JP2010211874A - Data output device, data output method, and data output program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily reproduce music registered in different playlists without reducing satisfaction degree of each user as a whole. <P>SOLUTION: A data output device (reproducing device 1) is provided with: a numerical value extracting part (CPU6) for extracting a numerical value determined in a plurality of output order data file indicating the output order of content data and/or a numerical value determined in content data included in the plurality of output order data file; a data extracting part (CPU6) for extracting content data from among content data included in the plurality of output order data files respectively on the basis of the numerical value extracted from the numerical value extracting part (CPU6); and a data output part (loud speaker 11) for outputting content data extracted by the data extracting part (CPU6). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a data output device, a data output method, and a data output program.

  Patent Document 1 discloses an information processing apparatus that can remarkably improve usability when simultaneously used by a plurality of users. In the information processing apparatus disclosed in Patent Document 1, processing is executed according to setting information that can provide a use environment shared by a plurality of users, separately from setting information for each user used when logging in individually. A shared usage environment can be provided.

JP 2005-157894 A (summary etc.)

  For example, when the technique described in Patent Document 1 is applied to a playback device such as an audio player that is installed in a vehicle and used in common, there are the following problems. In a playlist in which favorite songs are collected and recorded, it is common that different songs are recorded for each user. However, in order to apply the technology described in Patent Document 1 and create shared playlist setting information, it is necessary to further create shared playlist setting information in addition to the playlist created by the user. It takes a lot of work. Also, as the number of sharers increases, the total number of songs registered in the playlist increases, and if the number of songs other than favorite songs increases, there is a concern that the satisfaction level of each sharer will decrease overall.

  In addition, in a playback device such as an audio player used for sharing, in addition to a method for creating a shared playlist, a method for playing music across each playlist may be considered. However, the method of playing music across a plurality of playlists also has the following problems. For example, as shown in FIG. 11, when music A1 to A5 registered in the playlist (A) is being reproduced, the music B1 to B5 registered in the playlist (B) is reproduced. There is no. Therefore, as shown in FIG. 12, in order to reproduce the music B1 registered in another playlist (B) while reproducing the music A1 to A5 registered in the playlist (A), It is necessary to end the playlist (A) once and reproduce the playlist (A ′) in which the music piece B1 registered in another playlist (B) is newly added to the playlist (A).

  Alternatively, as shown in FIG. 13, it is necessary to stop the reproduction of the playlist (A) being reproduced, select the playlist (B), and reproduce the music piece B1. With this method, for example, if you have a song that your father and sister want to listen to while driving with your family, you can switch the playlist each time or add the song you want to listen to to any playlist. Must be done and is very inconvenient. In other words, the conventional method of playing music across multiple playlists is based on the premise that the songs are played independently according to the songs registered in each playlist. It cannot be played back easily.

  Therefore, in view of the above-described problems, the present invention easily reproduces music registered in different playlists without reducing the overall satisfaction of each user when there are a plurality of playlists. An object of the present invention is to provide a data output device, a data output method, and a data output program.

  A data output device according to one aspect of the present invention uses a numerical value defined in a plurality of output order data files indicating an output order of content data and / or a numerical value defined in content data included in the plurality of output order data files. A numeric extraction unit to extract, a data extraction unit to extract content data from content data included in each of a plurality of output order data files based on the numeric values extracted by the numeric extraction unit, and content data extracted by the data extraction unit And a data output unit for outputting.

  In addition to the configuration of the data output device described above, the data output device according to one aspect of the present invention generates an output sequence data file that generates an output sequence data file indicating the output sequence of a plurality of content data extracted by the data extraction unit It is preferable to provide a part.

  In addition to the configuration of the data output device described above, the data output device according to one aspect of the present invention includes a numerical value determined in the output order data file and / or a numerical value determined for each content data in the data output unit. The value is preferably used to determine the order in which data is output.

  In addition to the configuration of the data output device described above, the data output device according to one aspect of the present invention is content data is audio data, and the output order data file is a playlist file indicating the playback order of audio data. The numerical value extracted by the numerical value extraction unit is determined in the playlist and / or audio data included in the playlist, and the data extraction unit is determined in the playlist and / or audio data included in the playlist. It is preferable that audio data is extracted based on the numerical values, and the data output unit reproduces the audio data extracted by the data extraction unit.

  In addition to the configuration of the data output device described above, the data output device according to one aspect of the present invention includes an output order data file generation unit that generates a playlist file indicating the reproduction order of a plurality of audio data extracted by the data extraction unit It is preferable to provide.

  In addition to the configuration of the data output device described above, the data output device according to one aspect of the present invention can randomly extract audio data from a playlist file selected based on a numerical value. preferable.

  The data output method according to one aspect of the present invention includes a numerical value determined in a plurality of output order data files indicating an output order of content data and / or a numerical value determined in content data included in the plurality of output order data files. A numeric extraction step to extract, a data extraction step to extract content data from content data respectively included in a plurality of output order data files based on the numeric values extracted by the numeric extraction step, and content data extracted by the data extraction step And a data output step for outputting.

  A data output program according to one aspect of the present invention determines a computer with numerical values defined in a plurality of output order data files indicating the output order of content data and / or content data included in the plurality of output order data files. Numeric value extracting means for extracting numerical values, data extracting means for extracting content data from content data respectively included in a plurality of output order data files based on the numerical values extracted by the numerical value extracting means, and contents extracted by the data extracting means It is a program for functioning as data output means for outputting data.

