JP2005085303A - Reproducing device, and method and program for reproducing music data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproducing device capable of reproducing a play list including a piece of music from the name of the piece of music included in the play list even when specific information of the play list is unknown. <P>SOLUTION: The reproducing device 1 having a duplication means for duplicating music data recorded in a music CD set on a reading part 16 to a HDD 21 comprises a list creating means for creating the play list of the music data recorded in the music CD, a list holding means for holding the play list created by the list creating means, a list specifying means for specifying the play list held by the list holding means based on the music information inputted from outside, and a reproducing means for reproducing the music data duplicated on the HDD 21 according to the play list specified by the list specifying means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a playback apparatus, a music data playback method, and a music data playback program.

  In recent years, with the advancement of digital technology, digital audio systems that record and reproduce audio signals as digital signals have become widespread. For example, music CDs (compact discs), MDs (mini discs), etc. are used as information storage media for digital signals corresponding to audio signals. By reading digital signals stored in these information storage media, audio sound is read out. Is played.

  Recently, music data compression technology that compresses music data with high quality and high efficiency has attracted attention, and includes MP3 (MPEG1 audio layer III), TwinVQ (Transform domain weighted Vector Quantization), ATRAC3 (Adaptive transform Transform). Various compression / encryption schemes such as Coding3) are widely used.

  For example, when the MP3 method is used, the music data can be compressed to a data amount of about 1/10 with almost no loss in quality. That is, 650 MB of music data corresponding to one conventional music CD (about 74 minutes) can be compressed to a data amount of around 65 MB while maintaining the sound quality. In other words, music data corresponding to 10 conventional music CDs can be compressed and stored in one CD by compressing the music data using the MP3 method or the like.

  As described above, a type of reproducing apparatus that stores music data compressed by various compression methods in various information storage media and reproduces music based on the compressed music data has become widespread.

  In addition, TOC (Table Of Contents) information recorded on music media such as music CDs is used to search for data (music information) that is not recorded on music media such as artist names, CD titles, and track titles. An apparatus for managing the data has been proposed.

  In addition to the audio signal, the music CD includes data such as the number of tracks, the start address of each track, and the performance time for each track. These data are called TOC information, and are written in the lead-in area on the inner periphery side of the CD. In a general audio apparatus, a track number and a performance time are displayed on the display while a music CD is being played. However, since data such as artist name, CD title, and track title (song name) are not recorded on the music CD, it is not possible to display the name or artist name of the music being played.

  For this reason, in recent years, information (music information) such as artist name, music genre, CD title, and track title not included in the TOC information is searched from the database using the TOC information included in the music CD. Music management software that manages data has been developed.

  In addition, a database (CDDB) for use in such music information management is disclosed on the Internet. This CDDB is a database for searching and recognizing music information recorded on a music CD.

  In this type of music information management system, for example, when a music CD is loaded into the CD drive of a client computer, the computer sends the TOC information read by the CD drive to a predetermined CDDB server via a communication line. Send. The server on the CDDB side searches the database using the TOC information sent from the client as a search key, and transmits information such as the CD title, artist name, music genre, and track title of the CD to the client.

  The client creates a playlist by associating the music information sent from the server on the CDDB side with the TOC information, and stores the created playlist in the storage device of the computer. When playing back a music CD, a playlist is provided to the user.

  Patent Document 1 proposes an audio player that can create such a playlist.

JP 2002-23771 A

  However, in the above-described playback device, when a song is recorded on a hard disk or the like from a music CD or the like, the above playlist is created on the playback device side, and thereafter, the user selects a song from each playlist. Thus, songs on the hard disk can be played back. This playlist can be set, for example, by artist, album, ALL (all songs), etc., and the user can select from any playlist. You can select an album or song. For example, if you want to play an album titled "AAA" and you don't remember the title "AAA", specify this album from any playlist There was an inconvenience that I could not do.

