JP7117228B2 - karaoke system, karaoke machine - Google Patents

Description

The present invention relates to karaoke systems and karaoke machines.

Users with different mother tongues sometimes use a karaoke machine. In such a case, for example, if a Japanese user sings karaoke in Japanese, foreigners whose mother tongue is different cannot understand the contents of the lyrics.

Therefore, Patent Literature 1 discloses a technique for displaying translated lyrics in the user's native language on a sub-monitor.

JP 2007-121514 A

Even if the translated lyrics (for example, English) are displayed on the sub-monitor as in Patent Document 1, actual karaoke singing is performed based on the lyrics (for example, Japanese) before translation. Therefore, users whose mother tongue is different cannot enjoy the song even if they refer to the translated lyrics along with the karaoke performance.

SUMMARY OF THE INVENTION An object of the present invention is to provide a karaoke stem that enables even users whose mother tongue is different from that of users who sing karaoke songs to enjoy singing along with karaoke performances.

One invention for achieving the above object is a karaoke system in which a server device and a karaoke device are communicably connected, wherein the server device uses a voice quality parameter indicating the voice quality of a user to identify the user. The karaoke device has a user information storage unit for storing in association with user identification information for identification, wherein the karaoke device stores performance data for karaoke performance, first lyric data in a first language, and the first lyrics data in a first language. A song data storage unit that stores second lyric data in a second language different from the first language for each song, and according to a login operation performed via a portable terminal owned by a user of the karaoke machine. a login processing unit that acquires the user identification information of the user; An extraction unit for extracting singing voice data including pitch data and volume data from voice, the extracted singing voice data, the second lyric data of the song read in accordance with the karaoke performance, and the karaoke singing a creation unit that creates a synthesized singing voice signal based on the voice quality parameter acquired from the server device in accordance with the user identification information of the user who performs the login operation; A karaoke system comprising a transmission processing unit for transmitting the generated synthesized singing voice signal to a mobile terminal owned by an audience member who is a user other than a karaoke singing user.
Other features of the present invention will be clarified by the description of the specification and drawings described later.

According to the present invention, even a user whose mother tongue is different from that of a user who sings karaoke can enjoy singing along with the karaoke performance.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the outline of the karaoke system which concerns on 1st Embodiment. It is a figure which shows the hardware structural example of the server apparatus which concerns on 1st Embodiment. 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 apparatus which concerns on 1st Embodiment. It is a flow chart which shows processing of a karaoke system concerning a 1st embodiment.

<First Embodiment>
A karaoke system according to the first embodiment will be described with reference to FIGS. 1 to 5. FIG.

== Karaoke System ==
As shown in FIG. 1, the karaoke system 1 according to this embodiment includes a server device S and a karaoke device K. As shown in FIG. The server device S and the karaoke device K can communicate with each other via the network N. The network N is, for example, a transmission line such as a public telephone line network or Internet line. Also, the karaoke machine K can communicate with a portable terminal owned by a user.

User U1 to user U3 are users who use the karaoke machine K together. In the following description, users U1 and U2 are Japanese (native language: Japanese), and user U3 is American (native language: English).

Each user owns a mobile terminal (mobile terminal M1 to mobile terminal M3). A mobile terminal is a general smart phone or a tablet terminal. Dedicated application software (hereinafter referred to as "karaoke application") used when using the karaoke device K is installed in the portable terminal. The karaoke application can be obtained by downloading from the server device S or a website provided by the server device S.

The portable terminal and the karaoke machine K can communicate with each other by being paired. Pairing can utilize a well-known method. Pairing is performed, for example, when a karaoke application is started after entering a karaoke room in which the karaoke device K is installed. After being paired, the user uses the karaoke application to perform, for example, a login operation to the karaoke device K, or perform the same operation as the remote control device attached to the karaoke device K (reservation of music, etc.). be able to.