  According to the present invention, when there are a plurality of playlists, data output that can easily reproduce the music registered in different playlists without reducing the overall satisfaction of each user An apparatus, a data output method, and a data output program can be provided.

It is a block diagram which shows the hardware constitutions and some software constitutions of the reproducing | regenerating apparatus concerning 1st Embodiment of this invention. 4 is a flowchart showing playlist table generation processing of the playback apparatus shown in FIG. 1. It is a figure which shows an example of the data structure of the playlist table obtained by the process shown in FIG. 3 is a flowchart showing playlist table extraction / playback processing of the playback device shown in FIG. 1. FIG. 5 is a diagram showing an image in which audio data is extracted from a plurality of playlist tables and a new playlist table is generated by the processing shown in FIG. 4. It is a block diagram which shows the hardware constitutions of the reproducing | regenerating apparatus concerning 2nd Embodiment of this invention, and a one part software configuration. 7 is a flowchart showing playlist table generation processing of the playback apparatus shown in FIG. 6. It is a figure which shows an example of the data structure of the playlist table obtained by the process shown in FIG. 7 is a flowchart showing playlist table extraction / playback processing of the playback device shown in FIG. 6. FIG. 10 is a diagram illustrating an image in which audio data is extracted from a plurality of playlist tables and a new playlist table is generated by the processing illustrated in FIG. 9. It is a figure for demonstrating the method to perform the music reproduction which straddles several conventional playlists. It is a figure for demonstrating the method to perform the music reproduction which straddles several conventional playlists. It is a figure for demonstrating the method to perform the music reproduction which straddles several conventional playlists.

As an example of a data output device, a data output method, and a data output program according to an embodiment of the present invention, a playback device, a playback method used by the playback device, and a playback program installed in the playback device will be described below with reference to the accompanying drawings. It demonstrates according to the order shown. In the following description, the playback method used by the playback device will be described together with the description of the operation of the playback device, and the playback program will be performed together with the description of the configuration of the playback device. Note that the playback device, the playback method used by the playback device, and the playback program installed in the playback device described below are merely examples of the data output device, the data output method, and the data output program according to the embodiment of the present invention. However, the present invention is not limited to this embodiment. Moreover, the same code | symbol is attached | subjected to the corresponding component in each figure, and the overlapping description shall be abbreviate | omitted.
1. 1st Embodiment: Playback apparatus 1
1-1. Configuration of playback apparatus 1 1-2. Operation of the playback apparatus 1: play list table generation process 1-3. Data structure of playlist table 1-4. 1. Operation of the playback device 1: playlist table extraction / playback processing Second Embodiment: Playback apparatus 1A
2-1. Configuration of playback apparatus 1A 2-2. Operation of playback device 1A: playlist table generation process 2-3. Data structure of playlist table 2-4. 2. Operation of playback device 1A: playlist table extraction playback processing Modified example

1. 1. First embodiment 1-1. Configuration of Playback Device 1 First, the playback device 1 according to the first embodiment of the present invention will be described. FIG. 1 is a block diagram showing a hardware configuration and a part of a software configuration of the playback apparatus 1 according to the first embodiment of the present invention. The playback device 1 is an in-vehicle audio player installed in a vehicle, for example. A certain family (for example, a father, mother, brother, and sister) shares the playback device 1 with a hard disk 5 that is shared by each of the playlist tables (not shown, claim output order data file, playlist file). Is stored). In addition, a numerical value indicating the degree of favorite is set for the audio data included in each playlist table, and a numerical value indicating the weight is also set for each playlist table.

  The playback device 1 uses the numerical values set for each of the plurality of playlist tables to weight each playlist table, and determines the frequency with which audio data is extracted from each playlist table. At the same time, the audio data recorded in the selected playlist table is extracted at random and continuously reproduced. Although the present embodiment will be described as an in-vehicle audio player, the present invention can also be applied to, for example, a portable portable audio device or a fixed home audio device installed at home. it can.

  As shown in FIG. 1, the playback device 1 includes an operation unit 2, a display unit 3, a communication interface 4, a hard disk 5, a CPU (Central Processing Unit) 6, a RAM (Random Access Memory) 7, and a DAC (Digital to Analog Converter). ) 8, an amplifier 9, an audio signal interface 10, and a speaker 11. Each of these parts is built in a housing (not shown) of a size that fits in an appropriate location of the vehicle, and is connected by a bus. The CPU 6 corresponds to a data extraction unit, an output order data file generation unit, a numerical value extraction unit, and a data extraction unit, and the speaker 11 corresponds to a data output unit. Hereinafter, each structure of the reproducing | regenerating apparatus 1 is demonstrated.

  The operation unit 2 has various buttons, each of which is exposed to the outside from the opening of the housing. The buttons constituting the operation unit 2 are a start button for switching power on and off, a playback button for playing audio data, a skip button for instructing to skip tracks, a volume button for adjusting volume, a normal playback mode, a random playback mode, Mode selection button to select one of playlist playback mode, favorite playlist playback mode, file acquisition button for instructing acquisition of audio data file, start or end of playlist table generation, save playlist table And a playlist table setting button (none of which is not shown) for setting a numerical value indicating the favorite degree of each piece of audio data registered in the playlist table, changing the playback order of the playlist, and the like. Here, the favorite playlist playback mode is a mode in which audio data can be selected from a plurality of playlist tables according to settings desired by the user. The buttons constituting the operation unit 2 may be configured by touch panel buttons displayed on the display unit 3.

  The display unit 3 has a liquid crystal display exposed to the outside from the opening of the housing, and displays various information on the liquid crystal display under the control of the CPU 6. In addition, the display part 3 may be a touch panel type display, when the button which comprises the operation part 2 is comprised by the touch panel button etc.

