JP2008158048A - Karaoke system and digital reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance convenience in the music selection of Karaoke. <P>SOLUTION: The Karaoke system comprises a digital reproduction device, including a classification function in which multiple music piece data is stored and the multiple music piece data is classified as the play list, and a communication function; and a karaoke unit, including a music piece data base which is communicable with the plurality of digital reproduction devices. When a music piece information data of the play list transmitted from the digital reproduction devices is received, the karaoke unit searches the music piece that corresponds to the music piece information data, and creates a reproduction music piece list, based on the searched music piece. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a karaoke system and a digital playback device.

Conventionally, a karaoke system has been composed of a karaoke device and a remote controller that transmits a music selection instruction to the karaoke device (for example, see Patent Document 1). As a music selection method of this karaoke system, there are a method of selecting music by operating an operation key provided in the karaoke apparatus, and a method of selecting music by an operation key provided on a remote control or a touch panel. In recent years, music to be sung is registered in advance on a mobile phone capable of infrared communication, and the music is selected by operating the mobile phone and transmitting the music information of the registered music to the karaoke device when performing karaoke. A method has also been realized.
Japanese Patent Laid-Open No. 2002-312188

However, among the above-described music selection methods, if the music selection method is performed from a karaoke device or a remote controller, the user needs to remember or search for a favorite song each time, and cannot enjoy karaoke during that time. On the other hand, the method of selecting music by registering it in advance with a mobile phone saves the trouble of selecting music at the time of karaoke, so that it is possible to concentrate on karaoke compared with the above method. By the way, even when selecting music with a mobile phone, it is necessary for the user to select a song that the user wants to sing from a group of songs registered in advance in the mobile phone and send it to the karaoke device. I couldn't.
The subject of this invention is improving the convenience at the time of the music selection of karaoke more.

The karaoke system in the invention according to claim 1 is:
A digital playback device having a classification function and a communication function for storing a large number of music data and classifying the large number of music data as a playlist;
A karaoke unit capable of communicating with the digital playback device and having a music database;
When the karaoke unit receives the music information data of the playlist transmitted from the digital playback device, the karaoke unit searches the music database for music corresponding to the music information data, and plays the music list based on the searched music It is characterized by creating.

The invention according to claim 2 is the karaoke system according to claim 1,
The karaoke unit is communicable with an external management device, and when there is no music corresponding to the music information data in the music database, the karaoke unit transmits a request instruction for requesting addition of the music to the management device. It is characterized by that.

The invention according to claim 3 is the karaoke system according to claim 1 or 2,
The karaoke unit includes the music database, and includes a karaoke device that reproduces music in the music database, and a remote control device that transmits a music selection instruction to the karaoke device,
The karaoke device is communicable with the digital playback device, and upon receiving the music information data of the playlist transmitted from the digital playback device, searches the music database for music corresponding to the music information data, A reproduction music list is created based on the searched music.

The invention according to claim 4 is the karaoke system according to claim 3,
The karaoke apparatus is communicable with the management apparatus, and when there is no music corresponding to the music information data in the music database, a request instruction for requesting addition of the music is transmitted to the management apparatus. It is characterized by.

The invention according to claim 5 is the karaoke system according to claim 1 or 2,
The karaoke unit includes the music database, and includes a karaoke device that reproduces music in the music database, and a remote control device that transmits a music selection instruction to the karaoke device,
The remote control device has the music database, is communicable with the digital playback device, and receives the music information data of the playlist transmitted from the digital playback device, the music corresponding to the music information data Is searched from the music database, a reproduction music list is created based on the searched music, and the reproduction music list is transmitted to the karaoke apparatus as a music selection instruction.

The invention according to claim 6 is the karaoke system according to claim 5,
If the music corresponding to the music information data is not in the music database, the remote control device transmits a request instruction to request addition of the music to the karaoke device,
The karaoke apparatus is communicable with the management apparatus, and receives the request instruction from the remote control apparatus, and transmits the request instruction to the management apparatus.

The karaoke system in the invention of claim 7 is:
A digital playback device having a classification function and a communication function for storing a large number of music data and classifying the large number of music data as a playlist;
A karaoke unit capable of communicating with the digital playback device and having a music database;
Upon receiving the music database from the karaoke unit, the digital playback device searches the music information of the playlist from the music database, creates a playback music list based on the searched music, and plays the playback music list. Is transmitted to the karaoke unit.

