portable music player M is used as a remote control device. In this case, the portable music player M (smartphone) is installed with application software that allows the karaoke device 1 to perform the same input operation as the remote control device 50.

  Here, for example, it is assumed that the user X selects a song for which karaoke singing is desired via the application software. The portable music player M makes an inquiry to the karaoke apparatus 1 (or server) as to whether the user X has performed karaoke singing of the music in the past. The karaoke apparatus 1 that has received the inquiry determines the presence or absence of karaoke singing of the music from the singing history of the user X. When the user X has never performed karaoke singing of the music in the past, the karaoke apparatus 1 performs the same processing as in the first embodiment to calculate the predicted scoring value, and uses the value as the portable music player M. Send to.

  On the other hand, the portable music player M confirms whether or not the selected music is registered in its own storage unit. When the selected music is registered, the portable music player M acquires the number of times the music has been played. And the portable music player M calculates | requires prediction information by weighting according to the frequency | count of reproduction | regeneration acquired with respect to the estimated scoring value received from the karaoke apparatus 1, and displays it on an own display screen.

  The above embodiment is presented as an example and does not limit the scope of the invention. The above configurations can be implemented in appropriate combination, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The above-described embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof in the same manner as included in the scope and spirit of the invention.

1 Karaoke device (Karaoke system)
DESCRIPTION OF SYMBOLS 10 Karaoke main body 11 Control part 13 Memory | storage part 200 Singing judgment part 300 Scoring value extraction part 400 Expected scoring value calculation part 500 Presentation part

Claims (4)

A song determination unit that determines whether the user has performed karaoke singing in the past for the music selected by the user,
If the karaoke singing has not been performed for the selected music, the scoring value is extracted from the singing history of the user, and the scoring value of the music having the same or similar difficulty as that of the selected music is set. A value extractor;
Based on the extracted scoring value, an expected scoring value calculation unit that calculates an expected scoring value that may be obtained when karaoke singing the selected music,
A presentation unit for presenting prediction information based on the calculated predicted scoring value;
Karaoke system with When a portable music player possessed by the user and a karaoke device are connected, a registration confirmation unit for confirming whether the selected music is registered in the portable music player;
When the selected music is registered in the portable music player, a number of times acquisition unit that acquires the number of times the selected music is played from the portable music player;
Have
The karaoke system according to claim 1, wherein the predicted scoring value calculation unit performs weighting according to the number of times of reproduction when calculating the predicted scoring value. The prediction information is a numerical value indicated by the predicted scoring value,
The karaoke system according to claim 1, wherein the presenting unit displays the numerical value on a display unit. The prediction information is at least one of a character or a graphic corresponding to the predicted scoring value,
The karaoke system according to claim 1, wherein the presentation unit displays at least one of the characters or graphics on a display unit.

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