JP4546431B2 - Song data providing device, song data providing method, song data extraction program - Google Patents

Description

  The present invention relates to a song data providing apparatus, a song data providing method, and a song data cutout program for providing song data used for an incoming melody or the like of a mobile phone.

  In recent years, a service for downloading music data that can be reproduced and output music is widely used in mobile phones through communication lines including the Internet. In the mobile phone, the downloaded music data can be used as, for example, an incoming melody (ringtone).

  On the side of providing a download service, it is required to prepare a large number of music data so that many users can use the service. In particular, when music data is used as an incoming melody, even if there are many people in the same place, the same music (title) is used so that the incoming melody emitted from the mobile phone used by each person is not the same. ), It is considered to download edited music data (see, for example, Patent Document 1).

Patent Document 1 discloses a data supply server that can download ringtone data with originality that can be differentiated from other mobile phones even when people with the same age and the same hobbies gather. In Patent Document 1, a synthesized incoming melody data having originality is synthesized by synthesizing incoming melody data selected from a plurality of incoming melody data and character voice data selected from a plurality of character voice data. Can be generated and downloaded. Thus, it is possible to download ringtone data having originality that can be differentiated from other mobile phones without increasing the number of ringtone data.

  Thus, conventionally, ringtone data with originality is generated by combining the incoming melody data selected by the user and the character voice data.

  However, in the download service by the conventional data supply server, although the ring melody data prepared in advance can be edited, only the entire ring melody (full chorus) can be downloaded. That is, it is not possible to download only the music data at a location corresponding to a specific location in the music.

  Conventionally, in order to be able to download only a part of a music piece (for example, a chorus phrase), it has been necessary to prepare a piece of music data in the music piece as one music piece. In this case, it is possible to download only the music data of a portion prepared in advance. In addition, in order to be able to download a part of music data at a plurality of locations in one music, each music data at the plurality of locations must be prepared and managed as music data to be individually downloaded. The management burden will increase.

  The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a song data providing apparatus capable of providing a part of song data in a song without increasing the number of song data prepared in advance. To provide a music data providing method and a music data cutting program.

The present invention relates to music data storage means for storing music data composed of data for a plurality of tracks having a structure in which playback control commands that are read and executed in time series during playback are arranged, and Cutout location information receiving means for receiving cutout location information indicating a cutout location, song data acquisition means for acquiring partial song data in a range corresponding to the cutout location information received by the cutout location receiving means, and song data Playback control for searching for each of the plurality of tracks for the playback control command arranged immediately before the partial song data for the range from the beginning of the song data to the song data acquired by the song data income means Command search means and the playback control command searched by the playback control command search means are used to obtain the song data. The beginning of the partial music data obtained by the step, and a reproduction control command insertion means for inserting for each of the plurality of tracks, said reproduction control command insertion means by the reproduction control command is inserted the partial song data has been And music data transmission means for transmitting.

  According to the present invention, it is possible to cut out and transmit song data in a corresponding range from song data based on cutout location information indicating the cutout location for song data. There is no need to prepare song data in advance. For this reason, it becomes possible to provide a part of music data in the music without increasing the number of music data prepared in advance.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a system in the present embodiment. In the system according to the present embodiment, the music data server 10 is connected to a mobile phone 14 that is a mobile communication device via a network 12 including the Internet and a public line network. The song data server 10 provides a service for downloading song data through the network 12. The mobile phone 14 is equipped with a function of outputting sound based on music data downloaded from the music data server 10. For example, the downloaded music data can be used as an incoming melody.

  In the present embodiment, a case where music data is downloaded from the music data server 10 by the mobile phone 14 will be described. However, other mobile communication devices such as personal computers or PDAs (personal digital assistants) equipped with communication functions are described. It is also possible to download music data by a car navigation system or the like. The music data can be used not only as an incoming melody, but also for general music playback and other purposes.

  FIG. 2 is a block diagram showing a functional configuration of the song data server 10. The song data server 10 has a general computer function. The song data server 10 implements various functions shown in FIG. 2 by executing a program stored in a memory by a processor.