  The communication interface 4 acquires an audio data file from an external portable audio player 12 connected via a wired or wireless connection means such as a USB (Universal Serial Bus) cable or the like under the control of the CPU 6. The audio data file acquired from the communication interface 4 is an audio data file including compressed audio data such as MP3 (MPEG-1 Audio Layer-3) and WMA (Windows (registered trademark) Media Audio). The audio data file is acquired from the external portable audio player 12 as a group of CD albums, that is, a plurality of audio data files corresponding to each piece of music recorded on one CD album. Can do. Note that the communication interface 4 may be configured to perform wireless communication with the external portable audio player 12.

  The hard disk 5 stores various programs such as a codec and a USB driver (including a playlist table generation program 5B and an audio data reproduction control program 5C described later), and also stores a plurality of audio data files acquired from the communication interface 4. To do. Also, the hard disk 5 stores a plurality of playlist tables (not shown) registered by the user operating the operation unit 2. A flash memory may be used instead of the hard disk 5.

  The CPU 6 executes the playlist table generation program 5B and the audio data reproduction control program 5C stored in the hard disk 5 while using the RAM 7 as a work area. When the CPU 6 is instructed to turn on the power by operating the start button of the operation unit 2, the CPU 6 supplies the DAC 8 with a digital signal obtained by expanding the audio data included in the audio data file of the hard disk 5. The digital signal supplied from the CPU 6 to the DAC 8 is converted into an analog signal, amplified by the amplifier 9, and then output from the audio signal interface 10 to the speaker 11.

  In addition, when a plurality of audio data files acquired via the communication interface 4 are stored in the hard disk 5, the CPU 6 can generate a playlist table in which the tag data of these audio data files are collected. Then, the CPU 6 can specify the playback order of the audio data included in each file by referring to the playlist table.

1-2. Operation of the playback device 1: playlist table generation processing Next, the playlist table generation processing of the playback device 1 will be described. FIG. 2 is a flowchart showing playlist table generation processing of the playback apparatus 1 shown in FIG. The playlist table generation process described below is realized by the CPU 6 as the data extraction unit and the output order data file generation unit reading out the playlist table generation program 5B stored in the hard disk 5 to the RAM 7 and executing it. Is done. The following processing will be described as an example of generating the father's playlist P1 (see FIG. 5).

  START: When the CPU 6 is instructed to turn on the power by operating the start button of the operation unit 2 and is instructed to acquire an audio data file by operating the file acquisition button of the operation unit 2, the playlist table generation process is performed. Start. When the playlist table generation process is started, the CPU 6 proceeds to the process of step S1.

  Step S1: When the acquisition of the audio data file is instructed, the CPU 6 acquires a plurality of audio data files corresponding to the music according to the instruction from the external portable audio player 12 via the communication interface 4, and acquires the acquired audio. The data file is stored in the hard disk 5. If the audio data file is already stored and acquired in the hard disk 5, the process may proceed to step S2 without performing step S1.

  Step S2: The CPU 6 extracts all the tag data of the audio data file stored in the hard disk 5. The tag data extracted in step S2 is data indicating attributes such as the song name, track number, and artist name of the music indicated by the audio data, such as ID3v1 (ID3 Tag Version 1) and ID3v2 (ID3 Tag Version 2). It is embedded in each audio data file as a code string according to the format. After extracting all the tag data, the CPU 6 proceeds to the process of step S3.

  Step S3: The CPU 6 that has extracted the tag data specifies an audio data file to be registered in the playlist table in response to an operation input of the playlist table setting button for generating the playlist table of the operation unit 2. CPU6 will transfer to the process of step S4, if the audio data registered into a playlist table is specified.

  Step S4: The CPU 6 registers the tag data of the audio data to be registered in the playlist table in the playlist table, and inputs an operation input of a playlist table setting button for setting a numerical value indicating the degree of favorite of each piece of audio data. In response, the numerical value is set, and the process proceeds to step S5. The playlist table is created in a storage area on the RAM 7.

  Step S5: If the CPU 6 receives an operation input of the playlist table setting button to end the generation of the playlist table of the operation unit 2 (YES in step S5), the CPU 6 ends the playlist table generation process ( END). On the other hand, when the CPU 6 receives an operation input of the playlist table setting button to generate the playlist table of the operation unit 2 (NO in step S5), the CPU 6 returns to the process of step S3. The CPU 6 repeats the playlist table generation process until the determination in step S5 is YES.

  By such processing, a playlist table indicating the reproduction order of the audio data according to the user's preference is generated. The playlist table generated on the RAM 7 can be stored in the hard disk 5 when the user operates the playlist table setting button of the operation unit 2. The playlist table stored in the hard disk 5 is read out on the RAM 7 again when the playback apparatus 1 is turned off and is activated next time or when the playlist is played back, so that the playback order of the audio data described in the playlist table is restored. It becomes possible to reproduce continuously.

1-3. Next, the data structure of the playlist table generated by the process shown in FIG. 2 will be described. FIG. 3 is a diagram illustrating an example of a data structure of a playlist table obtained by the process illustrated in FIG. The playlist table is an aggregate of a plurality of records each corresponding to an audio data file. Each record constituting the playlist table has five fields of “play order”, “track number”, “song name”, “weighting”, and “favorite level by song”.

