JP4877166B2 - Playback apparatus and program - Google Patents

Description

  The present invention relates to a technology for reproducing sound and images.

Conventionally, a technique for arranging and reproducing a plurality of segments representing sound and images in time series has been proposed. For example, Patent Literature 1 discloses a music composition device that arranges and reproduces pieces selected by a user in order from a plurality of performance sounds of accompaniment and melody. A symbol (icon) corresponding to the segment selected by the user is displayed on the display device. Each symbol is arranged in a straight line from left to right.
JP 2000-214853 A

  In the technique of Patent Document 1, a plurality of symbols corresponding to each element are linearly arranged. Therefore, even when a section composed of a plurality of segments is repeatedly reproduced (looped), there is a problem that the user cannot intuitively grasp that the section is repeated. In view of the above circumstances, an object of the present invention is to solve the problem of displaying each symbol so that a user can intuitively recognize repetitive reproduction of a plurality of segments.

  In order to solve the above problems, a playback apparatus according to the present invention includes a storage unit that stores segment data representing sound or image for each of a plurality of segments, and a segment in which a plurality of unit symbols are arranged in a ring shape. Display control means for displaying a ring on a display device, element assignment means for assigning a piece to each unit symbol, and arrangement of a plurality of unit symbols in a piece ring for fragment data assigned to each unit symbol And reproducing means for reproducing in order.

  According to the above configuration, the unit symbols to which the segments are allocated are arranged in a ring and the segment data of the plurality of segments are reproduced in the order of the arrangement of the unit symbols. There is an advantage that the user can recognize intuitively.

  In a preferred aspect of the present invention, the storage means stores sound or image feature quantities for each of the plurality of segments, and the display control means displays the unit symbol to which the segment allocation unit has allocated the segments. It displays on a display apparatus in the aspect according to the feature-value of the piece. According to the above aspect, since the unit symbol is displayed in a mode corresponding to the feature amount of the segment, the user can intuitively grasp the feature of the segment assigned to each unit symbol.

  In a further preferred aspect, the display control means displays an indicator designating the unit symbol at a predetermined position of the display device so that the indicator indicates the unit symbol corresponding to the segment being reproduced by the reproducing device. The plurality of unit symbols are moved along the respective arrays. In another aspect, the display control means displays an indicator indicating the unit symbol on the display device, and the indicator is displayed so that the indicator indicates the unit symbol corresponding to the segment being reproduced by the reproducing means. Move along the array of multiple unit symbols. According to each aspect described above, the user can easily grasp the element being reproduced by the reproducing means from the element ring.

  In a preferred aspect of the present invention, the display control means displays a plurality of element rings on the display device, and the element assignment means assigns a piece to each unit symbol in each of the plurality of element rings, and reproduces the means. Reproduces the element data of the element corresponding to each unit symbol in each of the plurality of element rings in parallel for the plurality of element rings in the order of arrangement of the unit symbols in the element ring. In the above aspect, since a plurality of segments corresponding to separate segment rings are reproduced in parallel, it is possible to generate various reproduced sounds and images.

  In a further preferred aspect, the display control means displays a segment row in which a plurality of segment symbols corresponding to each segment into which a song is divided is arranged on a display device for each song, and the segment allocation means includes a plurality of segment allocation means. The segment corresponding to the segment design designated by the user from the segment sequence is assigned to the unit design designated by the user. According to the above aspect, there exists an advantage that a user can select easily the desired segment allocated to each unit symbol.

  The playback device according to each of the above aspects is realized by hardware (electronic circuit) such as a DSP (Digital Signal Processor) dedicated to playback of a fragment, and general-purpose arithmetic processing such as a CPU (Central Processing Unit) This is also realized by cooperation between the apparatus and the program. The program according to the present invention displays a segment ring in which a plurality of unit symbols are arranged in a ring on a display device on a computer having storage means for storing segment data representing sound or image for each of the plurality of segments. Display control processing, segment allocation processing for allocating segments to each unit symbol, and playback for reproducing segment data allocated to each unit symbol in the order of the arrangement of multiple unit symbols in the segment ring Process. With the above program, the same operations and effects as those of the playback apparatus according to the present invention are achieved. The program of the present invention is provided to a user in a form stored in a computer-readable recording medium and installed in the computer, or provided from a server device in a form of distribution via a communication network and installed in the computer. Is done.

