JP2007257712A - Content selecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content selecting device which selects acoustic contents so that flow between the acoustic contents to be reproduced by an acoustic reproducing apparatus does not give the feeling of incompatibility to a listener. <P>SOLUTION: A CPU randomly selects one piece of the acoustic contents from the acoustic contents stored in an acoustic content storage part (S21), retrieves music related contents having attribute information related to the attribute information of the selected music contents from the acoustic contents stored in the acoustic content storage part (S22), selects the music contents again (S21) when the music related contents are not detected (S23), and registers the music contents selected in the step S21 and the music related contents detected in the step S22 in a reproduction list (S24) when the music related contents are detected (S23). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a content selection device that selects an audio content to be reproduced by an audio reproduction device from a storage medium in which the audio content is stored.

As a conventional content selection device, music information having attribute information and acoustic content of word information are stored in a storage medium, music information corresponding to the attribute information of the own vehicle, and words corresponding to the attribute information of the own vehicle There is a program that reproduces comfortable program information according to the state of the host vehicle by reproducing information by composing program information by alternately combining information (see, for example, Patent Document 1).
JP 2001-67850 A

  However, in the conventional content selection device, since the audio content constituting the program information is appropriately selected according to the state of the own vehicle, the flow between the audio content to be reproduced by the audio reproduction device gives the listener a sense of incongruity. There was a problem such as.

  The present invention has been made to solve the conventional problems, and provides a content selection device capable of selecting audio content so that the flow between the audio content to be reproduced by the audio reproduction device does not give the listener a sense of incongruity. The purpose is to do.

  The content selection device of the present invention is a content selection device comprising content selection means for selecting an audio content to be played back by the sound playback device from a storage medium in which the sound content having attribute information is stored. The audio content having attribute information related to the attribute information of the audio content is selected next.

  With this configuration, the content selection device according to the present invention sequentially selects the audio content related to the attribute information, and therefore the audio content is selected so that the flow between the audio content to be reproduced by the audio reproduction device does not give the listener a sense of incongruity. be able to.

  Note that the content selection device of the present invention includes operation history storage means for storing operation history information representing the operation history of the sound reproduction device, and the content selection means allows the user to play music based on the operation history information. If the user determines that he / she likes music, he / she selects the audio content that is determined to represent music based on the attribute information, and the user likes music. If it is determined that there is no audio content, the audio content determined to represent a sound other than music based on the attribute information may be selected.

  With this configuration, the content selection device of the present invention can sequentially select the acoustic content that matches the listener's preference.

  In addition, the content selection means represents the sound associated with the selected acoustic content when it is determined that the acoustic content represents music based on the attribute information of the selected acoustic content. The audio content determined based on the attribute information may be selected next.

  With this configuration, the content selection device of the present invention can select the audio content so that the flow between the audio contents does not give the listener a sense of incongruity, such as a program mainly composed of music.

  The content selection means is configured to cause the sound playback apparatus to play back the sound content determined to represent at least one of news, weather information, and road traffic information based on the attribute information at regular intervals. May be selected.

  With this configuration, the content selection device of the present invention can select the audio content so that the flow between the audio content does not give the listener a sense of incongruity, as in a radio broadcast or television broadcast program.

  The present invention can provide a content selection device having an effect that it is possible to select an acoustic content so that the flow between the acoustic contents to be reproduced by the acoustic reproduction device does not give the listener a sense of incongruity.

  Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, an example in which the content selection device of the present invention is applied to an in-vehicle sound reproduction device will be described.

  FIG. 1 shows a sound reproducing apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the sound reproducing apparatus 1 includes an I / O port 11 for inputting / outputting data, and a hard disk drive (hereinafter simply referred to as “HDD”) 12 for storing various data and programs. A ROM (Read Only Memory) 13 that stores basic programs such as BIOS (Basic Input / Output System), a CPU (Central Processing Unit) 14 that executes programs stored in the HDD 12 and the ROM 13, and the CPU 14. RAM (Random Access Memory) 15 for storing programs and data, audio LSI (Large Scale Integration) 16 for processing audio content, drawing LSI 17 for processing image data representing images, and VRAM (Image RAM for storing image data) Video RAM) 18.

  The CPU 14 reads the programs stored in the ROM 13 and the HDD 12 into the RAM 15 and executes the programs read into the RAM 15 to control each unit by executing each operation of the sound reproducing device 1 described later. ing. In the following description, the CPU 14 executing the program stored in the ROM 13 and the HDD 12 is simply referred to as “CPU 14”. In the present embodiment, the CPU 14 constitutes content selection means in the present invention.

