WO2007102388A1 - 情報再生装置及び方法、並びにコンピュータプログラム - Google Patents
情報再生装置及び方法、並びにコンピュータプログラム Download PDFInfo
- Publication number
- WO2007102388A1 WO2007102388A1 PCT/JP2007/053878 JP2007053878W WO2007102388A1 WO 2007102388 A1 WO2007102388 A1 WO 2007102388A1 JP 2007053878 W JP2007053878 W JP 2007053878W WO 2007102388 A1 WO2007102388 A1 WO 2007102388A1
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- WIPO (PCT)
- Prior art keywords
- playback
- loop
- content data
- reproduction
- data portion
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
- H04N5/783—Adaptations for reproducing at a rate different from the recording rate
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/005—Reproducing at a different information rate from the information rate of recording
- G11B27/007—Reproducing at a different information rate from the information rate of recording reproducing continuously a part of the information, i.e. repeating
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
- G11B2020/10944—Real-time recording or reproducing, e.g. for ensuring seamless playback of AV data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
Definitions
- the present invention relates to an information reproducing apparatus and method for DJ equipment and the like, and a computer program for causing a computer to function as such an information reproducing apparatus.
- two or more information reproducing apparatuses are used to continuously reproduce the beats (in other words, beats) of the music reproduced by each information reproducing apparatus while matching the positions, intervals, strengths, and the like.
- beats the beats
- two or more songs can be played as if they were connected together, or two or more songs can be superimposed and played.
- multiple music can be played continuously or simultaneously without making the viewer feel uncomfortable.
- Such an operation is generally called a mixing operation.
- Such random reproduction, mixing reproduction, and the like are executed by, for example, a user rotating the jog dial.
- a typical example of an information reproducing apparatus having a jog dial is a DJ (Disc Jockey) device.
- an optical disc playback apparatus that can repeatedly perform playback without interrupting playback even during a search operation (see Patent Document 1).
- This optical disk playback device includes a first memory and a second memory, and after the playback of the content stored in the second memory is finished, the playback of the content stored in the first memory is started.
- Repetitive During repeated playback operations that is, pickup power content
- Patent Document 1 Japanese Patent Application Laid-Open No. 7-65506
- An object of the present invention is to provide an operation device and a reproduction device that make it possible to perform seamless repeated reproduction, for example.
- the information reproducing apparatus of the present invention includes a reproducing unit that reproduces content data including video data and audio data, and a reproduction start of a content data portion that is at least a part of the content data.
- a designation unit for designating a time and a reproduction end time, and the reproduction unit is controlled so that the content data portion is loop reproduced after the reproduction start time and the reproduction end time are designated by the designation unit.
- content data including, for example, video and audio can be reproduced by the operation of the reproducing means.
- the reproduction start time and the reproduction end time of the content data portion that is at least part of the content data are designated by the operation of the designation means.
- the playback start time that is, the playback start position
- playback end time that is, the playback end position
- the playback direction of the video data in the content data portion is reversed at the end of loop playback of the content data portion (in other words, at the start and end).
- the second control means forward reproduction of video data in the content data portion (that is, reproduction directed in the forward direction along the reproduction time axis of the content data).
- the reverse playback of the video data in the content data portion that is, the playback time axis of the content data is set at the end of the loop playback specified by the playback start time and the playback end time).
- the playback is performed in the opposite direction.
- the video data in the content data portion is reversely played, the video data in the content data portion is forwarded at the end of the loop playback specified by the playback start time and the playback end time. Playback is performed.
- the first control means and the second control After the video of the person walking forward from the left edge of the screen toward the right edge is played by the action of the means, the video of the person walking backwards with the right edge force of the screen also directed toward the left edge Is played.
- the left edge force of the screen is directed toward the right edge again, and the image of the person walking forward is reproduced. As long as loop playback is performed, this video is played back repeatedly.
- the playback position of the audio data in the content data portion is set to the playback start time at the end of the loop playback of the content data portion. More specifically, when forward playback of audio data in the content data portion is performed by the operation of the third control means, the end of the loop playback specified by the playback end time The playback position of the audio data in the content data portion is set as the playback start time. As a result, the forward reproduction is performed again from the reproduction start time on the audio data in the content data portion that has been reproduced until the reproduction end time. For this reason, the audio data in the content data portion is reproduced in the forward direction along the reproduction time axis without being reversely reproduced. As long as loop playback is performed, this sound is played back repeatedly.
- the information reproducing apparatus of the present invention since the reproduction direction of the video data is reversed at the end of the loop reproduction, particularly the seamless reproduction of the video can be realized. Therefore, the user can reproduce or view a video without a sense of incongruity where the flow of the video does not stop unnaturally. In other words, seamless loop playback can be realized.
