JPH03150552A - Video and sound editing system - Google Patents

Abstract

PURPOSE:To edit a sound fully electronically by adding the same address codes to a magnetic film capable of traveling in perforation synchronism with a movie film and a sound signal corresponding to the magnetic film. CONSTITUTION:When the movie film 2 to be edited and the magnetic film 3A to be edited where a time code signal is recorded are made to travel simultaneously, a sound signal part to which the same time code signal as the time code signal from a film editing machine 1A is added is reproduced and displayed on the monitor 23 of a console panel to know which part of which kind of sound is being reproduced at a glance. A time code display device 49 corresponding to an image projected on a viewer 4 is fitted on the film editing machine 1A and the same time code is displayed on the monitor 23 and a time code display device 49. The video film to be edited is made to travel continuously, an unnecessary part such as an NG scene is deleted, and the film is joined again. Consequently, a sound is edited electronically without touching the recording medium directly.

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]

A conventional video and audio editing method 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 ATR) at the same time as the movie is being filmed.
io Tape Recorder). The lines recorded at the same time as the movie was shot are dubbed onto magnetic film, which has a magnetic coating on the back. All audio editing work is 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. film editing i
The m, 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 viewer 4 to monitor the movie film 2 frame by frame. A reproduction-only magnetic head (not shown) is attached to the rotating mechanism part of the multiplier 3, so that the audio recorded on the magnetic film can be reproduced and monitored. The film editing machine 1 is loaded with a magnetic film containing a movie film for editing and recorded sound corresponding to the scene, and is run in parallel at the same time, monitoring the image and sound, and detecting unnecessary parts such as NG scenes. , delicate positioning is done to ensure that the image and audio match, and the editing points are carefully determined by hand, unnecessary parts are deleted, and the pieces are stitched together again.

At this time, unnecessary parts are removed from both the motion picture film and the magnetic film by the same length, and great care is taken to ensure that the length of the image and sound after hand-cutting do not differ.

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

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 magnetic film recording and reproducing machines (hereinafter referred to as Magdabar) for audio editing that record and reproduce magnetic films. Dubber)
). In 8M and BS, ATR 19 is a synchronizer, 10 is a microphone, and 11 is a microphone amplifier.

In the system shown in FIG. 7, the projector 815 is the master, and the Magdabars 7M, 7D, 7S and ATR 8M are slaves and operate in synchronization with the projector 5. The Magda bars 7M, 7D, and 7S input a synchronization signal output from the projector 5, such as the motor rotation pulse signal 12, as a reference signal for synchronized operation.
ATR8 operates synchronously with this motor rotation pulse signal I2.
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 The remote control signal 14 is output to control the operation of ATR8M so that the information matches, and the projector 5 and AT
Synchronous operation of R8M is performed.

Using the system configured as above, sound effects,
This section describes the procedure for adding sound to music.

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-7D.
to be loaded. After loading both films, the playback start position is aligned so that the image and sound match. Sound effect,
As for music, the necessary sounds for each scene are determined in advance and recorded on magnetic tape according to the scenario, and the music tape is played to the ATR8M and the sound effect tape is played to the ATR8S.

After completing the above preparations, ATR8M.

All systems except 8S are operated, and while monitoring the movie projected on screen 6 and the lines played from Magdaba 7D, when the scene where music and sound effects are to be inserted comes, each tape is ATR applied
8M and BS are operated, and the music is dubbed onto the magnetic film loaded into the Magdaba-7M, and the sound effects are dubbed onto the magnetic film loaded into the Magdaba-73. At this time, if there are any unclear parts of the dialogue, after-recording is performed on the magnetic film loaded in the Magdabar-7D through the microphone 10 while monitoring the screen as shown in the figure. Furthermore, sound effects that are not prepared on sound effect tapes may be recorded directly from microphones onto magnetic film. Depending on the scene, multiple people may be speaking at the same time, or multiple types of sound effects may be used at the same time, so it becomes necessary to increase the number of magnetic films and the number of recording channels, which in turn requires a greater number of Magda bars to be operated synchronously. . In the above method,
Music, sound effects, additional recordings, and after-recording of lines will be 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 staff.

