WO2014162558A1

WO2014162558A1 - Electronic device, method for controlling electronic device, and program

Info

Publication number: WO2014162558A1
Application number: PCT/JP2013/060330
Authority: WO
Inventors: 隆典原田
Original assignee: パイオニア株式会社
Priority date: 2013-04-04
Filing date: 2013-04-04
Publication date: 2014-10-09

Abstract

An electronic device (100) is provided with the following: a navigation means (105) that finds a route to a specified destination and computes the amount of time the found route will take; a base-content determination means (120) that determines at least one piece of base content to play at a given point along the found route; a selection-conditions setting means (130) that sets content information for the base content as the basis for selection conditions for selecting content other than the base content; and a content-set selection means (140) that, on the basis of said selection conditions and the amount of time the found route will take, selects a set of content to play on said route.

Description

Electronic device apparatus, electronic device apparatus control method, and program

The present invention relates to an electronic device device that selects content corresponding to a route searched by a navigation function, a method for controlling the electronic device device, and a technical field of a program.

As this type of device, for example, a navigation system used in a vehicle or the like is associated with an audio system, and when a vehicle reaches a certain point, a device that reproduces music associated with that point is known. (For example, see Patent Documents 1 to 4). According to such an apparatus, music is automatically played in accordance with the movement of the vehicle, so that music can be played at a suitable timing.

JP-A-2005-37142 JP 2006-266807 A Japanese Patent Laid-Open No. 11-30526 JP 2001-354071 A

However, in the techniques as described in Patent Documents 1 to 4 described above, the music to be played is automatically determined, so the music desired by the user may not be played appropriately. Specifically, since the music to be played is automatically determined according to preset conditions (for example, required time), the user has no choice and the music he wants to listen to is not played. Or the situation where the music which I do not want to hear will be reproduced | regenerated may arise. In addition, when an unexpected situation such as running off a registered point occurs, it becomes difficult to normally reproduce the music.

The present invention has been made in view of, for example, the above-described problems. An electronic device device and an electronic device device that can suitably select a musical piece desired by a user according to a route searched by a navigation function. It is an object to provide a control method and a program.

In order to solve the above problems, an electronic device according to the present invention performs a route search to a designated arrival point, and calculates a required time for a route searched by the route search, and at least one Reference content determination means for determining content as reference content to be reproduced at one point on the route searched by the route search, and criteria for selection conditions for selecting content other than the reference content as content information of the reference content Selection condition setting means for setting a content group, and content group selection means for selecting a content group to be reproduced on the route based on the selection condition and the required time.

In order to solve the above-described problem, the electronic device apparatus control method of the present invention performs a route search to a designated arrival point, and calculates a required time of the route searched by the route search; A reference content determination step for determining at least one content as a reference content to be reproduced at one point on the route searched by the route search, and a selection for selecting content other than the reference content as content information of the reference content A selection condition setting step that is set as a condition reference; and a content group selection step that selects a content group to be reproduced on the route based on the selection condition and the required time.

In order to solve the above-described problem, the program of the present invention executes a route search to a designated arrival point and calculates a time required for the route searched by the route search, and at least one navigation means. Reference content determining means for determining one content as reference content to be reproduced at one point on the route searched by the route search, and content information of the reference content as a selection condition for selecting content other than the reference content A selection condition setting unit that is set as a reference, and a content group selection unit that selects a content group to be reproduced on the route based on the selection condition and the required time.

The operation and gain of the present invention will be clarified from embodiments for carrying out the invention described below.

It is a block diagram which shows the whole structure of the electronic device apparatus which concerns on an Example. It is a top view which shows the example of a display in the display part of the electronic device apparatus which concerns on an Example. It is a flowchart which shows operation | movement of the electronic device apparatus which concerns on an Example. It is a conceptual diagram which shows the selection method of a reference | standard music. It is a graph (the 1) which shows the correlation coefficient for extracting the content group reproduced | regenerated between reference | standard music. It is a table | surface (the 1) which shows the correlation coefficient for extracting the content group reproduced | regenerated between reference | standard music. It is a conceptual diagram (the 1) which shows the extraction method of a content group in case BPM is set conditions. It is a graph (the 2) which shows the correlation coefficient for extracting the content group reproduced | regenerated between reference | standard music. It is a table | surface (the 2) which shows the correlation coefficient for extracting the content group reproduced | regenerated between reference | standard music. It is a conceptual diagram (the 2) which shows the extraction method of a content group in case BPM is set conditions. It is a flowchart which shows the extraction process of the content group in the electronic device apparatus which concerns on an Example. It is a top view which shows the example of a display of the play list in a display part. It is a conceptual diagram which shows the selection method of the playlist using a display part. It is a conceptual diagram which shows operation in the case of quickening the reproduction | regeneration position of the music contained in a play list. It is a conceptual diagram which shows operation in the case of delaying the reproduction | regeneration position of the music contained in a play list. It is a top view which shows an example in case required time is extended. It is a conceptual diagram which shows re-creation of a playlist when required time is extended. It is a top view which shows an example when it has deviated from a route. It is a conceptual diagram which shows re-creation of a play list when it deviates from a route. It is a top view which shows the example of a display of the play list at the time of a train movement. It is a top view which shows the example of a display in a play list area.

The electronic device according to the present embodiment performs a route search to a designated destination, and also includes navigation means for calculating a required time of the route searched by the route search, and at least one content as the route. Reference content determination means for determining as reference content to be reproduced at one point on the route searched by the search, and a selection condition for setting the content information of the reference content as a criterion for selecting a content other than the reference content Setting means; and content group selection means for selecting a content group to be reproduced on the route based on the selection condition and the required time.