  The I / O port 11 includes a GPS receiver 21 that receives GPS (Global Positioning System) data, a VICS receiver 22 that receives VICS (Vehicle Information and Communication System) data, and a speed sensor that detects the speed of the vehicle. 23, a gyro sensor 24 that detects the direction in which the vehicle is facing, at least one acoustic output device 25 that outputs acoustic content, at least one acoustic reception device 26 that receives acoustic content, and sound represented by the acoustic content Are connected, a display 32 for displaying an image represented by the image data, and an input device 33 such as a touch panel provided integrally with the display 32.

  The sound output device 25 includes a portable audio player, a portable digital audio player, a notebook PC (Personal Computer), a DVD (Digital Versatile Disc), a CD (Compact Disc), an MD (Mini Disc), and an SD (Secure Digital) memory card. And a media driver such as a USB (Universal Serial Bus) memory. The acoustic receiving device 26 includes an FM (Frequency Modulation) tuner and an AM (Amplitude Modulation) tuner.

  The HDD 12, the sound output device 25, and the media held in the sound output device 25 (hereinafter collectively referred to as “sound content storage unit”) store a plurality of sound contents. As the format of the audio content, there are MP3 (MPEG-1 Audio Layer 3), WAVE, AAC (Advanced Audio Coding) and the like.

  Each acoustic content has attribute information. The attribute information may be included in the sound content itself like an MP3 tag, or may be stored in the sound content storage unit together with the sound content as a file different from the sound content.

  The attribute information of the acoustic content representing music represents items such as artist name, album name, music genre, song name, composer name, and playback time. Further, the attribute information of the audio content other than that representing music represents items such as a program genre, a program name, a performer name, a reproduction time, and an outline of program contents.

  This embodiment will be described by classifying acoustic content into five types: music content, audio content, news content, music-related content, and non-music-related content. In addition, the types of the sound contents are determined by the CPU 14 based on the attribute information.

  Here, the music content represents music, and the audio content is content representing audio obtained from an audio book, a radio broadcast, a television broadcast, or the like. In addition, the news content represents sound such as news, weather information, and road traffic information that is broadcast between programs by radio broadcasting or television broadcasting.

  The music-related content represents sound related to music such as a talk by a disc jockey that introduces music, a talk by an artist, and an introduction of music ranking. On the other hand, the non-music related content represents speech not related to music such as a talk by a jockey not related to music, advertisement, and a phrase having a playback time of several seconds.

  The sound content playback operation of the sound playback device 1 configured as described above will be described with reference to FIGS.

  The playback operation of the audio content by the audio playback device 1 includes a normal playback operation for playing back the audio content according to the designation via the input device 33 and the like, and a list playback operation for playing back the audio content according to the playback list generated by the CPU 14. There is.

  FIG. 2 is a flowchart for explaining the normal playback operation of the sound playback device 1.

  First, when the storage destination of the audio content or the reception channel of the audio content is specified via the input device 33, the CPU 14 specifies the audio content or the audio receiving device 26 at the specified storage destination of the audio content storage unit. The audio content received by the reception channel is processed by the audio LSI 16 and output as sound through the speaker 31 (S1).

  Here, the CPU 14 stores operation history information representing the history of the designated operation via the input device 33 in the HDD 12 (S2). As illustrated in FIG. 3, the operation history information includes information indicating a target device for a specified operation, the number of times of a specified operation for specifying the device, and a playback time for reproducing the audio content from the device.

  Note that, in the operation process of the input device 33, each device may be activated without the intention of the user. Therefore, the CPU 14 is, for example, when 5 minutes or more have passed since the device to be operated is specified. It is preferable to update the designated operation count and playback time of the device.

  FIG. 4 is a flowchart for explaining the list reproduction operation of the sound reproduction apparatus 1.

  When the list reproduction is instructed via the input device 33, the CPU 14 refers to the operation history information stored in the HDD 12, and the total number of designated operations in the acoustic content storage unit is the number of designated manipulations in the acoustic receiving device 26. It is determined whether or not the user likes music by determining whether or not the total is over (S11).

  That is, the CPU 14 determines that the user prefers music when the cumulative number of designated operations in the acoustic content storage unit is equal to or greater than the cumulative number of designated operations in the acoustic receiving device 26, and the designated operation in the acoustic content storage unit. If the total number of times is not equal to or greater than the total number of specified operations of the sound receiving device 26, it is determined that the user prefers a sound other than music.