Once the creation of the three types of sound (dialogue, sound effects, and music) has been completed, the film production staff will conduct a comprehensive evaluation of the film and sound. At this time, the audio is still being recorded for each channel, so it is mixed down and played back by the mixer 15 so that the audio is similar to the audio played in a movie theater, as shown in Figure 8. . If the overall evaluation is OK, the mixed down audio is dubbed directly onto the magnetic film loaded in the Magda Bar 7, and this becomes the master magnetic film. If the overall evaluation is NG, the movie film and all the magnetic films on which audio has been recorded go back to the manual cutting and editing process using the film editing machine 1 and subsequent processes to add or replace sounds, etc.

The audio mixing process shown in FIG. 8 will be described in detail. Load the editing method movie film into the projector 5, transfer the editing method magnetic film with recorded sound effects to Magdaba-7S, and transfer the editing method magnetic film with dialogues recorded to Magdaba-7D.
Editing method magnetic film with music recorded on Magdaba-7M
Load into. After loading, the start position of each film is adjusted so that the image and sound are reproduced in sync. on the other hand,
In order to record the mixed down sound, an unrecorded magnetic film is loaded into Magdabar 7. After such preparations are completed, each device is operated to begin audio mixing work. At this time, each magda bar operates in synchronization with the motor rotation pulse signal 12 output from the projector 5. If you have a small number of Magda bars,
As shown in the figure, a multi-channel ATR 8 may be added and operated to increase the number of channels. The multi-channel ATR 8 runs in synchronization with the projector 5 via the synchronizer 9 in the manner described above.

Each sound output from the Magdabars 73, 7D, 7M and ATR 8 is input to the mixer 15, where it is mixed down to the number of channels played in the movie theater. Normally, 35mm movies are mixed down to 4 channels of audio, and 70mm movies are mixed down to 6 channels of audio. Mixer 15
is usually placed in a room with a screen 6, and speakers are placed in this room, just like in a movie theater, to produce audio in accordance with the scene projected on the screen 6.

Adjustments are made to optimize the balance, etc., and the audio output from the mixer 15 is recorded onto the magnetic film loaded in the Magdabar 7.

If the overall evaluation is NG during this process, the editing will be done again.

[Problem to be solved by the invention]

Conventional video and audio editing is performed through the process described above, and the editing work is currently mainly performed by hand-cutting magnetic film. During hand-cut editing, the magnetic film is manually put on and removed from the film editing machine many times, and cut and connected again. It is easily damaged, resulting in deterioration of sound quality, and since audio recording on magnetic film is an analog recording method, the deterioration of sound quality due to dubbing increases as dubbing is repeated many times until the final sound is created. It's coming. Furthermore, as the number of magnetic films used increases, the amount of editing work increases proportionally, and there is also the problem that managing them becomes difficult.

This invention was made in order to solve the above-mentioned problems, and uses a recording medium that digitally records audio including address information, and allows the audio to be edited entirely electronically without manual editing. The objective is to obtain a video and audio editing system that can perform the following functions.

[Means to solve the problem]

The video and audio editing system according to the present invention includes a means for analog-to-digital conversion of the input and output video and audio of the system according to external equipment, and an address provided on an editing magnetic film that can run in perforation synchronization with a movie film. means for generating address information identical to the above information for video and audio, means for generating identification information for use in editing, and means for recording video and audio in the form of digital signals on a recording medium together with address information and identification information. and a means for storing the discontinuous parts of the atlas information of the editing magnetic film that has been hand-cut and edited in exactly the same way as the hand-cut and edited movie film, means for editing and reproducing the video and audio recorded from the recording medium to match the image;
For the above various means to synchronize and follow external equipment,
The apparatus is equipped with means for issuing instructions for recording, playback, and editing.

[Function] Since the video and audio editing system according to the present invention has the above-described configuration, audio editing can be performed without directly touching the recording medium, and there is no damage to the recording medium. Furthermore, since audio can be recorded in the form of a digital signal and digital dubbing is possible, it is possible to prevent deterioration in sound quality due to deformed dubbing. Furthermore, identification information can be added, making it easier to manage and access video and audio.

〔Example〕

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

FIG. 1 is a diagram showing the configuration of a video and audio editing system according to an embodiment of the present invention.