- loop playback is performed without reversing the playback direction for audio
- audio may be unnaturally played during loop playback (specifically, reverse playback). Disappear. Therefore, the user can perform the audio loop reproduction without unnaturally reversing the audio flow. In other words, it is possible to play or view seamless or uncomfortable sound.
- the video data and the audio data in the content data portion can be loop-reproduced asynchronously (in other words, independently of each other). Therefore, the content data portion including each of the video data and the audio data can be loop-played seamlessly or without a sense of incongruity.
- any content data portion in the content data to be played back in real time can be extracted, the user can perform loop playback on the desired content data portion at any timing.
- the content data portion is extracted as the primary material, it is possible to perform another effect processing for the content data portion while performing loop reproduction of the content data portion. .
- the content data portion extracted as the primary material can be used to reproduce the content data portion as a secondary material with effect processing. Therefore, the content data portion (or content data) can be reproduced in a more specific manner or in a manner that attracts the viewer's interest.
- the second control unit includes the reproduction start time, the reproduction end time, and an intermediate time as loop playback end portions, which are included in the content data portion.
- the reproduction means is controlled so as to reverse the reproduction direction along the time axis of the video data.
- the audio data is forward-reproduced. That is, it is possible to make the playback period of the video data coincide with the playback period of the audio data.
- the second control means is configured such that the reproduction end is performed when the video data is forward reproduced toward the reproduction start time and the reproduction end time.
- the playback means is controlled to reverse-play the video from the playback end time to the playback start time, and the video data from the playback end time to the playback start time.
- the playback means is controlled to forward-play the video data from the playback start time to the playback end time after the playback start time has elapsed.
- Another aspect of the information reproducing apparatus of the present invention further includes a stopping means for stopping loop reproduction of the content data portion.
- loop reproduction can be started at an arbitrary timing or stopped at an arbitrary timing.
- loop playback is not performed, normal playback of content data is performed.
- Another aspect of the information reproducing apparatus of the present invention further comprises storage means for storing the content data portion.
- the content data portion stored in storage means such as a memory can be used when performing loop reproduction.
- storage means such as a memory
- the processing load of the information reproducing apparatus can be relatively reduced.
- the content data portion extracted as the primary material can be used as a secondary material with the effect processing as a secondary material. Can be played.
- Another aspect of the information reproducing apparatus of the present invention comprises an input means for accepting an external input for designating the reproduction mode of the content data, while loop reproduction is performed under the control of the first control means. And fourth control means for controlling the reproduction means to reproduce the content data portion in a manner corresponding to an external input accepted by the input means.
- Another aspect of the information reproducing apparatus of the present invention is such that a predetermined effect process is not applied to the content data portion while loop reproduction is performed under the control of the first control means. Further comprising fifth control means for controlling the reproducing means so as to reproduce the data.
- an information reproduction method of the present invention includes reproduction means for reproducing content data including video data and audio data, and a small amount of the content data.
- An information reproducing method in an information reproducing apparatus comprising: designation means for designating a reproduction start time and a reproduction end time of at least a part of the content data portion, wherein the reproduction means sets the reproduction start time and the reproduction end time by the designation means. After the content data portion is designated, the first control step for controlling the playback means so as to loop-play the content data portion, and the loop playback end portion of the content data portion, to the content data portion.
- the information reproducing method of the present invention can also adopt various aspects.
- a computer program of the present invention is a computer program for reproduction control for controlling a computer provided with the above-described information reproduction apparatus of the present invention (including various aspects thereof).
- the computer is caused to function as at least part of the first control means, the second control means, and the third control means.
- the computer program of the present invention is read from a recording medium such as a ROM, CD-ROM, DVD-ROM, hard disk or the like storing the computer program and executed by the computer, or If the computer program is downloaded to a computer via communication means and then executed, the information reproducing apparatus of the present invention described above can be realized relatively easily.
- a recording medium such as a ROM, CD-ROM, DVD-ROM, hard disk or the like storing the computer program and executed by the computer, or If the computer program is downloaded to a computer via communication means and then executed, the information reproducing apparatus of the present invention described above can be realized relatively easily.
- the computer program of the present invention can also adopt various aspects.
- a computer program product in a computer-readable medium can be executed by a computer provided in the above-described information reproducing apparatus of the present invention (including various aspects thereof).
- Computer program instructions are clearly embodied and the computer Is caused to function as at least a part of the first control means, the second control means, and the third control means.
- the computer program product of the present invention if the computer program product is read into a computer from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product, or
- a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product
- the computer program product which is a transmission wave
- the computer program product which is a transmission wave
- the computer program product may include a computer readable code (or computer readable instruction) that functions as the information reproducing apparatus of the present invention described above.
- the computer program product of the present invention can also adopt various aspects.
- the reproducing device As described above, according to the information reproducing apparatus of the present invention, the reproducing device, the specifying device, the first control device, and the second control device are provided.
- the information processing method includes a first control process and a second control process.
