JP2006107678A - Music reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve usability relative to provision of music. <P>SOLUTION: An onboard audio device 10 is provided with a music list write control part 14a writing the music lists of media and attribute information about the music list in a music list storage table 13a whenever a new medium is held in a CD changer 20 or an MD changer 30, a reproduction music list making part 14b extracting a music list satisfying reproduction object selecting conditions from among music lists of each medium and making "the reproduction music list" on the basis of the attribute information about the music lists of each medium written in the music list storage table 13a, and a music reproducing part 14c performing the prescribed trick play for the "reproduction music list" and reproducing music. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a music playback device that reads music information from a medium (for example, a recording medium such as a CD, MD, and CD-R) and plays back the music.

  2. Description of the Related Art Conventionally, music playback apparatuses that read music information from media (for example, recording media such as CD, MD, and CD-R) and play music are known. For example, in Patent Document 1, a plurality of recording media of different types are generated by generating playback unit data (playback list) recorded on different types of recording media and performing playback operation control based on the playback list. A playback apparatus that sequentially plays back playback unit data for all playback unit data groups recorded in the above-mentioned document is disclosed.

JP 2000-149386 A

  According to this prior art, it is possible to reproduce a reproduction unit data (one reproduction unit such as a track / file) as a target, without separating a plurality of types of media.

  However, the above-described prior art (Patent Document 1) merely reproduces a playlist created for music stored in a plurality of media in sequence, and has a problem that usability for providing music is low. there were.

  That is, in recent years, music information that has been subjected to data compression by a compression method such as MP3 or WMA is stored in a music medium such as a CD-ROM or a flash ROM, and the number of music files stored in the music medium is as follows. However, there are cases where it is difficult for the user to comprehensively grasp the music information stored in the music media because the number of files may climb up to several hundred. The same applies to the case where a CD changer, MD changer, or the like is provided in the music playback device, since the location of the music stored in each medium (each CD or each MD) becomes complicated.

  For this reason, as in the above-described prior art, if a “play list” is created by combining songs recorded on each medium (that is, a plurality of similar media or different media), the “play list” May not include music that the user wants to listen to.

  In addition, the above-described conventional technique plays a uniform manner when playing back the music listed as such a “play list”. For this play list, “RANDOM”, “REPEAT”, “SCAN” The trick play such as "cannot be performed" restricts the way the user enjoys music.

  Therefore, the present invention has been made to solve the above-described problems (problems) caused by the prior art, and an object of the present invention is to provide a music playback device capable of improving usability related to music provision.

  In order to solve the above-mentioned problems and achieve the object, a music playback device according to the invention of claim 1 is a music playback device that reads music information from media and plays back music, A song list writing unit that writes a song list of the media to a song list storage unit each time a new media is held, and a predetermined trick play for the song list of each medium written in the song list storage unit And music playback means for playing back music.

  According to a second aspect of the present invention, there is provided a music playback device according to the above invention, wherein the music playback device reads music information from a plurality of different media and plays back music, and the music list writing means Writes the music list of the different media in the music list storage means, and the music playback means performs a predetermined trick play on the music lists of the different types of media written in the music list storage means to perform music. It is characterized by playing back.

  According to a third aspect of the present invention, there is provided a music playback apparatus according to the above invention, wherein a music to be played when performing a predetermined trick play on the music list of each medium written in the music list storage means. If the music information is not stored in the holding media of the music playback device, the media request notification means for notifying that the media storing the music information of the music to be played back is required is further provided. And

  According to a fourth aspect of the present invention, there is provided the music playback device according to the above invention, wherein the music playback means performs a predetermined trick play on the music list of each medium written in the music list storage means. If the music information of the music to be played is not stored in the holding medium of the music playback device, the music information of the music to be played is ignored while ignoring the music to be played And

  According to a fifth aspect of the present invention, there is provided a music playback apparatus according to the above invention, wherein a playback target selection condition receiving means for receiving a condition relating to music attribute information as a condition for selecting a music to be played from the music list. The music list writing means writes the attribute information related to the music list together with the music list of the media, and the music playback means writes the music list to the music list of each medium written in the music list storage means. Based on the attribute information, a music list that satisfies the playback target selection condition received by the playback target selection condition receiving unit is extracted from the music list of each medium, and a predetermined trick is applied to the extracted music list. It is characterized by playing and playing music.

