JP2002112113A - Video-editing apparatus and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video-editing apparatus that can realize a video effect at an interval desired by a video editor, so as to attain a more sophisticated rendition. SOLUTION: The video-editing apparatus for editing video images receives an audio signal and detects a tempo from the received audio signal to obtain a tempo signal. Then a tempo n-multiple means 104 multiplies the tempo signal with a multiple of (n), depending on a coefficient set by the video editor and a video effect means 105 executes video effect processing (video image switching display or the like), synchronously with the tempo signal subjected to the n- multiple processing. Or a MIDI(musical instrument digital interface) signal may be utilized to use a timing signal included in control change data in the MIDI signal for the tempo signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a video mixer (video editing device) for editing a plurality of videos and displaying the edited videos on a display device.

[0002]

2. Description of the Related Art In recent years, in clubs and discothemes, music that is suitable for dance is reproduced using a reproducing device such as a record player or a compact disc player.
In addition to the jockey (DJ), a visual jockey (V) that edits a video according to the music being played and performs an operation of displaying the edited video on a viewing display device in the venue.
A video editor called J) is drawing attention.

Conventionally, such a video editor has used a computer (for example, a personal computer) on which a video editing program capable of editing a video in real time is installed as a video editing device for editing a video. In other words, the video editor operates a computer keyboard and mouse to edit a plurality of videos stored in the memory or the like in real time in accordance with the music being played in the venue, and to view the video in the venue. Display device (for example, monitor T
V).

FIG. 2 shows a schematic configuration of such a conventional video editing apparatus.

In the figure, 201 is a display, 202 is a personal computer main body, 203 is a keyboard, 204 is a mouse,
05 is an edit screen, 206 is a stored video display unit, 207 is an operation monitoring unit, 208 is a first selected video display unit, and 209 is a second selected video display unit.
This is a selected video display section.

As shown in FIG. 2, the video editing apparatus comprises a display 201, a personal computer body 202, a keyboard 20
3, a mouse 204 is provided. The personal computer body 202 includes a storage device (not shown), in which a video editing program capable of editing video in real time and a plurality of videos (for example, a still image or a moving image for several seconds) are stored in advance. .

In such a configuration, when the video editing program is started, an editing screen 205 is displayed on the display 201. The edit screen 205 includes a stored video display unit 206, an operation monitoring unit 207, and a first selected video display unit 20.
8, the second selection video display unit 209, and the editing screen 20
5, the personal computer 202
The images A to Z representing a plurality of images stored in advance in the storage device are displayed.

[0008] The first selected video display unit 208 and the second selected video display unit 209 display the video selected by the video editor from the video displayed on the stored video display unit 206.
Each is displayed. The two images displayed on the first selected image display unit 208 and the second selected image display unit 209 are:
The video is to be edited.

For example, the video editor operates the mouse 204 to change the video displayed on the storage video display unit 206 to the first selected video display unit 208 or the second selected video display unit 2.
When the drag and drop operation is performed to the image 09, the dragged image is displayed on the first selected image display unit 208 and the second selected image display unit 209. In FIG. 2, the image A is the first
The state where the image E is displayed on the selected image display unit 208 and the image E is displayed on the second selected image display unit 209 is illustrated.

The operation monitor 207 displays the video A or the video E selected and edited by the video editor. Conversely, since the same video as the video displayed on the motion monitoring unit 207 is displayed on the viewing display device in the venue, the video editor uses the video of the motion monitoring unit 207 to display the video on the viewing display device. You can check the video being displayed.

The video editor watches the operation monitoring unit 207 while listening to the music being played at the venue.
03 and the mouse 204 to operate the selected video A and video E
And alternately, and rotate the selected image.

For example, the operation of alternately switching between the image A and the image E can be performed by pressing the space key of the keyboard 203. For example, an editing operation in which the image A is faded in while the image A is faded out. (Cross fade operation) can be performed by operating the cross fader switch displayed on the edit screen 205 with the mouse 204. Although not shown, the crossfader switch is a GUI (Guraphical User Int) for receiving an operation from a video editor.
erface).