<A: Configuration>
FIG. 1 is a block diagram showing a configuration of a playback apparatus according to an embodiment of the present invention. The playback device 100 is realized by a computer system that includes the control device 10 and the storage device 20. The control device 10 executes various processes by executing the program and controls each unit of the playback device 100. An input device 32, a display device 34, and a sound emitting device 36 are connected to the control device 10. The input device 32 is a device (for example, an operation unit such as a mouse or a keyboard) through which a user inputs an instruction to the playback device 100. The display device 34 displays an image under the control of the control device 10. The sound emitting device 36 outputs sound waves under the control of the control device 10.

  The storage device 20 stores a program executed by the control device 10 and various data processed by the control device 10. A known recording medium such as a semiconductor storage device or a magnetic storage device is arbitrarily adopted as the storage device 20. As shown in FIG. 1, the storage device 20 stores song data for each of a plurality of songs.

  FIG. 2 is a block diagram showing the composition of music. A section S is defined for the music. The section S is, for example, a part composed of a plurality of bars including a characteristic part (for example, a rust part) in the music, and the user operates the input device 32 to start and end points in the music. And is defined by setting However, the selection method of the section S and the time length of the section S are arbitrary. For example, the whole piece of music may be a single section S.

  As shown in FIG. 2, the section S is divided into a plurality of sections (hereinafter referred to as “elements”) P with a time point synchronized with the beat of the music as a boundary. For example, a segment corresponding to one or a plurality of beats or a segment in which one beat is divided into a plurality of segments (that is, a segment corresponding to 1/2 beat or 1/4 beat) is defined as the segment P. The time length of each segment P is adjusted to the same time for a plurality of music pieces.

  As shown in FIG. 1, the music data of one piece of music includes, for each of a plurality of pieces P belonging to the section S of the piece of music, piece data A representing the waveform of the musical sound belonging to the piece P, And a feature amount F reflecting the acoustic properties of the piece P. Various numerical values such as musical tone energy (intensity), amplitude spectrum centroid, frequency at which the spectrum intensity is maximum, and MFCC (Mel-Frequency Cepstrum Coefficient) are adopted as the feature amount F. In this embodiment, all the music data is stored in one storage device 20, but a configuration in which a plurality of music data is distributed and stored in a plurality of storage devices, and the piece data A and features of each music. A configuration in which the quantity F is stored in a separate storage device is also adopted.

  The control device 10 functions as a plurality of elements (the display control unit 12, the segment allocation unit 14, and the reproduction unit 16) in FIG. 1 by executing a program. Each element of the control device 10 is also realized by a dedicated electronic circuit such as a DSP. In addition, each element may be distributed and mounted on a plurality of integrated circuits.

  The reproduction unit 16 acquires the segment data A of each segment P from the storage device 20 and sequentially outputs it to the sound emitting device 36. The sound emitting device 36 generates a sound wave corresponding to each piece data A supplied from the control device 10. For example, the sound emitting device 36 corresponds to a D / A converter that generates an analog signal from each piece of data A, an amplifier that amplifies a signal output from the D / A converter, and a signal that is amplified by the amplifier. Sound output devices (speakers and headphones) that output sound waves.

  The display control unit 12 is means for generating an image and displaying it on the display device 34. More specifically, the display control unit 12 causes the display device 34 to display the segment selection screen 51 and the reproduction state screen 53 illustrated in FIG.

