KR100281762B1 - Editing of VRF using audio signal - Google Patents

Abstract

The present invention relates to a method of editing a V-C, in which the audio signal of the dubbing completed portion is not interrupted along with the video signal, so that the V-CD can be edited with continuity when the video is dubbed. The present invention relates to a method for editing V-Cal using an audio signal.

Accordingly, the V-editing method using the audio signal of the present invention comprises: a dubbing completion determination process of determining whether a dubbing end time is completed; A sound signal reference level determining step of determining whether a sound signal to be dubbed below a reference time level is determined when the dubbing function is completed; When the sound signal to be dubbed as a result of the sound signal reference level determination process is below the reference level, the dubbing function is terminated, and as a result of the sound signal to be dubbed as a result of the sound signal reference level determination process is not lower than the reference level. In addition, it consists of a set time lapse judging process that determines whether the set time has been reached, so that the audio signal can be naturally connected even if only the video signal is monitored and edited in a quick edit, so that editing through a general home VR is more effective. It is easy to achieve the effect of improving the ease of use and functionality of the system.

Description

How to edit V-Cal using audio signal

The present invention relates to a method of editing a BC-AL, and more particularly, in dubbing a video signal and an audio signal of a BC-AL, in order to prevent the audio signal of the dubbing-completed portion from being interrupted along with the video-signal, dubbing of the BC-AL. The present invention relates to a method for editing V-Cal using an audio signal which improves the efficiency of the system as the visual and audio signals can be edited.

In general, V-Cal is provided with a plurality of functions to reproduce or record and record the video signal and sound (audio) signal. This function allows you to edit video signals and audio signals from the VRF to the other.

Herein, the function of the conventional VRC will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a conventional editing function of V-Cal. 1, a microcomputer 78 which determines input / output of sound signals and graphic signals and controls the following functions, and reproduces the video signal of the VCD according to the control signal of the microcomputer 78, or The AV signal switching unit 75 for switching the signal flow so that the video can be recorded with a TA-GR, and the input and output terminals of the AV signal switching unit 75 are connected to the audio signal and the video signal in three or four channels. An audio signal processor 77 and a video signal processor 76 to modulate, and a record bias adjuster configured to bias and oscillate a signal applied from the audio signal processor 77 or an audio signal supplied to the audio signal processor 77. And the input / output signals of the record bias control unit 80 and the video signal processing unit 76 to the magnet tape of V-Cal. Connected to the control head of the record head adjusting unit 80 and the record bias adjusting unit 80 to receive a volume control signal through the key panel 84 to change the bias input resistance of the record bias adjusting unit 80. It is composed of an electron volume (79) to make.

In addition, the ALPHhead unit 81 receives an audio signal from the record bias control unit 80 and records an audio signal according to the audio signal, and an image signal from the video signal processor 76. It is made of a video recording head 83 for receiving the video recording according to this, the external terminal 86 is connected to the output terminal of the AV signal switching unit 75 so that the audio signal and the video signal input and output to the outside.

Hereinafter, the operation of the conventional V-Cal according to the above configuration will be described.

First, the user inserts the original video tape into one V-C (first V-C), inserts the target video tape into the other V-C (second V-C), and then dubs through the key panel 84. Enter a predetermined key. Then, the microcomputer 78 of one VAL recognizes this and provides a reference frequency according to the dubbing to the electronic volume 79. The AV signal switching unit 75 is controlled to output an audio signal and a video signal through an external terminal 86.

Therefore, one side of the VRF converts an audio signal and an image signal of the original video tape from the audio Alphead 82 and the Video Alphead 83 into an electrical signal modulated at a predetermined frequency. The modulated sound signal is output through the record bias control unit 80 as an amplified signal of a predetermined level, and then the audio signal processor 77 detects only the sound signal. In addition, the video signal output through the video image head 83 is corrected and output through the video signal processor 76.

Thus, the audio signal and the video signal scanned by the RF head unit 81 through the AV signal switching unit 75 are applied to the external terminal 86. Then, the second V seed receives an audio signal and a video signal, and is recorded and recorded on the target tape through an RPI head provided in the second V seed.