The song data server 10 is provided with functions of a storage unit 20, a song data cutout unit 22, and a download control unit 24.
The storage unit 20 is for storing various data (information) related to the music data download service, and is provided with a song data storage unit 20a, a cutout location information storage unit 20b, and a song list storage unit 20c. .

  The song data storage unit 20a stores song data to be downloaded, and stores song data corresponding to each of a plurality of titles. The music data stored in the music data storage unit 20a is read and executed in time series at the time of reproduction, for example, in the format of MIDI (musical instruction digital interface) data (or SMF (standard midi file) data). It is assumed that the playback control command has a data structure arranged. In the music data in this embodiment, cut-out position data (cue point commands (cue start and cue end) described later) indicating a cut-out position when cutting out music data partially is inserted. For example, if a song is divided into a plurality of phrases such as “prelude”, “melody 1”, “melody 2”, “rust”, “interlude”, etc. In addition, cutout position data is inserted.

  The clippable part information storage unit 20b stores cutout part information indicating a cutout part for music data for each piece of music data stored in the music data storage unit 20a. For example, when a music piece is divided into a plurality of phrases such as “prelude”, “melody 1”, “melody 2”, “rust”, “interlude”, etc., and can be downloaded for each phrase, “prelude” “melody 1” “Melody 2”, “rust”, “interlude”,... The cut-out location information is transmitted to the mobile phone 14 and used when the user of the mobile phone 14 selects a location (phrase) to be downloaded.

  The song list storage unit 20c stores song list data for a plurality of song data stored in the song data storage unit 20a. The music list storage unit 20c stores, for example, data on an “artist name list” in which songs are arranged in the order of “artist names” and a “song name list” in which the songs are arranged in the order of “song names (titles)”. It shall be prepared. The music list data is transmitted to the mobile phone 14 and used when the user of the mobile phone 14 selects the music to be downloaded.

  Next, the song data cutout unit 22 is a function realized by executing a cutout program by a processor, and a cutout song data acquisition unit 22a, a playback control command search unit 22b, a buffering unit 22c, and a playback control command insertion. The function of the part 22d is provided.

  The cut-out location music data acquisition unit 22a downloads music data in a range corresponding to the cut-out location information received through the cut-out location information receiving unit 26c (described later) as a download target stored in the music data storage unit 20a. Get from. The cutout location information indicates, for example, each phrase of “prelude”, “melody 1”, “melody 2”, “rust”, “interlude”,. The cut-out location music data acquisition unit 22a cuts out and acquires music data corresponding only to the phrase indicated by the cut-out location information based on the cut-out position data (cue point command) inserted into the music data.

  The playback control command search unit 22b searches for playback control commands sequentially from the beginning of the music data to be downloaded, and stores it in the buffering unit 22c. The reproduction control command search unit 22b searches for a reproduction control command for a phrase preceding the phrase corresponding to the cut-out location information received by the cut-out location information receiving unit 26c. Therefore, the playback control command searched last is a playback control command arranged immediately before the phrase corresponding to the cut-out location information. This playback control command is a command for controlling music data from the beginning of the phrase corresponding to the cut-out location information until the next playback control command exists.

  In music data having a structure (MIDI (SMF) data or the like) in which playback control commands that are read and executed in time series at the time of playback are arranged, the music data in this section is not necessarily provided for each specific section (phrase). All playback control commands for controlling are not arranged. For example, there is a case where a playback control command for playing back and outputting a phrase currently being played back is arranged in the music data of the immediately preceding phrase. The reproduction control command search unit 22b extracts a reproduction control command related to the reproduction output of the phrase corresponding to such cut-out location information.

  The buffering unit 22c stores the reproduction control command retrieved from the music data by the reproduction control command retrieval unit 22b.

  The reproduction control command insertion unit 22d retrieves the latest reproduction control command (reproduction control command immediately before the phrase corresponding to the extraction part information) searched by the reproduction control command search part 22b and stored in the buffering part 22c. The music data to be downloaded is inserted into the head of the music data acquired by the music data acquisition unit 22a and generated.

  Next, the download control unit 24 is a function realized by executing a download control program by a processor, and is provided with a reception control unit 26 and a transmission control unit 28.