  According to a sixth aspect of the present invention, there is provided a music playback device according to the above invention, wherein the music playback means generates a music list that satisfies the playback target selection condition even when the media held by the music playback device is replaced. The music list extraction process to extract is performed.

  According to a seventh aspect of the present invention, there is provided the music playback device according to the above invention, wherein the music playback means is received by the playback target selection condition receiving means from a music list stored in a holding medium of the music playback device. A music list satisfying the selected reproduction target selection condition is extracted, and music is reproduced by performing a predetermined trick play on the extracted music list.

  According to the present invention, every time a new medium is held in the music playback device, the music list of the medium is written in the music list storage means, and the music list of each medium written in the music list storage means is predetermined. Therefore, it is possible to obtain a music reproducing apparatus capable of improving the usability associated with providing music.

  Further, according to the present invention, a music list of different media is written in the music list storage means, and music is reproduced by performing a predetermined trick play on the music lists of a plurality of different media written in the music list storage means. As a result, it is possible to obtain a music playback device that can further improve the usability for providing music.

  Further, according to the present invention, when performing a predetermined trick play on the music list of each medium written in the music list storage means, the music information of the music to be played is stored in the holding medium of the music playback device. If it is not stored, notification that the music information of the music to be played is stored is required, so the desired music can be obtained even if the music desired by the user is not recorded on the holding medium. It is possible to obtain a music playback device capable of notifying the owned media on which the is recorded.

  Further, according to the present invention, when performing a predetermined trick play on the music list of each medium written in the music list storage means, the music information of the music to be played is stored in the holding medium of the music playback device. If it is not stored, the music information of the music to be played is ignored and the music information of the other music to be played is played back. It is possible to obtain a music reproducing apparatus capable of continuously reproducing music.

  Further, according to the present invention, as a condition for selecting a music to be reproduced from the music list, a condition related to the attribute information of the music is accepted, and the attribute information related to the music list is written together with the music music list, Based on the attribute information relating to the music list of each medium written in the list storage means, a music list that satisfies the playback target selection condition is extracted from the music list of each medium, and a predetermined list is selected for the extracted music list. Therefore, it is possible to obtain a music reproducing apparatus capable of improving the usability of providing music more effectively.

  In addition, according to the present invention, even when the media held by the music playback device is replaced, the music list extraction process for extracting the music list that satisfies the playback target selection condition is performed. Even in this case, there is an effect that a music reproducing apparatus capable of regularly reproducing the music desired by the user can be obtained.

  Further, according to the present invention, a music list that satisfies the playback target selection condition is extracted from the music list stored in the holding medium of the music playback device, and a predetermined trick play is performed on the extracted music list. Therefore, it is possible to avoid the situation that the music information of the music to be played back is not stored, and the user can select the music that the user wants without having to newly insert or replace media. There is an effect that a music reproducing apparatus capable of reproducing can be obtained.

  Exemplary embodiments of a music playback device according to the present invention mounted on a vehicle will be described below in detail with reference to the accompanying drawings. In the following, after describing the outline and features of the in-vehicle audio apparatus according to the present invention, the in-vehicle audio apparatus according to the first embodiment will be described. Finally, various modifications (example 2) will be described as other embodiments. ) Will be explained.

(Overview and features)
First, the outline | summary and characteristic of the vehicle-mounted audio apparatus based on this invention are demonstrated. FIG. 1 is a block diagram illustrating the configuration of the in-vehicle audio apparatus according to the first embodiment. The in-vehicle audio device 10 reads music information from a medium (for example, a recording medium such as a CD, MD, CD-R, etc.) and reproduces music.

  Here, the in-vehicle audio device 10 according to the present invention is a “music list writing process” in which the music list of the media is written in the music list storage table 13a each time a new media is held in the in-vehicle audio device 10, The main feature is “music playback processing” in which music is played by performing a predetermined trick play on the music list of each medium written in the list storage table 13a, and this series of processing improves usability for providing music. So that it can be improved.