In the operation of the electronic device according to the present embodiment, a route search to a designated arrival point is first executed by the navigation means. Note that the current point is typically set as the starting point of the route, but other points can also be set. Further, there may be a plurality of routes searched by the route search.

Subsequently, the navigation means calculates the time required for the searched route. The required time is calculated according to, for example, the type of moving means to the arrival point. Specifically, the required time is calculated using various road information when traveling by vehicle, and using time information when traveling by train. In addition, when moving on foot, the required time may be calculated based on a predetermined moving speed. When a plurality of routes are searched, the required time is calculated for each of the plurality of routes.

When the required time of the searched route is calculated, the reference content determining means determines at least one content as the reference content to be reproduced at one point on the searched route. Here, “content” refers to data that can be sequentially reproduced when moving on the searched route, and includes, for example, audio data such as music and video data. Note that the content that can be selected here is not limited to content held by the user, but may be content that can be reproduced in the future, such as content that can be purchased. When determining the reference content, for example, the user uses the input means such as a touch panel, a mouse, and a keyboard to select content to be reproduced at one point on the route from among a large number of content stored in a database or the like. . That is, the user selects content to be used as the reference content from a plurality of selectable contents, and also selects one point for reproducing the reference content from the searched route. The reference content may not be selected by the user (for example, may be automatically selected by the device). It is sufficient to select one reference content, but a plurality of reference contents may be selected. That is, the reference content may be set for a plurality of points on the route.

When the reference content is set, the selection condition setting means sets the content information of the reference content as a reference for selection conditions for selecting content other than the reference content. Here, “content information” is information for determining the degree of commonality and similarity of music, for example, BPM (Beats Per Minute), key, genre, artist name, release date, playback time of music In addition to content-specific information, information set by the user such as a rating and purchase date, or past reproduction information such as the number of times of reproduction and the number of times of connection with a previous song, etc. can be mentioned. When a plurality of pieces of content information are included in the reference content, at least one may be set as a selection condition reference. The content information set as the criterion of the selection condition is preferably a parameter that can be expressed as a numerical value, but any information can be used as long as the content can be compared.

When content information is set as a criterion for selection conditions, a content group to be reproduced on the route is selected by the content group selection means based on the selection condition and the required time. Specifically, the content group is selected such that, for example, the total playback time of the content group and the reference content is close to the required time of the route, and the content information set as the selection condition is similar to the reference content. Content is selected. In addition, when a plurality of pieces of content information are set as selection conditions, the selection may be made by judging the overall similarity to the plurality of pieces of content information, or the degree of similarity is judged separately for each piece of content information. To make a selection. Further, the content information used as a selection condition may be an average value of the entire content or a value of a specific part. Incidentally, the content included in the content group can be only one when the route is short (that is, the required time is short).

Each content included in the reference content and content group described above is associated with a point (in other words, a section) on the searched route. As a result, when moving on the route and aiming for a destination, each content included in the reference content and the content group is sequentially reproduced.

In particular, the content group is selected so that the total playback time including the reference content is close to the required time of the route as described above. For this reason, the reproduction is started in accordance with the start of movement, and the reproduction is completed in accordance with the arrival at the arrival point. That is, suitable content reproduction according to movement on the route is realized.

Also, the content group is selected based on the content information set as the selection condition. For this reason, smooth switching of music can be realized at the time of reproduction of content including reference content. For example, it is possible to reduce the occurrence of a sense of incongruity caused by the content information being switched to a greatly different music piece. In addition, since the selection condition can be set by the user, it is possible to preferably select a content group desired by the user.

As described above, according to the electronic device apparatus according to the present embodiment, it is possible to suitably select the music desired by the user according to the route searched for by the navigation function.

In one aspect of the electronic device apparatus according to the present embodiment, the content group selection unit selects a plurality of content groups.

According to this aspect, since a plurality of content groups are selected, the user can select a content group to be used from the plurality of content groups. In this way, it is possible to suitably reproduce the content according to the route while giving the user room for selection regarding the content group.

Note that the number of content groups to be selected may be set in advance automatically or by an operation of a user or the like, or may be set as appropriate according to various parameters such as the length of a route. The plurality of content groups may be selected as including different numbers of contents.

In another aspect of the electronic apparatus device according to the present embodiment, for each content included in the content group, the stronger the correlation of content information set as a criterion of the selection condition with respect to the reference content, the more the reference content It further includes list setting means for setting the content to be played back at a point close to the point where is played.

According to this aspect, each content included in the content group by the list setting unit has a stronger correlation with the content information set as the criterion of the selection condition for the reference content, and the point where the reference content is reproduced is stronger. Set as content to be played back at a nearby point. For example, among the contents included in the content group, the content having the strongest correlation with the reference content is set as the content to be played back at the point next to the point at which the reference content is played back, and the second correlation with the reference content The content having a strong relationship is set as a content to be reproduced at a point next to a point where the content having the strongest correlation is reproduced.

As described above, if the playback order of each content included in the content group is determined, the switching of the content can be made smoother. For example, each content included in the content group is played back in descending order of the similarity of the content information used as the reference for the selection condition with reference to the reference content. The information is very similar. Therefore, it is possible to effectively reduce the uncomfortable feeling caused by switching the content information to a different music piece.

When a plurality of reference contents are determined, for example, a correlation coefficient related to content information selected as a selection condition for two reference contents is calculated, and a plurality of contents matching the correlation coefficient are between two reference contents. May be selected as a content group that interpolates.