The digital playback device in the invention according to claim 8 is:
Classifying means for storing a large number of music data and classifying the large number of music data as a playlist,
It has a communication means which transmits the playlist classified by the said classification means as music selection candidate information of a karaoke unit, It is characterized by the above-mentioned.

The digital playback device according to the invention of claim 9 is:
A communication means for receiving a music database from a karaoke unit;
A large number of music data are stored, and a classification means for classifying the large number of music data as a playlist,
The classification means searches the music information data of the playlist from the music database received by the communication means, creates a reproduction music list based on the searched music,
The communication means transmits the reproduction music list created by the classification means as music selection candidate information of the karaoke unit.

  According to the present invention, when receiving the music information data of the playlist transmitted from the digital playback device, the karaoke unit searches the music database for music corresponding to the music information data, and plays the music list based on the searched music. Therefore, a reproduction music list that suits the user's preference is automatically created using the playlist of the digital reproduction device. Digital playback devices are carried by individual users, and their preferences are reflected in the playlist. Therefore, when music is automatically selected based on a playlist in the digital playback device, convenience at the time of music selection is improved, and the user can fully enjoy karaoke more than before.

  First, the following embodiment will be described. FIG. 1 is a block diagram showing a schematic configuration of a karaoke system according to the present invention. As shown in FIG. 1, the karaoke system 1 is provided with a digital audio player (hereinafter referred to as DAP) 10 as a digital playback apparatus according to the present invention and a karaoke unit 20.

  First, the DAP 10 will be described. As shown in FIG. 1, the DAP 10 includes a communication unit 11, a display unit 12, a storage unit 13, an audio output unit 14, an operation unit 15, and a control unit that controls each unit based on the operation of the operation unit 15. 16 are provided.

The communication unit 11 is a communication unit according to the present invention, and performs communication with an external device according to a known standard such as IrDA, RF, BLUETOOTH, for example. The communication unit 11 transmits a playlist to be described later as song selection candidate information for the karaoke unit 20.
The display unit 12 includes a display unit such as a liquid crystal display or an organic EL display, and displays various types of information.

  The storage unit 13 is a classification unit according to the present invention, and includes a storage unit such as a hard disk drive or a flash memory, and stores a large number of music data. Here, each piece of music data is a digital signal of the sound waveform of the music, and is classified as a playlist for each predetermined condition or for each user's preference. The storage unit 13 uses the various pieces of information (for example, song name, artist name, album name, genre name, era, composer name, songwriter name, tempo, etc.) of each song constituting each playlist as song information data for each playlist. Remember every time.

The audio output unit 14 outputs an audio signal based on music data to headphones or speakers connected to the audio output connector.
The operation unit 15 includes, for example, operation keys disposed on the surface of the apparatus main body of the DAP 10, and an input signal from the operation keys is output to the control unit 16.

  The control unit 16 includes a CPU, a RAM, a ROM, and the like, and controls each unit based on an input signal from the operation unit 15. For example, when various pieces of music information are selected by the operation unit 15, the control unit 16 controls the storage unit 13 to classify a large number of pieces of music in the storage unit 13 for each selected information and create a playlist. Let That is, the control means 16 also constitutes a classification means according to the present invention.

  Next, the karaoke unit 20 will be described. As shown in FIG. 1, the karaoke unit 20 includes a music database, and includes a karaoke device 30 that reproduces music in the music database, and a remote control device 40 that transmits a music selection instruction to the karaoke device 30. Yes.

  The karaoke apparatus 30 includes a DAP communication unit 31, a music communication unit 32, a remote control communication unit 33, a display unit 34, a storage unit 35, an audio output unit 36, an operation unit 37, and an operation unit. A control unit 38 that controls each unit based on the operation 37 is provided.

The DAP communication unit 31 is adapted to the communication standard of the DAP 10 in order to enable communication with the DAP 10.
The music communication unit 32 is communicably connected to an external management device 50 that manages music data. The music communication unit 32 receives music data distributed from the management device 50 or does not exist in the karaoke device 30. A request instruction for requesting a music piece to the management apparatus 50 is transmitted.
The remote control communication unit 33 is adapted to the communication standard of the remote control device 40 in order to enable communication with the remote control device 40.

  The display unit 34 includes a monitor 34a that displays lyrics, video, and other information of the song being played, and an electric bulletin board that displays the song selection number of the song being played, the song selection number of the reserved song, the song name, and the like. 34b.

  The storage unit 35 stores a database of music (music database) that can be distributed from the management device 50. In the music database, various pieces of information (for example, song selection number, song name, artist name, album name, genre name, age, composer name, songwriter name, tempo, etc.) are collected.