  More specifically, in the in-vehicle audio device 10, every time a new medium (for example, a music medium storing music contents such as “Album” or “Single”) is inserted into the device, the medium Are stored in the music list storage table 13a (that is, the TOC information and track information of the recorded music).

  In this way, the reason for dynamically writing and accumulating the media music list in the music list storage table 13a is that by expanding the selection range of the “music list”, the user can enter the “music list”. This is to include more songs that you want to listen to. Further, by writing a song list of different media (for example, “CD”, “MD”, etc.) inserted in the CD changer 20 or the MD changer 30 in the song list storage table 13a, the selection range of the “music list” is further increased. It can be expanded.

  In the in-vehicle audio apparatus 10, each medium written in the music list storage table 13a (for example, music media such as “CD” and “MD” in which music contents such as “Album” and “Single” are stored) is stored). A predetermined trick play (for example, “Repeat”, “Random”, or “Scan”) is performed on the music list of No. 1 to reproduce the music. As described above, the reason why the music is reproduced by performing a predetermined trick play on the music list of each medium is to diversify the reproduction forms for the music list across a plurality of media.

  Therefore, in the above-described example of the prior art, the user can select the playback music from a narrow selection target and play the selected playback music list (that is, “play list”) uniformly. Instead of restricting how to enjoy the music, instead of dynamically writing and accumulating a media song list, playing a predetermined trick play on the accumulated song list, More songs that the user wants to listen to can be included in the “song list”, and further, the playback form for the song list across multiple media can be diversified. As the main feature described above, Usability related to music provision can be improved.

  Next, the in-vehicle audio apparatus according to the first embodiment will be described. In addition, after demonstrating the structure of the vehicle-mounted audio apparatus which concerns on a present Example 1, suppose that the procedure of the various processes of this vehicle-mounted audio apparatus is demonstrated.

(Configuration of in-vehicle audio system)
FIG. 1 is a block diagram illustrating the configuration of the in-vehicle audio apparatus according to the first embodiment. As shown in the figure, the in-vehicle audio device 10 includes a CD changer 20, an MD changer 30, a touch panel 11, a speaker 12, a storage unit 13, and a control unit 14.

  Among these, the CD changer 20 includes a CD insertion slot 21 that is an insertion slot for “CD” and a CD storage unit CD-1, CD-2... CD that stores “CD” inserted from the CD insertion slot 21. -N, a CD drive 22 that reads "music information" and "music list" from "CD" stored in the CD storage unit based on a media reading instruction from the control unit 14, and a media reading instruction from the control unit 14 And a CD changer control unit 23 for mounting the CD storage unit corresponding to the above in the CD drive 22.

  For example, when “CD” is inserted into the CD insertion slot 21 and the inserted “CD” is stored in the CD storage unit CD-2, a song list reading instruction is issued from the song list writing control unit 14a. Specifically, the CD changer control unit 23 mounts the CD storage unit CD-2 in the CD drive 22, and then the CD drive 22 stores the music list of “CD” stored in the CD storage unit CD-2 and The attribute information related to the music is read and transmitted to the music list writing control unit 14a. At this time, “No” in the CD storage unit storing such “CD” is also transmitted at the same time.

  The MD changer 30 includes an MD insertion port 31 that is an insertion port of “MD”, and MD storage units MD-1, MD-2... MD-n that store “MD” inserted from the MD insertion port 31. The MD drive 32 reads “music information” and “music list” from “MD” stored in the CD storage unit based on the media reading instruction from the control unit 14, and corresponds to the media reading instruction from the control unit 14. And an MD changer control unit 33 for mounting the MD storage unit on the MD drive 32.

  For example, as with the CD changer 20, when “MD” is inserted into the MD insertion slot 31, and the inserted “MD” is stored in the MD storage unit MD-2, the music list writing control unit 14a A list reading instruction is issued. Specifically, the MD changer control unit 33 attaches the MD storage unit MD-2 to the MD drive 32, and then the MD drive 32 stores the music list of “MD” stored in the MD storage unit MD-2 and The attribute information related to the music is read and transmitted to the music list writing control unit 14a. At this time, “No” of the MD storage unit storing the “MD” is also transmitted at the same time.

