JP2008158047A - Play list creating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a play list creating system for supporting enthusiasm built up in the atmosphere by creating a play list that takes consideration into individual taste. <P>SOLUTION: The play list creating 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 music piece reproduction 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 plurality of digital reproduction devices is received, the music piece reproduction unit extracts the music piece having common items out of the play list of at least two digital reproduction devices, searches the extracted music piece from the music piece database, 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 playlist creation system.

2. Description of the Related Art Conventionally, a playlist creation system that creates a music order (playlist) to be reproduced is applied to a karaoke system or the like. This karaoke system includes a karaoke device and a remote controller that transmits a music selection instruction to the karaoke device (see, for example, 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. The music selected by each of these music selection methods is to be created as a playlist by the karaoke apparatus.
Japanese Patent Laid-Open No. 2002-312188

By the way, to go to karaoke, you may go with friends you know, or people with less acquaintances. In the former case, participants can freely select music without any hesitation, but in the latter case, the musical preference of each other is not so popular, so a safe music selection that appears on the hit chart is possible. Will be done.
Also, generally speaking, Western music is sung in karaoke, and likes and dislikes. For those who didn't listen to Western music, it could be painful, and those who wanted to sing Western music couldn't sing easily.
For this reason, with the conventional music selection method, in karaoke between people with little acquaintance, it is often impossible to sing karaoke and to fully enjoy karaoke.
An object of the present invention is to provide a playlist creation system that supports excitement on the spot by creating a playlist that takes into account personal musical preferences.

The playlist creation 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 music playback unit capable of communicating with the plurality of digital playback devices and having a music database;
When the music playback unit receives the music information data of the playlist transmitted from a plurality of the digital playback devices, at least two of the digital playback devices are selected from the playlists of the plurality of digital playback devices. Music having common items in the playlist is extracted, the extracted music is searched from the music database, and a reproduction music list is created based on the searched music.

The invention according to claim 2 is the playlist creation system according to claim 1,
The music reproduction unit is characterized in that when creating the reproduction music list, priority is given to music having a large number of common items.

The invention according to claim 3 is the playlist creation system according to claim 1 or 2,
Items common to the playlist include at least one of a song selection number, song name, artist name, album name, genre name, age, composer name, songwriter name, and tempo.

The invention according to claim 4 is the playlist creation system according to any one of claims 1 to 3,
The music playback unit includes the music database, and includes a playback device that plays back music in the music database, and a remote control device that transmits a music selection instruction to the playback device.
The playback device is communicable with the digital playback device, and when receiving the music information data of the playlist transmitted from the digital playback device, at least from the playlist of each of the plurality of digital playback devices Extracting music common to the playlists of two digital playback devices, searching the extracted music from the music database, and creating a playback music list based on the searched music .

The invention according to claim 5 is the playlist creation system according to any one of claims 1 to 3,
The music playback unit includes the music database, and includes a playback device that plays back music in the music database, and a remote control device that transmits a music selection instruction to the playback device.
The remote control device has the music database and is communicable with the digital playback device. When receiving the music information data of the playlist transmitted from the digital playback device, each of the plurality of digital playback devices A music piece that is common to the playlists of at least two of the digital playback devices is extracted from the playlist, the extracted music piece is searched from the music database, and a playback music list is obtained based on the searched music piece. And the reproduction music list is transmitted to the reproduction apparatus as a music selection instruction.

The invention described in claim 6 is the playlist creating 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 playback device,
The playback device is communicable with the management device, and receives the request instruction from the remote control device, and transmits the request instruction to the management device.

  According to the present invention, when the music information data of the playlist transmitted from the plurality of digital playback devices is received, the music playback unit receives at least two digital playback devices from the playlists of the plurality of digital playback devices. Extract music that has common items in the playlist, search the extracted music from the music database, and create a playback music list based on the searched music, so that each user's musical preference is drawn The playback music list will be created automatically. Thus, when a playlist that takes into account the musical preference of each user is created, it is possible to support the excitement of the venue even if the karaoke is between people with little acquaintance.

  First, the following embodiment will be described. FIG. 1 is a block diagram showing a schematic configuration of a karaoke system as a playlist creation system according to the present invention. As shown in FIG. 1, a karaoke system 1 includes a plurality of digital audio players (hereinafter referred to as DAP) 10A to 10C as digital playback apparatuses according to the present invention and a karaoke as a music playback unit according to the present invention. A unit 20 is provided.