  Even if the user does not remember the title of the album, the user often remembers only the title of the single-cut song in the album (for example, “abc”). In such a case, the “abc” Even if the song “ALL” is selected from the playlist of “ALL”, only one of the songs can be reproduced, but the whole album cannot be reproduced.

  Therefore, the present invention solves the above-described problems of the prior art, and even when the information for specifying the playlist is not known, the playback apparatus and the song data that can reproduce the playlist including the song from the song information included in the playlist An object of the present invention is to provide a reproduction method and a music data reproduction program.

  In order to solve the above-described problems, a playback device according to the present invention is a playback device that can play back a plurality of song data stored in a storage unit in units of playlists, and that creates a playlist of song data including song name information. A list creation means, a list holding means for holding a playlist created by the playlist creation means, a song name input means for inputting a song name, and a playlist having song name information input by the song name input means are held in the list And a list search means for searching from a playlist held in the means, and a playback means for playing back the song data stored in the storage means in accordance with the playlist searched by the list search means. .

  According to the present invention, the playlist is searched based on the song title information input by the song title input means, and the song data is reproduced according to the searched playlist, so that the user can specify the playlist. Even when the information, for example, the title of the album added to the playlist is not known, the playlist including the song can be identified and reproduced from the song information such as the song name included in the playlist. Thereby, user operability is improved.

  In the playback apparatus according to the present invention, in the above configuration, the song name input unit displays a list of song names of a plurality of song data stored in the storage unit, and inputs a song name selected from the song name list. It is characterized by that. According to the present invention, since the music title selected from the music title list displayed in the list is input, the input of the music title by the user is simplified.

  The playback apparatus according to the present invention further includes dialog display means for displaying a dialog for allowing the user to input a song name included in the playlist held in the list holding means in the above configuration. Features. According to the present invention, since the dialog for allowing the user to input the song name included in the playlist held in the list holding means is displayed, the user can select the song information based on this display. Can be entered.

  The playback apparatus according to the present invention may further include a dialog display for displaying a dialog for allowing the user to select a playlist to be played back when there are a plurality of playlists searched by the list search means. It has the means. According to the present invention, a playlist desired by a user can be reproduced.

  The song data playback method of the present invention is a song data playback method capable of playing back a plurality of song data stored in the storage means in units of playlists, wherein a playlist for creating song data including song name information is created. A list creation step, a step of holding the playlist created in the playlist creation step in a list holding means, a song name input step of inputting a song name, and a playlist having the song name information input in the song name input step A list search stage for searching from a playlist held in the list holding means; and a playback stage for playing back the song data stored in the storage means in accordance with the playlist searched by the list search means. And

  According to the present invention, the playlist is searched based on the input song name information, and the song data is reproduced according to the searched playlist. Therefore, the user can specify information for specifying the playlist, for example, the play list. Even when the title of the album added to the list is not known, the playlist including the song can be searched and reproduced from the song information such as the song name included in the playlist. Thereby, user operability is improved.

  Also, in the music data reproducing method of the present invention, in the above configuration, the music title input step displays a list of music names of a plurality of music data stored in the storage means, and a music title selected from the music title list Is input. According to the present invention, since the music title selected from the music title list displayed in the list is input, the input of the music title by the user is simplified.

  The song data reproduction method of the present invention may further include a dialog display step for displaying a dialog for allowing the user to input a song name included in the playlist held in the list holding means in the above configuration. It is characterized by that. According to the present invention, since the dialog for allowing the user to input the song name included in the playlist held in the list holding means is displayed, the user can select the song information based on this display. Can be entered.

  In the music data playback method of the present invention, in the above configuration, when there are a plurality of playlists searched in the list search stage, a dialog for displaying a dialog for allowing the user to select a playlist to be played back is displayed. It has a display step. According to the present invention, a playlist desired by a user can be reproduced.

  Also, the music data reproduction program of the present invention is a playlist creation for creating a playlist of music data including music title information in order to reproduce a plurality of music data stored in the storage means in units of playlists. Means for holding the playlist created by the playlist creation means in the list holding means, song name input means for inputting a song name, and holding a playlist having song name information input by the song name input means in the list holding means In accordance with the playlist search means for searching from the playlist being played, and means for reproducing the song data stored in the storage means in accordance with the playlist searched by the list search means.