  The segment selection screen 51 is an image for the user to select a segment P to be played back by the playback unit 16. The segment selection screen 51 includes a plurality of segment rows L corresponding to each music piece. The segment row L of one piece of music is obtained by horizontally arranging a plurality of rectangular symbols (hereinafter referred to as “segment symbols”) GP indicating the respective segments P of the song in the order of time series of each segment P in the song. It is an image arranged in the direction. The total length of each segment row L is different for each song according to the total number of the segments P in the song. A music title is arranged on the left side of each segment row L. The user can select any segment symbol GP in the segment selection screen 51 by appropriately operating the input device 32.

  The reproduction state screen 53 in FIG. 3 is an image for the user to confirm the state of reproduction of each segment P. The reproduction state screen 53 is composed of a work area 532 and an operation area 534. One or a plurality of element rings C are arranged in the work area 532. One element ring C is an image in which a plurality of circular symbols (hereinafter referred to as “unit symbols”) GU are arranged in an annular shape (on the circumference) at equal intervals.

  The element allocation unit 14 of FIG. 1 allocates the element P selected on the element selection screen 51 to one unit symbol GU as a reproduction target by the reproduction unit 16. The reproduction unit 16 sequentially reproduces the segment P assigned to each unit symbol GU in the order of arrangement of the unit symbols GU in the segment ring C. In the work area 532, an indicator D for instructing the user of the unit symbol GU corresponding to the segment P currently reproduced by the reproducing unit 16 among the unit rings C is arranged for each unit ring C. .

  In the operation area 534, a plurality of operators B (B1 to B5) are displayed. The user inputs various instructions to the playback device 100 by operating each operation element B using the input device 32 as appropriate. For example, when the operation element B1 is operated when the reproduction of each element P is stopped, the reproduction apparatus 100 is instructed to reproduce each element P, and the operation element B1 is operated during the reproduction of each element P. In this case, the playback apparatus 100 is instructed to stop playback.

  When the operator B2 is operated, the control device 10 is instructed to switch the display mode (first mode / second mode). Specific examples of each display mode will be described later. The operation element B3 is a part for instructing the control device 10 to create a new element ring C. The operation element B 4 is a part for deleting all the element rings C created in the work area 532. The operation element B5 is an image of a knob for the user to adjust the reproduction tempo T of each segment P.

<B: Operation>
Next, the operation of the playback apparatus 100 will be described. FIG. 4 is a flowchart showing the operation of the control device 10. The process in FIG. 4 is started when a predetermined operation is performed on the input device 32. As shown in the figure, the operation of the playback apparatus 100 includes the creation of a segment ring C (steps S2 to S4), the allocation of the segment P to each unit symbol GU (steps S6 to S8), It is roughly divided into reproduction of the piece P (step S10 to step S13).

  When the processing of FIG. 4 is started, the display control unit 12 displays the segment selection screen 51 and the reproduction state screen 53 on the display device 34 (step S1). However, since the element ring C has not been created at the time of step S1, the work area 532 of the reproduction state screen 53 is blank.

  Next, the control device 10 determines whether or not an operation for instructing creation of the element ring C (pressing of the operation element B3) has been given to the input device 32 (step S2). When the creation of the element ring C is instructed, the control device 10 variably sets the number of unit symbols GU constituting the new element ring C according to the instruction from the user (step S3). Then, as shown in part (A) of FIG. 5, the display control unit 12 instructs a unit ring C in which the unit symbols GU of the number set in step S3 are arranged in an annular shape and one unit symbol GU. The indicator D is displayed in the work area 532 of the reproduction state screen 53 (step S4). At the stage of step S4 (that is, the stage where no unit symbol GU is assigned to any unit symbol GU), all the unit symbols GU of the newly created segment ring C are initially selected in advance. Displayed in various ways. For example, as shown in part (A) of FIG. 5, all unit symbols GU of the element ring C are displayed in white. On the other hand, when the creation of the element ring C is not instructed (step S2: NO), the control device 10 proceeds to step S5 without passing through steps S3 and S4.

