JP4978766B2 - Playback apparatus and method, and program - Google Patents

Description

  The present invention relates to a playback apparatus and method, and a program, and more particularly to a playback apparatus and method, and a program that can change the playback speed of a moving image irregularly.

  Devices that handle moving images, such as video cameras, have become widespread, and it is generally performed that a user can easily shoot a moving image, and edit and play back a captured moving image. Some devices such as a video camera can handle (capture and play back) not only moving images but also still images. There is also a camera called a digital still camera that handles still images.

It has also been realized to continuously play back the captured still images with a function called a slide show. It has been proposed that even when a slide show is made to correspond to a moving image and the playback time of the slide show is set, the moving image is played back to the end (without stopping the playback halfway). (For example, see Patent Document 1)
Japanese Patent Laid-Open No. 2005-110088

  When a slide show or the like is performed, if the number of still images to be played back is large or the time of a moving image to be played back is long, the slide show time becomes long. When the slide show time is long, the user may become bored on the way.

  For example, when a user performs a slide show or the like, the user searches for a desired still image or a desired scene of a moving image. In such a case, if the slide show is performed monotonously, the user tends to be bored. there were.

  Also, when a long-time moving image is played back by a function such as a slide show, the playback time of the slide show itself becomes longer and redundant.

  The present invention has been made in view of such a situation, and makes it possible to perform non-monotonous reproduction when reproducing a still image or a moving image.

The playback device according to one aspect of the present invention includes a plurality of playback speeds according to at least a tempo or a rhythm among music characteristics based on predetermined music data among a plurality of stored music data, and the plurality of playback speeds. A table storage unit that stores a table of reproduction speed change patterns associated with the music data associated with the duration of time during which each of the music data is associated, and an image that stores image data A data storage unit and a table corresponding to the designated playback speed change pattern or a table associated with the designated music are read from the table storage unit and associated with the read table and stored. while reproducing by which the music data, sequentially from the image data storage unit, read out the image data , An image based on the read the image data at the reproduction speed, and a reproduction control unit for reproducing only the duration.

The playback method according to one aspect of the present invention includes a plurality of playback speeds according to at least a tempo or a rhythm among music characteristics based on predetermined music data among a plurality of stored music data, and the plurality of playback speeds. A table storage unit that stores a table of reproduction speed change patterns associated with the music data associated with the duration of time during which each of the music data is associated, and an image that stores image data In a playback method of a playback device including a data storage unit, a table corresponding to the specified playback speed change pattern or a table associated with the specified music is read from the table storage unit and read While playing back the music data stored in association with the table, the image data storage unit Sequentially reading the image data and reproducing an image based on the read image data at the reproduction speed for the duration.

The program according to one aspect of the present invention includes a plurality of playback speeds corresponding to at least a tempo or a rhythm among music characteristics based on predetermined music data among a plurality of stored music data, and the plurality of playback speeds. A table storage unit that stores a table of a change pattern of reproduction speed associated with the music data associated with a duration for which each reproduction is continued for each of the plurality of music data , and image data for storing image data A computer that controls a playback device including a storage unit reads out a table corresponding to the specified change pattern of the playback speed or a table associated with the specified music from the table storage unit and reads the table associated with the table, while reproducing the music data stored, the image data Sequentially from the storage unit, reads the image data, an image based on the read the image data at the reproduction speed, a computer readable program for executing the processing including a step of reproducing only the duration.

In one aspect of the present invention, among the characteristics of music based on predetermined music data among a plurality of stored music data, each of a plurality of playback speeds and a plurality of playback speeds according to at least the tempo or rhythm A table of reproduction speed change patterns associated with the music data associated with the duration for which the reproduction is continued is stored for each of the plurality of music data , and the image data is stored. Also, a table corresponding to the instructed playback speed change pattern or a table associated with the instructed music is read and the stored music data associated with the read table is reproduced, The image data is sequentially read, and an image based on the read image data is reproduced at a reproduction speed for a duration.

  According to one aspect of the present invention, it is possible to change the reproduction of a moving image.

  It is also possible to change the playback speed of moving images. It is possible to change the playback speed of continuous playback when continuously playing back not only moving images but also still images.

  Embodiments of the present invention will be described below with reference to the drawings.