The audio output unit 36 outputs an audio signal based on music data to a speaker connected to the audio output connector.
The operation unit 37 includes, for example, operation keys arranged on the surface of the karaoke apparatus 30, and an input signal from the operation keys is output to the control unit 38.

  The control unit 38 includes a CPU, a RAM, a ROM, and the like, and controls each unit based on an input signal from the operation unit 15. When the control unit 38 receives the music selection instruction transmitted from the remote control device 40 by the remote control communication unit 33 or receives the music information data of the playlist transmitted from the DAP 10 by the DAP communication unit 31, A playback music list is created based on the received content.

For example, when a music selection instruction is received from the remote control device 40, the control unit 38 creates a reproduction music list in the order of the received music.
On the other hand, when the music information data is received from the DAP 10, the control unit 38 searches the music database in the storage unit 35 for music corresponding to the music information data, and generates a reproduction music list based on the searched music. It is designed to create.
If there is no music corresponding to the music information data in the music database as a result of this search, the control unit 38 transmits a request instruction for requesting the addition of the music to the management device 50, and the music to be reproduced is excluded from the music. Create a list.

  When the reproduction music list is created, the control unit 38 controls the music communication unit 32 to receive music data from the management device 50, and controls the audio output unit 36 based on the acquired music data. The music data is played back in the order of the playback music list.

  The remote control device 40 is provided with an operation unit 41, a transmission unit 42, and a control unit 43 for controlling them.

The operation unit 41 is used to input a music selection instruction for designating a song to be sung. The operation unit 41 includes, for example, operation keys or a touch panel disposed on the surface of the remote control device 40, and a music selection instruction signal from the operation keys or the touch panel is output to the control unit 43.
The transmission part 42 communicates with the karaoke apparatus 30 corresponding to well-known standards, such as IrDA, RF, BLUETOOTH, for example.

  The control unit 43 includes a CPU, a RAM, a ROM, and the like, and controls the transmission unit 42 so as to transmit a music selection instruction signal from the operation unit 41.

Hereinafter, the operation of the present embodiment will be described.
First, a process when a playlist is transmitted from the DAP 10 to the karaoke apparatus 30 as music selection candidate information will be described. FIG. 2 is a timing chart showing each operation timing of the DAP 10 and the karaoke apparatus 30.

  As shown in FIG. 2, the user first selects a playlist to be transmitted to the karaoke apparatus 30 using his / her DAP 10 (step S1). At this time, the control unit 16 of the DAP 10 resets the variable M to 0 and sets the variable N to 1.

  In step S2, the control unit 16 of the DAP 10 controls the communication unit 11 to transmit and notify the karaoke apparatus 30 that the playlist selected in step S1 starts transmission (playlist transmission start signal).

  On the karaoke device 30 side, when the playlist transmission start signal is received from the DAP 10, the control unit 38 of the karaoke device 30 prepares to receive the playlist by setting the variable R to 1 (step T1). Thereafter, the DAP communication unit 31 is controlled to transmit a currently available device ID to the DAP 10 (step T2).

  On the DAP 10 side, when the device ID is received from the karaoke apparatus 30, the control unit 16 of the DAP 10 controls the communication unit 11 to add a device ID and request a packet ID request signal for requesting the N-th packet ID. 30 (step S3).

  On the karaoke device 30 side, when the packet ID request signal from the DAP 10 is received, the control unit 38 of the karaoke device 30 controls the DAP communication unit 31 to transmit a currently available packet ID to the DAP 10 (step T3). ).

  On the DAP 10 side, when the packet ID is received from the karaoke device 30, the control unit 16 of the DAP 10 controls the communication unit 11, and the Nth song name to which the device ID and the packet ID are added is sent to the karaoke device 30 as song information data. Transmit (step S4).

  On the karaoke device 30 side, when the Nth song name to which the device ID and the packet ID are added is received from the DAP 10, the control unit 38 of the karaoke device 30 controls the DAP communication unit 31 to receive the Nth song name. Is transmitted to the DAP 10 to indicate that the process has been completed (step T4).

  On the DAP 10 side, when receiving a notification that the reception of the song title has been completed from the karaoke device 30, the control unit 16 of the DAP 10 controls the communication unit 11 to specify the artist name of the Nth song to which the device ID and packet ID are added as the song information. It transmits to the karaoke apparatus 30 as data (step S5).