  The processing from step S2 to step S4 is repeated until at least one unit ring C is created (step S5: NO). When a new segment ring C is created (step S5: YES), the control device 10 determines whether or not the user has instructed the allocation of the segment P to each unit symbol GU (step S6). ). In the following, it is first assumed that one unit ring C is created in the work area 532.

  The user designates one of the unit symbols GP in the unit selection screen 51 and one of the unit symbols GU in the work area 532 of the playback state screen 53, thereby assigning the unit P to the playback device 100. Can be instructed. When the allocation of the segment P is instructed, the segment allocation unit 14 selects the segment P corresponding to the segment pattern GP selected by the user from the segment selection screen 51 from the work area 532. Corresponding to the unit symbol GU (step S7). The relationship between each segment row L (each music piece) and the segment ring C is arbitrary. For example, a plurality of segments P in one segment row L may be assigned to each unit symbol GU of one segment ring C, or a plurality of segments P in separate segment rows L may be assigned as one segment. You may assign to each unit symbol GU of the ring C. Further, one piece P may be assigned to a plurality of unit symbols GU.

  Next, the display control unit 12 changes the display mode of the unit symbol GU to which the segment P is allocated in step S7 according to the feature amount F of the segment P (step S8). More specifically, the display control unit 12 of this embodiment controls the hue of the unit symbol GU according to the feature amount F. In other words, the display control unit 12 associates the magnitude of the feature amount F with the arrangement of hues in order of wavelengths (Hue scale), and as shown in the part (B) of FIG. The hue of GU is controlled to a hue corresponding to the feature amount F of the segment P. For example, the unit symbol GU has a hue closer to red as the feature amount F increases, and the unit symbol GU has a hue closer to purple as the feature amount F decreases.

  On the other hand, when the assignment of the segment P is not instructed in step S6, the control device 10 proceeds to step S9 without passing through step S7 and step S8. In step S9, the control device 10 determines whether or not the segment P has been assigned to any unit symbol GU in the work area 532 (step S9). If no unit symbol GU is assigned to any unit symbol GU, the control device 10 shifts the process to step S2, and creates a segment ring C (steps S2 to S4) or the unit P. The assignment (step S6 to step S8) is repeated.

  When the segment P is assigned to one or a plurality of unit symbols GU (step S9: YES), the control device 10 performs an operation (depression of the operation element B1) for instructing the reproduction of the segment P to be started. It is determined whether or not it has been assigned (step S10). When the reproduction of the segment P is instructed, the reproducing unit 16 sequentially reproduces the segment P assigned to each unit symbol GU of the segment ring C in the order of arrangement of the unit symbols GU (step S11). .

  More specifically, the playback unit 16 sequentially selects each unit symbol GU in the counterclockwise direction of the segment symbol C, and acquires the segment data A of the segment P corresponding to the unit symbol GU from the storage device 20. And output to the sound emitting device 36. For the unit symbol GU to which no segment P is assigned, segment data A representing silence is output to the sound emitting device 36. The sound emitting device 36 emits a sound wave corresponding to the segment data A supplied from the reproducing unit 16. The period at which the reproduction unit 16 outputs each piece of data A is set according to the tempo T designated by the user through the operation of the operation element B5. Accordingly, the plurality of segments P selected by the user from the segment selection screen 51 are reproduced from the sound emitting device 36 at the tempo T.

  When the reproduction of each segment P is started as described above, the display control unit 12 causes the unit ring C to indicate the unit symbol GU corresponding to the segment P being reproduced by the reproduction unit 16. The relative relationship between the arrangement of the unit symbols GU and the indicator D is sequentially controlled as the reproduction proceeds (step S12). The contents of the control in step S12 differ depending on the display mode selected by the user in the operation on the operator B2.