[Configuration example of playback device]
FIG. 1 is a diagram showing the configuration of an embodiment of a playback apparatus to which the present invention is applied. The playback device 11 shown in FIG. 1 can be applied to a device capable of handling moving images and still images, such as a personal computer, a PDA (Personal Digital Assistant), and a mobile phone. In the following description, the term “image” refers to a moving image or a still image unless otherwise specified.

  The playback device 11 includes a RAM (Random Access Memory) 12, an output unit 13, an expansion processing unit 14, a control unit 16, an input unit 17, a power control unit 18, a ROM (Read Only Memory) 19, an internal recording unit 20, and a drive 21 is included. These parts are connected to each other by a bus 15.

  The RAM 12 temporarily stores image data and audio data under the control of the control unit 16, and stores programs and data executed by the control unit 16. The output unit 13 includes a display unit 31, a speaker 32, and the like. For example, the display unit 31 of the output unit 13 is configured by a liquid crystal display or the like, and displays an image based on image data supplied from the RAM 12 or the like. Similarly, the speaker 32 of the output unit 13 reproduces sound based on sound data supplied from the RAM 12 or the like.

  The decompression processing unit 14 acquires image data from the internal recording unit 20 or the removable medium 41 based on the control of the control unit 16. The acquired image data is compressed by a predetermined method, and the decompression processing unit 14 decompresses the compressed image data and supplies the decompressed image data to the output unit 13 via the RAM 12. Here, the predetermined schemes related to compression and decompression are, for example, MPEG (Moving Picture Experts Group phase), JPEG (Joint Photographic Experts Group), and the like.

  The control unit 16 includes, for example, a CPU (Central Processing Unit) and the like, executes a program recorded in the ROM 19 and the internal storage unit 20, and controls the entire playback device 11. The control unit 16 performs various processes according to the input signal supplied from the input unit 17.

  The input unit 17 is a part for inputting a user instruction, and includes a plurality of buttons (not shown), and supplies an input signal corresponding to a user operation to the control unit 16. When power supply is instructed from the control unit 16, the power supply control unit 18 supplies power to each unit of the playback device 11 from a battery (not shown) or an external power source connected to the playback device 11. The ROM 19 records various programs and data, and supplies the recorded programs and data to the control unit 16.

  The internal recording unit 20 includes, for example, a hard disk built in the playback device 11 and a non-volatile flash memory, and records image data, programs, and the like. A removable medium 41 is attached (connected) to the drive 21 as necessary. When the removable medium 41 is mounted, the drive 21 reads data recorded on the removable medium 41 or writes data to the removable medium 41 as necessary.

  The removable medium 41 includes, for example, a non-volatile flash memory, a magnetic disk, an optical disk, a magneto-optical disk, and the like, and is detachable from the playback device 11.

  Although the output unit 13 is included in the playback device 11 in FIG. 1, the output unit 13 may be configured by an external device different from the playback device 11. For example, a television receiver connected to the playback apparatus 11 with a predetermined cable may be used as the output unit 13.

[About playback device functions]
FIG. 2 is a diagram for explaining the function of the playback device 11. The playback device 11 includes a table storage unit 61, a table reference unit 62, an operation unit 63, a speed setting unit 64, a timer 65, an image data storage unit 66, and a display control unit 67 (having these functions). ).

  The table storage unit 61 has a function of storing a table to be described later with reference to FIG. The table reference unit 62 is a function for referring to a table stored in the table storage unit 61. The operation unit 63 has a function of accepting an instruction from the user. The table reference unit 62 is a table corresponding to an instruction from the user of the operation unit 63, and refers to a table stored in the table storage unit 61.

  The value referred to by the table reference unit 62 is supplied to the speed setting unit 64. The speed setting unit 64 is a function for setting the speed of the reproduced image. When the image to be reproduced is a moving image, the reproduction speed of the moving image is set. When the image to be reproduced is a still image, the reproduction speed for continuous reproduction of a plurality of still images is set.

  The timer 65 is a function for measuring time. The speed setting unit 64 uses the time measured by the timer 65 to set the reproduction speed so that an image is reproduced at a predetermined speed for a predetermined time, as will be described later. The playback speed set by the speed setting unit 64 is supplied to the display control unit 67.

  The display control unit 67 is also supplied with data stored in the image data storage unit 66. The image data storage unit 66 has a function of storing image data. The display control unit 67 controls the image based on the image data supplied from the image data storage unit 66 to be reproduced at the reproduction speed set by the speed setting unit 64.