As described above, the video editor operates the video in real time while listening to the music being played in the hall and taking the rhythm with his own sense. However, if the video editor is a beginner or has little experience, there is a problem that the timing of editing the video does not match the tempo of the music being played in the venue, and the atmosphere of the venue is spoiled. Therefore, even if the video editor is a beginner or has little experience, a function that can accurately take a rhythm is required.

In order to solve such a problem, Japanese Patent Application Laid-Open No. 9-297594 discloses a MIDI (Musical Inst.
rument Digital Interface) The timing is determined based on the timing signal included in the sound control data (control change data) that conforms to the standard, and the beat display image is displayed in synchronization with the determined timing, prompting the listener to make time for the right hand. A karaoke apparatus adapted to do so is disclosed.

[0015]

In recent years, users have been demanding higher performances than in the past.

For example, by flashing the light at high speed,
There is a lighting technique that uses the afterimage effect of human vision to make the movement of a dancing person look like a frame advance. In such an illumination technique, it is generally necessary to blink the illumination at a period of 0.05 seconds to 0.5 seconds. In particular, a flashing cycle shorter than 0.2 seconds is required to produce the effect of making a human motion look like a robot.

In order to realize an advanced video effect in accordance with such lighting technology, a bright video and a dark video may be alternately displayed at high speed on a viewing display device in the hall. , An operation in which the video editor manually switches between a bright image and a dark image alternately in a cycle shorter than 0.2 seconds (that is, an operation in which the video editor turns ON / OFF the switch in a cycle shorter than 0.2 seconds) It is very difficult to do).

In general, the tempo of music played in a club or a disco is such that the beat per minute (BPM) is about 120 (0.5 second intervals).
Even if the video editor can accurately take the rhythm and alternate between bright and dark images in accordance with the rhythm, to achieve image effects that make human movements look like robot movements Is not enough.

Also, as in the karaoke apparatus described in Japanese Patent Application Laid-Open No. 9-297594, MIDI
Even if it is decided based on the timing signal included in the control change data conforming to the standard, and synchronized with the decided timing, the video is switched,
The fastest rhythm in MIDI is BPM (Beat Per Min
ete: beats per minute) 250 (0.25 second intervals)
This is not enough to realize a video effect that makes human motion look like a robot.

A method of controlling ON / OFF of a video using control change data conforming to the MIDI standard is also conceivable. In this case, general-purpose control change data (control numbers 80 to 8)
By using 3), this general-purpose operator is used to turn on / off the image.
What is necessary is just to describe the command which designates F. However, in this method, since a program must be prepared in advance, a video editor cannot realize a video effect according to the situation, and lacks real-time properties.

Further, when these methods are used, when a video editor wants to realize a video effect that makes a human motion look like the motion of a robot, the video switching interval is set at the point in time. There is also a problem that the video editor cannot switch the video at desired intervals depending on the tempo of the music being played.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video editing apparatus capable of realizing a video effect at an interval desired by a video editor, thereby enabling a more advanced effect. More specifically, it is an object of the present invention to provide a video editing device that enables a video editor to switch videos at desired intervals. Thereby, for example, in order to realize a video effect that makes a human motion look like a robot motion, it is possible to perform high-speed video switching.

[0023]

In order to achieve the above object, a video editing apparatus according to the present invention comprises: a means for inputting an audio signal; a means for detecting a tempo from the input audio signal and outputting a tempo signal; Means for receiving a setting of an n-multiplication coefficient for multiplying the tempo signal by n; means for multiplying the tempo signal by the received n-multiplication coefficient to output an n-folded tempo signal; Means for executing a video effect process in synchronization with the doubled tempo signal.

For example, the video effect process executed in synchronization with the n-times multiplied tempo signal is a video switching display.

According to the video editing apparatus of the present invention, the video editor can execute the video effect processing at intervals obtained by multiplying the tempo of the music being played in the hall by n times. It is possible to realize a video effect that makes a human motion look like the motion of a robot, so that a more advanced effect can be achieved.

Note that instead of the audio signal, the MID
An I signal may be input, a tempo may be detected from the input MIDI signal, and a tempo signal may be output.