■ In the figure, the video and audio editing system is the editing device main body I6.
and an operation console 17. Editing device body I6
1 B, PCM (PulseCode)
data storage unit 19 for storing modulated audio signals, A/D conversion circuit/D/A
A/D, D/A, DIO unit 20 consisting of a conversion circuit/digital audio interface circuit. The operation console 17 is composed of a synchronizer 21 that performs synchronization with external equipment, and a keyboard 22 that gives commands to operate the system and inputs information necessary for editing.
It is comprised of a monitor 23 that displays the operating status of the system, editing information, etc., and a flexible disk drive 24 that records and plays back a flexible disk on which system programs, editing information, etc. are recorded.

A jog shuttle 25 is attached to the keyboard 22 in order to accurately find an editing point, and by rotating this jog shuttle 25, the position of a single audio sample can be determined. kM packing device main body 16 operation console 1
7 is connected by a dedicated cable, and commands and data 26 are transmitted.

FIG. 2 is a detailed configuration diagram of the editing device main body 16. In the figure, the A/D, D/A, and DIO units 20 are analog audio signal input terminals for multiple channels (8 NAL
OG IN ) 27 and A connected to each terminal
/D conversion circuit 28. D/A conversion circuit 29 for multiple channels and analog audio signal output terminal (AN^LOG 0UT) 30 that outputs each output signal to the outside, digital audio signal input/output terminal for multiple channels (DIG
ITAL IN10UT) 31 and a digital audio interface circuit connected to each terminal. Here, the digital audio signals to be input and output are defined by, for example, IEC958. It is compliant with the digital audio interface format.

The data storage unit 19 controls a memory circuit 33 for a plurality of channels, a plurality of disk drive devices 34 that record and play back a large amount of data, such as an optical disk, and these disk drive devices 34. It is composed of a disk drive interface circuit 35.

The memory circuit flII 33 can store, for example, 10 seconds worth of audio samples for each audio channel, and by changing the address using the jog shuttle 25 described above, it is possible to accurately search for editing points in units of samples.

Although tape may be used as a large-capacity data storage medium, this system uses a disk with a high access speed to realize faster electronic editing. The processing unit 18 includes a system controller 36, a digital signal processor 37 . Operator console interface circuit 38. It is composed of a clock generator 39, an external clock input terminal (CLK IN) 40 and an internal clock output terminal (CLK 0UT) 41 connected to the clock generator 39.

The system controller 36 is a main control device that controls the entire system, and outputs operation commands and data to each circuit 5, inputs status information and data from each circuit, and records it.

It realizes playback and various editing functions. The digital signal processor 37 adjusts the gain of the audio sample;
The clock generator 39 generates various clock signals necessary within this system by performing cross-fading, etc., and generates various internal clock signals locked to the external clock signal input from the external clock input terminal 40. You can also do that. The operation console interface circuit 3 has a function of inputting commands and data output from the operation console 17, and conversely outputting commands and data to the operation console 17.

The synchronizer 21 has a time code signal input terminal (T, C, IN) 42 for inputting the above-mentioned address code transmitted from an external device, for example, a time code signal specified by 1EC461, and a time code signal input terminal (T, C, IN) 42 connected thereto. A time code reader 43 that decodes and reads time code signals, a time code generator 44 that orders time code signals in a predetermined format, and time code signal output terminals (T, C, 0
UT) 45, remote signal input terminal (REMOTE IN) for inputting remote signals from external equipment 46,
It is composed of a remote signal output terminal (REMOTE 0UT) 47 that outputs an external device remote signal, and a remote interface circuit 48 connected to remote signal input/output terminals 46 and 47. In addition to time information, the time code signal specified by IEC461 includes a user data area in which the user can set arbitrary information and transmit it. A time code signal can be generated by carrying identification information of the time code. This identification information includes scene numbers, cut numbers, and other information necessary for movie editing.

Next, recording and playback of this video and audio editing system will be described. When inputting and recording analog audio from the analog audio input terminal 27, the input terminal to which the audio is input is specified on the console 17, and the identification information of the sound material 7 is input. Also, adjust the recording level as necessary. The analog audio signal input from the analog audio input terminal 27 is processed by the A/D conversion circuit 2.
The analog audio signal is converted into a digital audio signal and transmitted to the disk drive interface circuit 35 via the memory circuit 33. The disk drive interface circuit 35 adds error detection and correction codes to the digital audio signal and converts it into a predetermined data format suitable for recording on the optical disk loaded in the disk drive device &34. Further, the disk drive interface circuit 35 is connected to the system controller 3.
From step 6, input the time code and identification information of the voice input from the console, add error detection and correction codes,
The data is converted into a predetermined data format and transmitted to the disk drive device 34 together with the digital audio code.