  In other words, for example, when reproducing a moving image based on moving image data, the reproducing device 11 in the present embodiment can change the speed at which the moving image is reproduced based on the table. In the following description, the reproduction performed at the reproduction apparatus 11 at which the speed is changed is appropriately described as a variable speed reproduction.

  Here, the correspondence between the function of the playback apparatus 11 shown in FIG. 2 and the configuration of the playback apparatus 11 shown in FIG. 1 will be described. In addition, the correspondence shown below is an example and does not show limitation.

  The table storage unit 61 (FIG. 2) is a function realized by the internal storage unit 20 (FIG. 1), for example. The table reference unit 62 is a function realized, for example, when the control unit 16 executes processing based on a program that is stored in the ROM 19 (or the internal storage unit 20) and is activated when performing variable speed reproduction. It is.

  The operation unit 63 is a function realized by the input unit 17. In the case of the playback device 11 provided with an operation member such as a touch panel, the operation unit 63 is a function realized by including the display unit 31 and the like.

  The speed setting unit 64 is a function that is realized when the control unit 16 executes processing based on a program that is activated when the variable speed reproduction is realized. The timer 65 may be provided with dedicated hardware, or may be a function realized by the control unit 16 executing a process based on a program that is activated when realizing the variable speed reproduction. The image data storage unit 66 is a function realized by the internal storage unit 20.

  The display control unit 67 is a function that is realized when the control unit 16 executes processing based on a program that is activated when the variable speed reproduction is realized. Further, in order to change the reproduction speed, the display control unit 67 temporarily stores the image data expanded by the expansion processing unit 14 in the RAM 12, and changes the reading speed of the data to the output unit 13, for example. In order to change the reproduction speed, the RAM 12 and the expansion processing unit 14 are also necessary as functions for realizing the display control unit 67. For example, a memory referred to as a field memory can be used as the RAM 12 that implements the display control unit 67.

  Here, the function is realized as a function realized by the control unit 16 executing a process based on a predetermined program. However, each unit may be a function configured by dedicated hardware. .

[About the table]
The operation of the playback apparatus 11 that performs such variable speed playback will be described. First, a description will be given of a table (a table stored in the table storage unit 61) referred to during reproduction. FIG. 3 is a diagram illustrating a table stored in the table storage unit 61. FIG. 3 shows an example in which the table storage unit 61 stores three tables 81 to 83.

  The tables 81 to 83 stored in the table storage unit 61 are tables that are referred to when the variable speed reproduction is executed. The difference between the tables is the difference in the reproduction speed (the reproduction speed change pattern). . That is, when the table referred to by the table reference unit 62 is different, the playback time is different (the playback speed is different) even when the same moving image is played back.

  The table 81 is a table that is referred to when the reproduction time is short (the reproduction speed is high), the table 82 is a table that is referred to when the reproduction time is normal (the reproduction speed is normal), and the table 83 is This table is referenced when the playback time is long (the playback speed is slow).

  However, the notation of “short”, “normal”, and “long” here is a comparison of the playback time during variable speed playback and a comparison with the normal (same size) playback time that is not variable speed playback. is not. Similarly, the notation of “fast”, “normal”, and “slow” playback speed here is a comparison with the playback speed at the time of the variable speed playback, not a comparison of the normal playback speed that is not the speed playback. . Further, the expression “normal” does not mean that variable speed reproduction is not performed (that is, normal reproduction is performed), but means an intermediate time (intermediate speed) during variable speed reproduction.

  Referring to the tables 81 to 83, each table is a table in which a reproduction speed is associated with a time for continuing reproduction at the reproduction speed. Referring to the table 81, the playback speed “1 ×” is associated with “2.0 seconds” (hereinafter referred to as (1 ×, 2.0 seconds) in this case), and then , (8 times, 0.75 seconds), (1 time, 1.0 seconds), (4 times, 1.0 seconds), (1 time, 1.5 seconds), etc. Time is associated.

  When variable speed playback is performed with reference to the table 81, 1 × speed (equal speed) playback is performed for 2.0 seconds, then 8 × speed playback is performed for 0.75 seconds, and then 1 × speed playback is performed. The playback speed is set sequentially in the order described in the table 81 such that the playback is performed for 1.0 second and then the 4 × playback is performed for 1.0 second, and playback at the set playback speed is performed. Are repeated for the associated time.

