JP2020118894A - Playback control device, playback device, playback control method, and program - Google Patents

Abstract

To perform comfortable random playback.SOLUTION: A playback control device includes: a priority calculation unit which calculates a playback priority for each of a plurality of musical pieces recorded in a storage medium, and calculates a higher playback priority of a musical piece newly registered in the storage medium than other musical pieces; and a playback control unit which randomly reproduces a plurality of musical pieces based on the calculated playback priority so that a playback frequency of musical pieces having high playback priority is higher than that of the musical pieces having low playback priority.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reproduction control device, a reproduction device, a reproduction control method, and a program.

2. Description of the Related Art There is known a technique for selecting and playing music that a user likes in an audio device that stores a plurality of music files.

For example, Patent Literature 1 describes a technique of selecting a music piece to be reproduced based on the priority added to each music piece associated with a playlist.

JP, 2006-98516, A

For example, music may be randomly played from a memory that stores a large number of music files of hundreds to thousands or more. When a large number of music files are played at random, the possibility that a song newly added by the user or a song that the user likes will be played decreases as the number of music files increases. There is a demand for a technique capable of reproducing a song that the user likes while performing random reproduction so that the user can comfortably listen to music.

The present invention proposes a reproduction control device, a reproduction device, a reproduction control method, and a program capable of performing comfortable random reproduction.

The playback control device of the present invention calculates a playback priority for each of a plurality of songs recorded in a storage medium, and sets the playback priority of a song newly registered in the storage medium higher than other songs. A priority calculation unit for calculating, and a reproduction control unit for randomly reproducing a plurality of the music pieces, based on the calculated reproduction priority, by setting the reproduction frequency of the music pieces having a high reproduction priority higher than that of the music pieces having a low reproduction priority. And

The playback device of the present invention includes an operation unit that receives an operation on the playback control device, and a speaker that outputs the music.

The reproduction control method of the present invention calculates a reproduction priority for each of a plurality of music pieces recorded in a storage medium, and makes the reproduction priority of a music piece newly registered in the storage medium higher than other music pieces. Based on the calculated priority calculation step and the calculated reproduction priority, a reproduction control step of randomly reproducing a plurality of the music pieces by setting the reproduction frequency of the music pieces having a high reproduction priority higher than that of the music pieces having a low reproduction priority. And, including.

The program of the present invention calculates a playback priority for each of a plurality of songs recorded in a storage medium, and calculates a playback priority of a song newly registered in the storage medium higher than other songs. Priority calculation step, based on the calculated playback priority, the music having a high playback priority has a higher playback frequency than the music having a low playback priority, and a playback control step of randomly playing the plurality of songs, Is executed by a computer that operates as a reproduction control device.

According to the present invention, comfortable random reproduction can be performed.

FIG. 1 is a block diagram showing an example of the configuration of the reproducing apparatus according to the first embodiment. FIG. 2 is a schematic diagram for explaining an example of the music database. FIG. 3 is a schematic diagram for explaining an example of the operation screen. FIG. 4 is a flowchart showing an example of a processing flow of the reproduction control device according to the first embodiment. FIG. 5 is a flowchart showing an example of a processing flow of the reproduction control device according to the second embodiment. FIG. 6 is a flowchart showing an example of a processing flow of the reproduction control device according to the third embodiment. FIG. 7 is a flowchart showing an example of the processing flow of the reproduction control device according to the fourth embodiment. FIG. 8 is a flowchart showing an example of the flow of processing of the reproduction control device according to the fifth embodiment. FIG. 9 is a flowchart showing an example of the flow of processing of the reproduction control device according to the fifth embodiment, which is different from FIG. 8.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to this embodiment, and when there are a plurality of embodiments, the present invention includes a combination of the embodiments.

[First embodiment]
The reproducing apparatus according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the reproducing apparatus according to the present embodiment.

As shown in FIG. 1, the playback device 1 includes a storage unit 10, a GPS (Global Positioning System) reception unit 20, an operation unit 30, an audio output unit 40, a display unit 50, and a control unit (playback control device). ) 100 and.

In the present embodiment, the playback device 1 is, for example, a device for a vehicle mounted on a vehicle. The reproducing apparatus 1 selectively reproduces a large number of music files recorded in the storage unit 10 at random. The playback device 1 sets a priority for a music file based on the position of the vehicle, the traveling state, or an operation by the user, and randomly plays the music so that the user's favorite music can be easily played.