The disk drive device 34 records the transmitted signal on an optical disk. As a recorded time code,
Either the time code signal input from the time code signal input terminals 42 or 8 or the time code signal generated internally can be selected.

When recording a digital audio signal, use the console 17 to specify the input terminal to which the digital audio signal is manually input, input a reference signal from an external device that transmits the digital audio signal to the external clock input terminal 40, and system Set to external clock operation mode and record. The digital audio signal inputted from the digital audio signal input/output terminal 31 is extracted with a digital audio signal portion by the digital audio interface circuit 32, and as described above, is passed through the memory circuit 33 and the disk drive interface circuit 35 to the disk drive. The information is recorded on the optical disc in the storage W34.

When reproducing a signal recorded on an optical disc, the disc drive device 34 reads the signal recorded on the optical disc, and the disc drive interface circuit 3 reads the signal recorded on the optical disc.
Send to 5. The disk drive interface circuit 35 converts the data string converted into a predetermined data format back to the original base 9 band signal, performs error detection and correction, and sends the digital audio signal to the memory circuit 33 with time code and audio identification information. is sent to system controller 36.

The digital audio signal that has passed through the memory circuit 33 is output to the D/A conversion circuit 29 or the digital audio interface circuit 32.

The D/A conversion circuit 29 converts the digital audio signal into the original analog audio signal and outputs it to the outside from a designated analog audio signal output terminal 30.

The digital audio interface circuit 32 converts the digital audio signal output from the memory circuit 33 into
The audio signal is converted into a signal in the digital audio interface format defined by G.958, and is output to the outside from the designated digital audio signal input/output terminal 31. As mentioned above, the memory circuit 33 has a capacity to store 10 seconds worth of audio samples, and allows the system to be placed in the still mode so that the audio samples stored in the memory can be played back at any speed. By doing this, it is possible to easily find the editing point of the audio.

On the other hand, the time code and audio identification information sent to the system controller 36 are sent to the console 17 via the operation console interface circuit 38 and displayed on the monitor 23 of the console. Furthermore, if necessary, the signal is also sent to the time code generator 44, which generates a time code signal with audio identification information placed in the user data area, and outputs it to the outside from the time code signal output terminal 45. .

As described above about the recording process and the playback process, this system is equipped with recording circuits and playback circuits for multiple channels, so recording and playback can be performed simultaneously.
This can be used, for example, when performing after-recording of lines while monitoring previously recorded audio.

Now, we will discuss how to edit movie audio using this editing system. Since the sound to be edited must be edited in accordance with the motion picture film, a magnetic film that can run in synchronization with the motion picture film, that is, a hole in the edge of the film for advancing the film, is driven in synchronization with the motion picture film. A time code signal indicating an absolute address is recorded on a magnetic film located in the area, and the same time code signal is also added to the audio so that the image and audio are synchronized via the magnetic film. During movie shooting, an ATR capable of recording and reproducing time code signals is used to record continuous time code signals from the start of shooting, and audio (mainly dialogue) is recorded, and the film is shot after the shooting and recording is completed. Movie film (negative film) is developed to create movie film (positive film) for editing.

On the other hand, the audio and time code signals are dubbed onto the disk of the main editing system using the ATR on which the recorded sounds were recorded. A magda bar is also used to dub the time code signal to any audio track or data-only track on the magnetic film. At this time, if necessary, the recorded audio may be dubbed to another audio track. When dubbing to a disc, the identification information of this audio material (dialogue) is input to the console 17.
Enter more information and record it at the same time as the time code to make it easier to manage the disc later.

Identification information is stored in the flexible disk drive 24 of the operation console.
It is also recorded on the flexible disk for recording editing information. After completing the pre-editing preparations, the editing work using the film editing machine begins.

As shown in Figure 3, a time code reader (not shown)
A film editing machine IA is used which has a rotating pulse generator (not shown) attached to the rotating mechanism for applying the film, and outputs the time code signal from this to the time code signal input terminal 42 of the editing system. A rotation pulse signal that is input and output in the same manner is input to the external clock input terminal 40. Hang the editing movie film 2 on the rotating mechanism part on the back side of this film editing machine IA, hang the magnetic film 3A for editing on which the time code signal is recorded on the rotating mechanism part on the front side, and read both films at the same time. Make them run parallel. Time 3 The time code signal is reproduced by a read-only magnetic head (not shown) attached to the rotating mechanism part on the front side, and output to the outside via the built-in time code reader.