  When the playback speed is 1 time, it indicates that the playback is the same speed and that playback is performed at the same speed as normal playback. When the playback speed is 1 or more times, it indicates fast-forward playback and playback at a speed faster than normal playback. The reproduction speed of the tables 81 to 83 shown in FIG. Therefore, when playback is performed according to the tables 81 to 83, playback is often performed faster than normal.

  When the reproduction speed is less than 1 time, it is slow reproduction, which means that reproduction is performed at a speed slower than normal reproduction. A numerical value less than 1 time may be described as the value of the table (a table in which a numerical value less than 1 time is described may be provided).

  Similarly to the table 81, the table 82 and the table 83 are tables in which the reproduction speed and the duration are associated with each other. The operation of the playback apparatus 11 including the table storage unit 61 in which such tables 81 to 83 are recorded will be described.

[Operation of playback device]
The operation of the playback device 11 will be described with reference to the flowchart of FIG. In step S11, it is determined whether or not reproduction is instructed. The reproduction here means variable speed reproduction. The table reference unit 62 analyzes an instruction from the user input from the operation unit 63, and determines whether or not the instruction is an instruction for variable speed reproduction. When the user instructs the variable speed reproduction, the image to be variable speed reproduced by the user is already selected.

  For example, a screen as shown in FIG. 5A is displayed on the display unit 31 as the output unit 13. The displayed image is, for example, the first scene image of the moving image when it is a moving image, or the head image of a plurality of still images that are continuously reproduced. The user selects the top image of a moving image to be reproduced or a still image to be continuously reproduced, and displays the selected image on the display unit 31. It is also possible to instruct continuous playback in a situation where moving images and still images are mixed, so that moving images and still images are continuously played back.

  Furthermore, when variable speed reproduction is performed, a screen for setting the speed is displayed on the display unit 31. For example, the screen example shown in FIG. 5A shows a screen in a state where a speed of “fast” can be set. The screen example shown in FIG. 5B shows a screen in a state where the speed “normal” can be set. The screen example shown in FIG. 5C shows a screen in a state where a speed of “slow” can be set.

  As a default of the screen for determining the speed at the time of variable speed reproduction, a screen (FIG. 5B) in which a speed “normal” can be set is displayed on the display unit 31, and the right and left ( By selecting the arrow displayed on the left and right of the character string “ordinary” in the diagram of FIG. 5B, the screen transitions to a screen in which a speed of “fast” or “slow” can be selected (screen of FIG. 5A). Alternatively, the screen may be changed to the screen of FIG. 5C).

  In any case, the user instructs variable speed reproduction and sets the reproduction speed at the time of variable speed reproduction. If the setting is performed by the user, it is determined in step S11 (FIG. 4) that reproduction has been instructed, and the process proceeds to step S12.

  In step S12, a table corresponding to the designated reproduction speed is referred to. When the table reference unit 62 determines that the instruction from the user supplied from the operation unit 63 instructs the variable speed reproduction and the predetermined reproduction speed is instructed, the table reference unit 62 corresponds to the instructed reproduction speed. Then, reference to the table stored in the table storage unit 61 is started.

  For example, when the tables 81 to 83 as shown in FIG. 3 are stored in the table storage unit 61, the table corresponding to the reproduction speed designated by the user is referred to among the tables 81 to 83. When the playback speed instructed by the user is “fast” (when the speed is determined on the screen shown in FIG. 5A), the table 81 is referred to.

  In step S13, image data is read. The image data storage unit 66 determines an image for which variable speed playback is instructed in accordance with a user instruction from the operation unit 63, reads out image data based on the determination result, and starts supply to the display control unit 67. If the image for which the user has instructed variable speed reproduction is a moving image, moving image data is read and supplied to the display control unit 67. When the image for which the user has instructed variable speed reproduction is a still image, for example, still image data stored in a predetermined folder is sequentially read and supplied to the display control unit 67.

  In step S14, the playback speed is set in accordance with the playback speed described in the table. The speed setting unit 64 determines the playback speed to be set at that time from the table referred to by the table reference unit 62, and sets the playback speed based on the determination result. For example, when (first time, 2.0 seconds) described in the first line of the table 81 (FIG. 3) is referenced, the speed setting unit 64 sets “1 time” as the playback speed.

  In step S15, playback is performed at the set playback speed. The display control unit 67 controls display so that an image based on the image data supplied from the image data storage unit 66 is reproduced at the reproduction speed set by the speed setting unit 64.