In another aspect of the electronic apparatus device according to the present embodiment, the content information set as the criterion of the selection condition includes at least analysis information obtained by analyzing the content and accompanying information stored accompanying the content. Including one.

According to this aspect, for example, the content group can be selected based on the tempo, beat timing, etc. obtained by analyzing the reference content, so that switching of content can be suitably made uncomfortable. The analysis process for obtaining the analysis information may be executed by the electronic device itself or may be executed outside the device.

In this aspect, for example, the content group can be selected based on the tempo, genre, artist name, song name, or information set by the user included in metadata or the like stored accompanying the reference content. It is possible to make the switching suitably uncomfortable. Further, since the accompanying information stored in advance can be used as it is, the content information can be acquired relatively easily.

It should be noted that if content information is selected using a plurality of types of content information described above, it is possible to realize even smoother content switching.

In another aspect of the electronic apparatus device according to the present embodiment, the navigation means can calculate the required time even while moving on the route searched by the route search, and the content group selection means When the required time changes from the value when the content group is selected, the content group is reselected based on the changed required time.

According to this aspect, the required time is calculated at any time even while moving on the route searched by the route search. In this case, the calculated required time may change due to, for example, an unexpected traffic jam. Here, “change” means a change in accordance with an event that was not assumed when the required time was calculated last time, and excludes a decrease in accordance with the passage of time during movement.

In this aspect, in particular, when the required time changes from the value when the content group is selected as described above, the content group is re-selected based on the changed required time. For this reason, even if the required time changes during movement, the content is reproduced according to the changed required time. In other words, by significantly increasing or decreasing the required time, it is possible to prevent the arrival timing at the arrival point from deviating from the timing at which the reproduction of all the selected contents ends.

From the viewpoint of exerting the above effect, the content group reselection described above is not executed if the change in the required time is a small change that can be performed normally without reselecting the content group. Also good. That is, it may be determined that the required time has changed only when the required time fluctuates more than a predetermined threshold.

In another aspect of the electronic apparatus device according to the present embodiment, when the navigation unit detects that the vehicle is moving off the route searched by the route search, the route search is re-executed and a new one is executed. When the new route is searched, the content group selection means reselects the content group based on the required time of the new route.

According to this aspect, when it is detected that the vehicle has moved off the route searched by the route search, the route search by the navigation means is re-executed and a new route is searched. In this aspect, in particular, when a new route is searched, the content group is reselected based on the time required for the new route.

According to the configuration described above, even when a new route is searched for during movement and the required time changes, the content is reproduced according to the required time of the new route. That is, the required time is significantly increased or decreased by changing the route, so that it is possible to prevent the arrival timing at the arrival point and the timing at which the reproduction of all the selected contents is ended from deviating from each other.

From the viewpoint of exerting the above effect, if the change in the required time due to the path change is a small change that can be normally performed without reselecting the content group, the above-described reselection of the content group is performed. May not be executed.

In another aspect of the electronic apparatus device according to the present embodiment, the navigation unit searches for a plurality of routes that can be selected by the user by the route search, and the content group selection unit includes each of the plurality of routes. The content group is selected for.

According to this aspect, a plurality of routes are searched by route search, and a content group is selected for each of the searched plurality of routes. That is, a different content group is selected for each route. Note that the content group corresponding to each route may include content common to other routes. Further, the reference content may be determined as content corresponding to a point common to each route, or may be determined separately for each route.

When a content group is selected for a plurality of routes, the user selects a route to be used from the plurality of routes. In this way, it is possible to suitably reproduce the content according to the selected route while giving the user room for selection regarding the route. In addition, since the user can select the route after the content is associated with each route, the user can also select the route according to the content to be reproduced.

The method for controlling an electronic device according to the present embodiment performs a route search to a designated arrival point, calculates a time required for the route searched by the route search, and at least one content. A reference content determination step for determining a reference content to be played back at one point on the route searched by the route search, and content information of the reference content is set as a criterion for selecting a content other than the reference content And a content group selection step of selecting a content group to be reproduced on the route based on the selection condition and the required time.

According to the control method of the electronic device apparatus according to the present embodiment, the content group is selected based on the content information of the reference content and the required time of the route, similarly to the electronic apparatus device described above. Therefore, it is possible to suitably select the music desired by the user according to the route searched by the navigation function.

In addition, also in the control method of the electronic device apparatus which concerns on this embodiment, it is possible to take the various aspects similar to the various aspects of the electronic device apparatus mentioned above.

The program according to the present embodiment executes a route search to a designated arrival point, a navigation means for calculating a required time of the route searched by the route search, and at least one content, Reference content determination means for determining as reference content to be played back at one point on the route searched by route search, and selection for setting content information of the reference content as a criterion for selecting a content other than the reference content Based on the condition setting means, the selection condition and the required time, it functions as a content group selection means for selecting a content group to be reproduced on the route.

According to the program according to the present embodiment, the content group is selected based on the content information of the reference content and the required time of the route, as in the electronic device described above. Therefore, it is possible to suitably select the music desired by the user according to the route searched by the navigation function.

Note that the program according to the present embodiment can also adopt various aspects similar to the various aspects of the electronic device described above.

The electronic device apparatus according to the present embodiment, the control method of the electronic apparatus device, the operation of the program, and other gains will be described in more detail in the following examples.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Device configuration>
First, the overall configuration of the electronic device according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating the overall configuration of the electronic device according to the embodiment.

In FIG. 1, the electronic device apparatus 100 according to the present embodiment can create a playlist corresponding to a navigation route by using music data acquired from a music database 200 storing many music. It is configured. Note that the music database 200 is typically configured to store a music group held by the user, but includes music that the user does not have at the present time (for example, music that can be obtained by charging). May be.