  The “reproduction order” field stores rank data indicating the reproduction order of audio data. The records in the playlist table are sorted so that the rank data stored in the “playback rank” field is arranged in ascending order. In the “track number” field, track number data indicating the track number specified by the tag data is stored. In the “song name” field, audio data indicating a song name specified by the tag data is stored. In the “weighting” field, a numerical value for determining the priority of the playlist among a plurality of playlist tables is stored. Therefore, the “weighting” shown in FIG. 3 stores the same value in the same playlist. The “favorite level by song” is a numerical value set for the audio data in the playlist table. As shown in FIG. 3, for example, numerical values in 1 to 5 steps can be set. This numerical value may be determined in advance when audio data is acquired.

  As shown in FIG. 3, since the playlist table obtained by the processing of FIG. 2 is arranged with tag data according to the track number, the stored contents of the “playback order” field of each record and the “track number” "Matches the stored contents. That is, this table has the contents indicating the playback order according to the track numbers of “A1”, “A2”, “A3”, “A4”, “A5”, “A6”, “A7”, “A8”. ing. This playlist table is merely an example. For example, when the user operates the operation unit 2 between step S4 and step S5 shown in FIG. Therefore, the stored contents of the “reproduction order” field and the stored contents of the “track number” are different.

  The CPU 6 that has generated such a playlist table can specify a record in which the “playback order” field is stored as “1” from the playlist table. When the CPU 6 specifies the audio data corresponding to the tag data of the record, the CPU 6 reproduces the audio data. Subsequently, the record in which “2” is stored in the “playback order” field is specified, and the same processing is continued to perform continuous playback. That is, the CPU 6 can continuously reproduce the audio data in the reproduction order by referring to the playlist table.

  In this embodiment, the playback apparatus 1 acquires a plurality of audio data files and generates a playlist table. However, the playlist table that has already been created is acquired together with the plurality of audio data files. It may be stored in the hard disk 5.

1-4. Operation of Playback Device 1: Playlist Table Extraction / Reproduction Process Next, a process of extracting and reproducing an audio data file from a plurality of playlist tables generated by the process shown in FIG. 2 under a predetermined condition will be described. .

  FIG. 4 is a flowchart showing a process of extracting and playing back audio data from a plurality of playlist tables of the playback apparatus 1 shown in FIG. 1 (hereinafter, this process is referred to as “playlist table extraction / playback process”).

  FIG. 5 is a diagram showing an image in which a new playlist table is generated by extracting audio data from a plurality of playlist tables in the process shown in FIG. It should be noted that the playlist table extraction / reproduction processing described below is performed in a state where a plurality of playlist tables P1 to P4 shown in FIG. The CPU 6 as a unit is realized by reading the audio data reproduction control program 5C stored in the hard disk 5 into the RAM 7 and executing it. Hereinafter, each step shown in FIG. 4 will be described.

  START: When the favorite playlist playback mode is selected by the operation of the mode selection button of the operation unit 2 in the state where the power-on is instructed by the operation of the start button of the operation unit 2, the CPU 6 extracts and reproduces the playlist table. Start processing. When the playlist table extraction / playback process is started, the CPU 6 proceeds to the process of step S10.

  Step S10: When the favorite playlist mode is selected by operating the mode selection button of the operation unit 2, the CPU 6 extracts the “weighting” values included in the plurality of playlist tables. Specifically, as shown in FIG. 5, the playlist table P1 created by the father, the playlist table P2 created by the mother, the playlist table P3 created by the older brother, and the playlist table P4 created by the younger sister are included. The “weighting” value to be extracted is extracted. When the CPU 6 extracts the “weighting” values of the playlist tables P1 to P4, the CPU 6 proceeds to the process of step S11.

  Step S11: The CPU 6 sets the frequency of extracting audio data from each playlist table according to the value of each playlist table extracted in step S10, and extracts the audio data. For example, the value of the playlist table P1 created by the father is “4”, the value of the playlist table P2 created by the mother is “3”, the value of the playlist table P3 created by the older brother is “2”, and the sister creates When the numerical value of the playlist table P4 is set to “1”, the smaller the numerical value, the higher the probability that the playlist table is selected. Then, when 10 songs are selected as the new playlist table P5, for example, when the numerical value is 4, each of the weights of the respective numerical values occupies 10% of the total number of audio data to be selected. In this case, it occupies 20% of the total number of audio data to be selected, in case of 2, it accounts for 30% of the total number of audio data to be selected, and in case of 1, it occupies 40% of the total number of audio data to be selected. Associate with.

  Then, as shown in FIG. 5, from the younger sister's playlist table P4, 4 cases corresponding to 40% of the total number of audio data included in the new playlist table P5, and from the older brother's playlist table P3, a new playlist table. 3 cases, which is 30% of the total number of audio data included in P5, 2 cases corresponding to 20% of the total number of audio data included in the new playlist table P5 from the playlist table P2 created by the mother, and a play created by the father From the list table P1, one piece of audio data corresponding to 10% of the total number of audio data included in the new playlist table P5 is extracted. In the present embodiment, the method of extracting from the audio data included in the playlist tables P1 to P4 is a numerical value (black in FIG. 5) stored as “favorite level for each song” of the audio data in each playlist. The number of stars corresponds to the numerical value stored in the “favorite by song” in FIG. 3 and is selected and determined from the largest number (set in five steps). Note that when there are a plurality of items having the same favorite degree value, the audio data having the smallest “reproduction order” value is preferentially extracted. Note that audio data in each playlist may be extracted randomly regardless of the degree of favorite. When the CPU 6 sets the extraction frequency of each playlist table and extracts audio data, the process proceeds to step S12.