[0027]

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

FIG. 3 shows an example of a hardware configuration of the video editing apparatus according to the present embodiment.

As shown in FIG. 3, the video editing apparatus according to the present embodiment includes a CPU 301, a main storage unit 302, an external storage device 303, a keyboard 304, a mouse 305, a video memory 306, a display control device 307, and a display 30.
8 and so on.

The video editing apparatus according to the present embodiment is used, for example, in the form shown in FIG.

That is, as shown in FIG. 4, the video editing apparatus 401 according to the present embodiment is connected to a reproducing apparatus 402 for reproducing music played in a venue, and outputs an audio signal or a MIDI signal reproduced by the reproducing apparatus 402. Upon input, it is connected to the viewing display device 404 installed in the venue, and outputs the edited video to the viewing display device 404. Note that an audio signal emitted from a sound source in response to an audio signal or a MIDI signal reproduced by the reproduction device 402 is amplified by an amplifier (not shown) and output from a speaker 403 installed in the venue.

In FIG. 3, an external storage device 303 of the video editing apparatus previously stores a video editing program capable of editing video in real time and a plurality of videos (for example, moving images and still images for several seconds). Have been. Then, the CPU 301 loads the video editing program into the main storage unit 302 and executes the program, thereby displaying an editing screen on the display 308, and according to the video editor's operation input from the keyboard 304 or the mouse 305. A video effect process is performed in which two videos selected as the video to be edited are edited in real time, output to the display device for viewing 404, and displayed.

The operation of the video editor to select the video to be edited is the same as the operation described with reference to FIG. 2 in the section of the prior art.

That is, in the video editing apparatus, the CPU
When the image processing program 301 loads the video editing program stored in the external storage device 303 into the main storage unit 302 and executes the program, the display 201 displays the editing screen 2 shown in FIG.
05 is displayed. As shown in FIG. 2, the editing screen 205 includes a storage image display unit 206 on which images A to Z representing a plurality of images stored in the external storage device 303 are displayed in advance, and a storage image display unit A first selected video display unit 208 and a second selected video display unit 209 each displaying a video selected as an object to be edited from among the images A to Z displayed on the display unit 206, and a display device 404 for viewing. And an operation monitoring unit 207 for displaying the image displayed on the screen.

Here, for example, in a video editing device,
When a command to replace the video to be edited is input from the keyboard 304 or the mouse 305, the CPU 301 replaces the video to be edited according to the command to replace the video to be edited. For example, in FIG. 2, when an instruction to set the image L displayed on the stored image display unit 206 to be the first image is input, the image L is replaced with the first selected image display unit instead of the image A. 208, the image L is treated as the first image, and the operation monitoring unit 207 and the display device 4 for viewing are displayed.
A video to be displayed on the screen 04 is generated.

For example, in a video editing apparatus, C
When a video switching instruction is input from the keyboard 304 or the mouse 305, the PU 301 responds to the video switching instruction by the operation monitoring unit 207 and the display device 40 for viewing.
Switch the video to be displayed in step 4. For example, in the case of an instruction to switch to the first video, the video displayed on the operation monitoring unit 207 and the viewing display device 404 is displayed on the first selected video display unit 2.
If the instruction is to switch to the first image displayed at 08 and to switch to the second image, an image to be displayed on the operation monitoring unit 207 and the viewing display device 404 is displayed on the second selected image display unit 209. Switch to the second video.

Now, the video editing apparatus according to the present embodiment
The video is switched at the timing when the tempo of the audio signal is multiplied by n. The setting of the n multiplication factor for multiplying the tempo of the audio signal by n is performed by the video editor inputting from the keyboard 304 or the mouse 305.

FIG. 1 shows a functional block diagram of the video editing apparatus according to the present embodiment.

In the figure, 101 is an audio signal input means,
102 is a tempo detecting means, 103 is an n-multiplying coefficient setting means, 104 is a tempo n-doubling means, 105 is a video effect means, and 106 is a video output means.