  The reception control unit 26 includes a download request receiving unit 26a, a selected music information receiving unit 26b, and a cut-out location information receiving unit 26c.

  The download request receiving unit 26 a receives a music data download request from the mobile phone 14 through the network 12.

  The selected music information receiving unit 26b receives the selected music information indicating the music to be downloaded, transmitted from the mobile phone 14. The selected music information receiving unit 26b notifies the music data cutout unit 22 of the received selected music information.

  The cut-out location information receiving unit 26c receives cut-out location information indicating the cut-out location for the music data transmitted from the mobile phone 14. The cutout location information receiving unit 26c notifies the music piece cutout unit 22 of the received cutout location information.

  The transmission control unit 28 includes a music list transmission unit 28a, a cutout location information transmission unit 28b, and a music data transmission unit 28c.

  The music list transmitting unit 28a transmits the music list data stored in the music list storage unit 20c to the mobile phone 14 when the download request is received by the download request receiving unit 26a.

  The cut-out location information transmission unit 28b reads out the cut-out location information from the cut-out location information storage unit 20b and transmits it to the mobile phone 14 in accordance with the music data indicated by the selected music information received by the selected music information reception unit 26b.

  The music data transmitting unit 28c is generated by the reproduction control command insertion unit 22d of the music data cutout unit 22, and the music data of the phrase corresponding to the cutout location information, that is, the music data cut out from the entire music data to be downloaded. Is transmitted to the mobile phone 14.

Next, the operation of the system in this embodiment will be described.
FIG. 3 is a flowchart for explaining the flow of processing between the music data server 10 and the mobile phone 14 connected via the network 12. Hereinafter, a description will be given with reference to the flowchart shown in FIG.

  The mobile phone 14 accesses a site that provides a music data download service published by the music data server 10 through the network 12. The song data server 10 provides a menu for using the download service to the mobile phone 14. Here, when the use of the download service is selected from the menu by the user operation, the mobile phone 14 transmits a download request to the music data server 10.

  When receiving the download request from the mobile phone 14, the download request receiving unit 26a of the music data server 10 notifies the music list transmitting unit 28a. The music list transmission unit 28a provides the mobile phone 14 with a menu for selecting a music list format in response to a download request. The mobile phone 14 displays the menu provided from the music list transmission unit 28a on the display.

  FIG. 4A shows an example of a menu for selecting a music list format displayed on the display of the mobile phone 14. In the example shown in FIG. 4A, items “search by artist name” and “search by song name” are provided.

  Here, for example, when “search by artist name” is selected, the music list transmission unit 28a transmits the “artist name list” (music list) stored in the music list storage unit 20c to the mobile phone 14 (FIG. 3 (1)). Here, the transmitted music list includes, for example, music that can be cut out and downloaded in units of phrases.

  The mobile phone 14 displays the “artist name list” received from the music list transmission unit 28a on the display.

  FIG. 4B shows an example of an “artist name list” displayed on the display of the mobile phone 14. In the example shown in FIG. 4B, a list of the music pieces of the artist whose artist name starts with the “A” line is displayed.

  Here, it is assumed that the song “Story” by the artist “AKI” is selected from the song list displayed on the display by the user's operation on the mobile phone 14 (FIG. 3B). The mobile phone 14 transmits the selected music information indicating the selected music to the music data server 10 (FIG. 3 (3)).

  When the selected music information receiving unit 26b of the music data server 10 receives the selected music information from the mobile phone 14, the selected music information receiving unit 26b notifies the cut location information transmitting unit 28b. The cutout location information transmitting unit 28b acquires the cutout location information corresponding to the selected music information from the cutout location information storage unit 20b (FIG. 3 (4)) and transmits it to the mobile phone 14 (FIG. 3 (5)). ). In addition, the cut-out location information transmission unit 28b calculates the playback time and data size of each phrase based on a command related to the playback time included in the music data of the music selected by the user. Data indicating the data size is also transmitted to the mobile phone 14.

  The mobile phone 14 displays a selection screen for allowing the user to select a phrase to be downloaded according to the cut location information received from the song data server 10 and the data indicating the playback time and the data size.