- the computer According to the computer program of the present invention, the computer is caused to function as the information reproducing apparatus of the present invention. Therefore, seamless repeated playback can be performed.
- FIG. 1 is a block diagram conceptually showing the basic structure of an optical disc reproducing apparatus in an example.
- FIG. 2 is a plan view conceptually showing the outer appearance of the operation unit, in particular, of the optical disk reproducing apparatus according to the embodiment.
- FIG. 3 is a flowchart conceptually showing a flow of a first operation example when the optical disc reproducing apparatus in the example performs loop reproduction.
- FIG. 4 is a timing chart conceptually showing a content data portion specified by a loop in point and a loop out point.
- FIG. 5 is a timing chart conceptually showing a playback position when loop playback is performed according to the first operation example, and a video display when loop playback is performed according to the first operation example. It is a top view which shows an aspect notionally.
- FIG. 6 is a timing chart conceptually showing a playback position when loop playback according to a modification is performed.
- FIG. 7 is another timing chart conceptually showing a playback position when loop playback according to a modification is performed.
- FIG. 8 is a flowchart conceptually showing a flow of a second operation example when the optical disc reproducing apparatus according to the example performs loop reproduction.
- FIG. 9 is a timing chart conceptually showing a playback position when loop playback according to the second operation example is performed.
- FIG. 10 is a waveform diagram conceptually showing a sound waveform when loop playback is performed according to a second operation example.
- FIG. 11 is a timing chart conceptually showing a playback position when loop playback is performed according to a second operation example.
- FIG. 1 is a block diagram conceptually showing the basic configuration of the optical disk reproducing apparatus according to the present embodiment
- FIG. 2 conceptually shows the appearance of the operation unit in the optical disk reproducing apparatus according to the present embodiment.
- the optical disc playback apparatus 1 includes an optical pickup (PU: Pick Up) 10 and an RF
- the optical pickup 10 is configured such that it can be moved in the radial direction of the optical disc 100 according to a tracking error signal by an actuator, a slider, etc. (not shown) driven by the control of the servo mechanism 13.
- the focus is controlled by changing the focus of the laser beam LB in accordance with the focus error signal under the control of the servo mechanism 13.
- the spindle motor 12 is configured to rotate the optical disc 100 at a predetermined speed while receiving spindle servo from the spindle servo circuit 18.
- the content data decoding unit 15 generates a stream signal including a video stream and an audio stream by decoding the RF signal output from the RF amplifier 11. Generated The stream signal thus output is output to the decoding unit 16.
- the video memory 22 temporarily stores the video signal input from the decoding unit 16, and then outputs the video signal to an external output device such as a display through the external output terminal 19 at a desired timing.
- An external output device such as a display displays video according to the video signal.
- the nother memory 24 temporarily buffers a reproduction signal generated by decoding the stream signal in the decoding key unit 16.
- a video signal and an audio signal may be directly output from the decoding key unit 16 to the video memory 22 and the audio memory 23, and a video signal and an audio signal once stored in the buffer memory 24 may be output from the decoding key unit 16. It is output via.
- the playback signal may be modulated with a sawtooth wave, the playback signal may be modulated with a rectangular wave, or the playback signal may be doppler effect, for example.
- the playback signal may be modulated with a special waveform simulating jet sound, for example, the playback signal may be modulated with a special gun sound. Modulation by a waveform may be performed, or modulation by various special waveforms preset by the user or the like may be performed. These modulations are preferably performed by a user operating an operation key (not shown in the operation unit 40).
- the control data decoding unit 17 decodes the RF signal output from the RF amplifier 11. To generate control data for controlling the playback of the content data.
- the control data includes, for example, TOC data recorded in the lead-in area of the optical disc 100, synchronization data recorded in the stream signal, and time passage information when content data is played back.
- One specific example is sub-code data.
- the generated control data is output to the system controller 20 and used to control the reproduction of the content data.
- the spindle servo circuit 18 detects an error in the synchronization data with respect to the rotation speed of the spindle motor 12 instructed by the system controller 20, and feedback-controls the rotation of the spindle motor 12 so as to suppress the occurrence of the error. .
- the system controller 20 includes a microprocessor (MPU), and executes a system program (or firmware, etc.) that is set in advance to centrally control the operation of the entire optical disc reproducing apparatus 1.
- MPU microprocessor
- firmware firmware, etc.
- the memory 21 includes a RAM area for temporarily storing various data necessary for the operation of the optical disc playback apparatus 1, a ROM area for storing a system program for defining the operation of the system controller 20, and the like. Prepare.
- an operation unit 40 and a display unit 50 are connected to the system controller 20.
- the instruction data from the various operation keys provided in the operation unit 40 is stored in the system controller 2
- the system controller 20 controls the reproduction of the content data according to the instruction data. Further, the system controller 20 controls the display operation on the display unit 50.
- the operation unit 40 includes a jog diamond 41, a pulse counter 42, a tempo slider 43, an A / D converter 44, and a display unit 50.