  First, the DAPs 10A to 10C will be described. In the following description, the same parts of the DAPs 10A to 10C are denoted by the same reference numerals for description. As shown in FIG. 1, the DAPs 10 </ b> A to 10 </ b> C control each unit based on the operation of the communication unit 11, the display unit 12, the storage unit 13, the audio output unit 14, the operation unit 15, and the operation unit 15. A control unit 16 is provided.

The communication unit 11 communicates with an external device in accordance with a known standard such as IrDA, RF, BLUETOOTH, for example.
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 includes storage means such as a hard disk drive and 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.
For example, the operation unit 15 includes operation keys arranged on the surface of the apparatus main body of the DAPs 10 </ b> A to 10 </ b> C, and an input signal from the operation key 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.

  Next, the karaoke unit 20 will be described. As shown in FIG. 1, the karaoke unit 20 has a music database, a karaoke device 30 as a playback device that plays back music in the music database, and a remote control device 40 that transmits a music selection instruction to the karaoke device 30. Is provided.

  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.

In order to enable communication with the DAPs 10A to 10C, the DAP communication unit 31 is adapted to the communication standards of the DAPs 10A to 10C.
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 the playlist music information data transmitted from the DAPs 10A to 10C is received by the DAP communication unit 31, A reproduction music list is created based on these received contents.

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 plurality of DAPs 10A to 10C, the control unit 38 selects items common to the playlists of at least two DAPs 10A to 10C from among the playlists of the plurality of DAPs 10A to 10C. A music piece is extracted, the extracted music piece is searched from a music database, and a reproduction music list is created based on the searched music piece. Here, the common item in the playlist is at least one of a song selection number, song name, artist name, album name, genre name, era, composer name, songwriter name, and tempo constituting various information of each song. Is included.
Then, at the time of creating this reproduction music list, the control unit 38 gives priority to the music with many common items.
When the music extracted from the playlists of the plurality of DAPs 10A to 10C is not in the music database by this search, the control unit 38 transmits a request instruction for requesting addition of the music to the management device 50, and A playback music list is created excluding music.

  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 DAPs 10A to 10C to the karaoke apparatus 30 will be described. FIG. 2 is a timing chart showing operation timings of the DAPs 10 </ b> A to 10 </ b> C and the karaoke apparatus 30.

  As shown in FIG. 2, the owner of each DAP 10A to 10C first selects a playlist to be transmitted to the karaoke apparatus 30 with his / her DAP 10A to 10C (steps S1, T1, U1).

  In step S2, the control unit 16 of the DAP 10A controls the communication unit 11 to transmit and notify the karaoke apparatus 30 that the playlist A 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 10A, the control unit 38 of the karaoke device 30 prepares to receive the playlist (step V1), and then the DAP communication unit 31 is turned on. The device ID = a that is currently available is controlled and transmitted to the DAP 10A (step V2).

  On the DAP 10A side, when the device ID is received from the karaoke apparatus 30, the control unit 16 of the DAP 10A recognizes the acquisition of the device ID = a and controls the display unit 12 to display that (step S3).

  On the other hand, in step T2, the control unit 16 of the DAP 10B controls the communication unit 11 to transmit to the karaoke apparatus 30 that the playlist B selected in step T1 starts transmission (playlist transmission start signal). To do.

  When the karaoke device 30 receives the playlist transmission start signal from the DAP 10B, it controls the DAP communication unit 31 to transmit the currently available device ID = b to the DAP 10B (step V3).

  On the DAP 10B side, when the device ID is received from the karaoke apparatus 30, the control unit 16 of the DAP 10B recognizes the acquisition of the device ID = b and controls the display unit 12 to display that (step T3).

  Further, in step U2, the control unit 16 of the DAP 10C controls the communication unit 11 to transmit to the karaoke apparatus 30 that the playlist C selected in step U1 starts transmission (playlist transmission start signal). To do.

  When receiving the playlist transmission start signal from the DAP 10C, the karaoke device 30 side controls the DAP communication unit 31 to transmit the currently available device ID = c to the DAP 10C (step V4).

  On the DAP 10C side, when the device ID is received from the karaoke apparatus 30, the control unit 16 of the DAP 10C recognizes the acquisition of the device ID = c and controls the display unit 12 to display that (step U3).

  Thereafter, the control unit 38 of the karaoke apparatus 30 controls the DAP communication unit 31 to designate the DAP 10A with the device ID = a and transmit a music selection request (step V5).