  The input unit 11a is an interface that accepts an input operation from the user, and for example, accepts input of a reproduction target selection condition (see FIGS. 4-1 and 4-2) and trick play conditions.

  The display unit 11b is a display device such as a liquid crystal panel or a display, and includes, for example, a selection condition setting screen 210 and 220 (see FIGS. 4-1 and 4-2), a trick play condition setting screen, and a media insertion notification screen. indicate. In the first embodiment, both the input unit 11a and the display unit 11b are configured as the touch panel 11 together.

  The speaker 12 is a speaker that amplifies the music signal input by the music playback unit 14c and outputs the sound, and the number of speakers that can provide an acoustic space according to a user request is provided.

  The storage unit 13 is a storage unit (storage unit) that stores data and programs necessary for various processes performed by the control unit 14, and includes a music list storage table 13a. The music list storage table 13a is a table that accumulates and stores a music list of each medium written by the music list writing processing unit 14a and attribute information related to the music list.

  More specifically, as shown in FIG. 2, for each song list (list No.) of each medium, the TOC information “00:54:24”, the album name “Album 1”, and the song name “ The track list such as “Track 11”, the attribute information related to the track list such as artist name “Artist A” and genre “Jazz”, and the disk No. “CD-1” storing the media are stored in association with each other. To do.

  The control unit 14 is a processing unit that has a control program such as an OS (Operating System), a program that defines various processing procedures, and an internal memory for storing necessary data, and executes various processes using these. Particularly, those closely related to the present invention include a music list writing control unit 14a, a reproduction music list creation unit 14b, a music reproduction unit 14c, and a media insertion notification unit 14d.

  Among these, the music list writing control unit 14 a is a processing unit that controls to write the music list of the media in the music list storage table 13 a every time a new medium is inserted into the in-vehicle audio device 10. Specifically, a music list of a different medium (for example, “CD” or “MD”) inserted in the CD changer 20 or the MD changer 30 is written in the music list storage table 13a.

  More specifically, the music list writing control unit 14a inserts the “CD” into the CD insertion slot 21 by the user, and the inserted “CD” is stored in the CD storage unit CD-2. A “music list read instruction” is transmitted to the changer control unit 23, and the music list and attribute information related to the music list are read from the inserted “CD”.

  If the information of “CD” is not written in the song list storage table 13a, the song list “No” is assigned to the inserted “CD”, and the TOC information, album name, and the media are recorded. The song list such as the title of the recorded song, the attribute information related to the song list such as the artist name and the genre “Jazz”, and the number of the CD storage unit of the inserted “CD” (ie, disc No.) “CD-2” Is written in the music list storage table 13a.

  When the information of “CD” has already been written in the music list storage table 13a (that is, “Album 1,” “Album 2,” “Album 3,” etc., the music list has already been written. When a medium is inserted), the CD storage unit No. (ie, disc No.) “CD-2” of the inserted “CD” is written in the song list “No” of the “CD” and stored in the song list. The table 13a is updated.

  Based on the attribute information related to the music list of each medium stored in the music list storage table 13a, the reproduction music list creation unit 14b sets the reproduction target selection condition accepted by the touch panel 11 from the music list of each medium. It is a processing unit that extracts a music list that satisfies the requirements and creates a “reproduced music list”.

  Specifically, when a trick play instruction for the “music list” is received, the touch panel 11 displays selection condition setting screens 210 and 220 as shown in FIGS. 4A and 4B. To accept the input of “reproduction target selection condition”.

  Then, when the condition regarding the album or the single is accepted as the “reproduction target selection condition” (that is, when the “title” is pressed on the selection condition setting screen 210), the reproduction music list creation unit 14b stores the music list storage The track information of the designated album or the designated single is extracted from the table 13a to create a “reproduced music list”.

  In addition, when a condition regarding an artist is received as the “reproduction target selection condition” (that is, when “artist” is pressed on the selection condition setting screen 210), the reproduction music list creation unit 14b performs the music list storage table 13a. The track information of the designated artist is extracted from the “reproduced music list”.