At this time, if the user wants to record only a certain portion, the recording time is reserved or the user manually controls the start and end of the recording. For example, if the recording time is reserved, the recording start and end times are set through the key panel 84. Then, the microcomputer 78 continuously receives the time data from the timer (not shown) and operates the system of the first VRC to perform recording with the second VRC when it matches the set time.

Alternatively, when the user wants to perform recording with the second V-C while monitoring the first V-C, the recording function is performed using the recording start key and the recording end key of the key panel 84. Therefore, the recording function generally used is to control the on / off of the audio signal and the video signal, which makes editing a lot difficult for an inexperienced user.

That is, when recording and recording the video signal and the audio signal of the first VC with the second VCA, the video signal and the audio signal to be monitored are directly recorded through audio-visual, so that each VRL has a general playback speed. Since the work must be performed at, the user's work efficiency is reduced with time loss. On the other hand, if the recording is to be performed at each of the V-AL at a constant speed, the signal to be monitored is a video signal, and the recording is performed in a state in which an audio signal is not output or accurate monitoring is performed.

Therefore, since only video signals need to be monitored and recorded, recording is performed regardless of sound signals. This causes a discontinuous sound signal to be recorded, which causes a problem of V-alarm editing.

The present invention has been made to solve the above problems, and an object of the present invention is to make the V-CAL editing centered on the voice signal, so that the connection of the voice signals is smooth and the audio signal is improved. It is to provide a method of editing the VRC used.

According to an aspect of the present invention, a method of editing a V-Cal using an audio signal according to an aspect of the present invention includes: a dubbing completion determination process of determining whether a dubbing end time is completed after a dubbing function is performed; If it is determined that the dubbing has not been completed as a result determined in the dubbing completion determination process, continuously dubbing is performed, and if it is determined that the dubbing function is completed, it is determined whether the currently dubbed sound signal is below a predetermined reference level. Sound signal reference level determination process; When the sound signal to be dubbed as a result of the sound signal reference level determination process is below the reference level, the dubbing function is terminated, and as a result of the sound signal to be dubbed as a result of the sound signal reference level determination process is not lower than the reference level. When the set time has not elapsed, feedback is made to the sound signal reference level determination process when the set time has not elapsed, and the dubbing function is forcibly terminated when the set time has elapsed. .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram for explaining general VRC editing.

2 is a block diagram for explaining the present invention.

FIG. 3 is a flowchart illustrating operation control of a microcomputer used in FIG. 2.

<Explanation of symbols for main parts of drawing>

10: micom 12: electron volume

14: record bias adjusting unit 16: audio signal processing unit

18: video signal processing unit 20: audio detection unit

22: AV signal switching unit 34: timer

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a block diagram of VSI for explaining the present invention. 3 is a flowchart illustrating the operation of the microcomputer used in FIG. 2. First, the present invention with reference to FIG. 2 is connected to an input terminal of the microcomputer 10 and the input terminal of the microcomputer 10 so as to determine the input / output of the sound signal and the graphic signal, and to control the following functions. An AV signal switching unit 22 for switching a signal flow so as to reproduce or record the video signal of the V-CD according to the timer 34 and the control signal of the microcomputer 10; An audio signal processor 16 and a video signal processor 18 which are connected to an input / output terminal of the AV signal switching unit 22 to modulate an audio signal and a video signal into three or four channels, and from the audio signal processor 16 The record bias control unit 14 and the record bias control unit 14 which receive the applied signal or the audio signal supplied to the audio signal processor 16 and bias oscillate. Audio detection unit 20 for detecting the level of the audio signal by receiving the output acoustic signals in parallel, and an Alpi head unit 26 for storing or reproducing the input / output signals of the video signal processing unit 18 to the magnet tape of V-Cal. And an electronic volume 12 connected to the control terminal of the record bias controller 14 to receive a volume control signal through the key panel 24 to change the bias input resistance of the record bias controller 14. It consists of.

In addition, the Alphead unit 26 receives an audio signal from the record bias control unit 14 and records an audio signal according to the audio signal and the video signal processing unit 18. It consists of a video recording head 30 for video recording according to the application, and the external terminal 32 is connected to the output terminal of the AV signal switching unit 22 so that the audio signal and the video signal input and output to the outside.

Hereinafter, the operation of the present invention according to the above configuration will be described.