  According to the present invention, the playlist is searched based on the input song name information, and the song data is reproduced according to the searched playlist. Therefore, the user can specify information for specifying the playlist, for example, the play list. Even when the title of the album added to the list is not known, the playlist including the song can be searched and reproduced from the song information such as the song name included in the playlist. Thereby, user operability is improved.

In the song data reproduction program of the present invention, the song name input means displays a list of song names of a plurality of song data stored in the storage means, and inputs a song name selected from the song name list. It is characterized by.

  According to the present invention, since the music title selected from the music title list displayed in the list is input, the input of the music title by the user is simplified.

  The song data reproduction program according to the present invention further has means for outputting, to the dialog display means, a dialog for allowing a user to input a song name included in the playlist held in the list holding means in the above configuration. It is characterized by having. According to the present invention, since the dialog for allowing the user to input the song name included in the playlist held in the list holding means is displayed, the user can select the song information based on this display. Can be entered.

  Further, in the music data reproducing program of the present invention, in the above configuration, when there are a plurality of playlists searched by the list searching unit, a dialog for displaying a dialog for allowing the user to select a playlist to be played back is displayed in the dialog unit. It has the means to output to. According to the present invention, a playlist desired by a user can be reproduced.

  As described above, according to the present invention, even when the information for specifying the playlist is not known, the playback apparatus and the song data playback method capable of playing the playlist including the song from the song information included in the playlist. And a music data reproduction program.

  Hereinafter, the best mode for carrying out the present invention will be described.

  FIG. 1 is a block diagram showing the configuration of a playback apparatus 1 according to this embodiment. The playback device 1 is connected to a song search system server 30. As shown in FIG. 1, the playback device 1 includes an audio controller 11, a memory controller 12, a ROM (Read Only Memory) 13, a RAM (Random Access Memory) 14, an encoder / decoder 15, a CD reader 16, and the like. , A source switching unit 17, an amplifier 18, and a volume controller 19.

  The source switching unit 17 switches the content source for outputting sound from the connected information sources. For example, as shown in the drawing, a radio receiver 25, a CD reader 16 (music CD, CD-ROM, etc., hereinafter referred to as “CD medium”), and a storage device (HDD) 21 are connected to the source switching unit 17.

  When the playback function from the CD medium is selected by the user, the audio controller 11 receives predetermined programs and various information (programs and various information for realizing operations described below) from the ROM 13 or the RAM 14 via the memory controller 12. Load and run this. That is, the source switching unit 17 sets the CD reading unit 16 as an information source, and the music data input thereby is input to the volume controller 19 via the amplifier 18.

  In addition, the audio controller 11 creates a playlist of song data recorded on a music CD (recording medium) based on a predetermined program, and creates a playlist created by the list creation unit on the HDD 21, the RAM 14, etc. A list holding means), a list searching means for searching for a playlist held in the HDD 21, RAM 14 or the like (list holding means) based on music information input from the outside, and a list searching means It functions as a playback means for playing back the music data copied to the HDD 21 (storage means) according to the playlist.

  The audio controller 11 also displays a dialog for causing the user to select a song included in the playlist held in the HDD 21 or RAM 14 (list holding means) based on a predetermined program on the display device 24 (dialog display). Function as a means for outputting to (means).

  Further, the audio controller 11 displays a dialog for allowing the user to input songs included in the playlist held in the HDD 21 or the RAM 14 (list holding means) based on a predetermined program on the display device 24 (dialog display). Function as a means for outputting to (means).

  Also, the audio controller 11 displays a dialog for causing the user to select a playlist to be reproduced when there are a plurality of playlists searched by the list search means based on a predetermined program (display means 24). It functions as a means to output to. The audio controller 11 functions as a song title input unit.