- the jog dial 41 is a disk-shaped operation key that is rotatable in both directions.
- forward playback and reverse playback can be set according to the rotation direction, and further, a speaker or the like can be set according to the rotation speed. Now you can change the tone of the music played on the headphones!
- the above-described forward playback is an easy way to rotate an analog record such as LP in the forward direction.
- the content data on the optical disc 100 is played in the order in which it is recorded. Therefore, music or the like is reproduced as a normal sound as the jog dial 41 is rotated in the clockwise direction. Further, in this embodiment, forward playback is performed even when the jog dial 41 is stopped.
- the content data on the optical disc 100 is reversed in the order in which they are recorded, as in the case of playing music or the like by rotating the analog record in the reverse direction.
- music is recorded continuously in analog records (analog recording), so if you rotate the analog record in the reverse direction, the music will play in the reverse direction, which is different from the original music.
- the jog dial 41 is rotated counterclockwise, individual content data digitally recorded on the optical disc 100 is reproduced in the reverse order, so that It is designed to produce onomatopoeia similar to that produced when an analog record is rotated in the reverse direction.
- the pulse counter 42 detects the rotational speed (or angular velocity) of the jog dial 41 by counting the pulse width (or the number of pulses, etc.) of pulses generated as the jog dial 41 is rotated.
- the direction of rotation of the jog dial 41 is detected based on the pulse generated by the rotation operation of the jog dial 41.
- the detected rotation direction and rotation speed of the jog dial 41 are output to the system controller 20.
- the system controller 20 recognizes the operation amount of the jog dial 41 operated by the user or the like, and performs an event processing or the like corresponding to the operation amount.
- the tempo slider 43 includes, for example, a slider button that can slide up and down! .
- the user or the like can change the playback speed of the content data as appropriate by moving the slider button up and down. For example, by moving the slider button upward, the content data playback speed is relatively slow, or by moving the slider button downward, the content data playback speed is relatively fast. can do.
- the movement amount of the slider button is detected as an analog value corresponding to the movement amount and output to the AZ D converter 44.
- the AZD converter 44 converts the amount of movement of the slider button included in the tempo slider 43 detected as an analog value into a digital value, and then outputs it to the system controller 20. As a result, the system controller 20 can make the reproduction speed of the content data relatively fast or relatively slow according to the amount of movement of the slider button.
- the display unit 50 displays various information associated with the reproduction of content data.
- the display unit 50 includes a display panel such as a liquid crystal display or a fluorescent tube, and displays various types of information under the control of the system controller 20.
- the appearance of the operation unit 40 includes a jog dial 41, an operation button 402, a tempo slider 43, a loop in point designation button 411, a loop end point designation button 412, and loop playback.
- a start Z stop button 413, an effect-equipped button 414, and a display unit 50 are provided.
- the operation button 402 is a button that can be pressed by the user, and is configured so that the operation of the optical disc playback apparatus 1 can be changed when the user presses the operation button 402. Specifically, the user can instruct to play, fast forward, rewind, pause, start playback from a predetermined cue point, etc. by pressing the operation button 402.
- the loop in point designation button 411 constitutes a specific example of the "designating means" in the present invention, and is a loop in point (in other words, a reproduction start time or a reproduction start) for performing loop reproduction described later. (Position) can be specified. If the user presses the loop-in point designation button 411 during playback of the content data, the playback time when the user presses the button is designated as the loop-in point.
- the loop out point designation button 412 is a specific example of "designating means" in the present invention.
- the loop out point (in other words, the playback end time or the playback end position) for performing loop playback, which will be described later, can be specified. If the user presses the loop out point designation button 412 during playback of the content data, the playback time when the user presses the button is designated as the loop out point.
- the loop playback start Z stop button 413 constitutes a specific example of the "stop means" in the present invention, and starts the loop playback of the content data portion specified by the loop in point and the loop out point and It is configured to be able to instruct a stop. Start loop playback when loop playback is not in progress If the Z stop button 413 is pressed, loop playback starts. On the other hand, if loop playback start Z stop button 413 is pressed while loop playback is being performed, loop playback is stopped and normal playback of content data is performed.
- the effect addition button 414 is a button that is pressed when further special effect processing is performed on the content data portion being loop-reproduced.
- the display unit 50 displays various types of information according to the reproduction of content data including music. For example, in the upper part of the display unit 50, the track number of the currently reproduced content data, the elapsed time of the currently reproduced content data (that is, the current playback time), and the current optical disk playback device 1 are loaded. The total number of tracks of content data recorded on the optical disc 100 is displayed. In the example shown in FIG. 2, the content data of track No. 3 is currently being played back, 1 minute and 15 seconds have passed since the start of playback, and further recorded on the optical disc 100 loaded on the optical disc playback apparatus 1. It can be recognized that the total number of tracks in the content data is “16”.