The electronic device 100 is connected to a display unit 300 for displaying the created playlist. The display unit 300 also functions as an input unit that inputs a selection operation by the user when creating the playlist to the electronic device apparatus 100.

In particular, the electronic device apparatus 100 according to the present embodiment includes a navigation unit 105, a music data acquisition unit 110, a reference music determination unit 120, a selection condition setting unit 130, a content group extraction unit 140, a playlist creation unit 150, and a playlist determination unit. 160 and a music data output unit 170.

The navigation unit 105 is an example of the “navigation means” according to the present invention. For example, a GPS (Global Positioning System) is used to search for a route from a current value to a specified destination and calculate a required time for the route. It is configured. The route and required time searched by the navigation unit 105 are output and displayed on the display unit 300. In addition, the searched route and required time are also output to the content group extraction unit 140.

The music data acquisition unit 110 is configured to be able to acquire music data from the music database 200. Note that the music data acquired by the music data acquisition unit 110 is data used to create a playlist, and thus does not necessarily have to be data (for example, waveform data) for playing back music. The music data acquired by the music data acquisition unit 110 is output to the display unit 300 and displayed.

The reference song determination unit 120 is an example of the “reference content determination unit” of the present invention, and the display unit 300 determines the song data selected by the user as the reference song. The reference music is an example of the “reference content” in the present invention, and is a music used as a reference when creating a playlist. At the time of creating the playlist, at least one reference song is determined. In addition, a point on the route for reproducing the reference music is also determined. Information regarding the determined reference music is output to the content group extraction unit 140.

The selection condition determination unit 130 is an example of the “selection condition setting unit” of the present invention, and the display unit 300 determines the condition selected by the user as the selection condition. The selection condition is a condition for extracting a content group included in the playlist, and at least one selection condition is determined when the playlist is created. Information regarding the determined selection condition is output to the content group extraction unit 140.

The content group extraction unit 140 is an example of the “content group selection unit” of the present invention, and the content group to be reproduced together with the reference music during the movement of the search route from the music data stored in the music database 200. To extract. The content group is extracted based on the selection condition determined by the selection condition determination unit 130, the route searched by the navigation unit 105, and the required time. Information regarding the extracted content group is output to the playlist creation unit 150. Note that specific processing performed when the content group extraction unit 140 extracts content groups will be described in detail later.

The playlist creation unit 150 is an example of the “list creation unit” of the present invention, and includes a playlist that includes the reference song determined by the reference song determination unit 120 and the content group extracted by the content group extraction unit 140. Create The playlist here is created as corresponding to the route searched by the navigation unit 105. The created playlist is output to the display unit 300 and displayed.

The playlist determination unit 160 determines a playlist corresponding to the route selected by the user among a plurality of routes displayed on the display unit 300 as a playlist to be used for reproduction. Information regarding the playlist determined by the playlist determination unit 160 is output to the music data output unit 170.

The music data output unit 170 outputs the music data to a playback device or the like based on the playlist determined by the playlist determination unit 160. As a result, the reference music piece and the content group included in the playlist are reproduced in the order determined in the playlist.

Next, the display mode in the display unit 300 described above will be specifically described with reference to FIG. FIG. 2 is a plan view illustrating a display example in the display unit of the electronic device according to the embodiment. In addition, the display mode here is only an example, and the display may be performed in a different mode.

In FIG. 2, the display unit 300 according to the present embodiment is configured as a touch panel that allows input by direct touching by the user. However, the display unit 300 may be configured by a normal liquid crystal display or the like instead of the touch panel. In this case, input means such as a mouse and a keyboard are used to realize the user's selection operation. The display area of the display unit 300 is divided into two areas, a map area A1 and a browse area A2.

The map area A1 is an area for displaying the route searched in the navigation unit 105 together with the surrounding map of the current location. In the example shown in the figure, as a route for a car from the start point S to the goal point G, a route R1 via relay points P1, P2, P3, P4, P5 and P6, and relay points Q1, Q2, Q3, Q4 And route R2 via Q5 is displayed. The relay points P1 to P6 and Q1 to Q5 are automatically set in the route search. Specifically, when moving by car or walking is assumed, the position of an intersection or traffic light is set as a relay point, and when moving by train is assumed, the position of each station is set as a relay point. Is set. In addition, when long-distance movement such as an airplane or a bullet train is assumed, the boundaries of municipalities or prefectures, or borders may be set as relay points. In addition, relay points may be added and deleted by the user.

The map area A1 can display a playlist corresponding to the searched route, as will be described later. The display of the playlist is realized by, for example, displaying an icon or the like of the music reproduced at each point on the map.

The browse area A2 is an area for displaying selectable music that the user can select as the reference music. That is, the browse area A2 displays the music data acquired by the music data acquisition unit 110 (see FIG. 1). In addition, since the electronic device apparatus 100 according to the present embodiment may handle an enormous number of music data, it is difficult to display all selectable music at once in the browse area A2. Therefore, the browse area A2 can be scrolled up and down, left and right. Note that it may be possible to change to a display mode in which more music can be displayed at once.

In addition to these map area A1 and browse area A2, other areas (for example, an area for controlling the reproduction of music) may be provided.

<Playlist creation process>
Next, an operation related to playlist creation of the electronic device apparatus 100 according to the present embodiment will be described with reference to FIG. FIG. 3 is a flowchart illustrating the operation of the electronic device according to the embodiment. In the following, operations unique to the electronic device according to the present embodiment will be described in detail, and other general operations will be omitted as appropriate.