== server device ==
The server device S is a computer that manages various information regarding the karaoke device K. FIG. FIG. 2 is a diagram showing a hardware configuration example of the server device S. As shown in FIG. The server device S includes a storage unit 10 , a communication unit 20 and a control unit 30 . Each configuration is connected to bus B via an interface (not shown).

The storage unit 10 is a large-capacity storage device that stores various data. Part of the storage area of the storage unit 10 according to this embodiment functions as a user information storage unit 10a.

The user information storage unit 10a stores the voice quality parameter in association with the user identification information.

A voice quality parameter is a parameter that indicates the voice quality of the user. A user's voice quality is determined based on the frequency characteristics of the voice. The voice quality parameter can be extracted, for example, from the user's singing voice using a known technique (Japanese Patent Application Laid-Open No. 2014-048472, etc.). User identification information is information unique to each user, such as a user ID for identifying the user.

The voice quality parameter can be obtained in advance before using the karaoke machine K. For example, when the user U1 sings karaoke using a karaoke machine in the past, the karaoke machine extracts voice quality parameters from the singing voice of the user U1, and uses the user identification information ( (user ID) and transmitted to the server device S. The user information storage unit 10a stores the voice quality parameter of the user U1 in association with the user ID.

Note that the voice quality parameter may include attribute information regarding age and gender.

The communication unit 20 provides an interface for connecting the server device S and the karaoke device K. FIG. The control unit 30 performs various controls in the server device S. FIG. The control unit 30 includes a CPU and memory (both not shown). The CPU implements various functions by executing programs stored in the memory.

==Karaoke Device==
[Hardware configuration]
The karaoke device K is a device for performing karaoke music and for users to sing karaoke songs.

As shown in FIG. 3, the karaoke machine K includes a karaoke main body 40, a speaker 50, a display device 60, a microphone 70, and a remote control device 80. As shown in FIG.

The speaker 50 is configured to emit sound based on the sound emission signal from the karaoke main body 40 . The display device 60 is configured to display video and images on the screen based on the signal from the karaoke main body 40 . The microphone 70 is configured to convert the user's singing voice (input voice to the microphone 70 ) into an analog voice signal and input it to the karaoke main body 40 . The remote control device 80 is a device for performing various operations on the karaoke main body 40 . The user can use the remote control device 80 to search for and select (reserve) a desired song for karaoke singing. The display screen of the remote control device 80 displays icons and the like for inputting instructions for various operations.

The karaoke main body 40 performs various controls related to karaoke singing, such as karaoke performance control of selected music, display control of lyrics and the like, and processing of audio signals input through the microphone 70 . As shown in FIG. 3 , the karaoke main body 40 includes a control section 41 , a communication section 42 , a storage section 43 , a sound processing section 44 , a display processing section 45 and an operation section 46 . Each configuration is connected to bus B via an interface (not shown).

The control unit 41 includes a CPU and memory (both not shown). The CPU implements various control functions by executing operating programs stored in the memory. The memory is a storage device that stores programs to be executed by the CPU and temporarily stores various types of information during execution of the programs.

The communication unit 42 provides an interface for connecting the karaoke main unit 40 to a communication line via a router (not shown).

The storage unit 43 is a large-capacity storage device that stores various data, such as a hard disk drive.

Under the control of the control unit 41 , the sound processing unit 44 controls karaoke performance of music and processes singing voice signals input through the microphone 70 . The display processing unit 45 performs processing related to various displays on the display device 60 and the remote control device 80 under the control of the control unit 41 . For example, the display processing unit 45 causes the display device 60 to display an image in which lyric telops and various icons are superimposed on a background image during a karaoke performance. Alternatively, the display processing unit 45 causes the display screen of the remote control device 80 to display various icons for operation input.

The operation unit 46 includes a panel switch, a remote control receiving circuit, and the like, and transmits operation signals such as a music selection signal and a performance stop signal to the control unit 41 in accordance with the user's operation of the panel switch of the karaoke machine K or the remote control device 80. Output. The control unit 41 detects an operation signal from the operation unit 46 and executes corresponding processing.