  On the DAP 10A side, when the music selection request is received from the karaoke device 30, the control unit 16 of the DAP 10A controls the communication unit 11 to add the packet ID = a to the music information data in the playlist A to the karaoke device 30. Transmit (step S4), and the process ends.

  Thereafter, the control unit 38 of the karaoke apparatus 30 controls the DAP communication unit 31 to designate the DAP 10B with the device ID = b and transmit a music selection request (step V6).

  On the DAP 10B side, when the music selection request is received from the karaoke device 30, the control unit 16 of the DAP 10B controls the communication unit 11 to add the packet ID = b to the music information data in the playlist B to the karaoke device 30. Transmit (step T4), and the process ends.

  Thereafter, the control unit 38 of the karaoke apparatus 30 controls the DAP communication unit 31 to designate the DAP 10C with the device ID = c and transmit a music selection request (step V7).

  On the DAP 10C side, when the music selection request is received from the karaoke device 30, the control unit 16 of the DAP 10C controls the communication unit 11 to add the packet ID = c to the music information data in the playlist C to the karaoke device 30. Transmit (step U4), and the process ends.

  When all the playlists A to C are received, the control unit 38 of the karaoke apparatus 30 extracts songs having items common to at least two playlists from the playlists A to C (step V8). Here, the item is various pieces of information of the music constituting the music information data, and the items are common when the corresponding information is the same, for example, the artist name is the same or the music title is the same. Judge that. When there is no common item, the control unit 38 of the karaoke apparatus 30 controls the display unit 34 to display that there is no common music.

  And the control part 38 of the karaoke apparatus 30 searches the extracted music from the music database in the memory | storage part 35 (step V9). At the time of this search, for music that does not exist in the music database, the control unit 38 controls the music communication unit 32 to transmit a request instruction for requesting addition of the music to the management device 50.

  Then, the control part 38 of the karaoke apparatus 30 produces reproduction | regeneration music data based on the searched music, and complete | finishes (step V10).

  A series of these operations will be specifically described with reference to Tables 1 and 2. Table 1 shows examples of playlists of DAPs 10A to 10C, and Table 2 shows a reproduction music list created based on music information data of each playlist.

  When the control unit 38 of the karaoke apparatus 30 receives the playlists A to C from the DAPs 10A to 10C, the control unit 38 extracts music having items common to at least two playlists. In the case of the example in Table 1, the extracted music files and artist names in playlist A-3 and playlist B-2 are “closed: △ village Δ”, playlist A-5 The song name and artist name are also common in playlist B-3, “Moraku □: Nikka x”, and playlist A-7, playlist B-5, and playlist C-7 have the same artist name. "TO x IO: Ku x Ri ○ Pa", "To x n: Ku x Ri ○ Pa", "Ro x Z: Ku x Ri ○ Pa", playlist B-1 and playlist C-5 are the artist names. They are the common “Ro △ Son: ◯ △ Ito x”, “Wed ●, ○ △ Ito x”.

  Assuming that all these music pieces can be searched from the music database, the control unit 38 of the karaoke apparatus 30 creates a reproduction music list based on the searched music pieces. At this time, the reproduction music list is created in such a way that each user can sing one song at a time, and songs with many common items are given priority.

  If the basic song order is DAP10A-> DAP10B-> DAP10C, as shown in Table 2, first, a song that has many common terms with other songs in playlists B and C from playlist A (close the circle: [Delta] is registered as the first in the reproduction music list. Next, from the playlist B, a song having a lot of common items with the songs of the other playlists A and C (also x lol □: 2 red x) is registered second in the reproduction song list. Thereafter, a music piece (TO × IO: Ku × Ri ○ Pa) having many common items with the music pieces of the other play lists A and B is registered in the play list C in the third place in the play list C. Thereafter, a reproduction music list is created as shown in Table 2.

  In this embodiment, since the number of extracted songs is less than the maximum number of songs in the playback song list, the playback song list is created including songs other than the extracted songs, that is, songs without common items. In such a case, as shown in the music numbers 7 and 8 of Table 2, the music with the common term may be lower than the music without the common term. This is because the condition of “singing order” is reflected.

  When the reproduction music list is created, the control unit 38 of the karaoke apparatus 30 executes reproduction processing of each music according to the music order of the reproduction music list.