- the beat density and the like of the content data along the reproduction time axis are wave-displayed.
- the signal intensity for each frequency band of the content data currently being played may be displayed in waves.
- the display content on the display unit 50 shown in FIG. 2 is a specific example, and other various information may be displayed.
- FIG. 3 is a flowchart conceptually showing a flow of the first operation example when the optical disc reproducing apparatus 1 according to the present embodiment performs loop reproduction.
- the loop in point is designated using the loop in point designation button 411 (step S101).
- a loop out point is designated using the loop out point designation button 412 (step S102).
- step S103 it is determined whether or not the current playback mode is a loop playback mode. More specifically, it is determined whether or not the loop playback start Z stop button 413 is pressed when loop playback is not being performed. Start loop playback when loop playback is not being performed If Z stop button 413 is pressed, or if loop playback continues, the current playback mode is the loop playback mode. Judged. On the other hand, when the loop playback is not performed, the loop playback start Z stop button 413 is pressed, or if the loop playback is performed, the loop playback start Z stop button 413 is When pressed, it is determined that the current playback mode is not the loop playback mode.
- step S103 If the result of determination in step S103 is that the current playback mode is not loop playback mode (step S103: No), the content is played without loop playback or after loop playback is stopped. Normal playback of data continues.
- step S103 determines whether the current playback mode is the loop playback mode (step S103: Yes).
- step S104 determines whether the current playback mode is the loop playback mode.
- step S105 when loop playback of the content data portion is being performed, it is determined whether or not the playback direction of the content data portion is the forward direction (step S105). More specifically, the direction from the loop in point to the loop out point If the content data part is played in the forward direction of the raw time axis, it is determined that the playback direction of the content data part is the forward direction. On the other hand, if the content data portion is played in the reverse direction of the playback time axis that is directed from the loop-out point to the loop-in point, the playback direction of the content data portion is not the forward direction (that is, in the reverse direction). Is determined).
- step S105 If the result of determination in step S105 is that the playback direction of the content data portion is the forward direction (step S105: Yes), then the playback position of the content data portion is looped out. It is determined whether or not the force has reached the point (step S106).
- step S106 If the result of determination in step S106 is that the playback position of the content data portion has not reached the loop-out point (step S106: No), the process returns to step S103, and after step S103. The process is continued.
- step S106 determines whether the playback position of the content data portion has reached the loop-out point. If the result of determination in step S106 is that the playback position of the content data portion has reached the loop-out point (step S106: Yes), control of the system controller 20 is performed. Below, the playback direction of the content data portion is reversed to the reverse direction (step S107). More specifically, if the loop-out point is reached while the content data portion is being played in the forward direction, the content data portion is subsequently played in the reverse direction from the loop-out point to the loop-in point. The
- step S105 determines whether or not the playback direction of the content data portion is the forward direction (step S105: No). If it is determined in step S105 that the playback direction of the content data portion is not the forward direction (step S105: No), then the playback position of the content data portion is the loop-in point. It is determined whether or not the force has reached (step S108).
- step S108 If the result of determination in step S108 is that the playback position of the content data portion has not reached the loop-in point (step S108: No), the process returns to step SI03, and step S103 The following processing is continued.
- step S108 if it is determined that the playback position of the content data part has reached the loop-in point! / (Step S108: Yes), the system Under the control of the video controller 20, the playback direction of the content data portion is reversed to the forward direction (step S109). More specifically, if the loop data reaches the loop in point while playing the content data part in the reverse direction, the content data part is subsequently transferred from the loop in point to the loop out point in the forward direction. Played.
- FIG. 4 is a timing chart conceptually showing the content data portion specified by the loop-in point and the loop-out point
- FIG. 5 is a diagram showing the loop reproduction according to the first operation example
- FIG. 6 is a timing chart conceptually showing a playback position when the video is being played, and a plan view conceptually showing a video display mode when loop playback is being performed according to the first operation example.
- the content data portion to be loop-reproduced is specified by the loop-in point and the loop-out point in the entire content data.
- video A is displayed with the character's face displayed at the top left of the display screen, etc.
- the character's face is displayed at the bottom right of the display screen, etc.
- Video C to be displayed is played back, and video B in which the face of the character is displayed in the middle of the display screen such as a display is played back at an intermediate position between the loop in point and loop out point. Therefore, when the content data portion shown in Fig. 4 is played, an image in which the character's face moves toward the upper left force and lower right of the display screen such as a display is displayed.
- video A, video B, and video C are displayed in this order on the display screen by performing forward playback first.
- an image is displayed in which the character's face moves toward the upper left force and lower right of the display screen.
- the playback direction is reversed and reverse playback is performed, so that video C, video B, and video A are displayed in this order on the display screen.
- an image is displayed in which the character's face moves with the lower right force on the display screen moving toward the upper left.
- video A, video B, and video C are displayed in this order on the display screen.