  On the karaoke device 30 side, when the Nth artist name to which the device ID and the packet ID are added is received from the DAP 10, the control unit 38 of the karaoke device 30 controls the DAP communication unit 31 to control the Nth artist name. Is transmitted to the DAP 10 (step T5).

  On the DAP 10 side, when the fact that the reception of the artist name has been completed is received from the karaoke device 30, the control unit 16 of the DAP 10 controls the communication unit 11 to end the transmission of the N-th song information data by adding the packet ID. A notification is transmitted to the karaoke apparatus 30 (step S6). In this embodiment, the case where the DAP 10 transmits only the song name and artist name of the song as song information data to the karaoke apparatus 30 has been described as an example. However, the album name, genre name, age, composer name, songwriter The name, tempo, etc. may be transmitted as music information data.

  On the karaoke device 30 side, when the transmission end notification of the music information data is received from the DAP 10, the control unit 38 of the karaoke device 30 stores the music corresponding to the Nth music information data (song name, artist name) in the storage unit 35. A search is made from the music database (step T6).

  In step T7, the control unit 38 of the karaoke apparatus 30 moves to step T8 when the music corresponding to the Nth music information data is in the music database of the storage unit 35 by the search in step T6. If not, the process proceeds to step T9.

  In step T8, the control unit 38 of the karaoke apparatus 30 registers the searched music piece as the R music piece in the reproduction music list, then increments the variable R by 1, and proceeds to step T10. If there are a plurality of songs corresponding to the Nth song information data in the song database, all the corresponding songs are registered as candidate songs in the R song of the reproduction song list.

  In step T9, the control unit 38 of the karaoke device 30 controls the music communication unit 32 to transmit a request instruction for requesting addition of a search target song to the management device 50, and proceeds to step T10.

  In step T10, the control unit 38 of the karaoke apparatus 30 controls the DAP communication unit 31 to transmit to the DAP 10 whether or not the search target song exists in the song database, and then releases the packet ID.

  On the DAP 10 side, when the presence / absence of the search target song is received from the karaoke apparatus 30, the control unit 16 of the DAP 10 increments the variable N by one, and proceeds to step S7. At this time, the control unit 16 also increments the variable M by 1 when “search target song exists” is received.

  In step S7, the control unit 16 of the DAP 10 determines whether or not the variable N is the total number of songs in the playlist. If the variable N is not the total number of songs in the playlist, the process proceeds to step S3, where the variable N is If it is the total number of songs in the playlist, the process proceeds to step S8. Thereby, the music information data of all the songs in the playlist is transmitted to the karaoke apparatus 30, and the reproduction music list including the music in the music database is created on the karaoke apparatus 30 side.

  In step S8, the control unit 16 of the DAP 10 controls the communication unit 11 to transmit and notify the karaoke apparatus 30 that the music information data for all the songs in the playlist has been transmitted (playlist transmission completion signal). .

  On the karaoke device 30 side, when the playlist transmission completion signal is received from the DAP 10, the control unit 38 of the karaoke device 30 ends the reception state of the playlist, releases the device ID (step T11), and then for DAP. The communication unit 31 is controlled to transmit to the DAP 10 that the playlist transmission completion signal has been received.

  On the DAP 10 side, when receiving the fact that the playlist transmission completion signal has been received from the karaoke device 30, the control unit 16 of the DAP 10 controls the display unit 12 to display that the number of search matching songs is M songs ( Step S9).

  A series of these operations will be specifically described with reference to FIG. FIG. 3 shows an example of a playlist in the DAP 10 and a reproduced song list created based on the song information data of the playlist.

  For example, when a playlist composed of four songs shown in FIG. 3 is transmitted from the DAP 10 to the karaoke apparatus 30, two songs ("" ○ is closed: △ Village ○ Ken ”,“ △ Village ○ Ken Medley: △ Village ○ Ken ”). In this case, each piece of music is registered first in the reproduction music list as a music selection candidate.

  Next, if one song from the song database is searched for the song corresponding to the second song “Re ○ △ Re ○ □: Hira ○ □ E”, in this case, one searched song is selected as a song selection candidate in the reproduction song list. Registered second.

  In addition, two songs corresponding to the third song “× Fuku ×: ● Name” are stored in the music database (“× Fuku ×: ● Name”), “× Fuku × (JAZZ version): ●. In this case, each piece of music is registered as the third song selection candidate in the reproduction music list.