The storage unit 10 holds various information. The storage unit 10 stores, for example, a program for realizing each unit of the control unit 100. In this case, the control unit 100 realizes the function of each unit by expanding and executing the program stored in the storage unit 10. The storage unit 10 is realized by a semiconductor memory device such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a flash memory (Flash Memory), or a storage device such as a hard disk, a solid state drive, or an optical disk. You can The storage unit 10 may be composed of a plurality of different memories or the like. The storage unit 10 may be a storage device provided outside the playback device 1. In this case, the storage device is connected to the control unit 100 by wire or wireless (not shown). The storage unit 10 stores a music database 11 and a map database 12.

The music database 11 stores various music as music files. It is assumed that the music database 11 stores a large number of music files of hundreds to thousands or more.

An example of the music database will be described with reference to FIG. FIG. 2 is a schematic diagram for explaining an example of the music database.

In the music database 11, music files are stored for each album, for example. In the example shown in FIG. 2, “album #1” of “artist A” is stored in the music database 11. "Album #1" includes "Music #1" to "Music #10". A reproduction priority, a reproduction time, and a genre are associated with "song #1" to "song #10", respectively.

The reproduction priority is an index indicating the frequency of reproduction when a music file stored in the music database 11 is randomly reproduced. In the present embodiment, the reproduction priority is represented by, for example, an integer of “1” to “5”, and indicates that a music piece having a larger number has a higher reproduction frequency in random reproduction. In addition, the music having the reproduction priority “0” means that the music is excluded from the music selected at the random reproduction. In other words, the music having the reproduction priority of “0” is a music that is not reproduced in the random reproduction. The reproduction time is the reproduction time of the music. The genre is the genre of music of the song. For example, “music piece #1” has a reproduction priority of “4”, a reproduction time of “3 minutes 12 seconds”, and a genre of “rock”.

The songs stored in the song database 11 do not have to be in album units. The music database 11 may store a music file for each music.

The map database 12 stores various map information.

The storage unit 10 is not limited to the music database 11 and may store a database of other contents. The storage unit 10 may store a moving image database in which image data of various moving images are stored as moving image files.

The GPS receiving unit 20 is composed of a GPS receiving circuit, a GPS receiving antenna, etc., and receives GPS signals. The GPS receiver 20 outputs the received GPS signal to the current position calculator 110.

The operation unit 30 receives various operations on the control unit 100. The various operations include an operation for confirming the music title of the music being played. Various operations include operations for increasing or decreasing the volume of the music being played. Various operations include an operation of starting random reproduction and an operation of ending random reproduction. The various operations include an operation of raising the priority of the outputted music and an operation of lowering it. The various operations include an operation of continuously reproducing music of the same genre, an operation of continuously reproducing music of the same tempo, and an operation of continuously reproducing music of the same artist. The operation unit 30 outputs control signals according to the received various operations to the operation control unit 150. The operation unit 30 can be realized by, for example, a physical switch or a touch panel provided on the display unit 50.

The voice output unit 40 outputs various voices. The audio output unit 40 reproduces the music stored in the music database 11 under the control of the reproduction control unit 160. The voice output unit 40 can be realized by a speaker mounted on the vehicle.

The display unit 50 displays various images. The display unit 50 displays an operation screen for executing an operation on the reproduction device 1 under the control of the display control unit 170. For example, when the storage unit 10 stores a moving image database, the display unit 50 displays the image data corresponding to the moving image file stored in the moving image database. The display unit 50 may display, for example, a moving image stored on the cloud acquired via a communication unit (not shown) or a moving image provided by a moving image sharing service. The display unit 50 is a display including, for example, a liquid crystal display (LCD) or an organic EL (Organic Electro-Luminescence) display. The display unit 50 may be provided with a touch panel as the operation unit 30.

An example of an operation screen for executing an operation on the playback device 1 will be described with reference to FIG. FIG. 3 is a schematic diagram showing an example of the operation screen.

FIG. 3 shows an operation screen 50A displayed on the display unit 50. The operation screen 50A has a music title display area 51 and a music information display area 52. Below the operation screen 50</b>A, an operation unit 30 including a touch panel provided on the display unit 50 is shown.

