KR0166240B1 - Audio dubbing method and apparatus thereof - Google Patents

Abstract

The present invention relates to a dubbing device for a composite product and a control method thereof, and further comprising: a microcomputer that detects a vertical synchronous signal from a VRC deck, outputs a control signal according to the detection result, and controls the entire system; And an electronic volume for adjusting the audio signal level output from the optical disk player, and an integrating circuit for detecting an audio signal from the electronic volume, integrating the audio signal, and outputting the audio signal to the microcomputer. If the vertical sync signal is detected from the deck and the vertical sync signal is not detected, the audio signal level to be dubbed can be faded out to finish the dubbing smoothly, preventing the audio signal from being dubbed to the part where no video signal is recorded As well as optical disc player and Ease of use is also improved by stopping the ERC deck.

Description

Audio dubbing device for composite products and its control method

1 is a block diagram of a composite product for explaining a conventional audio dubbing operation,

2 is a block diagram of an audio dubbing apparatus of the present invention composite product,

3 is a flow chart of a control method of the audio dubbing apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: BC Deck 2: Micom

3: optical disc player 4: electronic volume

5: Integrator 6, 7: Video Head

8: VR video circuit unit 9: audio muting head

10: audio R / P head 11: oscillator

12: VR audio circuit unit 13: key input unit

14 monitor 15 speaker

The present invention relates to a composite product. In particular, when audio dubbing is detected, a vertical synchronization signal is detected from the video circuit unit of V-CAL. The present invention relates to an audio dubbing apparatus for a composite product and a control method thereof, which not only obtain a natural audio dubbing effect but also improve the ease of use by stopping the operation of the optical disc player without any additional operation.

In general, audio dubbing in a combination product that includes an optical disc player and V-Cal means recording by adding background music, sound effects, or narration to an already recorded or recorded videotape, or video It means to record a new audio signal while leaving the video signal recorded on the tape, which is mainly dubbing to add background music.

In order to perform the above audio dubbing function, a conventional composite product includes a VCD deck 71 for recording an information signal on a video tape or reproducing the recorded information, as shown in FIG. A microcomputer 72 for outputting a control signal to 71 and controlling the entire system; and an optical disc player 73 for outputting an audio signal to be dubbed by reproducing an optical disc in accordance with the drive control signal of the microcomputer 72; And an electronic volume 74 for adjusting the audio level output from the optical disc player 73 according to the control signal of the microcomputer.

The V deck 71 includes video heads 75 and 76 for recording a video signal or reading the recorded video signal, and a video signal read out from the video heads 75 and 76. And V video circuit unit 77 for processing and outputting to the monitor 83, an audio erasing head 78 for erasing an audio signal recorded on an audio track of the video tape by flowing a high frequency current, and audio of the video tape. The audio signal recorded in the track is reproduced or the audio R / P head 79 for recording the audio signal and the audio signal read from the audio R / P head 79 are processed to produce a speaker ( 84, the high frequency is applied to the audio erasing head 78 and the audio R / P head 79 according to a control signal of the microcomputer 72 and the video signal of the VLC. Visible key is composed of oscillator 81.

In addition, the microcomputer 72 is connected to a key input unit 82 for inputting a function setting signal of the user.

On the other hand, referring to the operation of the conventional composite product configured as described above, first, the video tape recorded or recorded is mounted on the VCD deck 71, and the optical disk is mounted on the tray of the optical disk player 73. When the playback mode is set to the optical disc player 73 and the dubbing mode is set to the VCD deck 71, the audio signal output from the optical disc player 73 is controlled by the control signal of the microcomputer 72. It is input to the VCD audio circuit unit 80 through the electronic volume 74 controlled accordingly. On the other hand, the audio signal recorded on the audio track of the video tape is erased by the audio erasing head 78 immediately before reaching the R / P head 79 in order to prevent mixing with the audio signal to be dubbed. At this time, the high frequency signal output from the oscillator 81 is applied to the audio erasing head 78 according to the control signal of the microcomputer 72 to perform the erasing operation. The audio signal input to the VRC audio circuit unit 80 is recorded by the audio R / P head 79 on the audio track of the video tape from which the audio signal is erased.

However, in the conventional composite product as described above, the reproduction of the video signal is terminated when the audio dubbing mode is executed, and the reproduction of the audio signal of the optical disc player is not terminated even when the non-signal portion is reproduced. Since the signal is recorded and the user stops the playback of the optical disc player and suddenly the audio signal input is interrupted, it is not only a natural dubbing, but also has a problem in that the operation of the VCD deck is stopped by a separate operation.

Accordingly, the present invention has been invented to solve the above problems, and when the audio dubbing mode is executed in the composite product, the vertical synchronization signal is detected from the video circuit of V-Cal and the audio to be dubbed if the vertical synchronization signal is not detected. It gradually lowers the signal level to fade out to allow natural dubbing, and when the audio signal is integrated below the predetermined level, the optical disc player and the V deck are stopped to improve the convenience of use. An object of the present invention is to provide an audio dubbing device for a product and a control method thereof.

In order to achieve the above object, the present invention provides a VCD deck for recording an information signal or reproducing the recorded information on a video tape, and a vertical synchronization signal from the VCD deck to detect a control signal according to the detection result. An optical disc player for outputting an audio signal to be dubbed according to the control signal of the microcomputer, and a volume level of an audio signal output from the optical disc player according to the control signal of the microcomputer. And an integrator which integrates the electronic volume to be adjusted and the audio signal output from the electronic volume and inputs the value to the microcomputer.