  The audio controller 11 controls the volume controller 19 based on the volume (volume) set by the user. Based on this control, the volume controller 19 generates an analog signal having a corresponding amplitude, and inputs the analog signal to the speaker 22 for reproduction.

  In such a configuration, when a copy of the music data stored on the CD medium is requested, the audio controller 11 controls the source switching unit 17 to specify the output destination of the music data read by the CD reading unit 16 as an encoder. / Switch to decoder 15.

  The encoder / decoder 15 encodes the input music data by a predetermined compression encoding method such as the MP3 method or the ATRAC3 method, and stores it in a recording device (Hard Disk Drive: HDD) 21.

  When reproducing music data recorded on the HDD 21, the audio controller 11 controls the source switching unit 17 to set the information source to the HDD 21 and set the output destination to the encoder / decoder 15. The music data decoded by the encoder / decoder 15 is then output from the speaker 22 as an analog signal via the amplifier 18 and the volume controller 19.

  Next, the music search system server 30 will be described. As shown in FIG. 1, the song search system server 30 includes a server main body 31 and a song information database 32. The music information database 32 stores TOC information of a large number of music CDs and music information (CD title, artist name, music genre, track title, etc.) for each music CD. The music information database 32 corresponds to the CDDB.

  Next, the music information stored in the music information database will be described. FIG. 2 is a diagram for explaining music information stored in the music information database. As shown in FIG. 2, the music information of the music CD includes disc title: “Escape-COMPLETE BEST-Disc1”, artist name: “UDY AND ARY”, time information: “73:28”, ISRCNO. ESCB-2230, song number (NO.): “1-15”, song title corresponding to each song number, and time information (Time) for each song are included.

  Next, a method for managing a playlist created by the audio controller 14 will be described. FIG. 3 is a diagram showing a playlist management mechanism, which is realized by a playlist management table 211 for managing a plurality of playlists and a playlist 212 managed by the playlist management table 211.

  The playlist 212 managed by the playlist management table 211 is stored in the HDD 21, and the playlist 212 selected as a use target is loaded from the HDD 21 into the main memory (ROM 13 / RAM 14) and is referred to during playback control. . The playlist 212 managed by the playlist management table 211 can be arbitrarily called and edited.

  Next, a method for creating a playlist will be described. First, the audio controller 11 determines whether or not a CD has been inserted into the CD reader 16, and if a music CD is loaded in the CD drive, obtains the TOC information of the music CD via the CD reader 16. To do.

  Next, the audio controller 11 accesses the song search system server 30 via the communication unit 26 and transmits the acquired TOC information. When the song search system server 30 receives the TOC information from the playback device 1, the song search system server 30 searches the song information database 32 using the TOC information as a search key. The music search system server 30 transmits the music information that matches the search key to the playback device 1. As a result, the audio controller 11 acquires music information from the music search system server 30 via the communication unit 26.

  The audio controller 11 creates a playlist by associating the music information obtained from the music search system server 30, that is, information such as the CD title, artist name, music genre, and track title with the TOC information of the music CD, and displays the playlist. The information is displayed on the device 24 and temporarily stored in the RAM 14 via the memory controller 12.

  The audio controller 11 stores the playlist stored in the RAM 14 in the playlist management table 211 of the HDD 21 after the music CD has been copied to the HDD 21. The playlist stored in the playlist management table 211 is loaded into the main memory at the time of reproduction and is referred to at the time of reproduction control.

  Next, the operation of the playback apparatus according to the present embodiment will be described. FIG. 4 is an operation flowchart of the reproducing apparatus according to the present embodiment. The playback device 1 selects all songs managed by the playlist management table 211 in a list, displays a list of all songs, a song name search mode in which a user can search by song name, and a play managed by the playlist management table 211. It is assumed that there is a playlist selection mode for displaying a list of playlist names in the list.

  In step S101, the audio controller 11 determines whether or not it is currently in the all-tune list mode. If the audio controller 11 determines in step S101 that it is the all-tune list mode, in step 102, all the songs included in the playlist managed in the playlist management table 211 are displayed on the display device 24. List display.