In the song name display area 51, the song name of the song being played is displayed. The artist name of the music may be displayed in the music name display area 51. For example, by touching the song name display area 51, the song name or artist name of the outputted song may be displayed. In this case, when the music name display area 51 is touched, a control signal indicating that the user has confirmed the music name of the music being reproduced is output to the operation control unit 150.

In the music information display area 52, the jacket of the album in which the music is recorded, the seek bar, etc. are displayed. A playlist of music may be displayed in the music information display area 52.

In the example shown in FIG. 3, the operation unit 30 includes a first operation unit 31, a second operation unit 32, a third operation unit 33, a fourth operation unit 34, a fifth operation unit 35, and a sixth operation unit. It has six operating parts with the part 36. Different functions are assigned to the first operation unit 31 to the sixth operation unit 36, respectively.

When the first operation unit 31 is touched, for example, music is played. When the second operation unit 32 is touched, for example, the music is stopped. When the third operation unit 33 is touched, for example, the music is rewound. When the fourth operation unit 34 is touched, for example, the music is fast-forwarded or skipped. When the fifth operation unit 35 is touched, for example, the mode is changed to the random reproduction mode. When the sixth operation unit 36 is touched, for example, a mode in which music of the same genre as the currently output music is played continuously at random or a mode in which music of the same artist is played continuously at random Transition. Specifically, when the sixth operation unit 36 is touched from the first operation unit 31, control signals for executing the respective functions are output to the operation control unit 150. The operation control unit 150 causes the reproduction control unit 160 to execute an operation according to the control signal. According to the operation control unit 150, the reproduction control unit 160 executes operations such as reproducing a music piece and stopping.

The control unit 100 includes a current position calculation unit 110, a vehicle information acquisition unit 120, a determination unit 130, a priority calculation unit 140, an operation control unit 150, a reproduction control unit 160, and a display control unit 170. .. The control unit 100 can be realized by an electronic circuit including a CPU (Central Processing Unit), for example.

The current position calculation unit 110 calculates the current position of the vehicle. The current position calculation unit 110 receives a GPS signal from the GPS reception unit 20 and calculates the current position of the host vehicle based on the GPS signal. The current position calculation unit 110 calculates, for example, whether the current position is a general road or an expressway. The current position calculation unit 110 calculates, for example, whether the current position is an urban area or a suburb. The current position calculation unit 110 outputs the acquired information on the current position to the priority calculation unit 140.

The vehicle information acquisition unit 120 acquires vehicle information regarding the vehicle. The vehicle information acquisition unit 120 acquires vehicle speed, brake operation, steering operation, and the like as vehicle information. For example, the vehicle information acquisition unit 120 acquires vehicle information from an ECU (Electronic Control Unit) (not shown) via a CAN (Controller Area Network), for example. The vehicle information acquisition unit 120 outputs the acquired vehicle information to the priority calculation unit 140.

The determination unit 130 determines the information associated with the music file of the music stored in the music database 11. The determination unit 130 determines the artist name, album name, song name, playback time, etc. associated with the music file. The determination unit 130 may determine music attributes such as the genre of music, tempo, rhythm, chord progression, and type of musical instrument forming the music. The determination unit 130 outputs the determination result to the priority calculation unit 140.

For example, when there are songs with the same song name in different albums with the same artist name, the determination unit 130 determines that those songs are the same song. The determination unit 130 may determine, for example, whether the song included in the album is a song or an MC (microphone comment). The determination unit 130 may determine, for example, a song whose time is shorter than other songs as a sound effect. For example, the determination unit 130 determines that “song #7” is an MC in FIG. For example, the determination unit 130 determines that “song #4” in FIG. 2 is a sound effect such as the sound of a musical instrument.

The priority calculation unit 140 calculates and sets the reproduction priority of the music to be reproduced at the time of random reproduction, with respect to the music recorded in the music database 11. The priority calculation unit 140 has information regarding the current position received from the current position calculation unit 110, vehicle information received from the vehicle information acquisition unit 120, a determination result received from the determination unit 130, a control signal received from the operation control unit 150, and the like. Based on, the priority of the music is calculated.

The priority calculation unit 140 may calculate, for example, a higher priority for a new song having a date and time stored in the song database 11. The priority calculation unit 140 may calculate, for example, the priority of a song that has been stored in the song database 11 for a predetermined period of time to be low. For example, the priority calculation unit 140 may calculate a song whose priority is calculated low as high after a predetermined period has elapsed. That is, the priority calculation unit 140 may calculate the priority based on the date and time stored in the music database 11.