  When the first mode is selected, the display control unit 12 fixes the indicator D to the initial position as shown in FIG. 6, while the unit symbol GU being reproduced by the reproducing unit 16 is the indicator D. A plurality of unit symbols GU of the element ring C are sequentially moved along each arrangement so as to overlap with each other. On the other hand, when the second mode is selected, the display control unit 12 fixes the position of each unit symbol GU of the element ring C as shown in FIG. The indicator D is sequentially moved along the arrangement of the plurality of unit symbols GU in the element ring C so that GU overlaps the indicator D.

  The processes in step S11 and step S12 are repeated until an operation for instructing the end of reproduction (depressing the operation element B1) is given to the input device 32 (step S13: NO). As described above, the reproduction of each segment P proceeds sequentially, and when the reproduction is completed for all the unit symbols GU of one segment ring C, the reproduction unit 16 immediately after the reproduction is instructed in step S10. The reproduction is repeated in order from the segment P corresponding to the first unit symbol GU selected in (1). In other words, the arrangement of the plurality of segment P selected by the user for one segment ring C is cyclically reproduced.

  When reproduction is not instructed in step S10 and when reproduction is instructed in step S13, the control device 10 performs an operation (depression of the operator B4) for instructing deletion of the element ring C in the input device 32. It is determined whether or not it has been assigned (step S14). When deletion of the element ring C is instructed, the control device 10 cancels the assignment of the element P to each unit symbol GU and deletes all the element rings C from the work area 532 (step S15).

  When the process of step S15 is completed and when the result of step S14 is negative, the control device 10 moves the process to step S2. A plurality of segment rings C are created in the work area 532 by repeating the creation of the segment rings C in steps S2 to S4. Then, for each of the plurality of element rings C, the assignment of the element P to the unit symbol GU (step S7) and the control of the mode of each unit symbol GU (step S8) are executed in the same manner as described above. FIG. 3 shows a display example of the display device 34 when the assignment of the segment P to the unit symbol GU for a plurality of segment rings C is completed.

  When a plurality of unit rings C are created as described above, the reproducing unit 16 parallelizes the unit P assigned to the unit symbol GU of each unit ring C for a plurality of unit rings C in step S11. And play it. That is, the playback unit 16 selects unit symbols GU from each of the plurality of unit rings C in the order of arrangement for each time corresponding to the tempo T specified by the user, and assigns them to each of the selected plurality of unit symbols GU. The segment data A of the segment P obtained is acquired from the storage device 20 and output in parallel to the sound emitting device 36. Therefore, a plurality of sequences each composed of a segment P assigned to another segment ring C are reproduced in parallel at a common tempo T.

  As described above, in this embodiment, since the plurality of unit symbols GU to which the segment P is assigned are arranged in a ring shape, the user can intuitively recognize repetitive reproduction of the plurality of segments P. There is an advantage. Further, since the indicator D indicating the unit symbol GU being reproduced is displayed, the user can easily confirm the actual reproduction time point. In addition, the user can arbitrarily specify the first mode in which the arrangement of the plurality of unit symbols GU moves relative to the indicator D and the second mode in which the indicator D moves relative to the arrangement in the plurality of unit symbols GU. Therefore, it is easier to check the playback time by selecting a display mode that suits the user's preference.

  In addition, since the segment P to be reproduced and the unit symbol GU to which the segment P is allocated are arbitrarily selected according to the operation on the input device 32, various musical sounds that suit the user's preference are reproduced. It becomes possible to do. In addition, when a plurality of unit rings C are created, the time series of the unit P corresponding to each unit ring C is reproduced in parallel, so that only one unit ring C can be created. A variety of musical sounds can be played. In addition, since the segment symbol GP corresponding to the segment P that is a candidate for selection by the user is arranged in time series for each piece of music on the segment selection screen 51, the user can easily obtain the desired segment symbol GP. Can be selected.

  Since the total number of unit symbols GU constituting the element ring C is arbitrarily selected, it is possible to generate a reproduction sound having a desired rhythm. Further, since the total number of unit symbols GU is set for each unit ring C, a plurality of systems in which the unit P is reproduced at different rhythms by making the total number of unit symbols GU of each unit ring C different. It is possible to generate a variety of reproduced sounds (polyrhythms) in which the musical sounds are mixed.