In FIG. 3, when the electronic device 100 according to the present embodiment operates, first, the navigation unit 105 searches for a route from the start point S (that is, the current point) to the goal point G (that is, the target point designated by the user). Is executed (step S101). The required time is calculated for the searched route. The searched route is displayed together with the surrounding maps in the map area A1 of the display unit 300 (see FIG. 2). Note that various known techniques can be used for the route search method and the required time calculation method here.

Subsequently, music data is acquired from the music database 200 by the music data acquisition unit 110 (step S102). The acquired music data is output to the display unit 300 and displayed as selectable music in the browse area A2 as shown in FIG. 2 (step S103).

The user who wants to create a playlist selects a reference song from a plurality of selectable songs. When the selection is performed by the user, the selected music piece is determined as the reference music piece by the reference music determination unit 120 (step S104).

Here, the method of selecting the reference music will be specifically described with reference to FIG. FIG. 4 is a conceptual diagram showing a method of selecting a reference music piece. Hereinafter, a case where the user selects

Tracks

19 and 20 as the reference music will be described.

In FIG. 4, the user touches the icon of a selectable music displayed in the browse area A2, and selects the reference music by dropping it on the map area A1. Here, in particular, the reproduction position of the reference music is also determined by the drop position of the reference music. Specifically, since Track 19 is dropped at the position of the start point S here, Track 19 is set as a reference song to be played at the start point S. On the other hand, since Track 20 is dropped at the position of the goal point G, it is set as a reference music to be played at the goal point G.

As described above, the reference music is preferably selected as a music to be played at a position such as the start point S and the goal point G as described above, but is played at another point (for example, the relay point P or Q). May be selected as the music to be played. In this example, two reference songs are set as an example. However, only one reference song may be set, or three or more reference songs may be set.

Returning to FIG. 3, when the reference music piece is determined, the selection condition determination unit 130 determines the condition selected by the user as the selection condition for creating the playlist (step S105). The selection condition is set as a parameter serving as a determination criterion in the later-described content group extraction. It should be noted that the selection condition may be determined as an initial setting before starting the playlist creation. That is, the timing for determining the selection condition is not limited to immediately after the determination of the reference music piece.

Parameters that can be selected by the user as selection conditions include, for example, BPM of music, key, genre, artist name, release date, track length (playback time), ranking, released country, rating, purchase date, and playback count. And the number of times of connection with the previous song (that is, the number of times extracted in the playlist). Of the parameters described above, the BPM, key, and track length can be obtained by analyzing music data, but other parameters may not be included in the music data.

Furthermore, when the user selects a plurality of reference music pieces, the user can also set a correlation coefficient to be used for content group extraction based on the selection condition. Hereinafter, this correlation coefficient will be described in detail with reference to FIGS. FIG. 5 and FIG. 8 are graphs showing correlation coefficients for extracting content groups to be reproduced between the reference music pieces. FIG. 6 and FIG. 9 are tables showing correlation coefficients for extracting content groups to be reproduced between the reference music pieces. Further, FIGS. 7 and 10 are conceptual diagrams showing a content group extraction method when BPM is used as a selection condition.

In FIG. 5, when a plurality of reference songs are determined, a content group including a plurality of candidate songs is extracted as a song to be played between the reference songs. Therefore, for example, the candidate music played between the first reference music (that is, the reference music corresponding to the start point) and the second reference music (that is, the reference music corresponding to the goal point) is the first reference music and the second reference music. It is extracted that the approximation rate of the parameter which is the selection condition for the reference music changes as shown in the figure. In other words, the candidate song that is played at a timing closer to the first reference song is such that the closer the candidate song is played at a timing closer to the first reference song, the higher the approximation rate of the selection condition with the first reference song, and the closer to the second reference song. The higher the approximation rate of the selection condition with the second reference music, the higher the value. In this way, when performing playback using a playlist, extremely smooth switching of music is realized.

In FIG. 6, for example, consider a case where four candidate songs are extracted as a content group to be played between the first reference song and the second reference song. In this case, as the first candidate music to be reproduced next to the first reference music, a music having an approximation rate of 80 for the first reference music and an approximation rate of 20 for the second reference music is extracted. Similarly, as the second candidate music to be reproduced next to the first candidate music, music having an approximation rate of 60 for the first reference music and an approximation rate of 40 for the second reference music is extracted. As the third candidate music to be reproduced next to the second candidate music, music having an approximation rate of 40 for the first reference music and an approximation rate of 60 for the second reference music is extracted. As the fourth candidate music to be reproduced next to the third candidate music, music having an approximation rate of 20 for the first reference music and an approximation rate of 80 for the second reference music is extracted.

In FIG. 7, for example, it is assumed that BPM is selected as a selection condition, and that the BPM of the first reference music is 120 and the BPM of the second reference music is 130. In this case, music having a BPM of 122 is extracted as the first candidate music. As the second candidate song, a song having a BPM of 124 is extracted. As the third candidate song, a song having a BPM of 126 is extracted. As the fourth candidate song, a song having a BPM of 128 is extracted.

As shown in FIG. 8, the correlation coefficient may be a value based on a relatively complicated function. That is, a correlation coefficient other than the linear function correlation coefficient shown in FIG. 5 can be used.

In FIG. 9, when the correlation coefficient shown in FIG. 8 is used, a song having an approximation rate of 90 for the first reference song and an approximation rate of 10 for the second reference song is extracted as the first candidate song. Similarly, as the second candidate music piece, a music piece having an approximation rate of 80 for the first reference music piece and an approximation rate of 20 for the second reference music piece is extracted. As the third candidate song, a song having an approximation rate of 60 for the first reference song and an approximation rate of 40 for the second reference song is extracted. As the fourth candidate song, a song having an approximation rate of 40 for the first reference song and an approximation rate of 60 for the second reference song is extracted.