In FIG. 1, audio signal input means 1
01 receives the audio signal input from the playback device 402 and outputs it to the tempo detection means 102. The tempo detection means 102 detects the tempo of the audio signal output from the audio signal input means 101, and outputs the tempo signal. Is output to the video effect means 105 via the tempo n doubling means 104.

FIG. 5 is a functional block diagram of the tempo detecting means 102.

In the figure, reference numeral 501 denotes A / D (Analog / Digital)
A conversion unit 502 is a band pass filter (BPF: Band).
Pass Filter), 503 is a slice level setting unit, 50
4 is a level detection unit.

In FIG. 5, audio signal input means 1
If the audio signal 01 is an analog signal, it is digitized by the A / D converter 501 and then input to the BPF 502. If the audio signal is a digital signal, the audio signal does not pass through the A / D converter 501. BPF502
Is input to

Generally, low-frequency components of an audio signal include:
The BPF 502 extracts a low-frequency component (for example, 20 to 200 Hz) of the input digital audio signal because a bass sound and a drum sound that are rhythms of music are included. The extracted low frequency component is supplied to a slice level setting unit 5.
03 and the level detection unit 504.

The slice level setting unit 503 includes a BPF 5
The signal level of the low-frequency component output from 02 is measured for a predetermined period (for example, 5 seconds), and the obtained peak level is converted into an absolute value. Slice level setting unit 50
3 sets a value obtained by multiplying the absolute value of the obtained peak level by a predetermined value (for example, 0.8) as a slice level value, and outputs the slice level value to the level detection unit 504. By doing so, even if the signal level of the audio signal output from the playback device 402 changes for each song, the slice level setting unit 503 can automatically set the slice level. It should be noted that the value by which the absolute value is multiplied by the peak level may be arbitrarily set by the video editor. In FIG. 5, the configuration is such that the slice level is automatically set. However, the configuration may be such that the video editor can set the slice level.

The level detecting section 504 compares the slice level set by the slice level setting section 503 with the signal level of the low-frequency component of the input digital audio signal, and outputs the tempo signal when the latter is larger. Output. As a result, the level detection unit 504 outputs a tempo signal synchronized with the bass sound and the drum sound included in the audio signal input from the playback device 402.

Note that the detection of the tempo from the audio signal input from the reproducing device 402 is not limited to the method shown in FIG. 5, but another method (for example, as disclosed in JP-A-8-201542). May be used.

Returning to FIG. 1, n-times multiplication coefficient setting means 103
Outputs the n multiplication coefficient input by the video editor from the keyboard 304 or the mouse 305 to the tempo n multiplication unit 104.

The tempo n doubling means 104 converts the tempo signal output from the tempo detecting means 102 into n according to the n doubling coefficient output from the n doubling coefficient setting means 103.
The doubled and n-folded tempo signal is output to the video effect means 105 as a synchronization signal.

The video effect means 105 executes the video effect processing such as the replacement of the video to be edited and the switching display of the above-described video. The synchronization signal is used as an opportunity. That is, the video effect unit 105 uses the synchronization signal output from the tempo n doubling unit 104 as a trigger to switch the video to be displayed by switching to the video memory 30 via the video output unit 106.
6 is output.

These means 101 to 106 shown in FIG.
The function is realized by the CPU 301 loading the timing determination program stored in the external storage device 303 into the main storage unit 302 and executing it.

FIG. 6 shows an operation flow of the video editing apparatus according to this embodiment.

As shown in FIG. 6, the video editing apparatus detects an input from the keyboard 304 or the mouse 305 (steps 601 to 603).

If the input from the keyboard 304 or the mouse 305 is an n-multiplication coefficient (step 601), the video editing apparatus uses the n-multiplication coefficient setting means 103 to convert the input n-multiplication coefficient into a tempo n. The output is output to the doubling means 104 (step 604).

In the video editing device, the playback device 402
While the audio signal is being output from, the tempo detection means 102 outputs the tempo signal to the tempo n-doubling means 104 as described above. Therefore, the n-doubling coefficient output to the tempo n-doubling means 104 in step 604 is used when the tempo n-doubling means 104 multiplies the tempo signal by n.
The doubled tempo signal is output to the video effect means 105 as a synchronization signal.