  FIGS. 4C and 4D show examples of screens for selecting a phrase to be downloaded. As shown in FIG. 4C, in addition to song information (artist name, title), a column for selecting download of full chorus (whole song data) is provided. In this embodiment, a column corresponding to each phrase for selecting download in units of phrases is further provided. In each phrase column, the data size and playback time of the music data are displayed in addition to the phrase name.

  For example, in FIG. 4C, a column corresponding to the phrase “Prelude” is displayed, and a playback time “15 seconds” and a data size “1.3 KB” are displayed. The playback time and data size can be used as a reference when selecting the download target. When the mobile phone 14 is instructed to scroll the screen by a user operation, for example, as shown in FIG. 4D, a column corresponding to another phrase can be displayed. In the column corresponding to each phrase, either “trial listening” or “download” can be selected. When “trial listening” is selected, the music data transmitted from the music data server 10 is not stored in the mobile phone 14 but only played back. When “download” is selected, the music data server 10 The music data transmitted from is stored in the memory of the mobile phone 14 and reproduced.

  When “download” (or “trial listening”) is selected in the column corresponding to any phrase by the user operation (FIG. 3 (6)), the mobile phone 14 is cut out corresponding to the selected phrase. Information is transmitted to the music data server 10 (FIG. 3 (7)). For example, when “Download” is selected in the “Prelude 1” field, cutout location information indicating “Prelude 1” is transmitted to the song data server 10.

  When the song data server 10 receives the cutout location information by the cutout location information receiving unit 26c, the song data server 10 calls the cutout program and starts cutout data generation processing for cutting out music data in a range corresponding to the cutout location information (FIG. 3). (8)).

  FIG. 5 is a flowchart for explaining cut-out data generation processing executed in the music data cut-out unit 22. FIG. 6 is a diagram for explaining cut-out data generation processing.

  Here, the structure of music data to be downloaded will be described. As shown in FIG. 6A, the music selected by the user is included in a plurality of phrases “prelude”, “melody 1”, “melody 2”, “rust”, “interlude”, “melody 3”, and “follower”. It shall be classified. In the music data provided by the music data server 10 in this embodiment, cue point commands, that is, a cue start command and a cue end command are inserted at the beginning and end of each phrase. The music data includes, for example, data for 16 tracks, and playback control commands that are read and executed in time series at the time of playback are arranged for each track.

  First, the song data cutout unit 22 reads the song data corresponding to the song information (title name) selected as the download target from the song data storage unit 20a.

The reproduction control command search unit 22b reads the data (track data) of the first track of the music data (step A1), and searches for various reproduction control commands from the beginning (step A2). The reproduction control command includes various commands related to reproduction control of subsequent data such as a timbre switching command and a volume switching command.

When the playback control command is searched from the music data (step A3, Yes), the playback control command search unit 22b stores the searched playback control command in the buffering unit 22c (step A4).

  The playback control command search unit 22b continues to search for playback control commands (steps A2 to A4) until a queue start command for the phrase selected as the download target is searched (step A5).

In FIG. 6, it is assumed that the phrase “rust” is selected as the download target. In this case, for the music data in the range of “Prelude”, “Melody 1”, and “Melody 2” shown in FIG.

  When the phrase “rust” (cue start command) selected here is reached, the playback control command search unit 22b determines whether or not the search has been completed for all tracks. If the search for all the tracks has not been completed (No at Step A6), the playback control command search unit 22b performs music data (“prelude”) up to the phrase (“rust”) to be downloaded in the same manner as described above. The reproduction control command is searched from the beginning within the range of “Melody 1” and “Melody 2”).

  When the search for the playback control command is completed for all tracks (step A6, Yes), the playback control command insertion unit 22d uses the cue start command and the cue end command corresponding to the selected location for each track. At the beginning of the music data of the sandwiched phrase (“rust”), the latest playback control command (searched last) buffered in the buffering unit 22c is set to the command execution weight “0”. Set and insert (step A7).

  By setting the command execution wait to “0” and inserting the playback control command, the music data after the playback control command is controlled by the inserted playback control command when the music data is played back. .