  As described above, according to the present embodiment, when the music information data of the playlists A to C transmitted from the plurality of DAPs 10A to 10C is received, the karaoke unit 20 receives the playlists A to C of the plurality of DAPs 10A to 10C, respectively. Since a music having a common item is extracted from C, the extracted music is searched from the music database, and a reproduction music list is created based on the searched music, so that each user's musical preference A playback music list that incorporates the is automatically created. Thus, when a playlist that takes into account the musical preference of each user is created, it is possible to support the excitement of the venue even if the karaoke is between people with little acquaintance.

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 karaoke system is exemplified as the playlist creation system according to the present invention, but any system may be used as long as it creates a playlist of digital music data. As a device other than the karaoke system, for example, a digital reproduction system including a plurality of communicable digital reproduction devices can be cited. In this case, at least one digital playback device among the plurality of digital playback devices constituting the system must have a function as a music playback unit according to the present invention.

  In the present embodiment, the digital audio player (DAP1) is 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.

  Further, in this embodiment, when determining whether or not the music is common, the music name and artist name of the music are used as the determination material. For example, other album names, genre names, ages, composer names, Music information data such as a lyricist name and tempo may be used as a judgment material.

  In the present embodiment, the process of creating a reproduction music list in which there is a common music in the playlists A to C sent from the DAPs 10A to 10C has been described. Of course it is created. Specifically, as shown in FIG. 3, of the playlists A to C, music that is not in the music database is excluded. In addition, from the playlists A and B having the number of songs larger than the number of songs in the playlist C having the minimum number of songs, the songs from the (minimum number of songs + 1) th and later are excluded in order to obtain the same number as the number of songs. And the reproduction | regeneration music list is created by arranging the remaining music so that each user may sing one by one in order.

In the present embodiment, the karaoke device 30 creates the playback song list based on the playlists A to C sent from the DAPs 10A to 10C. However, the playback song list may be created using a remote control device. In this case, the remote control device is equipped with a DAP communication unit that can communicate with the DAPs 10A to 10C and a storage unit that stores a music database. And if the control part of remote control apparatus receives the music information data of playlist A-C transmitted from DAP10A-10C in the communication part for DAP, from the playlist AC of each of several DAP10A-10C, Extract music common to at least two playlists A to C, search the extracted music from the music database, create a playback music list based on the searched music, and select the playback music list Is transmitted to the karaoke device.
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.

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 example of preparation of the reproduction | regeneration music list by the karaoke system of FIG.

Explanation of symbols

1 Karaoke system (playlist creation system)
20 Karaoke unit (music playback unit)
30 Karaoke equipment (playback equipment)
40 Remote control device 50 Management device

Claims (6)

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 music playback unit capable of communicating with the plurality of digital playback devices and having a music database;
When the music playback unit receives the music information data of the playlist transmitted from a plurality of the digital playback devices, at least two of the digital playback devices are selected from the playlists of the plurality of digital playback devices. A playlist creation system that extracts songs having common items in the playlist, retrieves the extracted songs from the song database, and creates a playback song list based on the retrieved songs . The playlist creation system according to claim 1,
When creating the reproduction music list, the music reproduction unit gives priority to music having many common items. In the playlist creation system according to claim 1 or 2,
The common items in the playlist include at least one of a song selection number, song name, artist name, album name, genre name, era, composer name, songwriter name, and tempo. Creation system. In the playlist creation system according to any one of claims 1 to 3,
The music playback unit includes the music database, and includes a playback device that plays back music in the music database, and a remote control device that transmits a music selection instruction to the playback device.
The playback device is communicable with the digital playback device, and when receiving the music information data of the playlist transmitted from the digital playback device, at least from the playlist of each of the plurality of digital playback devices Extracting music common to the playlists of the two digital playback devices, searching the extracted music from the music database, and creating a playback music list based on the searched music Playlist creation system. In the playlist creation system according to any one of claims 1 to 3,
The music playback unit includes the music database, and includes a playback device that plays back music in the music database, and a remote control device that transmits a music selection instruction to the playback device.
The remote control device has the music database and is communicable with the digital playback device. When receiving the music information data of the playlist transmitted from the digital playback device, each of the plurality of digital playback devices A music piece that is common to the playlists of at least two of the digital playback devices is extracted from the playlist, the extracted music piece is searched from the music database, and a playback music list is obtained based on the searched music piece. Is created, and the reproduction music list is transmitted to the reproduction apparatus as a music selection instruction. The playlist creation 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 playback device,
The play list creation system, wherein the playback device is communicable with the management device, and upon receiving a request instruction from the remote control device, transmits the request instruction to the management device.

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