First, when a user wants to dub a video signal and an audio signal from the first VLC to the second VRC, the users mutually compatible the VCDs and make a recording reservation through the key panel 24 or perform a key operation according to the recording. (Step 1). In the case of recording reservation here, when the counting is completed by reverse counting a predetermined time through the timer 34, the dubbing of the VRC is started. Alternatively, after starting the recording of the BC-R, recording is performed for a predetermined time to stop recording when the reverse counting by the timer 34 is completed.

On the other hand, the user may perform dubbing using the recording start and recording completion keys as well as monitoring through the first VRT. When the automatic recording using the timer 34 of the dubbing function or the manual recording from the user is started, the microcomputer 10 controls the dubbing function of the VRC mechanism to be performed. Accordingly, the first VRF detects an audio signal and an image signal of the original video tape from the audio Alphead 28 and the Video Alphead 30. The audio signal is output as an amplified signal of a predetermined level via the record bias adjusting unit 14, and then the audio signal processing unit 16 detects only the acoustic signal. In addition, the video signal output through the video image head 30 is corrected and output through the video signal processor 18.

Thus, the audio signal and the video signal scanned by the RF head unit 26 are supplied to the external terminal 32 through the AV signal switching unit 22. Then, the second V seed receives an audio signal and a video signal, and is recorded and recorded on the target tape through an RPI head provided in the second V seed (step 2).

At the same time, the audio detection unit 20 continuously detects the sound signal supplied to the second VR through the external terminal 32. This digitizes the analog sound signal and transmits it to the microcomputer 10 as predetermined data.

Then, as the microcomputer 10 receives the time data through the timer 34, the microcomputer 10 determines whether the recording set time has been reached. Or, it is determined whether a key input for recording stop is made by the user (step 3). If it is determined that the recording stop key of the user has not yet been entered within the set end time, the process returns to step 2 to perform the continuous recording function.

On the other hand, if it is determined in step 3 that the end time is completed, the audio level output from the audio detector 20 is detected through the microcomputer 10. Then, it is determined whether the audio level is below a predetermined reference value, which is to determine whether the audio signal added to the video signal is directly, and detects that the audio level is not the main noise or the main audio signal (step 4).

Accordingly, if it is determined that the main voice signal to be dubbed is detected despite the result determined in step 4, that is, the completion time of dubbing, it is determined whether the set time has elapsed (step 5). If it is determined that the set time has not elapsed, the process proceeds to step 4 to determine whether there is a continuous main audio signal. Although the time set in step 5 has not elapsed, dubbing is terminated when the main voice signal is not detected in the current dubbing process, that is, when a voice signal below a predetermined level is detected.

On the other hand, if the main audio signal is continuously detected within the set time of step 5, the dubbing function is performed until the set time elapses. Therefore, when the set time elapses in step 5, the dubbing function is stopped regardless of whether the main audio signal is continuously detected.

As described above, the present invention determines whether or not the end of the dubbing by determining the presence or absence of the main voice signal dubbed after the dubbing end time, thereby preventing dubbing from being stopped in the state in which the voice signal is blocked in the middle of the dubbing. In the fast editing, the audio signal can be naturally connected even if only the video signal is monitored and edited, so that the editing is easily done through general home V-Cal, thereby improving the convenience of use and the functionality of the system. .

Claims (1)

In the editing method of VSEAL, A dubbing completion determination process of determining whether the dubbing end time is completed after the dubbing function is performed (step 3); If it is determined that the dubbing has not been completed as a result determined in the dubbing completion determination process (step 3), dubbing is continuously performed, and if the dubbing function is determined to be completed, the currently dubbed sound signal is below a predetermined reference level. Determining a sound signal reference level (step 4); If the sound signal to be dubbed as the result of the sound signal reference level determination process (step 4) is less than the reference level, the dubbing function is terminated, and the sound signal to be dubbed as the result of the sound signal reference level determination process If not, the set time elapsed determination process of determining whether the set time has been reached (step 5); If the set time has not elapsed in the set time elapsed judging process (step 5), the audio signal is fed back to the reference level determination process (step 4) and the dubbing function is forcibly terminated when the set time has elapsed. Editing of VRF using a signal.