JP2007066399A - Video and audio editing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video and audio editing system enabling a user to simply and accurately specify a time range in editing a time line. <P>SOLUTION: In the video and audio editing system comprising: a display device 2 including a user interface 20 which displays video and audio as a time line 21 along a time axis, specifies an arbitrary time range on the time line 21, moves a reproducing head 22 within the range, outputs the video on a preview screen to edit by cutting out and clipping and a controller 1 which controls the display device 2, the user interface 20 has a function to align the reproducing head 22 on the starting point or the endpoint of the editorial range by controlling the display device 2 by the control device 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a control technology for a display device of a video / audio editing system.

Software user interfaces for video and audio generally display video and audio material as a timeline along the time axis, and indicate the desired time in the material by indicating an arbitrary position on the timeline. To the software.
When it is desired to cut out a part of the material or when it is desired to cut it out, it is necessary to specify a section between the time at which cutting is to be started and the time at which it is to be ended, that is, the time range.

To specify the range at this time, the playback head displayed on the timeline and the preview display or audio output of the video that matches the playback head are visually or visually checked, and the playback head is clicked with the mouse. In general, the reproducing head is moved by dragging or dragging, or by directly inputting a numerical value of a moving amount or time from a keyboard. Therefore, there is a problem in that an unaccustomed user cannot accurately specify a time range.
An object of the present invention is to provide a video / audio editing system in which a user can easily and accurately specify a time range when editing a timeline.

In order to achieve the above object, according to the first aspect of the present invention, video and audio are displayed as a timeline along the time axis, an arbitrary time range on the timeline is designated, and the reproducing head is within that range. In a video / audio editing system comprising: a display device having a user interface that outputs a video on a preview screen, cuts out the range, and edits the cutout; and a control device that controls the display device. Is characterized in that the display device is controlled through the user interface so that the reproducing head is made to coincide with the start point or end point of the editing range.
According to a second aspect of the present invention, in the video / audio editing system according to the first aspect, the control device displays the preset initial value when the editing range is designated via the user interface. It is characterized by controlling.
According to a third aspect of the present invention, in the video / audio editing system according to the second aspect, the initial value is arbitrarily changed.

  The present invention displays video and audio as a timeline along the time axis, specifies an arbitrary time range on the timeline, moves the playback head within the range, and outputs the video on the preview screen. In a video / audio editing system including a display device having a user interface for performing clipping and editing of the range and a control device for controlling the display device, the display device is controlled by the control device, so that the user interface is: The function to match the playback head to the start point or end point of the edit range, and the function to display the preset initial value when specifying the edit range, the user can make time The range can be specified easily and accurately.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of a video / audio editing system according to an embodiment of the present invention. The video / audio editing system includes a CPU 1, a display device 2, an interface 3, a memory 4, an external storage device 5, and an input device 6.
The CPU 1 functions as calculation means and control means for each unit. The display device 2 shows a graphic display such as a CRT. The user interface drawn on the display device 2 is the main element of the present invention. The external storage device 5 holds video and audio data to be edited. Video and audio data are edited by the user's operation and then stored in the external storage device 5. The input device 6 represents a pointing device such as a mouse.
FIG. 2 is a diagram showing a basic configuration of a user interface displayed on the display device shown in FIG. In the user interface 20, materials such as video and audio are displayed on a timeline 21 based on the time axis, and control buttons such as a playback head 22, a playback button 23, a playback pause button 24, a range designation start button 25, The range designation determination buttons 26 are respectively arranged on the user interface 20. A preview screen 27 synchronized with the position of the reproducing head 22 is also prepared.
A video corresponding to the position of the reproducing head 22 is always displayed on the preview screen 27. For example, when playback is started, a video is displayed on the preview screen 27 in accordance with the movement (current position) of the playback head 22. If the playback is stopped, the video at the current position of the playback head 22 is displayed on the preview screen 27 in a stopped state. Although omitted in this example, a fast forward function, reverse playback function, frame advance function, etc. are implemented as necessary.