<C: Modification>
Various modifications as exemplified below can be added to the above embodiment. Two or more aspects may be arbitrarily selected from the following examples and combined.

(1) Modification 1
In the above embodiment, the hue of the unit symbol GU is controlled according to the feature amount F of the segment P, but the control target according to the feature amount F is not limited to the color. For example, the configuration in which the size, shape, or position of the unit symbol GU (the radial position of the element ring C) is changed according to the feature amount F, or the brightness or saturation of the unit symbol GU is changed according to the feature amount F. The structure to be made is also suitable. For example, the intensity of the high frequency component of the musical tone in the segment P is defined as a feature amount F. The higher the intensity of the high frequency component, the closer the unit symbol GU becomes to a triangle, and the lower the intensity of the high frequency component, the circular the unit symbol GU. The total number of sides (total number of corners) of the unit symbol GU may be controlled according to the feature amount F so as to approach.

  A configuration in which a mark (character, figure, or symbol) corresponding to the segment P is added to the unit symbol GU is also suitable. For example, a configuration in which a code (for example, a song name) for identifying a song including the segment P and the number of the segment P in the song are added to the unit symbol GU and displayed on the display device 34, or a musical tone of the segment P A configuration in which the name and design of the musical instrument that outputs the signal is added to the unit design GU and displayed on the display device 34 is preferably employed.

  Further, a configuration in which a plurality of feature amounts F for one unit P is stored in the storage device 20 and a plurality of types of aspects of the unit symbol GU are individually controlled according to each feature amount F is also preferable. For example, the hue of the unit symbol GU is controlled according to the first feature amount F, the shape of the unit symbol GU is controlled according to the second feature amount F, and the unit symbol GU according to the third feature amount F. For example, the brightness is controlled.

(2) Modification 2
The correspondence relationship between the unit symbol GU and the segment P is not limited to the above examples. For example, in the above embodiment, one unit P is assigned to one unit symbol GU in the unit ring C, but a plurality of unit P may be associated with one unit symbol GU. More specifically, a configuration in which the arrangement of the unit symbols GU is hierarchically displayed is preferably employed. For example, it is assumed that a plurality of segments P are assigned to the unit symbol GU_a of the segment ring C illustrated in FIG. When the reproduction unit 16 selects the unit symbol GU_a as a reproduction target, the display control unit 12 displays the element ring C2 in the vicinity of the unit symbol GU_a. The element ring C2 is an image in which a plurality of unit symbols GU2 corresponding to each element P assigned to the unit symbol GU_a are arranged in an annular shape. Also for the element ring C2, the control of the mode of each unit symbol GU2 (step S8 in FIG. 4) and the instruction by the indicator D2 (step S12 in FIG. 4) are executed in the same manner as the element ring C.

  In the above embodiment, the segment P selected by the user is fixedly assigned to each unit symbol GU. However, a configuration in which the segment P corresponding to each unit symbol GU is changed over time is also employed. . For example, a period in which the control device 10 is equipped with means for selecting another segment P having a similar feature amount F to the segment P assigned to the unit symbol GU from the storage device 20, and each segment P is reproduced. The unit P assigned to each unit symbol GU is replaced with another unit P similar to the unit P at every predetermined time (or triggered by an operation on the input device 32). According to the above configuration, the musical sound reproduced from the sound emitting device 36 can be variously changed over time.