[Software configuration]
FIG. 4 is a diagram showing an example of the software configuration of the karaoke main body 40. As shown in FIG. The karaoke main body 40 includes a music data storage section 100 , a login processing section 200 , an extraction section 300 , a creation section 400 and a transmission processing section 500 . The music data storage section 100 is configured as part of the storage area of the storage section 43 . The login processing unit 200, the extraction unit 300, the creation unit 400, and the transmission processing unit 500 are implemented by the CPU of the control unit 41 executing programs stored in the memory.

(music data storage unit)
The song data storage unit 100 stores performance data for karaoke performance, first lyric data in a first language, and second lyric data in a second language different from the first language for each song. memorize to Each song is given a song ID for identifying the individual song.

Performance data is data that is the source of karaoke performance sounds. The sound processing unit 44 performs karaoke performance based on the performance data.

The first lyric data and the second lyric data are data for displaying the lyric telop corresponding to the music on the display device 60 or the like. The first lyric data is composed of a first language. The second lyric data is composed of a second language different from the first language. For example, if the first language is "Japanese", the second language is a language other than Japanese (eg, "English"). The lyrics indicated by the first lyric data and the second lyric data are segmented according to each language so as to match the karaoke performance.

(Login processing part)
The login processing unit 200 acquires the user identification information of the user who uses the karaoke machine K according to the login operation from the portable terminal owned by the user.

When using the karaoke machine K, the user first performs a login operation (entering his/her own user ID and password). Specifically, the user activates the karaoke application on his/her own mobile terminal and inputs the user ID and password after the pairing is completed. The mobile terminal transmits the inputted user ID and password to the karaoke machine K together with information (terminal ID) for identifying the mobile terminal. The login processing unit 200 acquires a user ID or the like, and performs processing for the user to log in to the karaoke apparatus K based on the user ID or the like. By performing the login process, the karaoke apparatus K can identify the current user (and the mobile terminal owned by the user). When a plurality of users use the karaoke apparatus K, a login operation is performed for each user.

Here, in the example of FIG. 1, after users U1 to U3 have logged into the karaoke machine K via their mobile terminals, user U1 reserves music X via mobile terminal M1. . It is also assumed that the song X has an original version (Japanese) sung by a Japanese artist and a cover version (English) sung by an American artist. In this case, the music data storage unit 100 stores performance data of music X, lyric data in Japanese, and lyric data in English.

The user U1 selects which karaoke version, the original version or the cover version, is to be sung when reserving the song X. - 特許庁Since the user U1 is Japanese, it is assumed that the original version is selected. In this case, the first language is "Japanese" and the second language is "English". The portable terminal M1 transmits the music ID of the music X, version information indicating the version selected by the user, and the user ID of the user U1 to the karaoke machine K. FIG.

The control unit 41 reads the performance data of the music piece X from the music piece data storage unit 100 based on the received music piece ID, and controls the sound processing unit 44 to play the music piece X in karaoke. Further, the control unit 41 reads the Japanese lyric data of the music piece X from the music data storage unit 100 based on the received version information, and controls the display processing unit 45 to display lyric telops (Japanese text) based on the lyric data. lyrics telop) is displayed on the display device 60 or the remote control device 80 . In this example, the lyric data in Japanese corresponds to "first lyric data".

(Extraction part)
The extraction unit 300 extracts singing voice data including pitch data and volume data from the singing voice obtained when the user sings karaoke in the first language in accordance with the karaoke performance based on the performance data of a certain song. Extract.

A known technique (for example, JP-A-2011-215292) can be used to extract pitch data and volume data.

In the above example, the user U1 who has made a reservation for the song X performs karaoke singing of the song X while referring to Japanese telops of the lyrics.