Based on the determination result of the determination unit 130, the priority calculation unit 140 calculates a high reproduction priority for the first song and the last song of the album when the songs are stored in the song database 11 for each album. You may. For example, referring to FIG. 2 again, the “album #1” includes “song #1” to “song #10”. In this case, the priority calculation unit 140 calculates the reproduction priorities of “Music #1” and “Music #10” to be high. For example, the priority calculation unit 140 calculates the reproduction priority of “Music #1” and “Music #10” as “4”.

Based on the judgment result of the judgment unit 130, the priority calculation unit 140 calculates a high reproduction priority of the music having the same name as the album name when the music is stored in the music database 11 for each album. Good. For example, in FIG. 2, it is assumed that the name of “album #1” and the name of “music piece #6” are the same. In this case, the priority calculation unit 140 calculates the reproduction priority of “Song #6” to be high. For example, the priority calculation unit 140 calculates the reproduction priority of “Song #6” as “5”.

Even if the priority calculation unit 140 calculates the reproduction priority of another music stored in the music database 11 according to the calculated reproduction priority of the music based on the determination result rank of the determination unit 130. Good. The priority calculation unit 140 may calculate the reproduction priority of the music of the same genre as the music of which the reproduction priority is calculated to be high among the music stored in the music database 11. The priority calculation unit 140 may calculate the reproduction priority of a music having the same tempo as the reproduction priority of the music stored in the music database 11 to be high.

Even if the priority calculation unit 140 calculates the reproduction priority as “0” in order to exclude the music stored in the music database 11 from the targets of random reproduction, based on the determination result of the determination unit 130. Good. For example, the priority calculation unit 140 may calculate the reproduction priority of a sound effect, MC, or the like in the music stored in the music database 11 as “0”. In the case of the example shown in FIG. 2, the priority calculation unit 140 calculates the reproduction priority of “Music #4” and “Music #7” as “0”.

The priority calculation unit 140 may calculate the reproduction priority based on a control signal from the operation control unit 150 according to a predetermined operation from the user during random reproduction. For example, the priority calculation unit 140 confirms the song name of the song being played, rewinds the song to an arbitrary position, rewinds to the beginning of the song on the operation screen as shown in FIG. When receiving a control signal indicating that the music is to be raised, the reproduction priority of the music is calculated to be high. For example, when the priority calculation unit 140 receives a control signal for stopping the music, fast-forwarding to an arbitrary position, skipping to the next music, or lowering the volume during reproduction of the music. , The reproduction priority of the music is calculated to be low.

The priority calculation unit 140 may calculate the reproduction priority based on the information regarding the current position received from the current position calculation unit 110. When the current position, for example, the current position is along the sea, a mountain road, an urban area, a suburb, etc., the priority calculation unit 140 calculates a high reproduction priority of a music including a song name or lyrics related to the current position. May be. The priority calculation unit 140 acquires the place name of the current position, for example, based on the information about the current position, and calculates a high reproduction priority of a song in which the same name as the place name of the current position is included in the song name or lyrics. May be.

The priority calculation unit 140 may calculate the reproduction priority based on the information regarding the current position received from the current position calculation unit 110 and the past reproduction history. For example, the priority calculation unit 140 may acquire the current position, acquire the history of songs that have been frequently viewed in the past at the current position, and calculate the reproduction priority of the songs to be high. For example, when there is a difference between the music being listened to on the expressway and the music being listened to on the general road, the priority calculating unit 140 calculates the reproduction priority of a different music at a different position. That is, the priority calculating section 140 may change the music for which the reproduction priority is calculated to be high, depending on the current position. For example, the reproduction control unit 160 stores the past reproduction history of the music in the music database 11 by associating the music with the current position.

The priority calculation unit 140 may calculate the reproduction priority based on the vehicle information received from the vehicle information acquisition unit 120 and the past reproduction history. For example, the priority calculation unit 140 may acquire the current vehicle information, acquire the history of the music often viewed in the past in the current vehicle information, and calculate the reproduction priority of the music as high. As a result, the priority calculation unit 140 determines, for example, when there is a difference between the music being viewed when traveling on an expressway, when traveling on a general road, and when being caught in a traffic jam. , The playback priority of a different song is calculated to be high in each situation. That is, the priority calculation unit 140 may change the music for which the reproduction priority is calculated to be high, depending on the vehicle information. For example, the reproduction control unit 160 stores the past reproduction history of the music in the music database 11 by associating the music with the vehicle information.