- an image is displayed in which the character's face moves with the upper left force and lower right on the display screen.
- the user who operates the optical disc playback apparatus 1 according to the present embodiment can perform the loop playback of the content data portion without stopping the flow of the video by itself, and seamlessly or uncomfortable. In other words, seamless content data portion loop playback can be performed.
- the user who views the video can view the content data portion without making the flow of the video unnaturally V V seamless or uncomfortable!
- loop-in point and loop-out point in real time or at a desired timing, it is possible to extract an arbitrary content data portion in the content data reproduced in real time. Therefore, the user can perform loop playback at an arbitrary timing on the desired content data portion. That is, it is possible to suitably perform loop reproduction desired by the user as well as predetermined loop reproduction.
- loop reproduction is performed under the control of the system controller 20. Therefore, set the jog dial 41 etc. Compared with the loop playback by the user's own operation, the end point of the loop playback is hardly or not shifted. For this reason, highly accurate loop reproduction can be performed.
- the loop in point is a force specified by the user pressing the loop in point specifying button 411 at a desired timing.
- the method for specifying the loop in point is not limited to this. Needless to say.
- the loop-in point may be designated by directly inputting a playback time at which the user can specify the loop-in point.
- other methods may be used as long as the loop-in point can be designated. The same applies to the specification of the loop-out point.
- FIG. 6 is a timing chart conceptually showing the playback position when the loop playback according to the modification is performed
- FIG. 7 is the loop playback according to the modification
- 10 is another timing chart conceptually showing the reproduction position at the time.
- the playback time of the content data portion to be looped is shortened as the loop playback proceeds. May be.
- the end point force of loop playback is set to a position that advances along the playback time axis from the loop in point, and to a position that goes back along the playback time axis from the loop out point. Configure it to be done.
- the playback speed of the content data portion may be appropriately changed while performing loop playback.
- the content part is forward-played from the loop in point to the loop out point, while at the playback speed of n (n> 0) times (or From the loop out point to the loop in point)
- the content data portion may be reversely reproduced.
- the playback speed can be changed as needed during forward playback of the content data part, and the playback speed can be changed as needed during reverse playback of the content data part. You can do it.
- loop reproduction is performed while loop reproduction is performed, and a predetermined modulation is performed on the content data portion.
- Processing for example, modulation by sawtooth wave, modulation by square wave, modulation causing Doppler effect, modulation by special waveform simulating jet sound, modulation by special waveform simulating handgun sound, or user Etc. may be set in advance so as to be modulated by various special waveforms). This may be performed, for example, by pressing a predetermined one of the effect addition buttons 414 shown in FIG.
- the attachment of the effect processing described with reference to FIG. 7 may be performed, for example, by pressing a corresponding button of the effect addition buttons 414 shown in FIG.
- the above-described processing may be performed under the control of the system controller 20 with the pressing of the effect addition button 414 as a trigger.
- another effect process or the like can be further added to the content data portion specified by the loop-in point and the loop-out point.
- the content data portion specified by the loop-in point and loop-out point is extracted as a primary material for later adding another effect processing.
- another effect processing can be provided for the content data portion while performing loop reproduction of the content data portion. That is, the content data portion extracted as the primary material can be used to reproduce the content data portion as a secondary material to which effect processing has been applied. For this reason, the content data portion can be reproduced in a more specific manner or in a manner that attracts the viewer's interest.
- the effect addition button 414 is not necessarily provided.
- FIG. 8 is a flowchart conceptually showing a flow of the second operation example when the optical disc reproducing apparatus 1 according to the present embodiment performs loop reproduction.
- step S101 to step S104 are performed as in the first operation example.
- step S when the content data portion is being played back in a loop, it is determined whether or not the playback direction of the video in the content data portion is the forward direction (step S). 201). In other words, it is determined whether or not the video playback direction is the forward direction without considering the audio playback direction in the content data portion.
- step S201 if it is determined that the playback direction of the video in the content data portion is the forward direction (step S201: Yes), then the video in the content data portion is It is determined whether or not the playback position has reached the loop-out point (step S202).
- step S202 if it is determined that the video playback position in the content data part has reached the loop-out point (step S 202: No), step S 202 Returning to 103, the processing from step S103 onward is continued.
- step S202 when it is determined that the video playback position in the content data portion has reached the loop-out point (step S202: Yes), Under the control of the system controller 20 constituting a specific example of “second control means”, the playback direction of the video in the content data portion is reversed in the reverse direction (step S203). More specifically, if the loop out point is reached when the video in the content data part is played in the forward direction! /, Then the loop out point is directed to the loop in point. In the reverse direction The video in the data portion is played back. Thereafter, the process proceeds to step S206.
- step S201 determines whether or not the playback direction of the video in the content data portion is not the forward direction (step S201: No). If it is determined in step S201 that the playback direction of the video in the content data portion is not the forward direction (step S201: No), then the video in the content data portion. It is determined whether or not the playback position has reached the loop-in point (step S204).