  FIG. 5 shows an example in which all the songs included in the playlist managed in the playlist management table 211 are displayed as a list on the display device 24. In the entire song list of FIG. 5, the songs aaa, songs abc, songs bbb, songs ccc, songs ddd, songs dfg, songs eeee, songs fff included in the playlist managed by the playlist management table 211 are shown. Yes.

  The audio controller 11 accesses the playlist management table 211 to obtain necessary information, thereby allowing the user to select a song included in the playlist held in the playlist management table 211. Is displayed (FIG. 5).

  In step S103, the audio controller 11 determines whether or not one song has been selected from the all song list shown in FIG. In step S104, when a song is selected by the input device 23, the audio controller 11 searches the playlist in the playlist management table 211 for a playlist including the song, and then proceeds to step S105. move on.

  If the audio controller 11 determines in step S101 that the music list mode is not set, the process proceeds to step S111. In step S111, the audio controller 11 determines whether or not the music title search mode is set. If the music controller 11 is in the music title search mode, the audio controller 11 accepts the music title input from the input device 23 in step S112. FIG. 6 shows a display example of a dialog for allowing the user to input a song included in the playlist. The user can input an arbitrary song name from the screen shown in FIG.

  In step S113, the audio controller 11 accesses the playlist management table 211 of the HDD 21, and searches for the corresponding song and a playlist including the corresponding song.

  In step S114, if there is a corresponding song in the playlist managed by the playlist management table 211, the audio controller 11 proceeds to step S105. In step S114, when there is no corresponding song in the playlist managed in the playlist management table 211, the audio controller 11 displays on the display device 24 that there is no corresponding song in step S115.

  If the audio controller 11 determines in step S111 that the song name search mode is not selected, the process proceeds to step S121. In step S121, the audio controller 11 determines whether or not the playlist selection mode is set.

  In step S121, if the audio controller 11 determines that the playlist selection mode is set, in step S122, the audio controller 11 accesses the playlist management table 211 of the HDD 21, acquires all playlist names, and plays the playlist. The names are displayed as a list on the display device 24.

  In step S123, the audio controller 11 determines whether or not a playlist is selected by the user. If the playlist is selected, the process proceeds to step S108. If the audio controller 11 determines in step S121 that it is not in the playlist selection mode, it ends the process.

  Returning to step S105, the audio controller 11 determines whether or not the corresponding playlist exists, and when determining that there is no corresponding playlist, the audio controller 11 proceeds to step S109. In step S105, if the audio controller 11 determines that there are a plurality of corresponding playlists, the audio controller 11 displays a dialog for allowing the user to select a playlist to be played back.

  FIG. 7 shows a display example of a dialog for allowing the user to select a playlist to be played when there are a plurality of searched playlists. In FIG. 7, when the user selects the song “dfg”, the user may select an arbitrary playlist from playlists (album AAA, album BBB, album CCC) including this song “dfg”. It can be done.

  Proceeding to step S106, a selection screen on which the user can select playback of one song or playback of the entire playlist is displayed on the display device 24. FIG. 8 is a display example of a selection screen that allows the user to select one song reproduction or whole playlist reproduction. The user can arbitrarily select from the input device 23 whether to play only one song or the entire playlist from the dialog shown in FIG.

  In step S107, the audio controller 11 determines whether one-track reproduction or playlist reproduction has been selected. If one-track reproduction is selected by the input device 23, the process proceeds to step S109. In step S109, the audio controller 11 plays one song selected by the user, and ends the process.

  In step S107, if the playlist reproduction is selected by the input device 23, the audio controller 11 proceeds to step S108. In step S108, the audio controller 11 reproduces the song data recorded on the HDD 21 in accordance with the playlist selected by the input device 23, and ends the process.

  According to the present embodiment, the playlist is searched based on the song information input from the outside, and the song data is reproduced according to the searched playlist, so that the user can specify the playlist. For example, even when the title of the album added to the playlist is not known, if the title of a song included in the playlist is known, the playlist including the song can be searched and reproduced. Thereby, user operability is improved.