The priority calculation unit 140 may calculate the reproduction priority based on the day of the week, the date and time, the time, and the past reproduction history. For example, the priority calculation unit 140 acquires date and time information regarding the current day of the week, date and time, and time from a GPS signal, etc., and obtains a history of songs that were often viewed in the past in the current date and time information. The reproduction priority of the music may be calculated to be high. As a result, the priority calculation unit 140, when there is a difference in the music that is being listened to, for example, when commuting to school, when going out for shopping, when going out for vacation, when the music is different in each situation. The reproduction priority of is calculated to be high. That is, the priority calculation unit 140 may change the music for which the reproduction priority is calculated to be high, depending on the date and time information. The past reproduction history of the music is stored in the music database 11 by the reproduction control unit 160 in association with the music and the date and time information.

The priority calculation unit 140 may calculate the reproduction priority based on various biometric information of the driver and the past reproduction history. Various types of biometric information of the driver may be detected using a known technique such as a line-of-sight detection sensor and a pulse wave sensor. The driver's biometric information detected is drowsiness, fatigue, and the like. The priority calculation unit 140 acquires, for example, the biometric information of the current driver, acquires a history of songs that are often viewed in the past in the current biometric information, and calculates the reproduction priority of the song as high. Good. Thereby, the priority calculation unit 140 determines the degree of sleepiness of the driver and the degree of fatigue when there is a difference in the music being viewed depending on the degree of sleepiness of the driver and the degree of fatigue. Accordingly, the reproduction priority of different music is calculated to be high. That is, the priority calculation unit 140 may have different songs for which the priority is calculated to be high, depending on the biometric information. The past reproduction history of the music is stored in the music database 11 by the reproduction control unit 160 in association with the music and the biometric information, for example.

In addition to the process of calculating the priority, the priority calculation unit 140 may cancel the reproduction priority associated with all the music stored in the music database 11. When random playback is executed in the state where the playback priority is canceled, all the songs stored in the song database 11 are played completely randomly.

The priority calculation unit 140 cancels the reproduction priority associated with the music, based on the vehicle information received from the vehicle information acquisition unit 120, for example. For example, the priority calculation unit 140 may cancel the reproduction priority when the vehicle is located on a highway or an urban area. For example, the priority calculation unit 140 may cancel the reproduction priority when the current position changes. For example, the priority calculation unit 140 may cancel the reproduction priority when entering an expressway from a general road or entering an urban area from a suburb. The reverse is also possible. For example, when the vehicle arrives at the destination set in advance in the car navigation device based on the vehicle information received from the vehicle information acquisition section 120, the priority calculation section 140 cancels the set reproduction priority. Good.

For example, the priority calculation unit 140 may cancel the set reproduction priority after a predetermined reproduction time has elapsed after setting the reproduction priority. The predetermined reproduction time may be determined, for example, based on the total reproduction time of all the music stored in the music database 11. In this case, the predetermined reproduction time is, for example, 10% of the total reproduction time, but is not limited to this. The user may arbitrarily set the predetermined reproduction time.

For example, when a moving image database is stored in the storage unit 10, the priority calculating unit 140 calculates a reproduction priority for a moving image stored in the moving image database as in the case of music. Good. The reproduction priority calculation unit 140 calculates the reproduction priority for, for example, a video that is acquired via a communication unit (not shown) and stored in the cloud, or a video provided by a video sharing service. Good.

The operation control unit 150 receives a control signal regarding an operation received from a user or the like from the operation unit 30. The operation control unit 150 receives control signals relating to various operations such as an operation for starting random reproduction and an operation for ending random reproduction. The operation control unit 125 outputs a control signal corresponding to the received control signal to the reproduction control unit 160, the display control unit 170, and the like.

The reproduction control unit 160 reproduces various audio data recorded in the storage unit 10. The reproduction control unit 160 reproduces the music of various music files stored in the music database 11 from the audio output unit 40, for example. The reproduction control unit 160 randomly reproduces the audio file stored in the music database 11 according to a control signal from the operation control unit 150, for example.

The reproduction control unit 160 randomly reproduces the music stored in the music database 11 based on the reproduction priority calculated by the priority calculation unit 140, for example. The reproduction control unit 160, for example, generates a reproduction list and randomly reproduces the music according to the reproduction list. Here, the play list is not completely random, and the music piece calculated to have a high play priority is created to be played twice or more within a predetermined period.