- step S204 if it is determined that the playback position of the video in the content data portion has reached the loop-in point (step S204: No), the process returns to step S103. The processing from step S103 is continued.
- step S204 if it is determined that the playback position of the video in the content data portion has reached the loop-in point (step S204: Yes), the system controller 20 Under control, the playback direction of the video in the content data portion is reversed to the forward direction (step S205). More specifically, if the loop in point is reached while the video of the content data is being played in the reverse direction, the direction from the loop in point to the loop out point is subsequently increased in the forward direction. The video in the content data part is played back. Then go to step S20 6 o
- step S 206 it is determined whether or not the audio playback position in the content data portion has reached the loop-out point.
- step S206 if it is determined that the audio playback position in the content data part has reached the loop-out point (step S206: No), step S206 is performed. Returning to 103, the processing from step S103 onward is continued.
- step S206 when it is determined that the audio playback position in the content data portion has reached the loop-out point (step S206: Yes), Under the control of the system controller 20 that constitutes a specific example of the “third control means”, the audio playback position in the content data portion is set as a loop point (step S207). Thereafter, the audio in the content data portion is reproduced again in the forward direction from the loop-in point to the loop-out point. In other words, the audio in the content data part is looped from the loop in point. When the loop out point is reached, playback is continued from the loop in point.
- FIG. 9 is a timing chart conceptually showing the playback position when the loop playback according to the second operation example is performed
- FIG. 10 is a diagram showing the loop playback according to the second operation example. It is a wave form diagram which shows notionally the sound waveform at the time of being.
- FIGS. 9 and 10 illustrate the case where loop playback according to the second operation example is performed on the content data portion shown in FIG.
- the audio in the content data portion is forward-reproduced from the loop-in point to the loop-out point.
- the audio playback position is set as the loop-in point, and the forward playback of the audio in the content data portion is performed again from the loop-in point to the loop-out point. Thereafter, this operation is repeated unless loop playback is stopped.
- the video shown in FIG. 10 is displayed on a display screen such as a display. That is, forward playback is performed first, and video A, video B, and video C are displayed on the display screen. They are displayed in this order. In other words, an image is displayed in which the character's face moves toward the upper left force and lower right of the display screen. After that, the playback direction is reversed and reverse playback is performed, so that video C, video B, and video A are displayed in this order on the display screen. In other words, an image is displayed in which the character's face moves with the lower right force on the display screen moving toward the upper left.
- video A, video B, and video C are displayed in this order on the display screen.
- an image is displayed in which the character's face moves with the upper left force and lower right on the display screen.
- sound having a waveform shown in FIG. 10 is output from a speaker or the like.
- a sound in which a waveform obtained by forward reproduction of the sound in the content data portion repeatedly appears is output.
- video and audio in the content data portion can be loop-reproduced asynchronously (in other words, independently of each other). For this reason, the content data portion including each of video and audio can be played back in a loop seamlessly or without a sense of incongruity.
- the user operating the optical disc playback apparatus 1 according to the present embodiment simply designates the loop-in point and the loop-out point, loop playback of the content data portion can be performed without performing other complicated operations. It can be performed. For this reason, the user who operates the optical disk reproducing device 1 according to the present embodiment can perform the loop reproduction according to the second operation example by a relatively simple operation.
- loop-in point and loop-out point in real time or at a desired timing, it is possible to extract an arbitrary content data portion in the content data reproduced in real time. Therefore, the user can perform loop playback at an arbitrary timing on the desired content data portion. That is, it is possible to suitably perform loop reproduction desired by the user as well as predetermined loop reproduction.
- loop playback is performed under the control of the system controller 20. For this reason, the end point of the loop playback is hardly or not compared with the loop playback by the user's own operation using the jog dial 41 or the like. For this reason, highly accurate loop reproduction can be performed.
- the timing for reversing the video playback direction in the content data portion may be set at a position other than the loop-out point.
- FIG. 11 is a timing chart conceptually showing a playback position when loop playback according to the second operation example is performed.
- the playback direction of the video in the content data portion may be reversed at the midpoint between the loop-in point and the loop-out point.
- the reversal period of the video playback direction in the content data portion may be set to half the playback time of the content data portion.
- the first operation example and the second operation example may be combined appropriately.
- the content data It may be configured to add another effect processing to the data portion.
- it may be configured to add different effect processing or the like to each of the video and audio V, or another effect processing or the like may be applied to one of video and audio! Configure it to add.
- the power described for the player related to the optical disc 100 (that is, the optical disc playback device) as an example of the information playback device.
- the present invention is not limited to the player of the optical disc. It can also be applied to players of various information recording media that support high-density recording or high transfer rates. Further, the present invention is not limited to a player who obtains information recording medium power content data, but can be applied to a player who obtains content data via, for example, a broadcasting line or a wired or wireless communication line.