  Further, when a condition relating to a genre is accepted as the “reproduction target selection condition” (that is, when “genre” is pressed on the selection condition setting screen 210), the reproduction music list creation unit 14b is as shown in FIG. In addition, the track information of the specified genre (for example, “Pops”) received on the selection condition setting screen 220 in conjunction with the selection condition setting screen 210 is extracted from the music list storage table 13a to create a “reproduced music list”. .

  In addition, when any narrowing condition is not accepted as the “reproduction target selection condition” (that is, when “all play” is pressed on the selection condition setting screen 210), the reproduction music list creation unit 14b displays the music list The entire music list stored in the storage table 13a is extracted as a “reproduced music list”.

  The designated conditions such as designated album (designated single), designated artist or designated genre may be specified in advance, or selected in conjunction with the input of the selection condition setting screen 210. You may make it accept on the condition setting screen 220 (refer FIG. 4-2).

  The music playback unit 14c is a processing unit that plays music by performing a predetermined trick play on the “playback music list” created by the playback music list creation unit 14b. Specifically, music is reproduced by performing trick play such as “Repeat”, “Random”, or “Scan” on the “reproduced music list”.

  More specifically, when the creation of the “reproduction song list” by the reproduction song list creation unit 14b is completed, the touch panel 11 displays trick play conditions (eg, “Repeat”, “Random”, “Scan”, etc. designation). Accept input.

  When “Repeat” is accepted as the trick play condition, the music playback unit 14c sequentially performs repeated playback on the tracks registered in the “playback music list”. For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are recursively sequentially reproduced.

  When “Random” is accepted as the trick play condition, the music playback unit 14c sequentially executes random playback for the tracks registered in the “playback music list”. For example, in the case of the “reproduced music list” shown in FIG. 5, the music to be reproduced is randomly selected from “Track 21” to “Track 33” using a table in which a random number sequence is stored. Select and play sequentially.

  When “Scan” is accepted as the trick play condition, the music playback unit 14c sequentially plays back the tracks registered in the “playback music list” by a predetermined time. For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are sequentially reproduced every 10 seconds.

  When the trick play condition is not accepted, the music playback unit 14c sequentially performs normal playback for the tracks registered in the “playback music list”. For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are sequentially reproduced.

  Subsequently, when the music playback unit 14c starts the playback operation according to these “trick play conditions”, if the music information of the music to be played back is stored in the CD changer 20 or the MD changer 30, The music information of the music to be played is played back by the playback operation according to the “trick play condition”.

  On the other hand, if the music information of the music to be reproduced is not stored in the CD changer 20 or the MD changer 30 when the reproduction operation according to the “trick play condition” is started, the media insertion notification unit 14d performs the reproduction. A notification is made to prompt the user to insert a medium storing the music information of the target music. At this time, “album name”, “artist name”, “genre”, and the like of the medium are displayed on the touch panel 11 as a notification for prompting insertion of the medium.

  After that, when a medium storing music information of the music to be played back is inserted, the music information of the music to be played back is played by a playback operation according to the “trick play condition”.

  In addition, when the medium storing the music information of the music to be played back is not inserted, the input of “skip” for skipping the music to be played and playing the music to be played next is accepted.

  Then, when the input of “skip” is accepted, if the “trick play condition” is not “Repeat” and the reproduction is completed for all the tracks registered in the “reproduction song list”, the reproduction of the music is terminated. .

  Thus, when performing a predetermined trick play on the song list of each medium, if the music information of the song to be played is not stored in the holding media of the in-vehicle audio device, the song to be played By notifying that the media in which the music information is stored is required, it is possible to notify the owned media on which the desired music is recorded even if the music desired by the user is not recorded on the holding media. ing.

  Also, when performing a predetermined trick play on the music list of each medium, if the music information of the music to be played is not stored in the holding media of the in-vehicle audio device, the music to be played is ignored. Then, by reproducing the music information of the music to be reproduced, the music can be reproduced continuously between the music without performing operations such as inserting or replacing media.