For example, the reproduction control unit 160 may reproduce a music piece having a high reproduction priority and then continuously reproduce a music piece in the same genre as the music piece. For example, the reproduction control unit 160 may reproduce a music piece having a high reproduction priority and then continuously reproduce a music piece having the same tempo as the music piece. For example, the reproduction control unit 160 may reproduce a music piece having a high reproduction priority and then continuously reproduce the music pieces of the artist of the music piece.

The reproduction control unit 160, for example, when receiving a predetermined control signal from the operation control unit 150 during the reproduction of a music piece during random reproduction, the reproduction control unit 160 determines from the random reproduction that the same genre, tempo, Alternatively, the music of the artist may be continuously reproduced. The predetermined operation signal is output, for example, by the user operating the operation unit 30 with an instruction to continuously reproduce the music of the same genre, tempo, or artist from the random reproduction. .. In other words, the user can operate the operation unit 30 to continuously switch the random reproduction mode to the music of the same genre, tempo, or artist as the music to the reproduction mode. Similarly, the user can operate the operation unit 30 to continuously switch the music pieces of the same genre, tempo, or artist from the reproduction mode to the random reproduction mode.

The display control unit 170 displays various images on the display unit 50. Specifically, a video is displayed on the display unit 50 by outputting a control signal to the display control unit 170 and the display unit 50. The display control unit 170 displays an operation screen for executing an operation on the reproduction device 1, for example, by outputting a control signal to the display unit 50.

For example, when the storage unit 10 stores a moving image database, the display control unit 170 displays various moving images stored in the moving image database. In this case, when the playback priority of the moving image is calculated, the display control unit 170 may randomly display the moving image based on the calculated playback priority. In addition, when the playback priority is calculated for the videos stored on the cloud or the videos provided by the video sharing service, the display control unit 170 sets these videos as the playback priority. You may make it display it randomly based on this. In this case, the display control unit 170 can randomly display the moving image, as in the method in which the reproduction control unit 160 randomly reproduces the music.

[Processing of First Embodiment]
Processing of the first embodiment of the control unit 100 of the reproducing apparatus 1 will be described with reference to FIG. FIG. 4 is a flowchart showing an example of a processing flow of the first embodiment of the control unit 100.

First, the control unit 100 determines whether a new song is registered in the song database 11 (step S101). When it is determined that the new song is not registered (No in step S101), the control unit 100 repeats the process of step S101. On the other hand, when it is determined that the new music is registered (Yes in step S101), the control unit 100 proceeds to step S102.

The control unit 100 determines whether or not a new music piece is registered in album units (step S102). When it is determined that the album is registered for each album (Yes in step S102), the control unit 100 proceeds to step S103. On the other hand, when it is determined that the album has not been registered (No in step S102), the control unit 100 proceeds to step S106.

In step S103, the control unit 100 calculates and sets the playback priorities of the first song and the last song of the songs registered in album units to be higher (step S103). Then, the control unit 100 proceeds to step S104.

The control unit 100 generates a random reproduction list for executing random reproduction based on the reproduction priority (step S104). Then, the control unit 100 proceeds to step S105.

The control unit 100 randomly reproduces the music stored in the music database 11 based on the random reproduction list generated in step S104 (step S105). Then, the control unit 100 ends the process of FIG.

In the case of No in step S102, the control unit 100 calculates and sets the reproduction priority of the new music piece to be higher (step S106). Then, the control unit 100 proceeds to step S104.

As described above, in the present embodiment, when a new music piece is registered, it is possible to set the reproduction priority of the music piece to be high and perform random reproduction. This improves the frequency with which newly added music that the user desires to view is played during random playback. Further, in the present embodiment, when the music is registered in album units, the reproduction of the first music and the last music that are highly likely to be desired by the user to be viewed or the main music of the album is reproduced. Random playback can be performed by setting a high priority. This improves the reproduction frequency of the first music piece and the last music piece of the album during random reproduction. As a result, the present embodiment can perform comfortable random reproduction that reflects the user's wishes.

[Second embodiment]
The process of the second embodiment of the control unit 100 will be described with reference to FIG. FIG. 5 is a flowchart showing an example of the processing flow of the second embodiment of the control unit 100.