  Step S12: The CPU 6 generates a playlist table P5 composed of the tag data of the audio data extracted by the process of step S11. After generating the playlist table P5, the CPU 6 proceeds to the process of step S13.

  Step S13: The CPU 6 starts reproduction based on the reproduction order of the playlist table P5 composed of the tag data of the extracted audio data. Note that when the playlist is generated, the user can determine the playback order by operating the playlist setting button of the operation unit 2. As other methods, for example, any of the order of extraction, the order of music titles, the order of artists, etc. can be applied as the playback order. When the reproduction process is started, a signal obtained by expanding the audio data is output from the DAC 8 to the speaker 11 via the amplifier 9 and emitted. When the reproduction of all the audio data included in the playlist table P5 is completed, the CPU 6 ends the playlist table extraction / reproduction process (END).

  In the playlist table extraction / playback process described above, a new playlist table is created from the plurality of audio data extracted in step S11. In addition, in step S11, audio data is extracted for each song. Then, the audio data may be reproduced each time without creating a playlist table.

  By adopting such a process, while preventing the audio data included in the same playlist table from being continuously extracted, a numerical value indicating the weight set in each playlist table is used to create a new A playlist table can be generated.

  The playback apparatus 1 and the playback method of the playback apparatus 1 according to the first embodiment described above are based on a plurality of audio data files acquired from the portable audio player 12 or the like, or audio data files stored in the hard disk 5 and their audio. A tag table of the data file is extracted to generate a playlist table. Then, when the favorite playlist tables P1 to P4 of the father, mother, brother, and sister as shown in FIG. 5 are created, the numerical values (weighting) set in each playlist table and the favorite degree for each song are set. A new playlist table P5 (corresponding to the playlist file generated by the output order data file generation unit) is created based on the numerical values shown.

  Then, the audio data of each audio data file is continuously reproduced according to the reproduction order indicated by the playlist table P5. Therefore, even if the audio data is registered only in a certain playlist table, the user performs troublesome operations such as adding the new audio data to the playlist table or switching to another playlist table one by one. You will not be forced to

  In addition, as described above, since it is possible to set to select more songs in the order of the playlist table of the sister, brother, mother, father from each of the playlist tables P1 to P4, each user's playlist table. Thus, audio data is extracted based on the conditions determined by the user. That is, when there are a plurality of playlists, the music registered in different playlists can be easily reproduced without reducing the overall satisfaction of each user.

  Further, by installing the playlist table generation program 5B and the audio data reproduction control program 5C stored in the hard disk 5 of the reproduction apparatus 1 in an information processing apparatus such as a computer, the reproduction apparatus 1 having the above-described effects is manufactured. can do.

2. Second Embodiment: Playback apparatus 1A
2-1. Configuration of Playback Device 1A Next, a playback device according to the second embodiment of the present invention will be described. FIG. 6 is a block diagram showing the hardware configuration and part of the software configuration of the playback apparatus 1A according to the second embodiment of the present invention. The playback device 1A is an in-vehicle audio player installed inside the vehicle, and the hard disk 5A has become popular every month of a certain year (for example, May, June, July, August, September). A playlist table in which audio data is recorded (not shown, corresponding to an output order data file in claims and a playlist file) is recorded. The playlist table stored in the playback device 1A stores an artist name for each audio data file.

  In the playback apparatus 1A, a predetermined numerical value is set for each playlist table, and weighting is performed according to the numerical value. The playlist table from which the audio data is extracted can be determined by this weighting. When the playlist table is determined, audio data is extracted by specifying an artist name. Although the present embodiment will be described as an in-vehicle audio player, the present invention can also be applied to, for example, a portable portable audio device or a fixed home audio device installed at home. In addition, the same code | symbol is attached | subjected to the component corresponding to the reproducing | regenerating apparatus 1 of 1st Embodiment of this invention, and the overlapping description is abbreviate | omitted.

  The buttons constituting the operation unit 2A of the playback apparatus 1A shown in FIG. 6 are the buttons included in the play list table setting button and the audio included in the playlist table, in addition to the buttons forming the operation unit 2 of the playback apparatus 1 described in the first embodiment. A function (both not shown) that can specify the artist name of the data is included. The hard disk 5A stores a playlist table generation program 5D and an audio data reproduction control program 5E.

  The playlist table generation program 5D is partly different from the playlist table generation program 5B described above, and generates a playlist table by associating a numerical value and an artist name for each audio data for each playlist table. Can do.

  The audio data reproduction control program 5E is partially different in operation from the audio data reproduction control program 5C described above, and a numerical value indicating the weight included in the playlist table generated by the playlist table generation program 5D and each audio data Audio data can be extracted based on the artist name.

2-2. Operation of Playback Device 1A: Generation of Playlist Table Next, a method of generating the playlist table of the playback device 1A will be described. FIG. 7 is a flowchart showing the playlist table generation processing of the playback device 1A shown in FIG. The playlist table generation process described below is realized by the CPU 6 as the data extraction unit and the output order data file generation unit reading out the playlist table generation program 5D stored in the hard disk 5A to the RAM 7 and executing it. Is done. Hereinafter, each step will be described.

  START: When the CPU 6 is instructed to turn on the power by operating the start button of the operation unit 2 and is instructed to acquire an audio data file by operating the file acquisition button of the operation unit 2A, the playlist table generation process To start. When the playlist table generation process is started, the CPU 6 proceeds to the process of step S20.

