JPH03152784A - Video/sound edit system - Google Patents

Abstract

PURPOSE:To prevent the damage of a recording medium and the deterioration of sound quality occurring by performing the edit of sound corresponding to an address code attached on a magnetic film on which hand-drill edit is performed similarly as a hand-drill edited video film. CONSTITUTION:An image is collected with a camera 18, and the sound with a mike 10 and audio tape recorder (ATR) 19, and the dubbing of the sound recorded on the ATR 19 on a magdubber 7 and a PCM recorder 16 is performed. At this time, the same time code is recorded on the magdubber 7 and the PCM recorder 16 simultaneously with the dubbing of the sound. Also, the identification information of the films of a scene number and a cut number, etc., are recorded with the time code. Next, the video film 2 and the magnetic film 3 are set at a film editing machine 1, and the image and the sound are monitored as feeding simultaneously in parallel, and an unrequired part is deleted by the hand-drill edit. Thereby, the damage of the recording medium and the deterioration of the sound quality can be prevented occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an editing system used when editing the sound of a movie.

[Conventional technology]

Editing work using a conventional video and audio editing system will be explained.

Video and audio consists of three types of sounds: dialogue, sound effects, and music. Normally, the dialogue is recorded on an audio tape recorder (hereinafter referred to as AT R) at the same time as the film is being filmed.
io Tape Recorder). The lines recorded at the same time as the movie was filmed were dubbed onto a magnetic film with a magnetic coating on the back, and all audio editing work was done using this magnetic film. On the other hand, sound effects and music are additionally recorded after each scene of the movie, and in some cases, dialogue is also recorded after the movie.

Since the sound recorded during movie shooting includes NG (No Good) scenes, the NG scenes are first deleted and rearranged in order according to the scenario. This work is carried out using a device called a film editing machine 1 as shown in FIG. The film editing machine 1 has a mechanism for simultaneously running the editing movie film 2 and the magnetic film 3 on which audio is recorded, and allows the movie film 2 to be monitored frame by frame by the viewer 4.
Further, since a reproduction-only magnetic head (not shown) is attached to the rotation mechanism for applying the magnetic film 3, the sound recorded on the magnetic film can be reproduced and monitored. This film editing machine is used to hang the editing film and a magnetic film containing recorded sound corresponding to the scene, run them side by side at the same time, monitor the image and sound, and remove unnecessary parts such as NG scenes. Subtle positioning is done to match the image and sound, and the editing points are carefully determined by hand, unnecessary parts are deleted, and the pieces are stitched together again.At this time, the motion picture film and magnetic film are both the same. The unnecessary parts are removed by the length, and great care is taken to ensure that the length of the hand-cut image and the audio do not differ.

Next, using FIG. 7, we will describe the process of adding sound effects and music based on the movie film and magnetic film from which unnecessary parts have been removed.

In the figure, 5 is a projector that projects movie film, 6 is a screen on which movies are projected, and 7M, 7D, and 7S are usually called Mag Dubber, and are magnetic devices for audio editing that record and play back magnetic film. 8M, B, a film recording and reproducing machine (hereinafter referred to as Magdabar)
S is ATR19 is synchronizer, lO is microphone, 11
is a microphone amplifier.

In the system shown in FIG. 7, the projector 5 is the master,
The system configuration is such that Magdabar 7M, 7D, 73 and ATR 8M act as slaves and operate in synchronization with the projector 5.

In addition, the Magda Bars 7M, 7D, and 7S receive a synchronization signal outputted from the projector 5 as a reference signal for synchronized operation, such as a motor rotation pulse signal 12, and synchronize with this motor rotation pulse signal 12. works, ATR8
M is operating in synchronization with the projector 5 via a synchronizer 9.

Here, the synchronizer 9 inputs the motor rotation pulse signal 12 output from the projector 5 and converts it into a time code, and on the other hand, manually inputs the time code signal 13 output from the ATR 8M, so that both AT outputs the remote control signal 14 so that the information matches.
It controls the operation of R8M and causes the projector 5 and ATR8M to operate synchronously.

Next, a procedure for adding sound effects and music using the video and audio editing system configured as described above will be described.

The movie film from which unnecessary parts have been deleted in the previous stage and spliced in the order of the scenario is loaded into the projector 5, and the magnetic film edited in the same way is transferred to, for example, Magdaba 7.
Load D. After loading both films, we align the playback start position so that the image and audio match.For sound effects and music, we decide in advance the sounds necessary for each scene according to the scenario and record them on magnetic tape. Then, play the music tape on the ATR8M and the sound effect tape on the ATR8S.

After completing the above preparations, ATR8M.