The process of FIG. 5 shows a process different from that of FIG. 4 when a song is newly stored in the song database 11 for each album.

First, the control unit 100 determines whether or not there is a song having the same name as the album name when the song is newly stored in the song database 11 for each album (step S201). When it is determined that there is no song having the same name (No in step S201), the control unit 100 ends the process of FIG. On the other hand, when it is determined that there is a song having the same name as the album name (Yes in step S201), the control unit 100 proceeds to step S202.

The control unit 100 calculates and sets the reproduction priority of the music having the same name as the album to be higher (step S202). Then, the control unit 100 proceeds to step S203.

Since step S203 and step S204 are the same as step S104 and step S105 shown in FIG. 4, description thereof will be omitted.

As described above, in the present embodiment, when the music is registered in album units, the reproduction priority of the music having the same name as the album that the user desires to watch or is the main music of the album is increased. Can be set to perform random playback. This improves the reproduction frequency of the music having the same name as the album during random reproduction. As a result, the present embodiment can perform comfortable random reproduction that reflects the user's wishes. In the second embodiment, the reproduction priority is set by determining whether or not there is a song having the same name as the album name, but it is determined whether or not there is a song having a name including the album name. Alternatively, the reproduction priority may be set. Further, the reproduction priority may be set by determining whether or not there is a song having a name similar to the album name.

[Third embodiment]
The process of the third embodiment of the control unit 100 will be described with reference to FIG. FIG. 6 is a flowchart showing an example of the processing flow of the third embodiment of the control unit 100.

The process of FIG. 6 shows a process different from that of FIG. 4 when a song is newly stored in the song database 11 for each album.

First, the control unit 100 determines whether or not a content other than a song is included in the album when the album is newly stored in the song database 11 (step S301). Contents other than music are MC and sound effects. When it is determined that there is no content other than music (No in step S301), the control unit 100 ends the process of FIG. On the other hand, when the control unit 100 determines that there is content other than music (Yes in step S301), the control unit 100 proceeds to step S302.

The control unit 100 excludes the content other than the music from the album from the target of random reproduction (step 302). Then, the control unit 100 proceeds to step S303.

Since step S303 and step S304 are the same as step S104 and step S105 shown in FIG. 4, description thereof will be omitted.

As described above, in the present embodiment, when music is registered in album units, contents other than music can be excluded from targets of random reproduction. As a result, in the present embodiment, it is possible to reproduce only the music in the random reproduction. As a result, the present embodiment can execute comfortable random reproduction.

[Fourth Embodiment]
The process of the fourth embodiment of the control unit 100 will be described with reference to FIG. 7. FIG. 7 is a flowchart showing an example of the processing flow of the fourth embodiment of the control unit 100.

First, the control unit 100 acquires various types of information (step S401). In step S401, the control unit 100 acquires at least one of various information such as current position information, vehicle information, date/time information, and biometric information. Then, the control unit 100 proceeds to step S402.

The control unit 100 determines whether there is a past reproduction history corresponding to the various information acquired in step S401 (step S402). When it is determined that there is no past reproduction history (No in step S402), the control unit 100 ends the process of FIG. On the other hand, when it is determined that there is a past reproduction history (Yes in step S402), the control unit 100 proceeds to step S403.

The control unit 100 calculates and sets a higher reproduction priority of the music corresponding to the past reproduction history (step S403). Then, the control unit 100 proceeds to step S404.

Since step S403 and step S404 are the same as step S104 and step S105 shown in FIG. 4, description thereof will be omitted.

As described above, in the present embodiment, in the present situation, the reproduction priority of the music often viewed in the past is set to be high and the random reproduction is performed based on various kinds of current information and the past reproduction history. Can be performed. As a result, during random reproduction, the reproduction frequency of the music often viewed in the past in the current situation is improved. As a result, the present embodiment can perform comfortable random reproduction that reflects the user's wishes.

Further, in the present embodiment, random reproduction can be executed by setting the reproduction priority of the music that has been skipped during music reproduction in the past to be low. As a result, during random reproduction, the reproduction frequency of music that has been skipped in the past decreases. As a result, in the present embodiment, it is difficult to reproduce a music piece that the user does not like, so that comfortable random reproduction can be executed.

[Fifth Embodiment]
The process of the fifth embodiment of the control unit 100 will be described with reference to FIGS. 8 and 9. 8 and 9 are flowcharts showing an example of the processing flow of the fifth embodiment of the control unit 100.