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

The apparatus of the present invention, as shown in FIG. 2, has a VD deck 1 for recording an information signal on a video tape or reproducing the information signal, and a vertical synchronous signal H from this V deck. Microcomputer 2 for controlling the entire system by detecting and outputting a control signal, and an optical disk player for outputting an audio signal to be dubbed by reproducing an optical disk according to the drive control signal of the microcomputer 2. 3) an electronic volume 4 for adjusting the audio signal level output from the optical disc player 3 according to the control signal of the microcomputer 2, and an audio signal from the electronic volume 4, and detecting the audio signal. An integrated circuit 5 is integrated to output an audio signal to the microcomputer 2.

The V Deck 1 records the video heads 6 and 7 for recording a video signal on the video tape or reading the recorded video signal, and the video signals read out from the video heads 6 and 7. A video signal circuit section 8 for processing and outputting to a monitor 14, an audio erasing head 9 for erasing a signal recorded in an audio track of the video tape by flowing a high frequency current, and an audio track of a video tape. An audio R / P head 10 for reproducing the audio signal or recording the audio signal, and a V for processing the audio signal read from the audio R / P head 10 and outputting the audio signal to the outside through the speaker 15. A seed audio circuit unit 12 and an oscillator 11 for applying high frequency to the audio erasing head 9 and the audio R / P head 10 according to a control signal of the microcomputer 2. .

In addition, the microcomputer 2 is connected to a key input unit 13 for inputting a function setting signal of the user.

Next, a control method of the apparatus of the present invention having the above configuration will be described.

First, the video tape recorded or recorded is mounted on the V-Deck 1 and the optical disk is mounted on the tray of the optical disk player 3. The optical disc player 3 then sets a playback mode.

At this time, the microcomputer 2 proceeds to the audio dubbing mode determination step S2 in the initial state S1 as shown in FIG. 3 to determine whether the audio dubbing mode is set. If it is determined in the audio dubbing mode determination step S2 that it is not the audio dubbing mode, the process proceeds to the currently set mode execution step S9 and continues to execute, for example, the playback mode in the currently set mode.

On the other hand, if it is determined in the audio dubbing mode determination step (S2) that the audio dubbing mode is determined to proceed to the vertical synchronization signal input determination step (S3) to determine whether the vertical synchronization signal (H-Sync.) Is detected. In other words, it is determined whether a video signal is recorded in the video track of the video tape to be dubbed.

If it is determined that the vertical synchronization signal is detected in the vertical synchronization signal input determination step (S3), the process proceeds to the audio dubbing mode execution step (S10), and continues to execute the audio dubbing mode, and then the vertical synchronization signal input determination step ( Return to S3).

On the other hand, if it is determined in the vertical synchronization signal input determination step (S3) that the vertical synchronization signal is not detected, the process proceeds to the electronic volume control step (S4). In this electronic volume control step (S4), the microcomputer 2 outputs a control signal to the electronic volume 4 to gradually lower the level of the audio signal output from the optical disk player 3, and then determines the integral circuit output level. Proceeding to step S5, it is determined whether the signal level output from the integrating circuit 4 is a predetermined level '0'.

When it is determined that the signal level output from the integrating circuit 4 is not the predetermined level '0' in the integrating circuit output level determining step S5, the control returns to the electronic volume control step S4.

On the other hand, if it is determined that the signal level output from the integrating circuit 4 is a predetermined level ('0') in the integrating circuit output level determining step S5, the process proceeds to the optical disc player stopping step S6 and the optical disc player 3 ), And proceeds to the V-SAL stop step (S7) to stop the V-RC deck (1), and then proceeds to the audio dubbing mode release step (S8).

As described above, according to the present invention, when the audio dubbing mode is executed in the composite product, the vertical sync signal is detected from the video circuit of V-Cal, so that the vertical sync signal is not detected. When this is reproduced, the audio signal level of the optical disc player which is input to the audio circuit of V-Cal is faded out to finish dubbing naturally, preventing the video signal from being dubbed into the audio track of the unrecorded video tape, as well as integrating the circuit. When the signal level input to the microcomputer reaches a predetermined level ('0'), the optical disc player is stopped, and thus the operation of the optical disc player is stopped without any further operation, thereby improving convenience of use.

Claims (2)

In the composite product including the VCD deck 1 and the optical disc player 3, the microcomputer 2 which detects the vertical synchronization signal from the VCD deck 1 and outputs a control signal to control the entire system. ), An electronic volume 4 for adjusting the audio signal level output from the optical disc player 3 according to the control signal of the microcomputer 2, and an audio signal from the electronic volume 4, and detecting the audio signal. A dubbing apparatus for a composite product comprising a V-Cal and an optical disc player, characterized in that it comprises an integrating circuit (5) for integrating a signal and outputting the signal to the microcomputer (2). When the audio dubbing mode is set, the vertical synchronization signal detection step for determining whether the vertical synchronization signal is detected and the vertical synchronization signal detection step determine that the vertical synchronization signal is not detected. Determining whether the signal level output from the integrating circuit is at a predetermined level during the electronic volume control step lowered by the electronic volume control step, and if the signal level is a predetermined level as a result of the determination at the integrating circuit output level determining step. A control method of an audio dubbing apparatus for a composite product comprising an optical disc player and a V-C, comprising: an optical disc player stopping step of stopping the player;