All systems except 8S were operated, and while monitoring the movie projected on screen 6 and the lines played from Magdaba 7D, each tape was played when the scene where music and sound effects were to be inserted came. ATR8M, 8
3 is operated, the music is dubbed onto the magnetic film loaded into Magdaba-7M, and the sound effects are dubbed onto the magnetic film loaded into Magdaba-73. At this time, if any part of the dialogue is unclear, it is after-recorded onto the magnetic film loaded in the Magdabar-7D through the microphone 10 while monitoring the screen, as shown in the figure.

In addition, sound effects that are not prepared on the sound effect tape are recorded directly from the microphone onto the magnetic film. Depending on the scene, many people speak at the same time or use many types of sound effects at the same time, so it becomes necessary to increase the number of magnetic films and the number of recording channels. In this way, music, sound effects, additional recordings, and after-recording of lines are done. Here, I have explained that each work is done at the same time, but in reality, the music is the music, the sound effects are the sound effects, and the dialogue is just the dialogue, and each work is done independently by specialized editorial staff.

Next, once the creation of the three types of sound (dialogue, sound effects, and music) has been completed, those involved in the film production conduct a comprehensive evaluation of the film and sound. At this time, since the audio is still being recorded for each channel, it is mixed down by the mixer 15 and reproduced so that it becomes the same as the audio played in a movie theater, as shown in FIG. If the overall evaluation is OK, the mixed down audio can be used as is.
7, and this becomes the master magnetic film. If the overall evaluation is NG, the movie film and all magnetic films on which audio has been recorded will be subjected to the hand-cutting editing process using the film editing machine 1 again.
After that, the process returns and sounds are added or replaced.

Here, the audio mixing procedure shown in FIG. 8 will be described.

First, the edited movie film is loaded into the projector 5, the edited magnetic film with sound effects recorded is transferred to the Magdabar 78, and the edited magnetic film with dialogue recorded is transferred to the Magdabar 78.
7D, and the edited magnetic film with music recorded on it is loaded into Magdabar-7M.

After loading, the start position of each film is adjusted so that the movie and audio are played in sync. On the other hand, in order to record the mixed down sound, an unrecorded magnetic film is loaded into the Magdabar 7. After such preparations are completed, each device is operated to start the audio mixing work. At this time, each magda bar operates in synchronization with the motor rotation pulse signal 12 output from the projector 5. Furthermore, if the number of Magda bars in possession is small, a multi-channel ATR 8 may be added and operated as shown in the figure to increase the number of channels. This multi-channel ATR 8 is connected to the synchronizer 9 using the method described above.
It is running in synchronization with projector 5.

Each audio output from Magdaba-73, 7D, 7M and ATR8 is input to the mixer 15, where it is mixed down to the number of channels played in the movie theater.
5m movies are mixed down to 4 channels, and 70m+ movies are mixed down to 6 channels. The mixer 15 is usually placed in a room with the screen 6, and this room includes:
Speakers are placed just like in a movie theater, and the audio level is adjusted to match the scene projected on screen 6.

Adjustments are made to optimize the balance, etc., and the audio output from the mixer 15 is recorded on the magnetic film loaded in the Magdabar 7. During this process, if the overall evaluation is NG, editing is performed again as described above.

[Problem to be solved by the invention]

Conventional video/audio editing systems are configured as described above, and editing work is currently mainly performed by hand-cutting magnetic film.

During hand-cut editing, the magnetic film is manually loaded and unloaded into the film editing machine many times, and cut and connected again, so the magnetic film, especially the magnetic surface where the audio is recorded, is They are easily damaged, resulting in poor sound quality. Furthermore, since audio is recorded on magnetic film using an analog recording method, dubbing is repeated many times until the final sound is created, resulting in deterioration of sound quality. Furthermore, as the number of magnetic films used increases, the amount of editing work increases proportionally, making it difficult to manage them.

This invention was made to solve the above-mentioned problems. It uses a recording medium that can digitally record audio, and allows editing by hand without adding a time code to the movie film for editing. The purpose of the present invention is to obtain a video/audio editing system that edits digitized video/audio without performing digitization.

[Means to solve the problem]

The video and audio editing system according to the present invention edits video and audio in accordance with images of a movie film for editing.
The same address code is added to a recording medium that converts video and audio signals into PCM and records them in the form of digital signals, and to other audio magnetic films that are perforation-synchronized with the editing movie film, and hand-cut and edited video is created. In this system, video and audio converted into PCM are edited based on address codes corresponding to points to be edited on a magnetic film that has been manually cut and edited in the same way as film.

[Effect]

Since the video and audio editing system according to the present invention has the above-described configuration, the audio is edited in accordance with the address code added to the hand-cut and edited magnetic film in the same way as the hand-cut and edited video film. There is no longer a need to directly touch the recording medium, eliminating damage to the recording medium. Also,
Since audio is recorded in the form of a digital signal and digital dubbing is possible, deterioration in sound quality due to deformed dubbing can be prevented. Furthermore, since identification information useful for editing can be added, each audio material can be easily managed and accessed.