The processing illustrated in FIG. 8 shows an example of the flow of processing for resetting the random playlist.

First, the control unit 100 acquires the duration of random reproduction (step S501). Then, the control unit 100 proceeds to step S502.

The control unit 100 determines whether or not the duration of random reproduction has passed a predetermined time (step S502). When it is determined that the predetermined time has not elapsed (No in step S502), the control unit 100 proceeds to step S501. On the other hand, when it is determined that the predetermined time has elapsed (Yes in step S502), the control unit 100 proceeds to step S503.

The control unit 100 resets the random play list (step S503). Then, the control unit 100 ends the process of FIG.

Reset processing different from that in FIG. 8 will be described with reference to FIG. 9.

First, the control unit 100 acquires current position information (step S601). Then, the control unit 100 proceeds to step S602.

The control unit 100 determines whether or not the current position is a predetermined place (step S602). The predetermined place is, for example, a destination set in the car navigation device, an urban area, a highway, or the like. The predetermined location may be set by the user.

When it is determined that the place is not the predetermined place (No in step S602), the control unit 100 proceeds to step S601. On the other hand, when it is determined that the location is the predetermined place (Yes in step S602), the control unit 100 proceeds to step S603.

The control unit 100 resets the random play list (step S603). Then, the control unit 100 ends the process of FIG.

As described above, in the present embodiment, the reproduction priority can be reset when a predetermined time has elapsed or a predetermined place has been reached since the random reproduction was started. As a result, by resetting the reproduction priority and then recalculating the reproduction priority, it is possible to reflect the user's latest wish and execute random reproduction. As a result, the present embodiment can perform comfortable random reproduction that reflects the user's wishes.

Although the embodiments of the present invention have been described above, the embodiments are not limited by the contents of these embodiments. Further, the components described above include those that can be easily conceived by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range. Furthermore, the components described above can be combined appropriately. Furthermore, various omissions, substitutions, or changes of the constituent elements can be made without departing from the scope of the above-described embodiment.

1 Reproduction Device 10 Storage Unit 11 Music Database 12 Map Database 20 GPS Reception Unit 30 Operation Unit 40 Voice Output Unit 50 Display Unit 100 Control Unit (Reproduction Control Device)
110 current position calculation unit 120 vehicle information acquisition unit 130 determination unit 140 priority calculation unit 150 operation control unit 160 reproduction control unit 170 display control unit

Claims (7)

A priority calculation unit that calculates a playback priority for each of the plurality of songs recorded in the storage medium, and that calculates a playback priority of the song newly registered in the storage medium higher than other songs.
Based on the calculated playback priority, a playback control unit that randomly plays a plurality of the songs by setting the playback frequency of the song having a high playback priority to be higher than that of the song having a low playback priority,
And a reproduction control device. Further comprising a determination unit that determines at least one of the music genre and the music tempo of each of the plurality of songs recorded in the storage medium as a music attribute,
The priority calculation unit calculates a reproduction priority so that a music piece having a high reproduction priority among a plurality of the music pieces and a music piece having the same music attribute are continuously reproduced.
The reproduction control device according to claim 1. The storage medium stores music for each album,
The priority calculation unit calculates a high priority for at least one of the first song, the last song of the album, and a song including the same name as the album,
The reproduction control device according to claim 1. The priority calculation unit calculates a reproduction priority of a music piece of a predetermined time or less from a plurality of the music pieces as low,
The reproduction control device according to any one of claims 1 to 3. A reproduction control device according to any one of claims 1 to 4,
An operation unit that receives an operation on the reproduction control device,
A speaker for outputting the music,
A playback device comprising: A priority calculation step of calculating a playback priority for each of the plurality of songs recorded in the storage medium, and calculating a playback priority of the song newly registered in the storage medium higher than other songs;
On the basis of the calculated playback priority, the music having a high playback priority has a higher playback frequency than the music having a low playback priority, and a playback control step of randomly playing the plurality of the songs,
And a reproduction control method. A priority calculation step of calculating a playback priority for each of the plurality of songs recorded in the storage medium, and calculating a playback priority of the song newly registered in the storage medium higher than other songs;
On the basis of the calculated playback priority, the music having a high playback priority has a higher playback frequency than the music having a low playback priority, and a playback control step of randomly playing the plurality of the songs,
A program for causing a computer that operates as a reproduction control device to execute.

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