  Thus, when the music data to be downloaded is extracted from all the music data of the title to be downloaded by the cut generation process, the music data transmission unit 28c transmits the cut music data to the mobile phone 14 (FIG. 3). (9)).

  When the mobile phone 14 downloads the music data from the music data server 10, the mobile phone 14 stores the music data in a predetermined data folder in the memory and displays a message for notifying the user of the download completion on the display.

  FIG. 4E shows an example of a screen displayed when music data is downloaded to the mobile phone 14. In the example shown in FIG. 4E, download completion, the title and phrase name of the downloaded music, and a message for notifying the user that it has been stored in the data folder are displayed.

  Here, when the music downloaded by the user is played back, the mobile phone 14 plays back and outputs the music based on the music data stored in the data folder. FIG. 4F shows an example of a display screen when music data is being reproduced and output. Here, for example, when an instruction to select a “Register” button provided at the bottom of the screen is input, the mobile phone 14 can set the downloaded music data as an incoming melody.

  In this way, in the music data server 10 according to the present embodiment, music data for each download unit is prepared in advance, such as full chorus data or chorus data, as music data used as the incoming melody in the mobile phone 14. There is no need to keep it. The song data server 10 can provide song data for each phrase desired by the user simply by preparing and managing one piece of song data for one title. The user of the mobile phone 14 can arbitrarily select a favorite phrase from the whole music and use it as a ringing melody. For example, even if there is only one favorite music, a ringing melody with various phrase variations can be used. I can enjoy it. Even if another user selects a song with the same title, it is easy to select a different phrase and download it to a different ringing melody.

  The song data server 10 does not prepare in advance all the pieces of music data previously cut out in units of phrases, but in units of phrases to be downloaded by a cut-out data generation process (a song data extraction program) each time a download request is made. Therefore, the music data management in the music data server 10 becomes easy.

  In addition, a cue point command is inserted into music data handled by the music data server 10 and music data is cut out using this cue point command. It can be specified accurately. For this reason, it is possible to easily generate and download music data of a location (range) desired by the user.

  In the above description, the user selects one phrase from the music and downloads only the music data corresponding to the selected location. However, a plurality of phrases can be selected at once by selecting a plurality of phrases. You may make it download the music data of the location applicable to. In this case, the song data at locations corresponding to a plurality of phrases may be downloaded as individual song data, or may be downloaded after being synthesized as one song data. In addition, the format in which the music data is downloaded may be arbitrarily specified by the user through a menu or the like.

  In the above description, the cue point command (cue start, cue end) indicating the division point of the phrase is inserted in advance in the song data, and the song data is cut out in the range divided by this command. However, the range to be extracted may be specified by another method. For example, it is possible to cut out music data in a corresponding range in accordance with the time designation for the music. In this case, the download control unit 24 (download control program) receives the designation of the time in the music to be downloaded from the mobile phone 14. The song data cutout unit 22 detects the range of the song data corresponding to the specified time, and acquires the song data in the corresponding range. For example, the reproduction range of the music is calculated based on a command related to the reproduction time included in the music data, and the corresponding range is detected. Then, in the same manner as the cut-out data generation process described above, by searching for the latest playback control command on the time axis from the beginning of the song to the relevant range, and inserting it at the beginning of the song data in the relevant range, Generate music data to download.

  In the above description, the mobile phone 14 is described as accessing the music data server 10 via the network 12 such as the Internet and downloading the music data. Data may be downloaded. For example, the music data server 10 described above may be configured as a music data providing dedicated device, connected to the mobile phone 14 (or other information device) by wired or short-range wireless communication, and the processing described above may be executed.

  Further, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  The method described in the embodiment is a program (software means) that can be executed by a computer (computer), for example, a magnetic disk (flexible disk, hard disk, etc.), an optical disk (CD-ROM, DVD, MO, etc.). It can also be stored in a recording medium such as a semiconductor memory (ROM, RAM, flash memory, etc.), or transmitted and distributed by a communication medium. The program stored on the medium side includes a setting program that configures software means (including not only the execution program but also a table and data structure) in the computer. A computer that implements this apparatus reads a program recorded on a recording medium, constructs software means by a setting program as the case may be, and executes the above-described processing by controlling the operation by this software means. The recording medium referred to in this specification is not limited to distribution, but includes a storage medium such as a magnetic disk or a semiconductor memory provided in a computer or a device connected via a network.