10, it is assumed that BPM is selected as a selection condition, for example, as in FIG. 7, and that the BPM of the first reference music is 120 and the BPM of the second reference music is 130. In this case, as the first candidate song, a song having a BPM of 121 is extracted. As the second candidate song, a song having a BPM of 122 is extracted. As the third candidate song, a song having a BPM of 124 is extracted. As the fourth candidate song, a song having a BPM of 126 is extracted.

Returning to FIG. 3 again, when various conditions such as selection conditions are set as described above, content group extraction processing by the content group extraction unit 140 is executed (step S106). Hereinafter, the content group extraction processing will be described in detail with reference to FIG. FIG. 11 is a flowchart illustrating the content group extraction processing in the electronic apparatus according to the embodiment.

In FIG. 11, when the content group extraction process is started, it is first determined whether or not music data having a selection condition exists in the music database 200 (step S201). That is, it is determined whether or not there is a song having parameters set as selection conditions. The parameters that can be the selection condition include parameters that do not necessarily exist in the music data as described above. For this reason, when there is no music data including the parameter set as the selection condition, the extraction process based on the selection condition cannot be executed. Therefore, when there is no music data having the selection condition (step S201: NO), an error message is displayed on the display unit 300 (step S211), and the series of processing ends.

On the other hand, if there is music data having a selection condition (step S201: YES), points are calculated for each music data according to the selection condition. The point here is calculated as a value indicating how appropriate each piece of music data is as a candidate song included in the content group. The When a plurality of parameters are selected as selection conditions, the total value of points calculated for each parameter may be used.

When the points are calculated, it is determined whether or not the points of the high-order music data having a high point have the same value among a plurality (step S203). Here, when the points are not the same value among the music data with the higher points (step S203: NO), the music data having the highest point is extracted as a candidate music (step S209). On the other hand, when the points have the same value (step S203: YES), there are a plurality of music data having the highest points. Therefore, in such a case, in addition to the selection conditions, the parameters of the music that was not selected as the selection conditions are set as new conditions. Note that priorities are automatically assigned to parameters that can be selected as selection conditions, and when a new condition is set, a parameter with a higher priority is set as a new condition.

The priority of each parameter is, for example, in order from the highest, BPM, key, genre, rating, number of connections with the previous song, number of times played, artist name, release date, ranking, track length, country of release, Set as music purchase date. Such priorities are typically set automatically, but may be set by the user.

When a new condition is set, it is first determined whether or not there is a song having a new condition, as in the previous processing (step S205). Here, when there is no music having a new condition (step S205), a parameter with a lower priority is set as a new condition (step S206), and the process of step S205 is repeated. On the other hand, when there is music data having a new condition (step S205: YES), points are calculated for each music data according to the new condition. The point here is calculated as a value indicating how much each piece of music data is suitable for a candidate song, similarly to the point calculated using the above-described selection conditions.

When the points are calculated, it is determined whether or not the points of the high-order music data having a high point have the same value among a plurality of points (step S208). If the points are not the same value among the music data with the higher points (step S208: NO), the music data with the highest point is extracted as a candidate music (step S209). On the other hand, when the points have the same value (step S208: YES), there are a plurality of music data having the highest points. Therefore, in such a case, new conditions are set again (step S206).

As described above, even if candidate music cannot be extracted with only one selection condition, candidate music can be appropriately extracted by sequentially setting parameters that were not selected as selection conditions as new conditions. it can. If a parameter such as a song name that cannot be duplicated with other songs is set as a parameter having the lowest priority, a situation in which points have the same value can be reliably prevented. That is, it is possible to reliably extract candidate songs.

When candidate songs are extracted, it is determined whether or not the number of candidate songs satisfies the number of songs that should be included in the content group (step S210). Here, in particular, the number of songs to be included in the content group is determined according to the required time of the route. Specifically, the number of songs is determined so that the total playback time of the playlist becomes the required time for the route. If it is determined that the number of extracted candidate songs has not reached the number of songs corresponding to the required time (step S210: NO), the processing after step S203 is started again. Note that the processing in this case is executed in a state where music data that has already been extracted as candidate music is excluded. By repeating such extraction processing, a plurality of candidate songs are sequentially extracted. And if the number of music according to a required time is satisfy | filled (step S210: YES), a series of processes will be complete | finished. Incidentally, the above-described series of processing is executed for each searched route.

Returning to FIG. 3 again, when the content group is extracted, the playlist creating unit 150 creates a playlist including the reference music piece and the Miyatsu group for each route (step S107). The plurality of created playlists are output to the display unit 300 and displayed in the map area A1. The user selects one playlist to be used from the plurality of playlists displayed in this way.

Hereinafter, a playlist display method and a selection method will be described in detail with reference to FIGS. 12 and 13. FIG. 12 is a plan view showing a display example of a playlist on the display unit. FIG. 13 is a conceptual diagram showing a playlist selection method using the display unit.

In FIG. 12, the display of a plurality of playlists is realized by displaying an icon indicating a song at each point on the route displayed in the map area A1. In the example shown in the figure, the playlist corresponding to the route R1 has a track 24 reproduced at the relay point P1, in addition to two reference songs, a track 19 reproduced at the start point S and a track 20 reproduced at the goal point G, The track 21 is reproduced at the relay point P3, the track 34 is reproduced at the relay point P4, and the track 30 is reproduced at the relay point P5. On the other hand, the playlist corresponding to the route R2 is recorded at the track 32 and the relay point Q2, which are reproduced at the relay point Q1, in addition to the two reference songs, the track 19 reproduced at the start point S and the track 20 reproduced at the goal point G. The track 27 is played back, the track 33 is played back at the relay point Q4, and the track 28 is played back at the relay point Q5.