FIG. 3 is a diagram showing a configuration of a user interface in which functions are further added to the basic user interface shown in FIG. This is an example of a user interface 20 of editing software that cuts out a part that is an unnecessary part of video and audio material, or conversely cuts out only a necessary part. For this purpose, a cutout button 28 and a cutout button 29 are provided.
When the range designation start button 25 is pressed, a default length predetermined by the system, for example, a range of a length of 10 seconds, for example, is displayed as an editing range with reference to the current position of the reproducing head 22. This length can be reset according to the user's preference, or the system can automatically recalculate according to parameters such as the length of the material. For example, it is possible to automatically calculate and use the length of the range that fits within the timeline 21 displayed on the screen.
FIG. 4 is a diagram showing the editing range in the timeline in the user interface shown in FIG. The default length is the editing range.
The position of the reproducing head 22 may be either the start point or the end point of the range. For example, when the vicinity of the start point and the end point is clicked, the reproducing head 22 is attracted to either. It may be selected by assigning it to a key on the keyboard.
FIG. 5 is a diagram showing a state where the position of the reproducing head is set to the start point or end point of the range in the user interface shown in FIG. As shown in (1), when the vicinity of the starting point is clicked, the reproducing head 22 is attracted to the starting point. As shown in (2), when the vicinity of the end point is clicked, the reproducing head 22 is attracted to the end point.
When the playback button 23 is pressed here, the position of the playback head 22 moves as the video and audio are played back, and the preview screen 27 is also updated and displayed. At this time, the start point of the range also moves forward with the reproducing head 22. The starting point of the range is also moved until playback is stopped or the playback head 22 reaches the end point.

FIG. 6 is a diagram showing how the reproducing head moves from the start point to the end point in the order of (1) to (3) in the user interface shown in FIG.
When the reproduction head 22 reaches the end point, the reproduction is automatically stopped. However, depending on the purpose of editing, the end point may be passed as it is, and the start point and the end point may be switched.
FIG. 7 is a diagram showing a state in which the reproducing head moves further forward (in the direction of the arrow) from the end point in the order of (1) to (3) in the user interface shown in FIG. As described above, when the position of the reproducing head 22 is located at the end point of the range, the end point of the range is similarly moved forward. In this way, editing mistakes near the end are eliminated. When it reaches the end point of the material, it pauses and waits for a user instruction, but it may return to the start point depending on the purpose of editing.
When the start point and end point of the range are the positions desired by the user, the range designation determination button 26 is pressed. The system now recognizes that the range interval has been determined. Thereafter, functions such as clipping and clipping are executed according to the purpose of the user. For example, when the cutout button 28 is pressed, the portion of the currently determined range is cut off from the material. FIG. 8 is a diagram showing a range in which the material is deleted when the cutout button is pressed in the user interface shown in FIG.
When the cutout button 29 is pressed, the part other than the specified range (from the start point to the end point) in the material is cut off and the range portion remains.

1 is a configuration diagram of a video / audio editing system according to an embodiment of the present invention. FIG. The figure which shows the basic composition of the user interface displayed on the display apparatus shown in FIG. The figure which shows the structure of the user interface which added the function further to the basic user interface shown in FIG. The figure showing the edit range in a timeline in the user interface shown in FIG. The figure which shows a mode that the position of a reproducing head is made into the start point of a range, or an end point in the user interface shown in FIG. The figure which shows a mode that a reproducing head moves toward the end point from the starting point in order of (1) thru | or (3) in the user interface shown in FIG. The figure which shows a mode that a reproducing head moves further toward the front (arrow direction) from an end point in order of (1) thru | or (3) in the user interface shown in FIG. The figure which shows the range from which the raw material is deleted when the cutout button is pushed in the user interface shown in FIG.

Explanation of symbols

1 CPU (control device), 2 display device, 20 user interface, 21 timeline, 22 playback head, 23 playback button, 24 playback pause button, 25 range specification start button, 26 range specification determination button, 27 preview screen, 28 Cutout button, 29 Cutout button

Claims (3)

  Display video and audio as a timeline along the time axis, specify an arbitrary time range on the timeline, move the playhead within that range, output the video on the preview screen, and crop the range In a video / audio editing system comprising a display device having a user interface for editing cut-out and a control device for controlling the display device, the control device plays back to the start point or end point of the edit range via the user interface. A video / audio editing system, wherein the display device is controlled to match the heads.   The video / audio editing system according to claim 1, wherein the control device controls the display device to display a preset initial value when designating an editing range via the user interface. Video / audio editing system. 3. The video / audio editing system according to claim 2, wherein the initial value is arbitrarily changed.

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