The block diagram which shows the structure of the system in embodiment of this invention. The block diagram which shows the function structure of the music data server. 7 is a flowchart for explaining the flow of processing between the song data server 10 and a mobile phone 14 connected via a network 12. FIG. 6 is a diagram showing an example of a display screen on the mobile phone 14. The flowchart for demonstrating the cut-out data production | generation process performed in the music data cut-out part 22. FIG. The figure for demonstrating cutout data production | generation processing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Song data server, 12 ... Network, 14 ... Mobile phone, 20 ... Memory | storage part, 20a ... Song data memory | storage part, 20b ... Cut-out location information storage part, 20c ... Music list memory | storage part, 22 ... Song data cut-out part, 22a ... cut-out location song data acquisition unit, 22b ... playback control command search unit, 22c ... buffering unit, 22d ... playback control command insertion unit, 24 ... download control unit, 26 ... reception control unit, 26a ... download request reception unit, 26b ... selected music information receiving unit, 26c ... cutout location information receiving unit, 28 ... transmission control unit, 28a ... music list sending unit, 28b ... cutout location information transmitting unit, 28c ... music data sending unit.

Claims (6)

Music data storage means for storing music data consisting of data for a plurality of tracks having a structure in which playback control commands read out and executed in time series during playback are arranged;
Cutout location information receiving means for receiving cutout location information indicating a cutout location for song data;
Song data acquisition means for acquiring partial song data in a range corresponding to the cutout location information received by the cutout location receiving means;
For each of the plurality of tracks, the playback control command arranged immediately before the partial song data is searched for the range from the beginning of the song data to the song data acquired by the song data income means. Playback control command search means;
Reproduction control command insertion means for inserting the reproduction control command searched by the reproduction control command search means for each of the plurality of tracks at the beginning of the partial song data acquired by the song data acquisition means;
A music data providing apparatus comprising: music data transmitting means for transmitting the partial music data in which the reproduction control command is inserted by the reproduction control command inserting means. The music data stored in the music data storage means is inserted with information indicating the cutout position,
2. The music data providing apparatus according to claim 1, wherein the music data cutout means cuts out music data based on information indicating the cutout position. The cutout location information receiving means receives cutout location information about a plurality of locations,
2. The music data providing apparatus according to claim 1, wherein the music data cut-out means cuts out music data corresponding to each piece of cut-out location information for the plurality of locations. The cut-out location information receiving means receives a time specification for a song as the cut-out location information,
2. The music data providing apparatus according to claim 1, wherein the music data cutout means cuts out music data corresponding to the time received by the cutout location information receiving means. Receiving cutout location information indicating a cutout location for music data composed of data for a plurality of tracks having a structure in which playback control commands that are read and executed in time series during playback are arranged;
In accordance with the received cutout location information, cut out partial song data in the corresponding range from the song data,
For the range from the beginning of the song data to the partial song data, the playback control command arranged immediately before the partial song data is searched for each of the plurality of tracks ,
The playback control command searched by the playback control command search means is inserted for each of the plurality of tracks at the beginning of the partial song data,
A method of providing music data, comprising transmitting the partial music data in which the reproduction control command is inserted. Computer
Music data storage means for storing music data consisting of data for a plurality of tracks having a structure in which playback control commands read out and executed in time series during playback are arranged;
Cutout location information receiving means for receiving cutout location information indicating a cutout location for song data;
Song data acquisition means for acquiring partial song data in a range corresponding to the cutout location information received by the cutout location receiving means;
For each of the plurality of tracks, the playback control command arranged immediately before the partial song data is searched for the range from the beginning of the song data to the song data acquired by the song data income means. Playback control command search means;
Reproduction control command insertion means for inserting the reproduction control command searched by the reproduction control command search means for each of the plurality of tracks at the beginning of the partial song data acquired by the song data acquisition means;
A song data cutout program for functioning as song data transmission means for transmitting the partial song data in which the reproduction control command is inserted by the reproduction control command insertion means.

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