Note that the candidate music included in the playlist is typically set to correspond to a relay point on the route, but can be set to a point other than the relay point. Further, as shown in the figure, music may not be set at all relay points.

In FIG. 13, a plurality of playlists are determined as playlists to be used for reproduction when a corresponding route is selected by the user. Here, in particular, the playlist corresponding to the selected route (that is, route R2) is highlighted so that it can be visually discriminated (for example, a line indicating the route is displayed thickly as shown in the figure). . On the other hand, the playlist corresponding to the route that has not been selected (that is, the route R1) is changed so that the display is not conspicuous (for example, as shown in the figure, the border of the icon and the line indicating the route are lightly displayed. ) Alternatively, the playlist corresponding to the route that has not been selected may be deleted.

Returning again to FIG. 3, when a route and a playlist are selected by the user, the selected route is determined as a route to be used in the navigation unit 105, and the selected playlist is used in the playlist determination unit 160. The play list is determined (step S108). When the movement is started along the route, the music data output unit 170 sequentially outputs music data corresponding to the determined playlist (step S109).

In this embodiment, in particular, mixing processing (for example, crossfade processing) is performed on the music data to be output. Therefore, the music included in the playlist is reproduced in a state having a mix section in which the preceding and following music overlap. In the mix section, the beat positions of the preceding and succeeding songs are adjusted to be synchronized, and the occurrence of a sense of incongruity when the songs are switched is reduced. In addition, since the music included in the playlist is played back in the order in which the parameters set as the selection conditions are similar, the music can be switched more smoothly.

<Processing after playlist creation>
Next, processing that can be executed after creating the playlist will be described.

First, the change of the playback position after creating the playlist will be described with reference to FIGS. FIG. 14 is a conceptual diagram showing an operation in the case where the playback position of the music included in the playlist is made earlier. FIG. 15 is a conceptual diagram showing an operation in the case where the playback position of the music included in the playlist is delayed. In FIG. 14 and FIG. 15, for convenience of explanation, the start point S and the goal point G and one relay point P set between them are illustrated in a simplified manner.

In FIG. 14, when the icon of Track 22 that is set to be reproduced at the relay point P is slid to the start point S side, the reproduction start timing of Track 22 can be advanced. In this case, it is possible to adjust the playback time by advancing the start point for the mix section of Track 22 and the music played immediately before.

In FIG. 15, when the icon of Track 22 that is set to be reproduced at the relay point P is slid to the goal point G side, the reproduction start timing of Track 22 can be delayed. In this case, it is possible to adjust the playback time by delaying the start point for the mix section of Track 22 and the music played back immediately thereafter.

When the slide amount is large, there is a possibility that the playback time of the preceding and following songs will be insufficient even if the adjustment of the mix section is executed as described above. In such a case, it is only necessary to re-create a playlist as described later.

Hereinafter, re-creation processing after creating a playlist will be described with reference to FIGS. FIG. 16 is a plan view showing an example when the required time is extended, and FIG. 17 is a conceptual diagram showing the re-creation of the playlist when the required time is extended. FIG. 18 is a plan view showing an example of a case where the route is off, and FIG. 19 is a conceptual diagram showing re-creation of the playlist when the route is off.

In FIG. 16, a case is considered in which the required time to the goal point G is extended due to traffic jams or the like while the route R2 is selected and moved. Specifically, it is assumed that only the current point N in the figure can be reached at the time at which the relay point Q2 should be reached.

In such a case, the track 32 reproduced from the relay point Q1 should be switched to the track 27 at the relay point Q2, but the current point N is still in front of Q2, so that the music can be played normally. Cannot be switched. Therefore, in such a case, playlist recreation after the Track 32 being reproduced is executed.

In FIG. 17, when the playlist is re-created, the required time of the route is calculated again, and a new content group is extracted using the Track 32 being reproduced and the Track 20 reproduced at the goal point G as reference music. That is, a content group corresponding to the extended required time is extracted.

However, when the playlist is re-created, all the songs included in the content group may not be re-extracted, and only some of the songs may be changed. For example, in the playlist re-creation process here, the reproduction start position of Track 27 is changed from the relay point Q2 to the current point N, and only the change in which Track 25 is added to the relay point Q3 is performed. In this way, it is possible to suitably re-create a playlist without greatly increasing the burden on the device.

Subsequently, in FIG. 18, consider a case where the route R2 is selected and the route is deviated while moving. Specifically, it is assumed that the vehicle travels straight ahead at a place where it should turn left at the relay point Q2 toward the relay point Q3. In such a case, a new route from the current point N is searched, and a playlist corresponding to the new route is recreated.

In FIG. 19, it is assumed that a turn to the left is made at the relay point Q6 and a route to the goal point G is found via the relay points Q4 and Q5. In this case, Track 26 is added as a music played at the newly set relay point Q4. Since the points passing through the relay points Q4 and Q5 are not changed, the Track 33 reproduced at the relay point Q4 and the Track 28 reproduced at the relay point Q5 are not changed, but new music including these is added. You may make it extract.

As described above, if the playlist is re-created, it is possible to continue playing the music suitably even if the required time is extended due to an unexpected situation. It should be noted that the playlist re-creation process is not limited to the case where the required time fluctuates while moving on the route as described above. Can be executed. Specifically, for example, when a user adds, deletes, or changes a reference song after creating a playlist, the playlist is recreated.