  The embodiment of the present invention has been described above. The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the gist of the present invention.

It is a block diagram which shows the structure of the reproducing | regenerating apparatus by a present Example. It is a figure for demonstrating the music information memorize | stored in the music information database. It is a figure which shows the management mechanism of a play list. It is an operation | movement flowchart of the reproducing | regenerating apparatus based on a present Example. It is the figure which showed the example which displayed the list of all the music contained in the play list managed by the play list management table on the display device. It is the figure which showed the example of a display of the dialog for making a user input the music contained in a play list. It is the figure which showed the example of a display of the dialog for making a user select the play list to reproduce | regenerate, when there exist multiple specified play lists. It is the figure which showed the example of a display of the selection screen which can select reproduction | regeneration of 1 music or the play list whole by the user.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Playback apparatus 11 Audio controller 16 CD reading part 21 Storage device (HDD)
24 display device 30 music search system server

Claims (12)

In a playback device capable of playing back a plurality of song data stored in the storage means in units of playlists,
Playlist creation means for creating a playlist of song data including song name information;
List holding means for holding the playlist created by the playlist creating means;
A song title input means for inputting a song title;
List search means for searching a playlist having song name information input by the song name input means from a playlist held in the list holding means;
A playback device comprising: playback means for playing back the song data stored in the storage means in accordance with the playlist searched by the list search means. 2. The reproducing apparatus according to claim 1, wherein the song name input means displays a list of song names of a plurality of song data stored in the storage means, and inputs a song name selected from the song name list. 2. The reproduction according to claim 1, wherein the reproduction apparatus further comprises dialog display means for displaying a dialog for allowing a user to input a song name included in the playlist held in the list holding means. apparatus. The playback device further includes dialog display means for displaying a dialog for allowing a user to select a playlist to be played back when there are a plurality of playlists searched by the list search means. The playback device according to any one of claims 1 to 3. In a method for reproducing song data in which a plurality of song data stored in the storage means can be reproduced in units of playlists,
A playlist creation stage for creating a playlist of song data including song name information,
Holding the playlist created in the playlist creation stage in a list holding means;
Enter the song title, enter the song title,
A list search stage for searching a playlist having the song name information input in the song name input stage from the playlist held in the list holding means;
A music data reproduction method comprising: a reproduction step of reproducing music data stored in the storage means according to a playlist searched by the list search means. 6. The song data input step according to claim 5, wherein the song name input step displays a list of song names of a plurality of song data stored in the storage means, and inputs a song name selected from the song name list. Playback method. 6. The method of claim 5, further comprising a dialog display step of displaying a dialog for allowing a user to input a song name included in a playlist held in the list holding means. To play back song data. The music data playback method further includes a dialog display step of displaying a dialog for allowing the user to select a playlist to be played back when there are a plurality of playlists searched in the list search step. The method for reproducing music data according to any one of claims 5 to 7. In order to reproduce a plurality of song data stored in the storage means in units of playlists,
Playlist creation means for creating a playlist of song data including song name information;
Means for holding the playlist created by the playlist creating means in a list holding means;
Song name input means to input the song name,
List search means for searching a playlist having song name information input by the song name input means from a playlist held in the list holding means;
A music data reproduction program for functioning as means for reproducing music data stored in the storage means in accordance with the playlist searched by the list search means. 10. The song data input unit according to claim 9, wherein the song name input unit displays a list of song names of a plurality of song data stored in the storage unit, and inputs a song name selected from the song name list. Playback program. The music data reproduction program further comprises means for outputting to the dialog display means a dialog for allowing the user to input a song name included in the playlist held in the list holding means. 9. A program for reproducing music data according to 9. The song data reproduction program further includes means for outputting, to the dialog display means, a dialog for allowing the user to select a playlist to be reproduced when there are a plurality of playlists searched by the list search means. The music data reproduction program according to any one of claims 9 to 11.

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