(Processing procedures)
Next, procedures of various processes performed by the in-vehicle audio apparatus according to the first embodiment will be described. Here, the music list of the media is written in the music list storage table 13a. (1) After describing the music list writing control process, a “reproduced music list” is created. (2) The reproduced music list creation process is explained. Finally, a predetermined trick play is performed on this “reproduced music list” to reproduce music (3) Music reproduction processing will be described.

(1) Music List Writing Control Process FIG. 3 is a flowchart showing the procedure of the music list writing control process. As shown in the figure, the music list writing control unit 14a inserts “CD” into the CD insertion slot 21 by the user and stores the inserted “CD” in the CD storage unit CD-2 ( In step S301, a “music list read instruction” is transmitted to the CD changer control unit 23, and the music list and attribute information related to the music list are read from the inserted “CD” (step S302).

  If the information of “CD” is not written in the music list storage table 13a (No at Step S303), the music list “No” is assigned to the inserted “CD”, and the TOC information, the album is recorded. Name, song list of the song recorded on the media, and attribute information related to the song list such as artist name and genre “Jazz”, and the number of the CD storage section of the inserted “CD” (ie, disc number) “CD-2” is written in the music list storage table 13a (step S304).

  When the information of “CD” has already been written in the music list storage table 13a (that is, “Album 1,” “Album 2,” “Album 3,” etc., the music list has already been written. When the medium is inserted (Yes at step S303), the CD storage unit No (ie, disc No) “CD-2” of the inserted “CD” is added to the song list “No” of the “CD”. The music list storage table 13a is updated by writing (step S305).

  In this way, the in-vehicle audio device 10 writes the music list of the medium in the music list storage table 13a each time a new medium is inserted into the CD changer 20 or the MD changer 30, so Accumulate the list.

(2) Reproduction Music List Creation Processing FIG. 6 is a flowchart showing the procedure of reproduction music list creation processing. This “reproduced music list creation process” is started when a trick play instruction for the “music list” is received.

  As shown in the figure, when a trick play instruction for the “music list” is received (step S601), the touch panel 11 displays selection condition setting screens 210 and 220 as shown in FIGS. 4-1 and 4-2. Is displayed and an input of “reproduction target selection condition” is accepted (step S602).

  When a condition related to an album or a single is received as the “reproduction target selection condition” (that is, when “title” is pressed on the selection condition setting screen 210) (Yes in step S603), a reproduction music list creation unit 14b extracts the track information of the designated album or the designated single from the song list storage table 13a to create a “reproduced song list” (step S604).

  Further, when a condition related to an artist is accepted as the “reproduction target selection condition” (that is, when “artist” is pressed on the selection condition setting screen 210) (No in step S603 and affirmative in step S605), the reproduction music list The creation unit 14b extracts the track information of the designated artist from the music list storage table 13a and creates a “reproduced music list” (step S606).

  In addition, when a genre-related condition is received as the “reproduction target selection condition” (that is, when “genre” is pressed on the selection condition setting screen 210) (No in step S603, negative in step S605 and positive in step S607). As shown in FIG. 5, the reproduction music list creation unit 14b stores track information of a specified genre (for example, “Pops”) received on the selection condition setting screen 220 in conjunction with the selection condition setting screen 210. The “reproduced music list” is created by extracting from the table 13a (step S608).

  Further, when any of the narrowing conditions is not accepted as the “reproduction target selection condition” (that is, when “all play” is pressed on the selection condition setting screen 210) (No in Step S603, No in Step S605, and Step (No in S607), the reproduction music list creation unit 14b extracts the entire music list stored in the music list storage table 13a as a “reproduction music list” (step S609).

  In this manner, the in-vehicle audio apparatus 10 extracts a music list that satisfies the reproduction target selection condition accepted by the touch panel 11 from the music list of each medium, and creates a “reproduced music list”.

(3) Music Playback Process FIG. 7 is a flowchart showing the procedure of the music playback process. This “music reproduction process” is started when the creation of the “reproduction song list” by the reproduction song list creation unit 14b is completed. When the creation of the “reproduction song list” by the reproduction song list creation unit 14b is completed, the touch panel 11 accepts input of trick play conditions (for example, designation of “Repeat”, “Random”, “Scan”, etc.).