The extraction unit 300 extracts singing voice data including pitch data and volume data from the singing voice obtained when the user U1 sings karaoke in Japanese along with the karaoke performance of the song X.

(creation department)
The creating unit 400 creates voice quality parameters acquired from the server device S in accordance with the extracted singing voice data, the second lyric data of a certain song read in accordance with the karaoke performance, and the user identification information of the user who sings karaoke. create a synthesized singing voice signal based on

A synthesized singing voice signal can be created using a known technique (eg, Japanese Patent Application Laid-Open No. 2007-240564). For example, the creating unit 400 synthesizes a voice waveform that is the source of the singing voice signal based on the second lyric data, and applies pitch data and volume data included in the singing voice data to the synthesized voice waveform. A singing voice signal to which pitch change and volume change are added is generated. The creating unit 400 creates a synthesized singing voice signal by subjecting the generated singing voice signal to equalizing processing, formant filtering, etc. based on voice quality parameters.

The voice quality parameter defines the user's voice itself, and the singing voice data defines how the user sings. Therefore, the voice based on the synthesized singing voice signal created based on these is similar to the voice when the user sings a song in karaoke in the second language.

As described above, when the user U1 sings the karaoke song X in Japanese, the creating unit 400 acquires the singing voice data extracted by the extracting unit 300 . In addition, the creation unit 400 acquires the English lyric data of the song X from the song data storage unit 100 in time with the karaoke performance of the song X. FIG. In this example, the English lyric data corresponds to the "second lyric data". Furthermore, the creating unit 400 acquires the voice quality parameter of the user U1 from the server device S based on the user ID of the user U1. The creating unit 400 creates a synthesized singing voice signal based on the acquired data and parameters.

(Transmission processing unit)
The transmission processing unit 500 transmits the created synthesized singing voice signal to portable terminals owned by audience members who are users other than the karaoke singing users among the plurality of users who have performed the login operation.

After the users U1 to U3 perform the login operations as described above, when the user U1 sings the song X in karaoke, the users U2 and U3 are the audience. The transmission processing unit 500 transmits the created synthesized singing voice signal to the mobile terminal M2 owned by the user U2 and the mobile terminal M3 owned by the user U3.

The mobile terminal that has received the synthesized singing voice signal emits a sound based on the synthesized singing voice signal through a speaker included in the mobile terminal.

==About the processing in the karaoke system==
Next, a specific example of processing in the karaoke system 1 according to this embodiment will be described with reference to FIG. FIG. 5 is a flow chart showing an example of processing in the karaoke system 1. As shown in FIG. In this example, the karaoke machine K is used by users U1 to U3. It is also assumed that the user information storage unit 10a of the server device S stores a voice quality parameter indicating the voice quality of the user in association with user identification information for identifying the user. Also, it is assumed that song X has a Japanese version and an English version. Further, it is assumed that the music data storage unit 100 of the karaoke machine K stores performance data for karaoke performance, Japanese lyric data, and English lyric data for the music X. FIG.

Each user activates a karaoke application on his/her mobile terminal and performs a login operation to the karaoke apparatus K.

The login processing unit 200 acquires the user ID of each user according to the login operation performed via each mobile terminal (login processing, step 10).

After that, assume that the user U1 makes a singing reservation for the Japanese version of the song X. The karaoke apparatus K reads the performance data of the music piece X from the music piece data storage unit 100 and starts the karaoke performance of the music piece X (start of karaoke performance, step 11).

Before the user U1 starts singing karaoke (during the prelude of the music piece X), the creation unit 400 transmits the user ID of the user U1 to the server device S (transmission of the user ID, step 12).

The server device S reads the voice quality parameter associated with the user ID transmitted in step 12 from the user information storage section 10a and transmits it to the karaoke machine K (transmission of voice quality parameter; step 13).