(3) Modification 3
A configuration is also employed in which the user can audition the segment P corresponding to the segment symbol GP before determining the segment P to be assigned to the unit symbol GU. That is, when the user designates any of the segment symbols GP in the segment selection screen 51 with the input device 32, the control device 10 (reproducing unit 16) causes the segment P to correspond to the segment symbol GP. The piece data A is output to the sound emitting device 36. Similarly, it is also preferable that the user can audition the segment P assigned to each unit symbol GU prior to the reproduction of the plurality of segments P. That is, when the user selects the unit symbol GU to which the segment P has already been assigned by the input device 32, the control device 10 (reproducing unit 16) outputs the segment data A of the segment P to the sound emitting device 36. To do. According to the above configuration, the user can select the segment P while confirming the actual reproduction sound of each segment P at any time. Therefore, it is possible to easily create an array of the pieces P having a desired atmosphere.

(4) Modification 4
In the above embodiment, a plurality of unit symbols GU are arranged at equal intervals in the segment ring C. However, the position of the unit symbols GU may be adjusted according to the rhythm of reproduction of each segment P. For example, it is preferable that the unit symbol GU be moved in the circumferential direction of the segment ring C from the reference position so that the reproduction timing of the segment P corresponding to the unit symbol GU is changed. That is, when the user operates the input device 32 to move the unit symbol GU clockwise from the reference position, the control device 10 (reproducing unit 16) reproduces the segment P assigned to the unit symbol GU. When the timing is advanced in accordance with the movement amount of the unit symbol GU and the unit symbol GU is moved counterclockwise from the reference position, the control device 10 determines the reproduction timing of the segment P assigned to the unit symbol GU. Delay is performed according to the amount of movement of GU. According to the above configuration, there is an advantage that a complicated rhythm can be easily created while visually recognizing each unit symbol GU.

(5) Modification 5
The form of the indicator D is arbitrary. For example, an image (for example, an image showing a state in which the unit symbol GU is flipped) that is emphasized by making the mode of the unit symbol GU being reproduced different from the mode of other segment symbols GP is used as the indicator D. A configuration in which the GU is displayed in an overlapping manner or a configuration in which an arrow indicating the unit symbol GU being reproduced is displayed as an indicator D in the vicinity of the unit symbol GU is also employed.

  In addition, an indicator that indicates the segment symbol GP corresponding to the segment P being reproduced by the reproducing unit 16 among the plurality of segment symbols GP displayed on the segment selection screen 51 is displayed on the segment selection screen 51. This configuration is also suitable. As the indicator designating the unit symbol GP, as in the above-mentioned indicator D, an image (for example, each unit segment) in which the mode of the segment symbol GP being reproduced is different from the other unit symbols GP. An image having a color different from that of the design GP) and an image of an arrow indicating the segment design GP being reproduced are employed.

(6) Modification 6
In the above embodiment, the sequence of segment P corresponding to each of the plurality of segment rings C is reproduced at a common tempo T. However, the playback tempo of the segment P is individually set for each segment ring C. May be. By controlling the tempo for each unit ring C, it is possible to generate complicated and diverse reproduced sounds.

(7) Modification 7
In the above embodiment, the segment P of each musical piece is adjusted to an equivalent time length, but each segment P may be used as it is in the original musical piece. In the configuration in which the time length of each segment P is varied, the time length of the segment P to be reproduced is shorter than the reproduction cycle of the segment data A (time length according to the tempo T). For example, a configuration is adopted in which the section from the end of the reproduction of the segment data A of the segment P to the start of the reproduction of the next segment data A is silenced. In addition, when the time length of the segment P to be reproduced is longer than the period of reproduction, the segment data A of the segment P that exceeds the period of reproduction and the next segment data A For example, a configuration of cross-fading is adopted.

(8) Modification 8
In the above embodiment, the playback apparatus 100 is used for playing back musical sounds, but the playback apparatus 100 is also used for playing back moving images. That is, a plurality of sections obtained by dividing a moving image (time series of a plurality of still images) on the time axis are defined as segment P, and segment data A representing still images in each segment P and features of the segment P The amount F (for example, brightness or spatial frequency) is stored in the storage device 20 for each moving image. The generation of the element ring C (steps S2 to S4 in FIG. 4) and the assignment of the element P to each unit symbol GU (steps S6 to S8 in FIG. 4) are the same as those described above. The reproduction unit 16 sequentially outputs the segment data A of the segment P corresponding to the unit symbol GU to the display device 34 in the order of arrangement of the unit symbols GU in the segment ring C. The display device 34 displays the image represented by the segment data A in an area different from the segment selection screen 51 and the playback state screen 53. According to the above configuration, the visual effect similar to that of a video jockey (VJ) can be obtained by sequentially displaying the image of each segment P. In addition, the structure which displays the image of each segment P in unit symbol GU is also employ | adopted.