  Step S20: When the acquisition of the audio data file is instructed, the CPU 6 acquires a plurality of audio data files corresponding to the music according to the instruction from the external portable audio player 12 through the communication interface 4, and acquires the acquired audio. The data file is stored in the hard disk 5A. If the audio data file is already stored and acquired in the hard disk 5A, the process may proceed to step S21 without performing step S20.

  Step S21: The CPU 6 extracts tag data of the audio data file stored in the hard disk 5A. The tag data extracted in step S21 is data indicating attributes such as the song name, track number, and artist name of the music indicated by the audio data, such as ID3v1 (ID3 Tag Version 1) and ID3v2 (ID3 Tag Version 2). It is embedded in each audio data file as a code string according to the format.

  Step S22: The CPU 6 that has extracted the tag data specifies an audio data file to be registered in the playlist table in response to the operation input of the playlist table setting button for generating the playlist table of the operation unit 2, and in step S23. Transition to processing.

  Step S23: The CPU 6 registers the tag data of the audio data to be registered in the playlist table in the playlist table, and proceeds to the process in step S24. The playlist table is created in a storage area on the RAM 7.

  Step S24: When there is an input for completion of playlist table creation from the playlist table setting button of the operation unit 2A (YES in step S24), the CPU 6 ends the playlist table generation process (END). On the other hand, when there is an input for generating a playlist table from the playlist table setting button of the operation unit 2A (NO in step S24), the CPU 6 returns to the process of step S22. The CPU 6 repeats the playlist table generation process until the determination in step S24 is YES.

  By such processing, a playlist table indicating the reproduction order of the audio data according to the user's preference is generated. The playlist table generated on the RAM 7 can be stored in the hard disk 5A when the user operates the playlist table save button of the operation unit 2A. The playlist table stored in the hard disk 5A is read out on the RAM 7 again when the playback apparatus 1A is turned off and is activated next time or when the playlist is played back, so that the playback order of the audio data described in the playlist table is restored. It becomes possible to reproduce continuously.

2-3. Next, the data structure of the playlist table generated by the process shown in FIG. 7 will be described. FIG. 8 is a diagram showing an example of the data structure of the playlist table obtained by the process shown in FIG. The following process will be described as an example of generating the August playlist P6 (see FIG. 10).

  The playlist table is an aggregate of a plurality of records each corresponding to an audio data file. Each record constituting the playlist table has five fields of “reproduction order”, “track number”, “song name”, “artist name”, and “weight”.

  The “reproduction order” field stores rank data indicating the reproduction order of audio data. The records in the playlist table are sorted so that the rank data stored in the “playback rank” field is arranged in ascending order. In the “track number” field, track number data indicating the track number specified by the tag data is stored. In the “song name” field, song name data indicating audio data specified by the tag data is stored. The artist name of the audio data is stored in the “artist name” field. In the “weighting” field, a numerical value for determining the priority of the playlist among a plurality of playlist tables is stored.

  As shown in FIG. 8, since the playlist table obtained by the processing shown in FIG. 7 is arranged with tag data according to the track number, the stored contents of the “play order” field of each record and “track” The stored contents of “No.” match. That is, this table indicates the playback order of “l1”, “l2”, “l3”, “l4”, “l5”, “l6”, “l7”, “l8”, “l9”, “l10”. It is a content. This playlist table is merely an example. For example, when the user operates the operation unit 2 between step S23 and step S24 shown in FIG. The stored contents of the “reproduction order” field and the stored contents of the “track number” are different.

2-4. Operation of Playback Device 1A: Playlist Table Extraction / Reproduction Process Subsequently, an audio data file is extracted from a plurality of playlist tables generated by the playlist table generation process shown in FIG. Processing will be described. FIG. 9 is a flowchart showing playlist table extraction / playback processing of the playback device 1A shown in FIG. FIG. 10 is a diagram showing an image in which a new playlist table P10 is generated by extracting audio data from the plurality of playlist tables P6 to P9 in the process shown in FIG. The playlist table extraction / reproduction process described below is performed by the CPU 6 as a numerical value extraction unit, a data extraction unit, and an output order data file generation unit in a state where a plurality of playlists P6 to P9 are stored in the hard disk 5A. The audio data reproduction control program 5E stored in the hard disk 5A is read into the RAM 7 and executed.

  START: When the favorite play list reproduction mode is selected by the operation of the mode selection button of the operation unit 2A in the state where the power-on is instructed by the operation of the start button of the operation unit 2A, the CPU 6 extracts and reproduces the playlist table. Start processing. When the playlist table extraction / playback process is started, the CPU 6 proceeds to the process of step S30.

  Step S30: When the “favorite playlist playback” mode is selected in response to the operation of the mode selection button of the operation unit 2A, the CPU 6 extracts the “weighting” values included in the playlist tables P6 to P9. . Specifically, as shown in FIG. 10, a playlist table P6 containing August audio data, a playlist table P7 containing July audio data, and a play record containing June audio data. The “weighting” values set in the playlist table P9 in which audio data for May and May are recorded in the list table P8 are extracted. When the CPU 6 extracts the “weighting” values of the playlist tables P6 to P9, the process proceeds to step S31.

  Step S31: The CPU 6 sets the frequency with which the audio data is extracted from the playlist tables P6 to P9 based on the numerical values set in each playlist table extracted in step S30. For example, as shown in FIG. 10, the value of “weighting” in the playlist table P6 in which audio data for August is recorded is 4, and the value of “weighting” in the playlist table P7 in which audio data for July is recorded. When the “weighting” value of the playlist table P8 containing the audio data for March and June is 2 and the “weighting” value of the playlist table P9 containing the audio data for May is 1 In addition, the smaller the numerical value, the higher the probability that the playlist table will be selected. Then, when 10 pieces of audio data are selected as the new playlist table P10, for example, when the numerical value is 4 for each “weighting” of each numerical value, 10% of the total number of audio data to be selected is selected. In the case of 3, it accounts for 20% of the total number of audio data to be selected, in the case of 2, it accounts for 30% of the total number of audio data to be selected, and in the case of 1, it accounts for 40% of the total number of audio data to be selected. It is related so that it accounts for%.