  As shown in the figure, when the creation of the “reproduction song list” by the reproduction song list creation unit 14b is completed (Yes in step S701), the touch panel 11 displays a trick play condition (for example, “Repeat”, “Random” or The input of “Scan” or the like is accepted (step S702).

  When “Repeat” is accepted as a trick play condition (Yes at Step S703), the music playback unit 14c sequentially performs repeated playback of tracks registered in the “playback music list” (Step S704). For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are recursively sequentially reproduced.

  When “Random” is accepted as the trick play condition (No at Step S703 and Yes at Step S705), the music playback unit 14c sequentially executes random playback for the tracks registered in the “playback music list” (Step S703). S706). For example, in the case of the “reproduced music list” shown in FIG. 5, the music to be reproduced is randomly selected from “Track 21” to “Track 33” using a table in which a random number sequence is stored. Select and play sequentially.

  When “Scan” is accepted as the trick play condition (No at Step S703, No at Step S705 and Yes at Step S707), the music playback unit 14c performs a predetermined time for each track registered in the “playback song list”. Sequential reproduction is executed (step S708). For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are sequentially reproduced every 10 seconds.

  If the trick play condition is not accepted (No at Step S703, No at Step S705 and No at Step S707), the music playback unit 14c sequentially performs normal playback for the tracks registered in the “playback music list” ( Step S709). For example, referring to the “reproduced music list” shown in FIG. 5, “Track 21” to “Track 33” are sequentially reproduced.

  Subsequently, when the music playback unit 14c starts the playback operation according to these “trick play conditions”, if the music information of the music to be played back is stored in the CD changer 20 or the MD changer 30 ( In step S710, the music information of the music to be reproduced is reproduced by the reproduction operation according to the “trick play condition” (step S711).

  On the other hand, if the music information of the music to be played back is not stored in the CD changer 20 or the MD changer 30 when the playback operation corresponding to the “trick play condition” is started (No in step S710), the media insertion notification The unit 14d makes a notification for prompting the insertion of the medium storing the music information of the music to be played back (step S712).

  After that, if a medium storing music information of the music to be played back is inserted (Yes in step S713), the music information of the music to be played is played back by the playback operation according to the “trick play condition” ( Step S711).

  If the media storing the music information of the music to be played is not inserted (No at step S713), the input of “skip” for skipping the music to be played and playing the next music to be played Is received (step S714).

  When this “skip” input is accepted (step S714 affirmative) or after the reproduction of the music to be reproduced (step S711) is completed, the “trick play condition” is “Repeat” (step S715 affirmative). The processing from step S704 to S714 is performed recursively.

  In addition, when this “skip” input is accepted (step S714 affirmative) or after the reproduction of the music to be played back (step S711) is completed, the “trick play condition” is not “Repeat” (No in step S715). If the reproduction of all the tracks registered in the “reproduced music list” has not been completed (No at Step S716), the processing from Steps S703 to S714 is performed again.

  Finally, when the input of “skip” is accepted (Yes at step S714) or after the reproduction of the music to be played back (step S711), the “trick play condition” is not “Repeat” (No at step S715). When the reproduction of all the tracks registered in the “reproduction music list” has been completed (Yes at step S716), the reproduction of the music is terminated.

  As described above, according to the in-vehicle audio apparatus according to the first embodiment, the “music list” includes more music desired by the user, and further, the user desires “ The “reproduced music list” can be extracted, and the reproduction forms for the “reproduced music list” across the same type of media and different media can be diversified, and the usability of providing music can be improved more effectively.

  Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments in addition to the above-described first embodiment within the scope of the technical idea described in the claims. It may be.

  For example, in the first embodiment, the embodiment in the case where the present invention is applied to the in-vehicle audio apparatus 10 capable of reproducing “CD” and “MD” has been described, but the present invention is not limited to this. When media such as “MP3” and “WMA” can be further reproduced, and the media that can be reproduced is a combination of these media “CD”, “MD”, “MP3”, and “WMA”. However, the same can be applied.