〔Example〕

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

FIG. 1 is a diagram showing a video and audio editing procedure using a video and audio editing system according to an embodiment of the present invention. In addition to conventional video and analog audio editing, digital audio and
! It was designed to collect.

The audio to be edited must be edited to match the video film.For this purpose, it is possible to add the same time code to the video and audio and use that time code to edit electronically, but this is the method currently used. It is difficult to add time code to video film. Therefore,
In this invention, a time code is provided on the video and audio magnetic film that is perforation-synchronized with the video film, and the same time code is added to the PCM video and audio, so that the video and magnetic films can be used in the same manner as before. The PCM video/audio is electronically edited based on the time code corresponding to the point to be edited on the magnetic film after hand-cutting.

Next, the configuration of the video and audio editing system of the present invention at each stage of editing work will be explained.

FIG. 2 is a diagram showing a system for recording video and audio at a movie shooting site in FIG. 1, and dubbing the audio to a magda bar and a PCM recording/reproducing machine for editing.

In the figure, 18 is a camera, 10 is a microphone, 11 is a microphone amplifier, and 19 is a digital ATR, and these devices are used to record video and audio at the shooting site. 7
The Magdabar-16 is a PCM recorder/player, which dubs the audio from the filming location recorded on the ATR19 and records the same time code. Reference numeral 20 is an identification information generator that generates film identification information (for example, scene number, cut number, etc.) useful for editing, and this information is also recorded in the Magdaba 7 and the PCM recorder/player 16 in the same way as the time code. Ru. 2 is a movie film for editing, and 3 is a magnetic film, which are in a perforation synchronous relationship with each other, that is,
Holes provided at the edges of the film for advancing the film are driven in a synchronous manner. The magnetic film 3 has an audio track 23 and a time code track 24, on which analog audio and a time code indicating an absolute address are recorded, respectively.

FIG. 3 is a diagram showing a system for deleting unnecessary parts from the editing movie film 2 and magnetic film 3 in FIG. 1 and rearranging the order according to a scenario.

In the figure, numerals 1 to 4 are the same as those in the conventional example shown in FIG. 6, and numeral 22 displays the time code of the portion being monitored and the editing point on a time code display. Reference numeral 17 denotes an editing controller, which includes a storage means for storing time codes of editing points.

FIG. 4 is a diagram showing a system for adding sound effects and sound based on the movie film 2 and magnetic film 3 from which unnecessary parts have been deleted.

In the figure, numerals 5 to 14 are the same as those in the conventional example shown in FIG. is an editing controller, which controls the PCM recording/reproducing machines 16M, 16D, and 16S. 21 is an A/D converter that converts a microphone input signal into a digital signal. Reference numeral 25 indicates a time code signal, which is based on the time code recorded on the magnetic film loaded in the Magdavar-7D, and is recorded in the PCM recorder/player 1'6M, 16D16S and inputted into the editing controller 17.

Figure 5 is a diagram showing a system that mixes down the audio recorded for each channel so that it becomes the same as the audio played in a movie theater. Includes an editing stage.

In the figure, 15 is Magdabar 7M, 7D, 7S and A.
In addition to mixing the sound of TR8 and outputting it to Magdaba-7, PCM recorder/player 16M, 16D, 16S, 16A
This is a mixer that mixes the audio of , and outputs it to the PCM recorder/player 16 . Reference numeral 17 denotes an editing controller, which causes the PCM recorder/player 16M, 16D, 16S, and 16A to perform assemble editing based on the stored edit point information and mixing information, and records the output on the PCM recorder/player 16.

Next, a video and audio editing operation by the video and audio editing system of the present invention will be described.

First, at a movie shooting site, as shown in FIG. 2, images are recorded with the camera 18, and audio is recorded with the microphone 10 and ATR 19. Next, the audio recorded in the ATR 19 is directly dubbed to the Magdabar 7 and the PCM recorder/player 16. At this time, the same time code is recorded on the Magdabar 7 and the PCM recorder/player 16 at the same time as dubbing the audio.

In addition, film identification information such as scene numbers and cut numbers are also recorded along with the time code. Furthermore, when dubbing audio, if the ATR 19 is a digital ATR, dubbing can be performed without deteriorating the sound quality by digitally dubbing to the PCM recorder/player 16.

Next, in the third step, unnecessary parts are deleted from the video film 2 and the magnetic film 3 dubbed by Magdavar 7, and address information is stored in the order according to the scenario.
Explain using diagrams.