When the editing movie film 2 and the editing magnetic film 3A on which the time code signal is recorded are run simultaneously, the editing system operates according to the cycle of the rotation pulse signal output from the film editing machine IA and is reproduced. The audio signal portion to which the same time code signal as the time code signal is added is reproduced.

The time code and identification information of the reproduced audio signal are displayed on the monitor 23 of the console, so that it can be seen at a glance which part of which type of audio is being reproduced.

On the other hand, a time code display 49 that displays the time code corresponding to the image projected on the viewer 4 is also attached to the top of the film editing machine IA, and it goes without saying that the image and audio match. Since the time code is played back, the same four time codes are displayed on the monitor 23 and the time code display 49. Continuing to run the editing film, when an unnecessary part such as an NG scene is reached, use the time code for the first frame of the film to be deleted as the skip start point, and the time code for the last frame as the skip end point on the operation console. Input from the keyboard 22. The time code of the input skip start point and the time code of the skip end point are
The information is recorded on the flexible disk for recording editing information in 4. After the key personnel are finished, edit movie film 2
Then, the unnecessary portions of the editing magnetic film 3A are deleted in exactly the same manner, and then spliced together again.

By repeating such operations, the editing movie film 2 and the editing magnetic film 3A are manually cut and edited, and only the editing point information is manually input to the main editing system. After all the hand-cut editing of the editing movie film 2 and the editing magnetic film 3A is completed, if you want to monitor the audio at the same time, the audio will be played back using the editing point information recorded on the flexible disk for recording editing information. be done. Since the time code recorded in the hand-cut editing portion of the editing magnetic film 53A is discontinuous, the audio signal must be played back accordingly. To do this, when the digital audio signal played from the optical disc reaches the part corresponding to the time code of the skip start point recorded on the flexible disc for recording editing information, from that part it corresponds to the time code of the skip end point. Skip the section up to the part where
Continue to play the digital audio signal from the next section.

During the skip operation, a search time is required to reach the area where the target time code is recorded, so this time is absorbed by the memory circuit 33.

That is, since the memory circuit 33 has a capacity to store 10 seconds worth of audio samples, the memory circuit 33
While sequentially outputting the input audio samples, the optical disk is searched, and when the search is completed and the destination audio sample is sent, it is stored as the final sample of the previous part. Store in the memory corresponding to the address next to the current memory address. In this way, continuous audio reproduction G is performed.

According to the operations described above, an audio signal is played back according to hand-cut and edited motion picture film and magnetic film, and at the same time, this audio signal is recorded on another channel on the same optical disk or on another optical disk. , and is saved as an edited audio signal. At this time, the original discontinuous time code signal is also recorded, making it easier to manage the audio signal after editing. Furthermore, if identification information is entered manually on the keyboard 22 for the audio signal after the editing is completed, it will be recorded together with two types of time code signals.

This new identification information is also recorded on the flexible disk for recording editing information, making it possible to re-edit the audio signal after editing is completed.

The above explanation involves hand-cutting the editing movie film and editing magnetic film while monitoring the audio signal.
We have described the method of manually inputting the editing point information each time, but first, we manually cut out only the editing movie film and the editing magnetic film, and then used the magnetic film after editing to create the audio. Editing of the signal may be performed later.

In this method, the magnetic film after editing is run through the rotating mechanism on the front side of the film editing machine IA, the reproduced time code signal is read, discontinuous parts of the time code signal are detected, and the previous and subsequent time codes are If you record the information as editing point information on a flexible disk for recording editing information, and edit the audio signal based on that information, there will be no need to manually edit the editing information. .

Next, the editing process using the film editing machine is completed, and the after-recording process of adding sound effects, music, and dialogue using this editing system will be described.

Figure 4 shows the system configuration for performing after-recording of lines. In the figure, reference numeral 5 denotes a movie projector into which a movie film according to an editing method is loaded. 7
is a magdabur, into which magnetic film 3A on which the time code signal of the editing method is recorded is loaded. The motor rotation pulse signal 12 outputted from the projector 5 is manually inputted to predetermined input terminals of the main editing system and the Magdabar 7, and the main editing system and the Magdabar 7 are operated synchronously with this motor rotation pulse signal. The time code signal reproduced by Magdabar 7 is inputted to a predetermined input terminal of the main editing system.