- the present invention is not limited to the above-described embodiments, but can be modified as appropriate without departing from the gist or concept of the invention that can be read.
- An information reproducing apparatus, an information reproducing method, and a computer program are also included in the technical scope of the present invention.
- the information reproducing apparatus and method and the computer program according to the present invention can be used for an information reproducing apparatus such as a DJ equipment. Further, it can also be used for an information reproducing apparatus mounted on various computer equipment for consumer use or business use or connectable to various computer equipment.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/281,214 US20090324192A1 (en) | 2006-03-01 | 2007-03-01 | Information reproduction device and method and computer program |
JP2008503805A JP4733737B2 (ja) | 2006-03-01 | 2007-03-01 | 情報再生装置及び方法、並びにコンピュータプログラム |
Applications Claiming Priority (2)
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JP2006054714 | 2006-03-01 | ||
JP2006-054714 | 2006-03-01 |
Publications (1)
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WO2007102388A1 true WO2007102388A1 (ja) | 2007-09-13 |
Family
ID=38474819
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PCT/JP2007/053878 WO2007102388A1 (ja) | 2006-03-01 | 2007-03-01 | 情報再生装置及び方法、並びにコンピュータプログラム |
Country Status (3)
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US (1) | US20090324192A1 (ja) |
JP (1) | JP4733737B2 (ja) |
WO (1) | WO2007102388A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7928313B2 (en) * | 2006-10-26 | 2011-04-19 | Stanton Magnetics, Inc. | Variable slippage control for a disc jockey control surface |
WO2009081921A1 (ja) * | 2007-12-25 | 2009-07-02 | Konami Digital Entertainment Co., Ltd. | ゲームシステムおよびコンピュータプログラム |
US8110734B2 (en) * | 2008-07-15 | 2012-02-07 | Gibson Guitar Corp. | Position sensitive rotatable DJ control device |
US8362349B2 (en) * | 2009-09-11 | 2013-01-29 | Gibson Guitar Corp. | Touch pad disc jockey controller |
US9264585B2 (en) | 2010-09-22 | 2016-02-16 | Cisco Technology Inc. | Enriched digital photographs |
US8729375B1 (en) * | 2013-06-24 | 2014-05-20 | Synth Table Partners | Platter based electronic musical instrument |
PL408468A1 (pl) * | 2014-06-09 | 2015-12-21 | Aktywator Innowacji Spółka Z Ograniczoną Odpowiedzialnością | System prezentowania przepisów kulinarnych i sposób prezentowania przepisów kulinarnych |
GB201610749D0 (en) * | 2016-06-20 | 2016-08-03 | Flavourworks Ltd | Method for delivering an interactive video |
US10593313B1 (en) | 2019-02-14 | 2020-03-17 | Peter Bacigalupo | Platter based electronic musical instrument |
Citations (4)
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US4628377A (en) * | 1983-05-12 | 1986-12-09 | Canon Kabushiki Kaisha | Information signal reproducing apparatus |
JPH03706B2 (ja) * | 1988-03-29 | 1991-01-08 | Canon Kk | |
JPH05103300A (ja) * | 1991-10-03 | 1993-04-23 | Sony Corp | デイスク再生装置 |
EP0640971A1 (en) * | 1993-08-27 | 1995-03-01 | Pioneer Electronic Corporation | Optical disc reproducing apparatus |
Family Cites Families (3)
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US6978081B1 (en) * | 1999-09-08 | 2005-12-20 | Sencore, Inc. | Continuous looping feature in transmission of HDTV signals |
US6888999B2 (en) * | 2001-03-16 | 2005-05-03 | Magix Ag | Method of remixing digital information |
JP4301069B2 (ja) * | 2004-04-28 | 2009-07-22 | ソニー株式会社 | 再生装置 |
-
2007
- 2007-03-01 JP JP2008503805A patent/JP4733737B2/ja not_active Expired - Fee Related
- 2007-03-01 US US12/281,214 patent/US20090324192A1/en not_active Abandoned
- 2007-03-01 WO PCT/JP2007/053878 patent/WO2007102388A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4628377A (en) * | 1983-05-12 | 1986-12-09 | Canon Kabushiki Kaisha | Information signal reproducing apparatus |
JPH03706B2 (ja) * | 1988-03-29 | 1991-01-08 | Canon Kk | |
JPH05103300A (ja) * | 1991-10-03 | 1993-04-23 | Sony Corp | デイスク再生装置 |
EP0640971A1 (en) * | 1993-08-27 | 1995-03-01 | Pioneer Electronic Corporation | Optical disc reproducing apparatus |
Also Published As
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JPWO2007102388A1 (ja) | 2009-07-23 |
JP4733737B2 (ja) | 2011-07-27 |
US20090324192A1 (en) | 2009-12-31 |
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