After that, the prelude of the song X ends, and the karaoke performance of the singing section (the section in which the lyrics for singing karaoke are given) is started. The karaoke machine K causes the display device 60 to display lyric telops based on the lyric data in Japanese. The user U1 sings karaoke in Japanese along with the karaoke performance of the song X while referring to the telop of the lyrics (start of karaoke singing, step 14).

The extraction unit 300 extracts singing voice data from the singing voice of the user U1 (extraction of singing voice data, step 15).

The creating unit 400 generates a synthesized singing voice signal based on the singing voice data extracted in step 15, the lyric data in English of the song X read out in time with the karaoke performance, and the voice quality parameters of the user U1 transmitted in step 13. (Creation of synthesized singing voice signal, step 16).

In step 16, the transmission processing unit 500 sends a message to each of the portable terminals owned by user U2 and user U3 who are listening to karaoke singing by user U1 among the plurality of users who have performed the login operation in step 10. The created synthetic singing voice signal is transmitted (transmission of synthetic singing voice signal, step 17). Each portable terminal emits sound based on the synthesized singing voice signal (sound similar to the sound when the user U1 sings the song X in karaoke in English). Each user can listen to the voice based on the synthesized singing voice signal along with the karaoke performance of the song X.

The karaoke machine K repeats the processing of steps 15 to 17 until the karaoke singing of the song X is completed (in the case of Y in step 18).

Thus, in the karaoke system 1 according to this embodiment, the server device S and the karaoke device K are connected so as to be able to communicate with each other. The server device S has a user information storage unit 10a that stores a voice quality parameter indicating the voice quality of a user in association with a user ID for identifying the user. The karaoke device K stores performance data for karaoke performance, first lyric data in a first language, and second lyric data in a second language different from the first language for each song. a log-in processing unit 200 for acquiring the user ID of a user using the karaoke apparatus K in response to a log-in operation from a mobile terminal owned by the user using the karaoke apparatus K; and performance data of a certain song. An extraction unit 300 for extracting singing voice data including pitch data and volume data from the singing voice obtained when the user sings karaoke in the first language in accordance with the karaoke performance based on, and the extracted singing Synthetic singing voice signal is generated based on the voice data, the second lyric data of a certain song read in accordance with the karaoke performance, and the voice quality parameter obtained from the server device S according to the user ID of the user who sings karaoke. Transmission for transmitting the created synthesized singing voice signal to the creating unit 400 that creates it and the mobile terminals owned by the audience who are the users other than the karaoke singing user among the plurality of users who have performed the login operation. and a processing unit 500 .

According to such a karaoke system 1, for example, when user U1 sings karaoke for song X in the first language, user U2 and user U3, via their own portable terminals, sing karaoke to user U1. can hear sounds similar to those of singing karaoke for song X in the second language. Therefore, a user whose native language is the second language can listen to the karaoke performance of the song X and the corresponding voice together as a song. In addition, since the lyrics in the second language are emitted as voice, users whose native language is the second language can understand the content of the lyrics aurally. That is, according to the karaoke system 1 according to the present embodiment, even users whose mother tongue is different from that of users who sing karaoke can enjoy singing along with karaoke performances.

In addition, in the above embodiment, the transmission processing unit 500 may transmit the second lyric data together with the synthesized singing voice signal. In this case, the mobile terminal can display the lyric telop based on the second lyric data on the display screen of the mobile terminal. Therefore, the audience can visually enjoy karaoke singing.

The song data storage unit 100 can also store reference data for evaluating karaoke singing in the second language for each song. In this case, the extraction unit 300 can correct the extracted singing voice data based on the reference data and output it.

The reference data is pitch data indicating the main melody of a piece of music. The reference data are used as criteria for scoring karaoke singing by users.

For example, in the example of the above-described embodiment, the pitch data extracted from the singing voice of user U1 is based on the pitch when karaoke is sung in Japanese. By the way, when comparing the pitch of a certain lyric sung in Japanese and the pitch of the song sung in English, even if the pitch at the beginning of the song is the same, the pitch is different when viewed as a syllable. There may be deviations.