  The CPU 14 determines that the playback time of the acoustic content storage unit is equal to or longer than the playback time of the acoustic reception device 26 when the total number of specified operations of the acoustic content storage unit is equal to the total number of specified operations of the acoustic reception device 26. By determining whether or not there is, it may be determined whether or not the user likes music.

  When it is determined that the user likes music, the CPU 14 executes a music reproduction list generation process for generating a reproduction list mainly composed of music contents (S12, FIG. 5). On the other hand, when it is determined that the user does not like music, the CPU 14 executes an audio reproduction list generation process for generating a reproduction list mainly composed of audio contents (S13, FIG. 6).

  When the generation of the play list is completed, the CPU 14 causes the audio LSI 16 to process the sound content stored in the sound content storage unit according to the play list and output it as sound through the speaker 31 (S14).

  FIG. 5 is a flowchart for explaining in detail the music reproduction list generation processing executed by the CPU 14.

  First, the CPU 14 selects a genre of music content (S20). Here, the CPU 14 may select a genre designated via the input device 33, may randomly select a genre, or may select a genre registered in advance in the HDD 12.

  Next, the CPU 14 randomly selects music content having attribute information representing the selected genre from the acoustic content stored in the acoustic content storage unit (S21).

  Next, the CPU 14 searches the audio content stored in the audio content storage unit for music related content having attribute information related to the attribute information of the selected music content (S22). Here, the CPU 14 uses at least one item (for example, artist name) represented by the attribute information of the selected music content as a keyword, and at least one item represented by the attribute information included in the music-related content stored in the acoustic content storage unit. The keyword is searched from (for example, performer name).

  When the music related content is not detected (S23), the CPU 14 reselects the music content (S21). On the other hand, when music related content is detected (S23), the CPU 14 registers the music content selected in step S21 and the music related content detected in step S22 in the reproduction list (S24).

  Next, the CPU 14 executes a news content registration process for appropriately registering the news content in the reproduction list (S25, FIG. 7).

  Next, the CPU 14 calculates the reproduction time of the reproduction list by adding the reproduction time of each content registered in steps S24 and S25 to the reproduction time of the reproduction list (S26).

  Here, the CPU 14 determines whether or not the reproduction time of the reproduction list is equal to or longer than a predetermined time set in advance (S27), and if it is determined that the reproduction time of the reproduction list is equal to or longer than the predetermined time, The play list generation process is terminated.

  On the other hand, when determining that the reproduction time of the reproduction list is not equal to or longer than the specified time, the CPU 14 selects the next music content (S21).

  FIG. 6 is a flowchart for explaining in detail the audio playlist creation processing executed by the CPU 14.

  First, the CPU 14 randomly selects audio content from the audio content stored in the audio content storage unit (S30).

  Next, the CPU 14 searches for non-music related content having attribute information related to the attribute information of the selected audio content from the audio content stored in the audio content storage unit (S31). Here, the CPU 14 uses at least one item (for example, name of performer) represented by the attribute information of the selected audio content as a keyword, and at least 1 represented by the attribute information included in the non-music related content stored in the acoustic content storage unit. The keyword is searched from two items (for example, performer name).

  When the non-music related content is not detected (S32), the CPU 14 reselects the audio content (S30). On the other hand, if non-music related content is detected (S32), the CPU 14 registers the audio content selected in step S30 and the non-music related content detected in step S31 in the playlist (S33), and news. A content registration procedure is executed (S34, FIG. 7).

  Next, the CPU 14 calculates the reproduction time of the reproduction list by adding the reproduction time of each content registered in steps S33 and S34 to the reproduction time of the reproduction list (S35).

  Here, the CPU 14 determines whether or not the reproduction time of the reproduction list is equal to or longer than the specified time (S36). The process ends.

  On the other hand, when determining that the reproduction time of the reproduction list is not equal to or longer than the specified time, the CPU 14 selects the next audio content (S30).

  FIG. 7 is a flowchart for explaining in detail the news content registration process executed by the CPU 14.

  First, the CPU 14 calculates the sum of the reproduction time of the news content registered in the reproduction list last time and the sound content registered in the reproduction list since the news content was registered (S40).

  Next, the CPU 14 determines whether or not the calculated sum of the reproduction times is equal to or longer than a certain time (S41). In the present embodiment, the fixed time is 1 hour.