It is a block diagram which shows the structure of the reproducing | regenerating apparatus which concerns on embodiment of this invention. It is a conceptual diagram for demonstrating the segment of a music. It is a conceptual diagram which shows the example of a display by a display apparatus. It is a flowchart which shows operation | movement of a control apparatus. It is a conceptual diagram for demonstrating creation of a segment ring and allocation of a segment. It is a conceptual diagram which shows the example of a display of the segment ring during reproduction | regeneration (1st mode). It is a conceptual diagram which shows the example of a display of the segment ring during reproduction | regeneration (2nd mode). It is a conceptual diagram which shows the example of a display of the element ring which concerns on a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Playback apparatus, 10 ... Control apparatus, 12 ... Display control part, 14 ... Segment allocation part, 16 ... Playback part, 20 ... Memory | storage device, 32 ... Input device, 34 ... Display apparatus 36 …… Sound emitting device, P …… Segment, A …… Segment data, F …… Feature quantity, 51 …… Segment selection screen, 53 …… Reproduction status screen, 532 …… Work area, 534… ... Operation region, GP..., Element symbol, L... Element string, B (B1 to B5)... Operator, C.

Claims (7)

Storage means for storing segment data representing sound or image for each of the plurality of segments;
Display control means for displaying a unit ring in which a plurality of unit symbols are arranged in a ring shape on a display device;
A segment assignment means for assigning a segment to each unit symbol;
A playback device comprising: playback means for playing back the piece data of the pieces assigned to the unit symbols in the order of the arrangement of the plurality of unit symbols in the piece ring. The storage means stores sound or image feature quantities for each of the plurality of segments.
The playback apparatus according to claim 1, wherein the display control unit displays the unit symbol to which the segment allocation unit has allocated the segment on the display device in a mode corresponding to the feature amount of the segment. The display control means displays a pointer indicating a unit symbol at a predetermined position of the display device, and the pointer indicates a unit symbol corresponding to the segment being reproduced by the reproducing means. The playback device according to claim 1 or 2, wherein a plurality of unit symbols are moved along each array. The display control means displays an indicator indicating a unit symbol on the display device, and displays the indicator so that the indicator indicates a unit symbol corresponding to the segment being reproduced by the reproducing means. The playback device according to claim 1 or 2, wherein the playback device is moved along an arrangement of a plurality of unit symbols. The display control means displays a plurality of element rings on the display device,
The unit allocation means allocates a unit to each unit symbol in each of the plurality of unit rings,
The reproducing means performs parallel processing on the plurality of unit rings in the order of arrangement of the unit symbols in the unit ring, in correspondence with the unit symbols corresponding to the unit symbols in each of the plurality of unit rings. The playback device according to claim 1, wherein the playback device is played back. The display control means displays, on the display device, a segment row in which a plurality of segment symbols corresponding to each segment into which a song is divided is arranged for each song,
The unit allocation means allocates a unit corresponding to a unit symbol designated by a user from among the plurality of segment sequences to the unit symbol designated by the user. Playback device. A computer comprising storage means for storing segment data representing sound or image for each of the plurality of segments;
Display control processing for displaying a unit ring in which a plurality of unit symbols are arranged in a ring shape on a display device;
A segment assignment process for assigning a segment to each unit symbol;
A reproduction process for reproducing the segment data of the segments allocated to each unit symbol in the order of the arrangement of the plurality of unit symbols in the segment ring.

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