Therefore, the extracting unit 300 replaces the portions of the extracted pitch data that differ in pitch between the first language and the second language with the pitch indicated by the reference data of the second language.

The creation unit 400 creates a synthesized singing voice signal using the corrected singing voice data. A voice based on such a synthesized singing voice signal is a voice similar to karaoke singing by a user whose native language is the second language. Therefore, if the second language is English, for example, the audience can hear the speech as more natural as English.

<Second embodiment>
Next, a karaoke system according to the second embodiment will be described. In this embodiment, an example will be described in which a synthesized singing voice signal is transmitted only to users whose mother tongue is different from that of users singing karaoke. A detailed description of the configuration similar to that of the first embodiment will be omitted.

The user information storage unit 10a according to the present embodiment stores native language information indicating the native language of the user in association with user identification information.

For example, the native language information of user U1 and user U2 shown in FIG. 1 is "Japanese". On the other hand, user U3's native language information is "English". The native language information can be stored together with voice quality data, for example.

The transmission processing unit 500 according to the present embodiment transmits the synthesized singing voice signal only to the audience whose native language is the second language based on the audience's native language information.

For example, as in the first embodiment, assume that user U1 sings song X in karaoke in Japanese.

In this case, the karaoke machine K transmits the user IDs of the audience members U2 and U3 to the server device S. FIG. The server device S reads the native language information of each user from the user information storage unit 10a based on the user IDs of the user U2 and the user U3, and transmits it to the karaoke machine K. FIG.

After that, the creating unit 400 creates a synthesized singing voice signal in accompaniment with user U1's karaoke singing.

The transmission processing unit 500 specifies the second language corresponding to the second lyric data used to generate the synthesized singing voice signal when transmitting the generated synthesized singing voice signal. The transmission processing unit 500 compares the specified second language with the language corresponding to the native language information received from the server device S. FIG. The transmission processing unit 500 transmits the synthesized singing voice signal only to users whose native language information matches the second language.

As described above, the user U1 sings the song X in karaoke in Japanese. Therefore, the transmission processing unit 500 transmits the synthesized singing voice signal for the user U3 whose native language is English whose language corresponds to the second language (English) of the music piece X and the language corresponding to the native language information. On the other hand, the transmission processing unit 500 does not transmit the synthesized singing voice signal to the user U2 (whose mother tongue is Japanese) whose language corresponding to the mother tongue information does not match the second language (English) of the song X.

Thus, the user information storage unit 10a in the karaoke system 1 according to the present embodiment stores the native language information indicating the native language of the user in association with the user identification information. Further, the transmission processing unit 500 transmits the synthesized singing voice signal only to the audience whose mother tongue is the second language based on the audience's mother tongue information.

In this way, by transmitting the synthesized singing voice signal only to the users whose native language is the same as the second language, the users can enjoy singing along with the karaoke performance. On the other hand, the karaoke system 1 transmits a synthesized singing voice signal to the mobile terminal of a user whose mother tongue is not the second language (for example, a user whose mother tongue is the first language being sung in karaoke). You can omit the sending process.

<Others>
It is also possible to configure the karaoke system 1 in the above embodiment only with the karaoke machine K. FIG.

Such a karaoke apparatus K converts performance data for karaoke performance, first lyric data in a first language, and second lyric data in a second language different from the first language into music. and a login processing unit 200 for acquiring user identification information of the user of the karaoke machine K according to the login operation performed via the portable terminal owned by the user of the karaoke machine K. , an extraction unit for extracting singing voice data including pitch data and volume data from the singing voice obtained when the user sings karaoke in the first language in accordance with the karaoke performance based on the performance data of a certain song 300, and a creation unit 400 that creates a synthesized singing voice signal based on the extracted singing voice data, the second lyric data read in accordance with the karaoke performance, and the voice quality parameter indicating the voice quality of the user singing karaoke. , a transmission processing unit 500 that transmits the created synthesized singing voice signal to the mobile terminals owned by the audience who are users other than the karaoke singing users among the plurality of users who have performed the login operation. have.