When the input from the keyboard 304 or the mouse 305 is an instruction to replace the video to be edited (step 602), the video editing apparatus 105 causes the video editing device 105 to specify the video (storage) specified by the operation. One of the images A to Z displayed on the image display unit 206 is set as the first image or the second image (Step 605).

If the input from the keyboard 304 or the mouse 305 is a video switching instruction (step 603), the video editing device sets the video effect
It is determined whether or not it is time to switch the video by the synchronization signal (step 606), and if it is the timing to switch the video, the display video is switched (step 607). Specifically, in step 607, if the previously displayed video is the first video,
The video is displayed, and if the previously displayed video is the second video, the first video is displayed. Note that the video effect means 105 stores and holds information indicating whether the video displayed last time was the first video or the second video using a flag or the like.

In this embodiment, when a video switching instruction is input, the video is automatically switched.
An instruction to stop video switching is provided, and when the video switching stop instruction is input (step 608), video switching is terminated.

By this operation, the video displayed on the operation monitoring unit 207 of the editing screen 205 and the display device for viewing 404 are changed to one of the first video and the second video each time the synchronization signal is output. , Alternately.

For example, consider a case where it is desired to realize a video effect that makes a human motion look like a robot motion.

In such a case, the video editor inputs the n-multiplication coefficient so that the output interval of the synchronization signal is an interval that gives an afterimage effect to human vision, and also as shown in FIG. Then, the video 701 and the video 702 such as a white image may be selected as editing targets (switching targets), and an instruction to switch these videos 701 and 702 may be input.
Note that the video 702 is not a white image, but may be a normal video as long as it gives an afterimage effect to human vision. Further, the switching target videos 701 and 702
May be a video to which processing such as adding a logo is added.

The video editing apparatus according to the present embodiment has been described above.

In this embodiment, since the tempo n doubling means 104 may multiply the tempo signal by n as many as the hardware can realize, the number of n doubling coefficients to be set depends on the video. What is necessary is just to freely and variably set in real time according to the effect desired by the editor. For example, a television field (NTSC (National Televis
1/30 second) and frames (N
It is conceivable to increase the speed up to a timing in units of 1/60 second (in TSC), or conversely, in order to change slowly, timing in units of several seconds is also conceivable.

In the present embodiment, the description has been made assuming that two images are alternately displayed.
More than one video may be displayed sequentially.

Further, in the present embodiment, when the video editor performs an operation of inputting the n-times multiplication coefficient and the switching instruction, the video is automatically switched. Alternatively, an operation for manually switching images may be provided as in the related art.

In the present embodiment, the configuration example shown in FIG. 3 is a configuration example when a general personal computer is used as a video editing device, and another configuration may be adopted.

As another configuration example, a configuration is possible in which a dedicated operation device (controller) that is freely portable is provided.

Since the DJ operation is an operation using a music editing apparatus having a plurality of record playback turntables, performance by a large operation such as rotating the turntable can be performed, and the edited music can be performed. In addition to the operation itself, the audience can be entertained. On the other hand, since the operation of the video editor using the personal computer as the video editing device is an operation using the keyboard 304 and the mouse 305, the operation is almost the same as the operation when using a general computer in an office or the like. It doesn't look very good.

Therefore, a video editing device capable of performing video editing by an operation that looks good, that is, a video editing operation can be performed at a desired position regardless of the installation position of the video editing device, and the operability is excellent. Instead of the keyboard 304 and the mouse 305,
If a controller is used, the video editor can operate the controller away from the video editing device, and an operation that looks good can be realized.

For example, an example of a configuration in which a dedicated controller is provided is as shown in FIG.

In FIG. 8, the same components as those in FIG. 3 are denoted by the same reference numerals. Reference numeral 800 denotes a controller capable of receiving an operation of a video editor at a position distant from the video editing apparatus main body. The controller 800 and the video editing apparatus main body are connected to each other via an arbitrary transmission line regardless of whether it is wireless or wired. The controller 800 includes a CPU 80
A changeover switch 802 for receiving an operation for switching between one or two displayed videos, an edit target video selection unit 803 for receiving an operation for selecting a video to be edited, and an n multiplication factor for receiving an input of an n multiplication factor An input unit 804 and the like can be provided. This video editing apparatus is used, for example, in the form shown in FIG.