  When determining that the total playback time is not equal to or greater than the predetermined time, the CPU 14 ends the news content registration process. On the other hand, if it is determined that the total playback time is equal to or longer than the predetermined time, the CPU 14 randomly selects the news content from the acoustic content stored in the acoustic content storage unit (S42), and selects it. The news content is registered in the reproduction list (S43).

  Note that when selecting the news content, the CPU 14 may select the news content with the old information excluded. For example, if the elapsed time from the update date / time of the news content to the current date / time that can be acquired from the GPS receiver 21 exceeds 3 hours, the CPU 14 excludes the news content.

  In the music playlist generation process, the voice playlist generation process, and the news content registration process described above, the CPU 14 has already selected and searched the acoustic content so that the same acoustic content is not registered in the playlist. It is desirable to exclude the audio content registered in the playlist.

  In addition, in the music playlist generation process, the voice playlist generation process, and the news content registration process, playback is performed according to the playlist so that the same acoustic content as that registered in the recently played playlist is not registered. A played list as shown in FIG. 8 for registering the audio content is stored in the HDD 12, and the CPU 14 excludes the audio content registered in the played list when selecting and searching the audio content. You may do it.

  In this case, prior to the list playback operation, the CPU 14 executes a playback list update process. In the update processing of the played list, the CPU 14 deletes the registration of the sound content when the elapsed time from the play date and time of each sound content registered in the played list to the current date exceeds, for example, one week. To do.

  Since the sound reproducing apparatus 1 according to the embodiment of the present invention sequentially selects the sound contents related to the attribute information, the sound contents are selected so that the flow between the sound contents to be played does not give the listener a sense of incongruity. can do.

  In the present embodiment, an example has been described in which the CPU 14 generates a playback list and plays back the audio content according to the generated playback list. However, the CPU 14 selects the audio content without generating the playback list. However, it may be played back sequentially.

  As described above, the content selection device according to the present invention has an effect that the audio content can be selected so that the flow between the audio content to be reproduced by the audio reproduction device does not give the listener a sense of incongruity. The present invention is useful as a content selection device or the like that selects audio content to be reproduced by an audio reproduction device from a storage medium in which audio content is stored.

The block diagram of the sound reproduction apparatus in one embodiment of this invention The flowchart for demonstrating normal reproduction | regeneration operation | movement of the sound reproduction apparatus in one embodiment of this invention A table for explaining operation history information stored in the HDD constituting the sound reproducing device according to the embodiment of the present invention. The flowchart for demonstrating the list | wrist reproduction | regeneration operation | movement of the sound reproduction apparatus in one embodiment of this invention The flowchart for demonstrating the play list production | generation process for music performed by CPU which comprises the sound reproduction apparatus in one embodiment of this invention. The flowchart for demonstrating the audio | voice reproduction | regeneration list production | generation process performed by CPU which comprises the sound reproduction apparatus in one embodiment of this invention. The flowchart for demonstrating the news content registration process performed by CPU which comprises the sound reproduction apparatus in one embodiment of this invention. A table for explaining a played list stored in the HDD constituting the sound playback device according to the embodiment of the present invention.

Explanation of symbols

1 Sound reproduction device 11 I / O port 12 HDD
13 ROM
14 CPU
15 RAM
16 Voice LSI
17 Drawing LSI
18 VRAM
21 GPS receiver 22 VICS receiver 23 Speed sensor 24 Gyro sensor 25 Sound output device 26 Sound reception device 31 Speaker 32 Display 33 Input device

Claims (4)

In a content selection device comprising content selection means for selecting an audio content to be reproduced by an audio reproduction device from a storage medium in which the audio content having attribute information is stored,
The content selection device, wherein the content selection unit next selects an audio content having attribute information related to the attribute information of the selected audio content. An operation history storage means for storing operation history information representing an operation history of the sound reproducing device;
The content selection means determines whether or not the user likes music based on the operation history information, and represents the music based on the attribute information when it is determined that the user likes music. When the acoustic content determined to be present is selected and the user determines that he does not like music, the acoustic content determined to represent sound other than music is selected based on the attribute information. The content selection device according to claim 1. If the content selection unit determines that the sound content represents music based on the attribute information of the selected sound content, the content selection means represents the sound associated with the selected sound content. The content selection apparatus according to claim 1, wherein the audio content determined based on the content is selected next. The content selection means is configured to cause the sound playback apparatus to play back the sound content determined to represent at least one of news, weather information, and road traffic information based on the attribute information at regular intervals. 4. The content selection device according to claim 1, wherein the content selection device is selected.

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