  Display control by the display control unit 67 will be described with reference to FIG. The compressed image data is supplied from the internal storage unit 20 or the removable disk 41 to the decompression processing unit 14. The image data expanded by the expansion processing unit 14 is supplied to the RAM 12 and temporarily stored. The RAM 12 is composed of a field memory or the like, and creates an image.

  The image data stored in the RAM 12 is supplied to the display unit 31, and the reproduction speed is controlled by controlling the supply timing (the timing at which the image data is read from the RAM 12). For example, when the reproduction speed is set to double, the image data is controlled to be read from the RAM 12 at a reading speed that is twice as high as the reading speed at the time of the single speed.

  In step S15, reproduction is performed at the set reproduction speed. In step S16, it is determined whether a predetermined time has elapsed. The predetermined time is the duration described in the row of the referenced table. For example, when (1 time, 2.0 seconds) described in the first line of the table 81 (FIG. 3) is referenced, the predetermined time in step S16 is “2.0 seconds”. is there.

  The speed setting unit 64 determines whether a predetermined time has elapsed based on the measurement time from the timer 65. In order to make such a determination, the speed setting unit 64 determines whether or not the duration associated with the set playback speed has elapsed since the time when the playback speed was set in step S14. Continue to judge and refer to.

  In step S16, when the speed setting unit 17 determines that the duration (predetermined time) has elapsed, the process proceeds to step S17. In step S17, it is determined whether or not the image for which reproduction is instructed at that time has been reproduced to the end. When the speed setting unit 64 determines that the duration has elapsed, it is determined whether there is image data supplied from the image data storage unit 66 to the display control unit 67 (whether supply of image data is continued). It is determined whether or not the image for which variable speed reproduction is instructed has been reproduced to the end.

  If the image for which variable speed reproduction is instructed is a moving image, it is determined whether or not the reproduction has been completed up to the last scene of the moving image. If the image for which variable speed playback is instructed is a still image, it is determined whether or not all the images included in the folder including the still image (all of the still images for which the user has instructed continuous playback) have been played back. Is done. Further, when a variable speed playback is instructed for an image in a folder in which moving images and still images are mixed, it is determined whether or not all the images included in the folder have been played.

  If it is determined in step S17 that the image instructed by the user has been reproduced to the end, the processing of the flowchart shown in FIG. 4 (variable reproduction processing) is terminated and it is determined that the image has not been reproduced to the end. In this case, the process is returned to step S12, and the subsequent processes are repeated.

  By returning to step S12, first, in step S12, the playback speed and duration described in the next row of the table corresponding to the instructed playback speed are referred to. In step S13, image data is supplied from the image data storage unit 66 to the display control unit 67. Note that since the instructed image data is continuously supplied from the image data storage unit 66 to the display control unit 67, the image data is not read out only when the process of step S13 is executed.

  In step S14, the playback speed is set to the playback speed referenced in step S12. In step S15, the display control unit 67 reproduces the image data at the newly set reproduction speed. That is, at this point, the playback speed is changed.

  By performing such processing, for example, the first line (1 time, 2.0 seconds) to the second line (8 times, 0.75 seconds) of the table 81 (FIG. 3) is referred to. In this case, the reproduction speed is changed from 1 × speed to 8 × speed.

  By repeating such processing, it is possible to realize reproduction at a predetermined reproduction speed every predetermined time (interval). In other words, it is possible to perform the reproduction while changing the reproduction speed instead of performing the reproduction at a constant speed.

  In this way, instead of being played back monotonously at a constant speed, for example, when a moving image is played back at a variable speed, the playback speed can change, thereby changing the flow of the image itself. (It is possible to mix a situation in which a scene where the image is switched quickly and a scene where the image is switched are mixed). This means that it is possible to produce an effect as if an effect was applied to the reproduced image. Further, it is possible to give a sense of rhythm to the reproduced image. For this reason, it is possible to improve entertainment properties (eliminating user boredom).

  In addition, if a value of 1 or more is described as the playback speed described in the table, it can be played back at a speed faster than the normal speed playback (normal playback). Or, even a large number of still images can be viewed by the user in a relatively short time, and can be easily viewed.