First, the video film 2 and the magnetic film 3 are placed on the film editing machine 1, and as in the past, the images and sounds are monitored while running in parallel, and unnecessary parts are deleted by manual editing. At this time, input the time code of the magnetic film for the beginning of the part to be deleted and the H& frame into the editing controller 17,
The input to be stored in the storage device may be done online, or the value of the time code display 22 built into the film editing machine 1 may be entered directly into the editing controller 17 manually.

The process of adding sound effects and music based on the video film 2 and magnetic film 3 that have been edited by removing unnecessary parts through the above process will be described with reference to FIG.

Put the video film 2 on the projector 5, and put the magnetic film 3 on the projector 5.
For example, the Magdabar 7D is loaded, the projector 5 is used as the master, the Magdabar 7M, 7D, and 7S are operated synchronously, and the movie projected on the screen 6 and the audio played from the Magdabar 7D are monitored while the music and effects are played. In the scene where sound is inserted, ATR8M and BS are played, and the music is recorded on Magdaba-7M and PCMC recorder/player 16S, respectively. Here, the PCM recording/reproducing machines 16M and 16S simultaneously record the time code and other identification signals input from the Magdavar-7D. At the same time, the time code at the time of recording and the PCM
The editing address recorded in the recorder/player is stored in the editing controller 17. Also, when after-recording lines etc. to the Magdabar-7D through the microphone 10, the output of the microphone amplifier 11 is A/D converted at the same time. A/D conversion is performed by the device 21 and recorded on the PCM recording/reproducing device 16D. At this time as well, the time code and editing address are stored in the editing controller 17.

After completing the sound creation for each channel as described above, the process of mixing down the sound so that it becomes the same as the sound played in a movie theater will be described with reference to FIG.

First, the edited video film is transferred to the projector 5, the sound effect magnetic tape is transferred to Magdaba-73, the dialogue magnetic tape is transferred to Magdaba-7D, the music magnetic tape is transferred to Magdaba-7M, and the unrecorded magnetic tape is transferred to Magdaba-7M. -7, and with the projector 5 as the master, Magdabar-7M, 7D, 7S, and 7 are operated synchronously, and Magdabar-7M, 7D, ? The output of S is input to the mixer 15, and the mixed down output is recorded on the Magdabar 7. At the same time, this mixdown procedure is stored in the editing controller 17.

Finally, based on the information stored in the editing controller 17, the PCM recording and reproducing machine performs assembling and editing.According to the stored time code information, the audio recorded in the PCM recording and reproducing machine is rearranged in the order of the scenario. Further, according to the stored mixdown procedure, the mixer 15 mixes down the audio from the PCM recorder/player, and the output is recorded in the PCM recorder/player 16. At this time, there is no need to operate the projector 5 and the Magdavors 7M, 7D, and 73.7.

[Effects of the Invention] As described above, according to the video/audio editing system according to the present invention, the address code added to the magnetic film that is hand-cut and perforation-synchronized in the same way as the hand-cut and edited video film is , digital video and audio can be edited to match the video, and there is no need to directly touch the recording medium, eliminating damage to the recording medium. Furthermore, since the audio is recorded in the form of a digital signal and digital dubbing is possible, deterioration in sound quality due to deformed dubbing can be prevented. Furthermore, since identification information useful for editing can be added, each audio material can be easily managed and accessed.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a video and audio editing procedure using the video and audio editing system of the present invention, and FIG. 2 is a diagram showing a system for creating a magnetic film for recording and editing video and audio during movie shooting. Figure 3 is a diagram showing a system for deleting unnecessary parts from video film and magnetic film and rearranging them in the order of scenarios, Figure 4 is a diagram showing a system for adding sound effects, music, etc., Figure 5 is a diagram showing a system for performing mixdown, Figure 6 is a diagram showing a conventional system that deletes unnecessary parts from video film and magnetic film and rearranges them in the order of scenarios, and Figure 7 is a diagram showing a conventional system for adding sound. 8 are diagrams showing a conventional system for performing mixdown. In the figure, 1 is a film editing machine, 2 is a video film,
3 is a magnetic film, 5 is a projector, 7 is a magdavar, 15
16 is a mixer, 16 is a PCM recorder, and 17 is an editing controller. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] (1) A video film, an audio magnetic film that is in perforation synchronization with the video film and has address information added thereto, and an audio recording medium that can digitize and record video and audio that has the same address information as the film. A video and audio editing system to be used, including an identification information generator that generates identification information for use in editing, and a record that uses the magnetic film described above to record and reproduce address information and the identification information according to the video and audio, images. A playback device, A PCM recording and playback device that uses the above audio recording medium to digitally record and play back video and audio including address information and identification information corresponding to the video, controlling the PCM recording/reproducing machine according to address information corresponding to the point to be edited on the edited magnetic film;
A video and audio editing system comprising: an editing device that edits digitized video and audio.