  Then, as shown in FIG. 10, from the playlist table P9 in which the audio data for May is recorded, the audio data for June, which is 40% of the total number of audio data included in the new playlist table P10, is June. From the recorded playlist table P8, the new playlist table P10 is updated from the playlist table P7 in which the audio data in July, which is three cases corresponding to 30% of the total number of audio data included in the new playlist table P10, is recorded. 2 cases that are 20% of the total number of audio data included in the playlist, and one audio that is 10% of the total number of audio data included in the new playlist table P10 from the playlist table P6 in which the audio data of August is recorded Data will be extractedWhen the selection frequency of each playlist table is determined, the CPU 6 proceeds to the process of step S32.

  Step S32: The CPU 6 determines a playlist table to be selected based on the selection frequency set in step S31. When the playlist table to be selected is determined, the CPU 6 proceeds to the process of step S33.

  Step S33: The CPU 6 extracts audio data of the designated artist name from the audio data included in the playlist table selected in step S32 and stores it in the RAM 7. In the present embodiment, audio data whose artist name is “FYJMF” is extracted from a plurality of audio data included in the selected playlist table. If there are a plurality of artists having the same artist name, the audio data having the smallest “playback order” may be extracted with priority. When there are a plurality of playlists having the same artist name, audio data may be extracted randomly regardless of the “reproduction order”. When the audio data to be extracted is determined, the CPU 6 proceeds to the process of step S34.

  Step S34: The CPU 6 determines whether or not a predetermined number of pieces of audio data (for example, 10 pieces as shown in FIG. 10) have been extracted in the RAM 7 in order to generate a new playlist table P10. If a predetermined number of pieces of audio data have been extracted (YES in step S34), the CPU 6 proceeds to the process in step S35. On the other hand, if the predetermined number of pieces of audio data have not been extracted (NO in step S34), the CPU 6 returns to the process of step S32 and repeats the process until the predetermined number of pieces of audio data are extracted.

  Step S35: The CPU 6 creates a new playlist table P10 based on the tag data of the audio data extracted on the RAM 7. When the CPU 6 creates a new playlist table P10, the process proceeds to step S36. Note that when the playlist is generated, the user can determine the playback order by operating the playlist setting button of the operation unit 2. As other methods, for example, any of the order of extraction, the order of music titles, the order of artists, etc. can be applied as the playback order.

  Step S36: When the reproduction process is started, a signal obtained by expanding the audio data is output from the DAC 8 to the speaker 11 via the amplifier 9 and emitted. When the reproduction of all the audio data included in the playlist table P10 is completed, the CPU 6 ends the process (END).

  The playback device 1A and the playback method of the playback device 1A according to the second embodiment described above are based on a plurality of audio data files acquired from the portable audio player 12 or the like or audio data files stored in the hard disk 5A. A tag table of the data file is extracted to generate a playlist table. When a plurality of playlist tables P6 to P9 are created, the playlist table to be extracted is determined by the numerical value (weighting) set in each playlist table, and among the audio data included in the playlist table. To extract audio data that matches the specified artist name. Then, the playlist table to be extracted is determined, and the same process is repeated until a predetermined number of songs are extracted. When a predetermined number of songs is extracted, a new playlist table P10 (corresponding to the playlist file generated by the output order data file generation unit) is created.

  Then, the audio data of each audio data file is continuously reproduced according to the reproduction order indicated by the playlist table P10. Therefore, even if the audio data is registered only in a certain playlist table, the user performs troublesome operations such as adding the new audio data to the playlist table or switching to another playlist table one by one. You will not be forced to That is, when there are a plurality of playlists, the music registered in different playlists can be easily reproduced.

  In the playlist table extraction / playback process described above, a new playlist table is created from the plurality of audio data extracted in step S33. Alternatively, audio data is extracted for each song, and the step is performed. In S35, the audio data may be reproduced each time without creating the playlist table.

  In addition, weighting is performed using a numerical value set for each playlist table, and each playlist is selected at a predetermined ratio from the existing playlist table, and audio data matching the specified artist name is selected. Extract from the playlist table.

  With such a process, for example, when there are a plurality of playlist tables that record monthly hit charts, audio data of the same artist can be easily extracted. In this embodiment, when there are a plurality of audio data having the same artist name in the same playlist table, the audio data with the earlier reproduction order is selected preferentially. However, the audio data with the later reproduction order is selected. Or a numerical value indicating the degree of favorite for each song as in the first embodiment may be set in advance and selected based on the numerical value.

  Further, by installing the audio data reproduction control program 5E stored in the hard disk 5A of the reproduction apparatus 1A in an information processing apparatus such as a computer, the reproduction apparatus 1A having the above-described effects can be manufactured.

3. Modifications As described above, the playback devices 1 and 1A have been described as the embodiments of the present invention. However, the present invention is not limited thereto, and various modifications and changes can be made without departing from the scope of the invention. is there.