  By the way, the above-described variable speed reproduction can be applied to a function called a slide show, for example. The slide show is a function for continuously playing still images and moving images. When only a still image is reproduced as a slide show, the slide show is performed by switching still images one after another. When only a moving image or a moving image is reproduced as a slide show, the moving image is normally reproduced and reproduced to the end (a plurality of moving images are normally reproduced continuously).

  However, when the present invention is applied to a function called a slide show, when only a still image is displayed as a slide show, the timing at which the still image is switched is different (the time for which one still image is displayed is different for each still image). ) So that it can be played.

  When only a moving image is displayed as a slide show, reproduction can be performed so that the reproduction speed is changed at predetermined intervals (this interval itself also changes) in one stream of moving images.

  In addition, when a slide show is performed when still images and moving images are mixed, in the case of a still image, playback is performed so that the playback timing differs between one still image and the next still image or moving image. In the case of an image, it can be reproduced so that the reproduction speed in the moving image changes.

  Therefore, even when the present invention is applied to a function called a slide show or the like, the above-described effect, that is, an effect can be applied to an image reproduced by the slide show, and the entertainment property can be improved. Can be improved. Further, since the reproduction time can be shortened, it is possible to browse efficiently even when a long-time moving image or a still image with a large number of images is displayed as a slide show.

[Other configuration of playback device]
By applying the present invention, entertainment properties and the like are improved. However, in order to further improve entertainment properties and the like, BGM (Back Ground Music) (music) may be played when performing variable speed playback. good. Here, BGM is music that is not related to the content of still images or moving images when variable speed playback is performed (music that is not related to the images to be played back), but is music that is played during variable speed playback. To do.

  Even if the BGM is made to flow at the time of the variable speed reproduction, the variable speed reproduction regarding the image is performed as described above. That is, the variable speed reproduction for the image is performed based on the processing of the flowchart shown in FIG. When BGM is also output, the processing of the flowchart shown in FIG. 4 is executed, and processing for outputting BGM is also performed.

  When BGM is output, the function of the playback device 11 is as shown in FIG. The functions shown in FIG. 6 are compared with the functions shown in FIG. 2. The functions of the playback device 11 shown in FIG. 6 are the same as the functions of the playback device 11 shown in FIG. And a BGM data processing unit 102 are added.

  The BGM data storage unit 101 can be configured by the internal storage unit 20 (FIG. 1) or the removable medium 41 (FIG. 1), and has a function of storing BGM data (BGM data) (music data). The BGM data processing unit 102 is a function that is realized when the control unit 16 (FIG. 1) executes processing based on a program that processes BGM data among programs that are activated during variable speed reproduction.

  The BGM data storage unit 101 supplies the stored BGM data to the BGM data processing unit 102 based on an instruction from the user supplied from the operation unit 63. For example, when executing the variable speed reproduction, the user issues an instruction for the variable speed reproduction and an instruction for the reproduction speed, and also gives an instruction for outputting the BGM and what kind of BGM to output. The instruction is supplied from the operation unit 63 to the BGM data storage unit 101. The BGM data storage unit 101 reads out BGM data corresponding to a user instruction and supplies the BGM data to the BGM data processing unit 102.

  The BGM data processing unit 102 generates BGM based on the supplied BGM data, and supplies the BGM to the speaker 32 (FIG. 1) as the output unit 13. By performing such processing together with the processing of the flowchart shown in FIG. 4, it becomes possible to cause BGM to flow during variable speed reproduction.

  By the way, when the reproduction speed of variable speed reproduction and BGM are not related, as described above, the variable speed reproduction process and the BGM output process may be performed separately. In other words, for the variable speed reproduction process, the table referred to by the table reference unit 62 and the BGM data read from the BGM data storage unit 101 are not related and may be configured to be processed separately. .

  In other words, in such a case, the user may be able to select the reproduction speed at the time of variable speed reproduction and BGM separately (individually).

  In this way, the playback speed and BGM at the time of variable speed playback may be selected separately, but only one of them may be selected. That is, the BGM may be uniquely determined when the playback speed is selected, or the playback speed may be uniquely determined when the BGM is selected.

  In this case, the user selects either the reproduction speed at the time of variable speed reproduction or the BGM that flows at the time of variable speed reproduction. In this way, when only one of them is selected, for example, the speed at the time of variable speed reproduction is changed in accordance with the tempo and rhythm of BGM (characteristics of music as BGM). be able to. That is, when the BGM tempo and rhythm are fast, the playback speed can be set fast, and when the BGM tempo and rhythm is slow, the playback speed can be set slow.