Since the lines to be after-recorded are recorded on a new channel on the optical disk where the lines of the editing method were recorded, or on another optical disk, the keyboard 22
Specify the recording area and input the identification information manually. Then, the entire system is activated and the after-recording of the lines begins.

The actor performs after-recording of his lines through the microphone 10 while monitoring the screen projected on the screen 6.

At this time, as a general rule, we do not redo the after-recording unless we make a mistake in the lines or make any mistakes, and corrections are made later using the editing system. Once the after-recording of the lines has been completed, a rehearsal playback follows. During rehearsal playback, if you find that the movement on the screen does not match the after-recording audio played from the editing system, return to that scene, temporarily pause the entire system, and press the button on the keyboard 22. Turn the jog shuttle 25 to find an audio portion that matches the screen, and enter the difference between the time code corresponding to that portion and the actual time code as information for moving the audio signal forward or backward. This information allows the editing system to play the after-recorded audio forward or backward, so that the audio matches the movement on the screen.

Also, when after-recording lines, the lines may start later than on-screen and end earlier than on-screen. For such cases, this editing system has a function that allows you to change only the length without changing the tone of the voice, and using this function, you can change the number of seconds at the beginning of the line and the length at the end. It is possible to stretch and play several seconds each to fit the screen. Contrary to this example, if the dialogue starts earlier than the screen and ends later, this function allows the audio to be compressed and played back.

Also, during rehearsal playback, there are cases where it is desired to change only certain lines. In response to such requests, this system has a function to replace audio signals, and this function can be used to replace lines. At this time, if the time differs from the previous line, you can use the above-mentioned function to change the length of the sound to match. Since the various editing functions described above are used to edit the after-recorded lines, the burden on the actors is significantly reduced compared to the past.

In addition, for sound effects and music, prepare the sounds necessary for each scene according to the scenario in advance, and then dub them according to each scene from the analog audio input terminal or digital audio input terminal of the main editing system. Just go. At this time, the sound effects are recorded on an optical disk for sound effects, and the music is recorded on a prepared optical disk exclusively for music. If you rehearse the dubbed audio and it doesn't match the screen, edit it using the editing function described above.

When the number of channels to be used is insufficient, the number of channels is secured by operating multiple editing systems in parallel or by dubbing the audio signal of the editing method to another multi-channel digital ATR or the like.

For dubbing to other multi-channel digital ATR,
The signal output from the digital audio input/output terminal 31 of the main editing system is input to the digital audio input terminal of the multi-channel digital ATR, and the clock signal output from the internal clock output terminal 41 and the time code signal output terminal are input. The time code signal output from 45 and the remote signal output from signal output terminal 47 are input to the respective input terminals of the multi-channel digital ATR, and this editing system is used as the master.
This can be done by operating the multi-channel digital ATR as a slave. The output time code signal is not the original discontinuous time code of the magnetic film in the editing method, but is a continuous time code, and audio identification information is placed in the user data area. .

We will describe the case in which this editing system is applied to the work of completing the three types of sound creation, dialogue, sound effects, and music, performing a comprehensive evaluation of the movie and audio, and performing mixing.

In FIG. 5, the movie projector 5 is loaded with an edited movie film. The magnetic film 3A on which the time code signal of the editing method is recorded is loaded into the Magdabar 7. An optical disc recorded with the lines of the editing method performed during the previous sound input process,
An optical disk on which music of the same editing method is recorded and an optical disk of sound effects of the same editing method are loaded into the disk drive devices 16D, 16M, and 16S in the editing apparatus main body, respectively. At this time, 16 editing devices are added according to the required number of channels. Each editing device main body and the magda bar 7 receive the motor rotation pulse 12 outputted from the projector 5 and operate in synchronization with this. Each editing device main body is
Input the time code signal played by Magdaba-7,
The same number 3 reproduces and outputs the audio signal to which the imcode signal is added. As shown in the figure, editing devices operating in parallel can now be controlled by a single console 17, allowing a single operator to control the playback of dialogue, music, and sound effects. become. Editing device main body 16
Each digital audio signal output from D, 16M, and 16S is input to a digital mixer 150, where it is mixed down to an arbitrary number of channels to be played back in the movie theater. The digital audio signal output from the digital mixer 15D is input to the multi-channel digital ATR 8D and recorded on the magnetic tape.