  For example, in the playback device 1 according to the first embodiment of the present invention, the user sets the weight of each playlist table and the favorite degree for each song by operating the playlist table setting button of the operation unit 2. In addition, date / time information is acquired from a navigation system (not shown) or the like, and the reproduced day of the week and time zone of each playlist table are stored in the hard disk 5 as reproduction history information. Thus, the numerical value used as the “weighting” of each playlist table may be dynamically changed according to the day of the week and the time zone when the favorite playlist reproduction is selected.

  With this processing, if the user of the playback device 1 tends to use the specific day of the week or time zone, only the favorite playlist playback is selected by the mode selection button of the operation unit 2. Thus, it is possible to preferentially select the audio data in the playlist table that the user who uses on each day of the week or time zone is supposed to hear.

  Further, in each of the playback devices 1 and 1A of the above-described embodiments, the “weighting” value of the playlist table is set by performing the button operation of the operation unit 2 by each individual. A value of “weighting” may be automatically set based on recognizable information. For example, a value of “weighting” is set for each individual in advance in the hard disks 5 and 5A, and the manufacturing number and telephone number of the mobile phone and the name of the owner are stored in association with each other as information for identifying the individual. Keep it. When a mobile phone is connected via the communication interface 4 of the playback device 1 or 1A, the manufacturing number or phone number of the mobile phone is automatically acquired and the corresponding owner is recognized. Then, a playlist table may be created by setting a preset “weighting” value for the recognized owner. As another method for recognizing an individual, the individual, the weight of the individual and the “weighting” value for each individual are associated in advance and stored in the hard disks 5 and 5A, and measured when sitting on a vehicle seat. The obtained weight data or the like may be acquired from a control unit (not shown) of the vehicle so that an individual can be recognized.

  With such processing, the “weighting” value set for each individual can be easily set without the user performing button operations on the operation unit 2 one by one.

  In the playlist table generation program 5B and the audio data playback control program 5C used in the playback device 1 of the first embodiment described above, a value set for each playlist and a set for each audio data included in the playlist. Although the playlist and audio data are extracted using the numerical values that are set, the audio data may be extracted using only the numerical values set for each audio data. In this case, it is necessary to set a numerical value that is unique within all playlists to be extracted.

  In addition, the functions of the constituent blocks included in the playback devices 1 and 1A according to the above embodiments may be realized in whole or in part by software, or at least part of them may be realized by hardware. In addition, all or part of the computer programs included in the playback apparatuses 1 and 1A according to the above-described embodiments may be recorded on a computer-readable recording medium such as a memory card, a CD, a DVD (digital versatile disk), or an MO (magnetic-optical). It may be stored and distributed in a computer, installed in another computer, for example, a mobile phone, an audio device, an electronic watch, etc., and executed as the playback device 1, 1A. Further, these programs may be stored in a disk device or the like of a server device on the Internet, and may be downloaded onto a remote computer, for example, superimposed on a carrier wave.

DESCRIPTION OF SYMBOLS 1,1A ... Reproduction | regeneration apparatus (data output device) 2, 2A ... Operation part, 3 ... Display part, 4 ... Communication interface 5, 5A ... Hard disk, 5B, 5D ... Playlist table generation program, 5C, 5E ... audio data reproduction control program (data output program), 6 ... CPU (numerical value extraction unit, data extraction unit, output order data file generation unit), 7 ... RAM 8 ... DAC, 9 ... amplifier, 10 ... audio signal interface, 11 ... speaker, 12 ... portable audio player

Claims (8)

A numerical value extraction unit for extracting a numerical value defined in a plurality of output order data files indicating an output order of content data and / or a numerical value defined in content data included in the plurality of output order data files;
A data extraction unit for extracting the content data from the content data respectively included in the plurality of output order data files based on the numerical values extracted by the numerical value extraction unit;
A data output unit for outputting the content data extracted by the data extraction unit;
A data output device comprising: The data output device according to claim 1, wherein
A data output apparatus comprising: an output order data file generation unit that generates an output order data file indicating an output order of the plurality of content data extracted by the data extraction unit. The data output device according to claim 1 or 2,
The numerical value defined in the output order data file and / or the numerical value defined for each content data is a value used for determining the order in which the data output unit outputs the content data. Data output device. In the data output device according to any one of claims 1 to 3,
The content data is audio data,
The output order data file is a playlist file indicating the playback order of the audio data,
The numerical value extracted by the numerical value extraction unit is determined in the audio data included in the playlist and / or the playlist,
The data extraction unit extracts the audio data based on the playlist and / or a numerical value determined for the audio data included in the playlist,
The data output device, wherein the data output unit reproduces the audio data extracted by the data extraction unit. The data output device according to claim 4, wherein
A data output apparatus comprising: an output order data file generation unit that generates a playlist file indicating a reproduction order of the plurality of audio data extracted by the data extraction unit. The data output device according to claim 4 or 5,
The data output device, wherein the data extraction unit randomly extracts audio data from the playlist file selected based on the numerical value. A numerical value extraction step for extracting a numerical value defined in a plurality of output order data files indicating an output order of content data and / or a numerical value defined in content data included in the plurality of output order data files;
A data extraction step of extracting the content data from the content data respectively included in the plurality of output order data files based on the numerical values extracted by the numerical value extraction step;
A data output step of outputting the content data extracted in the data extraction step. Computer
Numerical value extraction means for extracting numerical values determined in a plurality of output order data files indicating the output order of content data and / or numerical values determined in content data included in the plurality of output order data files;
Data extracting means for extracting the content data from the content data respectively included in the plurality of output order data files based on the numerical values extracted by the numerical value extracting means;
Data output means for outputting the content data extracted by the data extraction means;
Data output program to function as

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