  In this case, for example, the table stored in the table storage unit 62 is stored in a state associated with the BGM data. The table storage unit 62 stores, for example, tables 121 to 123 as shown in FIG.

  The tables 121 to 123 shown in FIG. 7 are tables in which the playback speed and the duration of the playback speed are associated with each other like the tables 81 to 83 shown in FIG. BGM ID1 to BGM ID3 are further associated with the tables 121 to 123, respectively. The BGM ID1 to BGM ID3 are identifiers for uniquely identifying the BGM data stored in the BGM data storage unit 101.

  For example, the table 121 is associated with BGM data identified by BGM ID1. That is, when the table 121 is referred to, BGM data identified by BGM ID 1 is read from the BGM data storage unit 101 (FIG. 6) and supplied to the BGM data processing unit 102.

  The table 121 describes a pattern in which the playback speed and the maintenance time change in accordance with changes in the tempo and rhythm of the BGM identified by the BGM ID1. For example, in a portion where the tempo is fast, the pattern is described so that the reproduction speed is high.

  By using such tables 121 to 123, the change in BGM and the change in the image coincide with each other, and the continuous display of images called a slide show or the like can be more effectively and more entertaining for the user. It is possible to provide in an enhanced state.

  As described above, the table stored in the table storage unit 61 and the BGM data stored in the BGM data storage unit 101 are associated with each other, and the BGM data is stored in accordance with a user instruction. When the BGM data is stored, the table is also stored.

  For example, the playback device 11 is configured to be able to store BGM data or the like supplied from another device via a network or the like in the BGM data storage unit 101. In the case where the playback device 11 is configured in this way, when BGM data is stored in the BGM data storage unit 101, a table associated with the stored BGM data (the tempo and rhythm have already been analyzed and the A table in which tempo and rhythm are described as data (playback speed and duration) (as a pattern) is also stored in the table storage unit 61.

  When such a table (tables 121 to 123 shown in FIG. 7) is used, the operation of the playback apparatus 11 is performed based on the flowchart of FIG. The process of the flowchart shown in FIG. 8 is a process flow in which the process in step S35 is added as compared with the process of the flowchart shown in FIG. That is, steps S31 to S34 are basically the same processing as steps S11 to S14, and steps S36 to S38 are basically the same processing as steps S15 to S17, and thus detailed description thereof is omitted. .

  By executing the processing of steps S31 to S34, a table corresponding to the reproduction speed instructed by the user is determined, reference is started (continuation), and image data reading is started (continuation). In step S35, the BGM ID associated with the referenced table is read, and the BGM data identified by the read BGM ID is read from the BGM data storage unit 101 (FIG. 6). Supplied to the BGM data processing unit 102.

  In step S36, the display control unit 67 reproduces the image data, and the BGM data processing unit 102 reproduces (processes) the BGM data. By performing such processing, an image and BGM are provided to the user side.

  When BGM is output at the time of variable speed reproduction by such processing, one table is prepared for one BGM data (for example, as shown in FIG. 7, one BGM ID1 is stored in the table 121). Assigned). In such a case, a table as a result of analyzing BGM data in advance is prepared, and the table is stored in the table storage unit 61. In this way (as described above), a table may be prepared and stored, but the playback device 11 itself analyzes the BGM data, and based on the analysis result, the playback speed and duration May be determined (that is, data equivalent to the data described in the table is generated).

  In this case, the playback device 11 is configured to include an analysis unit (not shown) that analyzes the BGM data, and the playback speed is controlled using the result analyzed by the analysis unit. At this time, a table may be created and stored based on the analysis result, and the playback speed may be controlled by referring to the table.

  For such BGM data analysis (specifically, analysis of BGM tempo and rhythm based on BGM data), the technique described in Japanese Patent Application Laid-Open No. 2005-122664 filed earlier by the present applicant is used. Can be applied.

  As described above, even when the playback device 11 analyzes the BGM data, the effect as described above, that is, the effect applied to the image played back by a function called a slide show or the like. Can improve entertainment. In addition, since the playback time can be shortened, even when a long-time moving image or a large number of still images are displayed as a slide show, the user can efficiently browse.

  Note that the user can set the above-described variable speed reproduction and normal reproduction other than the variable speed reproduction at the start of reproduction. When normal playback is set, the playback device 11 performs normal playback, that is, playback that has a playback speed of 1 and does not change. It is not necessary to refer to the table during normal reproduction. However, if the table is also referred to during normal reproduction, it is only necessary that the reproduction speed of the table is described as 1 ×.