<Other display examples>
Next, another display example in the map area A1 will be described with reference to FIG. FIG. 20 is a plan view showing a display example of a playlist when the train moves.

In FIG. 20, the electronic device apparatus 100 according to the present embodiment can search not only a travel route by car but also a travel route by train. In this case, each station is set as a relay point X1 to X14. Here, the route R5 via the stations X4, X7 and X8 and the route R6 via the stations X14, X13 and X12 are searched for as a route from the station X6 which is the start point to the station X11 which is the goal point. .

When traveling by train is assumed, the time required is calculated using timetable information. If there is a transfer on the way, the required time may be calculated including the required time for transfer. When the required time is calculated, a content group corresponding to the required time is extracted and a playlist is created for each route, as in the case of traveling by car. Here, as a playlist corresponding to the route R5, a playlist is generated in which the Track 30 is reproduced at the station X4, the Track 25 is reproduced at the station X7, and the Track 27 is reproduced at the station X8. A playlist is created in which Track 28 is played back at station X14, Track 31 is played back at station X13, and Track 24 is played back at station X12.

As described above, even when the moving means are different, if the required time can be calculated, a playlist can be created in the same manner. For example, when a walking movement is assumed, the required time may be calculated from a general walking speed and a route length.

Next, a display example when the play list area A3 is provided will be described with reference to FIG. FIG. 21 is a plan view showing a display example in the playlist area.

21, the display unit 300 may include a playlist area A3 in addition to the map area A1 and the browse area A2 described above. Here, the play list area A3 can display a plurality of content groups corresponding to one route. For example, in the example shown in the figure, as the content group corresponding to the route R1, the first content group including the candidate songs Track20, Track26, and Track01, the second content group including the candidate songs Track23, and Track19 together with the Track09 and Track04 that are the reference songs. , And a third content group including candidate music tracks Track 40, Track 13, and Track 31 are displayed in the playlist area A3.

As described above, if a plurality of content groups are extracted for one route, the user can select a content group to be reproduced from the plurality of content groups. For example, the user touches any one of the first to third content groups displayed in the playlist area A3 and selects a content group to be actually reproduced. In the example shown in the figure, since the first content group is selected, the icons indicating the candidate songs Track20, Track26, and Track01 included in the first content group and the arrows indicating the playback order are highlighted.

As described above, according to the electronic device apparatus 100 according to the present embodiment, it is possible to appropriately create a playlist desired by the user according to the route searched by the navigation function.

In the above-described embodiment, the device for creating a playlist of music data has been described. However, if the content is such that a playlist can be created by setting conditions, the present invention is similarly applied. An electronic device device can be applied. Specifically, the electronic device apparatus of the present invention can also be configured as an apparatus for creating a playlist of video data.

The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification. In addition, the control method of the electronic device and the program are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Electronic device apparatus 105 Navigation part 110 Music data acquisition part 120 Reference | standard music determination part 130 Selection condition setting part 140 Content group extraction part 150 Playlist creation part 160 Playlist determination part 170 Music data output part 200 Music database 300 Display part A1 map Area A2 Browse area A3 Playlist area S Start point G Goal point P, Q Relay point N Current point X Station

Claims

A navigation means for performing a route search to a designated destination and calculating a required time of the route searched by the route search;
Reference content determination means for determining at least one content as reference content to be reproduced at one point on the route searched by the route search;
Selection condition setting means for setting content information of the reference content as a reference for selection conditions for selecting content other than the reference content;
An electronic device apparatus comprising: content group selection means for selecting a content group to be reproduced on the route based on the selection condition and the required time.
2. The electronic device apparatus according to claim 1, wherein the content group selection unit selects a plurality of content groups.
For each content included in the content group, content that is reproduced at a point closer to one point at which the reference content is reproduced as the correlation of the content information set as the reference of the selection condition with respect to the reference content is stronger The electronic device apparatus according to claim 1, further comprising list setting means for setting as
The content information set as a criterion for the selection condition includes at least one of analysis information obtained by analyzing the content and accompanying information stored accompanying the content. Electronic equipment device.
The navigation means can calculate the required time even while moving on the route searched by the route search,
The content group selecting means reselects the content group based on the required time after the change when the required time changes from a value when the content group is selected. The electronic apparatus apparatus as described in.
The navigation means is capable of searching for a new route by re-executing the route search when it is detected that the navigation device is moving off the route searched by the route search.
The electronic device apparatus according to claim 1, wherein when the new route is searched, the content group selection unit reselects the content group based on the required time of the new route. .
The navigation means searches for a plurality of routes selectable by the user by the route search,
The electronic device apparatus according to claim 1, wherein the content group selection unit selects the content group for each of the plurality of routes.
A navigation step of performing a route search to a designated destination and calculating a required time of the route searched by the route search;
A reference content determination step for determining at least one content as a reference content to be reproduced at one point on the route searched by the route search;
A selection condition setting step for setting content information of the reference content as a reference for selection conditions for selecting content other than the reference content;
A content group selection step of selecting a content group to be reproduced on the route based on the selection condition and the required time.
Computer
A navigation means for performing a route search to a designated destination and calculating a required time of the route searched by the route search;
Reference content determination means for determining at least one content as reference content to be reproduced at one point on the route searched by the route search;
Selection condition setting means for setting content information of the reference content as a reference for selection conditions for selecting content other than the reference content;
A program that functions as content group selection means for selecting a content group to be reproduced on the route based on the selection condition and the required time.