  In the present invention, the music list extraction process for extracting the music list that satisfies the reproduction target selection condition may be performed even when the media held by the in-vehicle audio device 10 is exchanged. For example, when a playback target selection condition for selecting a music piece whose genre is “Pops” as a playback target is received, even if media is inserted or removed, a process of creating a “playback music list” is performed at that time. Update the “Playback Music List” at any time. In other words, this makes it possible to constantly play back the music desired by the user even when the media is exchanged.

  Further, in the present invention, a music list that satisfies the playback target selection condition is extracted from the music list stored in the holding medium of the in-vehicle audio device 10, and a predetermined trick play is performed on the extracted music list. Music may be played back. In other words, it is possible to play back only the music recorded on the holding media, avoid the situation where the music information of the music to be played back is not stored, and to newly insert or replace media It is possible to reproduce the music desired by the user without performing the operation.

  In addition, among the processes described in this embodiment, all or part of the processes described as being performed automatically can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method. In addition, the processing procedure, control procedure, specific name, and information including various data and parameters shown in the above-mentioned document and drawings can be arbitrarily changed unless otherwise specified.

  Further, each component of each illustrated apparatus is functionally conceptual, and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. Further, all or any part of each processing function performed in each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

1 is a block diagram illustrating a configuration of an in-vehicle audio apparatus according to a first embodiment. It is a figure which shows the structural example of the information memorize | stored in a music list storage table. It is a flowchart which shows the procedure of a music list write control process. It is a figure which shows an example of a selection condition setting screen. It is a figure which shows an example of a selection condition setting screen. It is an example of a reproduction music list. It is a flowchart which shows the procedure of a reproduction | regeneration music list creation process. It is a flowchart which shows the procedure of a music reproduction process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Car audio system 11 Touch panel 11a Input part 11b Display part 12 Speaker 13 Storage part 13a Music list storage table 14 Control part 14a Music list writing control part 14b Playing music list creation part 14c Music reproduction part 14d Media insertion notification part 20 CD changer 30 MD changer

Claims (7)

A music playback device for reading music information from media and playing music,
Music list writing means for writing the music list of the media to the music list storage means each time a new medium is held in the music playback device;
Music playback means for playing music by performing a predetermined trick play on the music list of each medium written in the music list storage means;
A music playback device comprising: The music playback device reads music information from a plurality of different media and plays back music,
The music list writing means writes the music list of the different media into the music list storage means,
2. The music reproducing apparatus according to claim 1, wherein the music reproducing means reproduces music by performing a predetermined trick play on a music list of a plurality of different media written in the music list storage means. .   When performing a predetermined trick play on the music list of each medium written in the music list storage means, if the music information of the music to be played is not stored in the holding media of the music playback device, 3. The music playback apparatus according to claim 1, further comprising media request notification means for notifying that a medium storing music information of a music to be played back is required.   When the music playback means performs a predetermined trick play on the music list of each medium written in the music list storage means, the music information of the music to be played is stored in the holding medium of the music playback device 4. The music reproducing apparatus according to claim 1, wherein the music information of the music to be reproduced is reproduced while ignoring the music to be reproduced, if not. As a condition for selecting a music to be played from the music list, further comprising a playback target selection condition receiving means for receiving a condition related to the attribute information of the music
The music list writing means writes the attribute information related to the music list together with the music list of the media,
The music playback means is a playback target received by the playback target selection condition receiving means from the music list of each medium based on the attribute information related to the music list of each media written in the music list storage means. 5. A music playback apparatus according to claim 1, wherein a music list satisfying the selection condition is extracted, and music is played by performing a predetermined trick play on the extracted music list. .   The music reproduction means performs music list extraction processing for extracting a music list that satisfies the reproduction target selection condition even when a medium held by the music reproduction device is exchanged. Music playback device.   The music playback means extracts a music list that satisfies the playback target selection condition received by the playback target selection condition receiving means from the music list stored in the holding medium of the music playback device, and the extracted music list 7. The music reproducing apparatus according to claim 5, wherein a predetermined trick play is performed on the music to reproduce the music.

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