Then, if the music corresponding to the fourth song “collecting“ XX ”: E × where ○” is not retrieved from the song database, a request instruction to add the song is transmitted to the management apparatus 50 in this case. It will be.
As described above, a reproduction music list in which candidates for three songs are listed is created from the above-described four music playlist examples.

  When the reproduction music list is created, the control unit 38 of the karaoke apparatus 30 executes music reproduction processing. FIG. 4 is a flowchart showing the flow of the reproduction process. As shown in FIG. 4, when the reproduction process is started, first, the control unit 38 of the karaoke apparatus 30 determines whether or not the music is registered in the reproduction music list (step T21) and is registered. If YES in step S22, the process advances to step T22. If not registered, the reproduction process ends.

  In step T22, the control unit 38 of the karaoke apparatus 30 reads the first registered song in the reproduction song list.

  In step T23, the control unit 38 of the karaoke apparatus 30 determines whether or not there are a plurality of candidates in the first registered song. If it is a single candidate, the process proceeds to step T24. Moves to step T25.

  In step T24, the control unit 38 of the karaoke apparatus 30 controls the music communication unit 32 to acquire the music data of the music that is a single candidate from the management apparatus 50, and outputs a sound based on the acquired music data. The unit 36 is controlled to reproduce the music, and the process proceeds to step T28.

  In step T25, the control unit 38 of the karaoke apparatus 30 controls the display unit 34 to display a music information data list of songs that are candidates for the registered music on the monitor 34a, and prompts the user to select a music.

  In step T26, the control unit 38 of the karaoke device 30 determines whether or not a music selection instruction signal is input by the operation unit 37 of the karaoke device 30 or the operation unit 41 of the remote control device 40, and the selection instruction signal is input. If not, the process waits. If input, the process proceeds to step T27.

  In step T27, the control unit 38 of the karaoke device 30 controls the music communication unit 32 to acquire music data of the selected music from the management device 50, and the audio output unit 36 based on the acquired music data. Is controlled to reproduce the music, and the process proceeds to step T28.

  In step T28, the control unit 38 of the karaoke apparatus 30 deletes the first registered song from the reproduction song list, and prepends the subsequent registered song group.

  In step T29, the control unit 38 of the karaoke apparatus 30 determines whether or not the reproduction operation is continuing. If the reproduction operation is continuing, the control unit 38 maintains the state as it is, and if it is stopped, the control unit 38 performs step T21. Migrate to Here, the stop of the reproduction operation is executed when a reproduction stop instruction is input by the operation unit 37 of the karaoke device 30 or the operation unit 41 of the remote control device 40 or the reproduction of the music is finished.

  As described above, according to the present embodiment, when the music information of the playlist transmitted from the DAP 10 is received, the karaoke apparatus 30 searches the music database for the music corresponding to the music information data, and sets the searched music as the searched music. Since the reproduction music list is created based on this, a reproduction music list that meets the user's preference is automatically created using the playlist of DAP10. The DAP 10 is carried by each user, and the preference of the user is reflected in the playlist. Therefore, if the music is automatically selected based on the playlist in the DAP 10, the convenience at the time of music selection is improved, and the user can fully enjoy karaoke more than before.

Of course, the present invention is not limited to the above embodiment and can be modified as appropriate.
For example, in the present embodiment, the digital audio player (DAP1) has been described as an example of the digital playback device. However, any playback device may be used as long as it stores digital music data and has a communication function. . Examples of devices other than DAP include a mobile phone having a music playback function, a portable game device, a digital video playback device, and the like.

  In this embodiment, as shown in FIG. 2, when the music information of the playlist is sent to the karaoke apparatus 30 side, it is sent for each item (song name and artist name individually). You may send it.

  Further, in the present embodiment, as illustrated in FIG. 3, the case where the user selects a plurality of candidate songs has been described as an example, but the control unit 38 of the karaoke apparatus 30 automatically selects the candidate songs. May be. In this case, selection criteria include those that are frequently used among candidate songs and those that have a high search hit rate.

  In the present embodiment, the playback song list is created based on the order of songs registered in the playlist. However, the order of songs in the playback song list is not limited to this, for example, They may be created in a random order or in an order based on user selection.