If a dedicated controller is provided, the n-multiplication coefficient setting means 103 shown in FIG.
Although the processing is shifted to the controller 800 side, the audio signal input means 101, the tempo detection means 102, and the tempo n doubling means 104 are left in the video editing apparatus main body even if the processing is shifted to the controller 800 side. Is also good.

In the controller 800, the CPU 80
1 is a changeover switch 802, an edit target selection unit 803, n
The state of the doubling coefficient input unit 804 is detected and notified to the video editing apparatus main body. In the video editing device main body, the CPU 3
01 is selected as the video to be edited according to the operation content of the video editor notified from the controller 800.
One video is edited in real time, and the viewing display device 40
4 for video effect processing such as output to 4 for display.

Further, in the present embodiment, the timing signal included in the control change data in the MIDI signal may be used as the tempo signal using the MIDI signal.

For example, instead of audio signals, MID
A functional block diagram when using the I signal is as follows.
As shown in FIG.

In FIG. 10, the same components as those in FIG. 1 are denoted by the same reference numerals. 107 is a MIDI signal input means.

The MIDI signal input means 107 is a MIDI
The tempo detecting means 102 captures the signal and outputs it to the tempo detecting means 102. The tempo detecting means 102 detects a timing signal included in the control change data in the MIDI signal output from the MIDI signal inputting means 107, and generates a video effect as a tempo signal. Output to the means 105.

Also, for example, the audio signal and the MI
FIG. 11 shows a functional block diagram when both DI signals can be used.

In FIG. 11, the same components as those in FIG. 1 are denoted by the same reference numerals. 107 is a MIDI signal input means, and 108 is a signal selection means.

The MIDI signal input means 107 is a MIDI signal input means.
The signal is fetched and output to the signal selection means 108. The audio signal input by the audio signal input means 101 is also output to the signal selection means 108. The signal selecting means 108 selects a signal designated by the video editor at the time of or before the input of the video switching instruction,
The selected signal is output to the tempo detection means 102. When the signal output from the signal selection unit 108 is an audio signal, the tempo detection unit 102 detects the tempo of the audio signal and converts the tempo signal through the tempo n-doubling unit 104 as described above. If the signal output to the video effect means 105 and the signal output from the signal selection means 108 is a MIDI signal, a timing signal included in the control change data in the MIDI signal is detected and the tempo signal is multiplied by n. Output to the video effect means 105 via the means 104.

As described above, according to the video editing apparatus of the present embodiment, the video editor can execute the video effect processing at intervals of n times the tempo of the music being played in the venue. Is possible, for example, it is possible to realize a video effect that makes a human motion look like the motion of a robot, so that a more advanced effect can be achieved.

When a timing signal included in control change data conforming to the MIDI standard, which can detect a tempo earlier than the tempo of an audio signal, is used as a tempo signal, a coefficient for multiplying the tempo signal by n is obtained. Since the number of audio signals is smaller than that in the case of using audio signals, there is also an effect that the storage capacity of the coefficients to be stored in the video editing device can be reduced.

The present invention can be applied not only to video switching but also to general video effect processing such as switching between negative and positive of one video. That is, the timing for executing the video effect processing is
What is necessary is just to take it with the synchronizing signal output from the tempo n doubling means 104.

The present invention can be similarly applied not only to video but also to music and other media.

[0085]

As described above, according to the present invention,
The video editor can execute the video effect processing at intervals obtained by multiplying the tempo of the music being played in the hall by n times, so that, for example, a video that makes a human motion look like a robot's motion. An effect can be realized, and therefore, a more advanced effect can be achieved.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a video editing apparatus according to an embodiment.

FIG. 2 is a schematic configuration diagram of a conventional video editing device.