In this example, the voice quality parameters can be obtained from the server device S, for example. Also, a configuration corresponding to the user information storage unit 10a included in the server device S may be provided on the karaoke device K side. In this case, part of the storage area of the storage section 43 provided in the karaoke machine K functions as the user information storage section 10a. Alternatively, the voice quality parameter may be obtained each time the karaoke machine K is used.

In the above embodiment, two sets of lyric data (first lyric data and second lyric data) in different languages are stored for one piece of music. On the other hand, three or more pieces of lyric data in different languages (for example, lyric data in Japanese, lyric data in English, and lyric data in Chinese) may be stored for one song.

The above embodiments are presented as examples and are not intended to limit the scope of the invention. The above configurations can be implemented in combination as appropriate, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. The above-described embodiments and modifications thereof are included in the scope and spirit of the invention as well as the scope of the invention described in the claims and their equivalents.

1 karaoke system 10a user information storage unit 100 music data storage unit 200 login processing unit 300 extraction unit 400 creation unit 500 transmission processing unit K karaoke device S server device

Claims (5)

A karaoke system in which a server device and a karaoke device are communicably connected,
The server device
a user information storage unit that stores a voice quality parameter indicating the voice quality of the user in association with user identification information for identifying the user;
The karaoke device is
A song data storage unit that stores, for each song, performance data for karaoke performance, first lyric data in a first language, and second lyric data in a second language different from the first language. When,
A login processing unit that acquires user identification information of the user in response to a login operation performed via a mobile terminal owned by a user of the karaoke device;
Extracting singing voice data including pitch data and volume data from the singing voice obtained when the user sings karaoke in the first language in accordance with the karaoke performance based on the performance data of a certain song. Department and
The extracted singing voice data, the second lyric data of the certain song read in accordance with the karaoke performance, and the voice quality parameter acquired from the server device according to the user identification information of the user who sings the karaoke. a creating unit that creates a synthesized singing voice signal based on
A transmission processing unit that transmits the created synthetic singing voice signal to a mobile terminal owned by an audience member who is a user other than the karaoke singing user among the plurality of users who have performed the login operation;
karaoke system. 2. The karaoke system according to claim 1, wherein said transmission processing unit transmits said second lyric data together with said synthesized singing voice signal. The song data storage unit stores reference data for evaluating karaoke singing in the second language for each song,
3. The karaoke system according to claim 1, wherein the extracting unit corrects the extracted singing voice data based on the reference data and outputs the corrected singing voice data. The user information storage unit stores native language information indicating the native language of the user in association with the user identification information,
4. The transmission processing unit according to any one of claims 1 to 3, wherein the transmission processing unit transmits the synthesized singing voice signal only to the audience whose native language is the second language based on the native language information of the audience. A karaoke system according to one. A song data storage unit that stores, for each song, performance data for karaoke performance, first lyric data in a first language, and second lyric data in a second language different from the first language. When,
A login processing unit that acquires user identification information of a user of the karaoke machine in response to a login operation performed via a mobile terminal owned by the user;
Extracting singing voice data including pitch data and volume data from the singing voice obtained when the user sings karaoke in the first language in accordance with the karaoke performance based on the performance data of a certain song. Department and
a creation unit for creating a synthesized singing voice signal based on the extracted singing voice data, the second lyric data read in accordance with the karaoke performance, and a voice quality parameter indicating the voice quality of the user singing karaoke; ,
A transmission processing unit that transmits the created synthetic singing voice signal to a mobile terminal owned by an audience member who is a user other than the karaoke singing user among the plurality of users who have performed the login operation;
A karaoke device having

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