  In the above-described embodiment, the playback speed and duration are determined by referring to the table. However, at random without depending on the playback speed and duration described in advance in the table or the like, The playback speed and duration may be set.

[About recording media]
The series of processes described above can be executed by hardware or can be executed by software. When a series of processing is executed by software, a program constituting the software executes various functions by installing a computer incorporated in dedicated hardware or various programs. For example, the program is installed in a general-purpose personal computer from the program storage medium.

  As shown in FIG. 1, a program storage medium that stores a program that is installed in a computer and can be executed by the computer includes a magnetic disk (including a flexible disk), an optical disk (CD-ROM (Compact Disc-Read Only). Memory), DVD (including Digital Versatile Disc)), magneto-optical disc (including MD (Mini-Disc)), or removable media 41, which is a package medium made of semiconductor memory, or the program is temporary or permanent ROM 19 stored in the hard disk, and a hard disk that constitutes the internal storage unit 20. The program is stored in the program storage medium using a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via a communication unit (not shown) that is an interface such as a router or a modem as necessary. It is done using.

  In the present specification, the step of describing the program stored in the program storage medium is not limited to the processing performed in time series according to the described order, but is not necessarily performed in time series. Or the process performed separately is also included.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

It is a figure which shows the structure of one Embodiment of the reproducing | regenerating apparatus to which this invention is applied. It is a figure which shows the function of a reproducing | regenerating apparatus. It is a figure for demonstrating a table. It is a flowchart for demonstrating operation | movement of a reproducing | regenerating apparatus. It is a figure which shows the example of a screen for speed setting. It is a figure which shows the other structural example of the reproducing | regenerating apparatus. It is a figure for demonstrating a table. It is a flowchart for demonstrating other operation | movement of a reproducing | regenerating apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 Playback apparatus, 12 RAM, 13 Output part, 14 Decompression processing part, 15 Bus, 16 Control part, 17 Input part, 18 Power supply control part, 19 ROM, 20 Internal storage part, 21 Drive, 31 Display part, 32 Speaker, 41 Removable media, 61 Table storage section, 62 Table reference section, 63 Operation section, 64 Speed setting section, 65 Timer, 66 Image data storage section, 67 Display control section

Claims (3)

Among music characteristics based on predetermined music data among a plurality of stored music data, at least a plurality of playback speeds according to tempo or rhythm and a duration for which each of the plurality of playback speeds is continued A table storage unit that stores a table of reproduction speed change patterns associated with the music data associated with each of the plurality of music data ;
An image data storage unit for storing image data;
The table corresponding to the instructed change pattern of the reproduction speed or the table associated with the instructed music is read from the table storage unit , and the music data associated with the read table and stored. while reproducing, sequentially from the image data storage unit, reads the image data, an image based on the read the image data at the reproduction speed, reproduction apparatus and a reproduction controller for reproducing only the duration. Among music characteristics based on predetermined music data among a plurality of stored music data, at least a plurality of playback speeds according to tempo or rhythm and a duration for which each of the plurality of playback speeds is continued A playback method for a playback apparatus, comprising: a table storage unit that stores a table of reproduction speed change patterns associated with the music data associated with each of the plurality of music data; and an image data storage unit that stores image data In
The table corresponding to the instructed change pattern of the reproduction speed or the table associated with the instructed music is read from the table storage unit , and the music data associated with the read table and stored. A reproduction method comprising: sequentially reading out the image data from the image data storage unit and reproducing an image based on the read-out image data at the reproduction speed for the duration. Among music characteristics based on predetermined music data among a plurality of stored music data, at least a plurality of playback speeds according to tempo or rhythm and a duration for which each of the plurality of playback speeds is continued Is controlled for a playback apparatus including a table storage unit that stores a table of reproduction speed change patterns associated with the music data associated with each of the plurality of music data, and an image data storage unit that stores image data. On the computer,
The table corresponding to the instructed change pattern of the reproduction speed or the table associated with the instructed music is read from the table storage unit , and the music data associated with the read table and stored. while reproducing, sequentially from the image data storage unit, reads the image data, an image based on the read the image data at the reproduction speed, for executing the processing including a step of reproducing only the duration Computer readable program.

Images