FIG. 3 is a hardware configuration diagram of the video editing apparatus according to the embodiment.

FIG. 4 is an explanatory diagram showing a use form of the video editing device according to the embodiment;

FIG. 5 is a functional block diagram of a tempo detection unit according to the embodiment.

FIG. 6 is a flowchart showing the operation of the video editing device according to the embodiment.

FIG. 7 is an image diagram of an image switched by the image editing device according to the embodiment.

FIG. 8 is a hardware configuration diagram of a video editing apparatus when a dedicated controller is provided.

FIG. 9 is an explanatory diagram showing a use form of a video editing device provided with a dedicated controller.

FIG. 10 is another functional block diagram of the video editing device according to the embodiment.

FIG. 11 is another functional block diagram of the video editing device according to the embodiment.

[Explanation of symbols]

101: audio signal input means, 102: tempo detection means, 103: n multiplication coefficient setting means, 104: tempo n
Doubler means 105 Image effect means 106 Image output means 107 MIDI (Musical Instrument Dig)
ital Interface) signal input means, 108 ... signal selection means, 201 ... display, 202 ... personal computer body, 2
03 ... keyboard, 204 ... mouse, 205 ... editing screen, 206 ... storage image display unit, 207 ... operation monitoring unit, 2
08: first selected video display unit, 209: second selected video display unit, 301: CPU, 302: main storage unit, 303: external storage device, 304: keyboard, 305: mouse, 30
6 video memory, 307 display control device, 308 display, 401 video editing device, 402 playback device, 403 speaker, 404 viewing display device, 50
1 A / D (Analog / Digital) converter, 502 Band-pass filter (BPF), 503
... Slice level setting unit, 504 ... Level detection unit, 70
1, 702: Switching target video, 800: Controller, 801: CPU, 802: Changeover switch, 803:
Editing target video selection unit, 804... N multiplication factor input unit.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G10K 15/00 G10K 15/00 K

Claims (6)

[Claims] 1. An image editing apparatus for storing and editing a plurality of images, means for inputting an audio signal, means for detecting a tempo from the input audio signal and outputting a tempo signal, and multiplying the tempo signal by n times Means for accepting the setting of an n-folding coefficient for converting the tempo signal, means for multiplying the received tempo signal by the accepted n-folding coefficient, and outputting an n-folded tempo signal; Means for executing a video effect process in synchronization with a signal. 2. A video editing apparatus for storing and editing a plurality of videos, a means for inputting a MIDI signal, a means for detecting a tempo from the input MIDI signal and outputting a tempo signal, and multiplying the tempo signal by n times Means for accepting the setting of an n-folding coefficient for converting the tempo signal, means for multiplying the received tempo signal by the accepted n-folding coefficient, and outputting an n-folded tempo signal; Means for executing a video effect process in synchronization with a signal. 3. The video editing apparatus according to claim 1, wherein the video effect processing executed in synchronization with the n-times multiplied tempo signal is a video switching display. Editing device. 4. A storage medium storing a program to be executed by a video editing apparatus for storing and editing a plurality of videos, comprising: a function for inputting an audio signal; a tempo signal detecting a tempo from the input audio signal; And a function for accepting the setting of an n-doubling coefficient for n-times the tempo signal, and multiplying the received tempo signal by the accepted n-doubling coefficient to obtain an n-folded tempo signal. A storage medium in which a program described as having the video editing device has a function of outputting and a function of executing a video effect process in synchronization with an n-folded tempo signal. 5. A storage medium storing a program to be executed by a video editing apparatus for storing and editing a plurality of videos, a function of inputting a MIDI signal, a tempo detection function for detecting a tempo from the input MIDI signal and a tempo signal. And a function for accepting the setting of an n-doubling coefficient for n-times the tempo signal, and multiplying the received tempo signal by the accepted n-doubling coefficient to obtain an n-folded tempo signal. A storage medium in which a program described as having the video editing device has a function of outputting and a function of executing a video effect process in synchronization with an n-folded tempo signal. 6. The storage medium according to claim 4, wherein the video effect processing executed in synchronization with the n-folded tempo signal is a video switching display. .