In the present embodiment, the karaoke device 30 creates a playback song list based on the playlist sent from the DAP 10, but the playback song list may be created by a remote control device. In this case, the remote control device is equipped with a DAP communication unit that can communicate with the DAP 10 and a storage unit that stores a music database. When the music information data of the playlist transmitted from the DAP 10 is received by the DAP communication unit, the control unit of the remote control device searches the music database in the storage unit for the music corresponding to the music information data. A reproduction music list is created based on the music, and the reproduction music list is transmitted from the transmission unit to the karaoke apparatus 30 as a music selection instruction.
In addition, when there is no music corresponding to the music information data in the music database, the remote control device may transmit a request instruction for requesting addition of the music to the karaoke device 30 device. In this case, when the karaoke apparatus receives a request instruction from the remote control apparatus, the karaoke apparatus transmits the request instruction to the management apparatus.

  Also, a playback music list may be created by a digital playback device. Specifically, when the communication unit 11 receives the music database from the karaoke unit, the digital playback device controls the storage unit 13 to search the music information data of the playlist from the music database, A reproduction music list is created based on the searched music, and the reproduction music list is transmitted from the communication unit 11 to the karaoke unit.

It is a block diagram showing the main control structure of the karaoke system which concerns on this embodiment. It is a timing chart showing each operation timing of DAP and karaoke apparatus with which the karaoke system of FIG. 1 is equipped. It is explanatory drawing showing the relationship between the reproduction | regeneration music list produced | generated by the process of FIG. 2, and a play list. It is a flowchart showing the reproduction | regeneration processing of the karaoke apparatus with which the karaoke system of FIG. 1 is equipped.

Explanation of symbols

1 Karaoke system 10 DAP (digital playback device)
11 Communication unit (communication means)
13 Storage unit (classification means)
16 Control unit (classification means)
20 Karaoke unit 30 Karaoke device 40 Remote control device 50 Management device

Claims (9)

A digital playback device having a classification function and a communication function for storing a large number of music data and classifying the large number of music data as a playlist;
A karaoke unit capable of communicating with the digital playback device and having a music database;
When the karaoke unit receives the music information data of the playlist transmitted from the digital playback device, the karaoke unit searches the music database for music corresponding to the music information data, and plays the music list based on the searched music A karaoke system characterized by creating. The karaoke system according to claim 1,
The karaoke unit is communicable with an external management device, and when there is no music corresponding to the music information data in the music database, the karaoke unit transmits a request instruction for requesting addition of the music to the management device. Karaoke system characterized by that. The karaoke system according to claim 1 or 2,
The karaoke unit includes the music database, and includes a karaoke device that reproduces music in the music database, and a remote control device that transmits a music selection instruction to the karaoke device,
The karaoke device is communicable with the digital playback device, and upon receiving the music information data of the playlist transmitted from the digital playback device, searches the music database for music corresponding to the music information data, A karaoke system characterized in that a reproduction music list is created based on searched music. The karaoke system according to claim 3,
The karaoke apparatus is communicable with the management apparatus, and when there is no music corresponding to the music information data in the music database, a request instruction for requesting addition of the music is transmitted to the management apparatus. Karaoke system featuring The karaoke system according to claim 1 or 2,
The karaoke unit includes the music database, and includes a karaoke device that reproduces music in the music database, and a remote control device that transmits a music selection instruction to the karaoke device,
The remote control device has the music database, is communicable with the digital playback device, and receives the music information data of the playlist transmitted from the digital playback device, the music corresponding to the music information data Is searched from the music database, a reproduction music list is created based on the searched music, and the reproduction music list is transmitted to the karaoke apparatus as a music selection instruction. The karaoke system according to claim 5,
If the music corresponding to the music information data is not in the music database, the remote control device transmits a request instruction to request addition of the music to the karaoke device,
The karaoke apparatus is communicable with the management apparatus, and upon receiving a request instruction from the remote control apparatus, transmits the request instruction to the management apparatus. A digital playback device having a classification function and a communication function for storing a large number of music data and classifying the large number of music data as a playlist;
A karaoke unit capable of communicating with the digital playback device and having a music database;
Upon receiving the music database from the karaoke unit, the digital playback device searches the music information of the playlist from the music database, creates a playback music list based on the searched music, and plays the playback music list. Is transmitted to the karaoke unit. Classifying means for storing a large number of music data and classifying the large number of music data as a playlist,
A digital reproduction apparatus comprising: communication means for transmitting music information data of a playlist classified by the classification means as music selection candidate information of a karaoke unit. A communication means for receiving a music database from a karaoke unit;
A large number of music data are stored, and a classification means for classifying the large number of music data as a playlist,
The classification means searches the music information data of the playlist from the music database received by the communication means, creates a reproduction music list based on the searched music,
The digital communication apparatus characterized in that the communication means transmits the reproduction music list created by the classification means as music selection candidate information of the karaoke unit.

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