Multi-channel digital ATR8D is, for example, 16S
It is controlled by a remote signal output from the main body of the editing apparatus, and a new continuous time code signal output from the editing apparatus is inputted and recorded in a dedicated recording area separate from the previous digital audio signal.

Through the above process, the final sound used in the movie is produced, and finally the video and the final sound are recorded on the same video film.

Here, a multi-channel digital ATR8D is used as a device for recording the final audio, but the editing system may also be used to record the final audio on an optical disc.

Although an optical disk is used as a recording medium in the editing apparatus main body, the present invention is not limited to this, and a magnetic disk or magnetic tape may be used. However, if magnetic tape is used, the access speed will be slow as described above, but this will not be a problem if the memory circuit is added to compensate for the slow access speed. Also, since the cost of the disk itself is high, it is possible to avoid an increase in cost by using magnetic tape, which is cheaper compared to the disk, and in that case, it is recommended to record the audio material that has been edited to a certain extent on the magnetic tape. Just do it.

Further, in the above embodiment, commands and data are input using the keyboard 22 of the operation console 17 or the jug shuttle 25, but it is also possible to input necessary information using a mouse, touch pen 5, etc. Good too.

In addition, in order to perform editing, a time code signal is recorded on an arbitrary audio track of a magnetic film, and after hand-cutting editing is performed, the discontinuous time code signal is erased. You may re-record a new continuous time code signal, or you may leave the original time code signal and record the continuous time code signal on another audio track.By doing this,
Re-editing of the corresponding motion picture film can be facilitated.

〔Effect of the invention〕

As described above, according to the video and audio editing system according to the present invention, the same address code is added to the magnetic film capable of running in synchronization with the motion picture film and the audio signal corresponding thereto. The magnetic film on which the code is recorded is hand-cut and edited, and the discontinuous parts of the address code recorded by editing can be used as editing information to electronically edit the audio signal, so it can be directly recorded on the audio signal recording medium. This eliminates the need to touch the device, thereby avoiding deterioration in sound quality due to damage. Furthermore, since the audio signal can be recorded in the form of a digital signal, there is an advantage that the sound quality does not deteriorate even if dubbing is performed repeatedly.

Furthermore, by adding identification information to each audio material, it is possible to easily manage and access the video and audio.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a movie audio editing system according to an embodiment of the present invention, FIG. 2 is a detailed configuration diagram of the main body of the editing device of the movie audio editing system shown in FIG. Figure 4 shows an example of how the movie audio editing system is applied to the cutting and editing process. Figure 4 is a diagram showing how the movie audio editing system is applied to the sound addition or after-recording process. Figure 5 is how the movie audio editing system is applied to the mixing process. Figure 6 shows a conventional film editing machine used for hand-cutting editing; Figure 7 shows a film audio editing system using conventional equipment for sound insertion or after-recording. , FIG. 8 is a diagram showing a movie audio editing system using a conventional device in the mixing process. In the figure, 17 is the operation console, I6 is the editing device main body, and I8
1 is a processing unit, 19 is a data storage unit, 20 is an A/D, D/A, DIO unit, 21 is a synchronizer, IA is a film editing machine with a time code reader and a rotary pulse generator, and 3A is a unit in which a time code signal is recorded. 7 is a magnetic film recording/reproducing machine (Magdavar). Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] (1) A video and audio editing system in which video and audio are synchronized via an editing magnetic film that can be perforated and run in synchronization with the video film; A means for converting analog-to-digital signals according to the equipment; a means for generating address information for video and audio that is the same as the address information provided on the magnetic film for editing; and a means for generating video and audio identification information for use in editing. means for recording said video and audio in the form of a digital signal on a recording medium together with said address information and identification information; and said editing magnetic material that has been hand-cut and edited in exactly the same way as the hand-cut and edited video film. means for storing discontinuous portions of film address information as editing point information; means for editing and reproducing the video and audio recorded from the recording medium so as to match the image by referring to the editing point information; For the above various means to synchronize and follow external equipment,
A video and audio editing system characterized by comprising: means for issuing instructions for recording, playback, and editing.