KR920008552Y1 - Audio dubbing circuit for vtr - Google Patents

Audio dubbing circuit for vtr Download PDF

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Publication number
KR920008552Y1
KR920008552Y1 KR2019870020916U KR870020916U KR920008552Y1 KR 920008552 Y1 KR920008552 Y1 KR 920008552Y1 KR 2019870020916 U KR2019870020916 U KR 2019870020916U KR 870020916 U KR870020916 U KR 870020916U KR 920008552 Y1 KR920008552 Y1 KR 920008552Y1
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South Korea
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recording
microphone
selection switch
audio
playback
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KR2019870020916U
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Korean (ko)
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KR890011449U (en
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박기보
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주식회사 금성사
최근선
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/86Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers

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  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음.No content.

Description

브이씨알의 오디오 더빙회로V-real audio dubbing circuit

제1도는 종래의 브이씨알 오디오 더빙 회로도.1 is a conventional V-Audio audio dubbing circuit diagram.

제2도는 본 고안의 브이씨알 오디오 더빙 회로도.2 is a V-CD audio dubbing circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

11 : 기록앰프 12 : 재생앰프11: recording amplifier 12: playback amplifier

14 : 마이크앰프 15 : 믹서14: microphone amplifier 15: mixer

SW6, SW7: 라인/마이크 선택스위치 SW8: 기록/재생 선택스위치SW 6 , SW 7 : Line / Microphone Selection Switch SW 8 : Record / Playback Selection Switch

SW9,SW10: 에프엠/노말 선택스위치SW 9 , SW 10 : FM / Normal selector switch

본 고안은 비디오 카세트 레코더(이하, 브이씨알이라함)의 오디오 더빙회로에 관한 것으로, 특히 하이파이 브이씨알에서 배경 음악을 들으면서 더빙할 수 있게 한 오디오 더빙회로에 관한 것이다.The present invention relates to an audio dubbing circuit of a video cassette recorder (hereinafter referred to as VRC), and more particularly, to an audio dubbing circuit that allows dubbing while listening to background music in a hi-fi VRC.

종래의 브이씨알 오디오 더빙회로는 제1도에 도시된 바와같이 에프엠(FM) 오디오헤드(FH1) (FH2)가 기록/ 재생 선택스위치 (SW1) (SW2)의 재생단자(a1) (a2) 및 프리앰프(1) (2), 복조기 (3) (4)를 통해 기록/재생 선택스위치(SW3) (SW4)의 재생단자(a3) (a4)에 접속됨과 아울러 그 에프엠 오디오 헤드(FH1) (FH2)가 상기 기록/ 재생 선택스위치(SW1) (SW2)의 재생단자 (a1) (a2) 및 기록앰프(5) (6), 변조기(7) (8)를 통해 상기 기록/ 재생 선택스위치(SW3) (SW4) 및 신장기(9)에 접속되며, 상기 기록/재생 선택스위치(SW3) (SW4)의 기록단자(b3) (b4)는 압축기(10) 및 스위치(SW5)를 통해 기록앰프(11) 및 라인/마이크선택스위치(SW6) (SW7)에 접속되어, 그 스위치(SW6) (SW7)의 마이크단자(a6) (a7)는 마이크신호단자(ML) (MR)에 접속되고 라인단자(b6) (b7)는 오디오라인 신호단자(LL) (LR)에 접속되며, 상기 기록앰프(11)의 출력측은 노말오디오 헤드(AH1)에 접속된 기록/재생 선택스위치(SW8)의 기록단자(b8)에 접속되고 이 기록/재생 선택스위치(SW8)의 재생앰프(12)를 통해 에프엠/노말선택스위치(SW9) (SW10)의 에프엠선택단자(b9) (b10)는 메트릭스(13)를 통해 상기 신장기(9)에 접속되어 구성된다.In the conventional BD audio dubbing circuit, as shown in FIG. 1, the FM audio head FH 1 and FH 2 have a play terminal a 1 of the recording / playback selection switch SW 1 and SW 2 . ) (a 2 ) and the reproducing terminal (a 3 ) (a 4 ) of the recording / playback selection switch (SW 3 ) (SW 4 ) via the preamplifier (1) (2) and the demodulator (3) (4). In addition, the FM audio head FH 1 (FH 2 ) is connected to the playback terminals (a 1 ) (a 2 ) and the recording amplifiers (5) (6) of the recording / playback selection switch (SW 1 ) (SW 2 ), It is connected to the recording / playback selection switch SW 3 (SW 4 ) and the expander 9 via a modulator 7 and 8, and the recording terminal of the recording / playback selection switch SW 3 (SW 4 ) ( b 3 ) (b 4 ) is connected to the recording amplifier 11 and the line / mic selection switch SW 6 (SW 7 ) via the compressor 10 and the switch SW 5 , and the switch SW 6 ( The microphone terminal (a 6 ) (a 7 ) of SW 7 ) is connected to the microphone signal terminal (ML) (MR) and the line terminal (b 6 ) (b 7 ) is an audio line It is connected to the signal terminal LL (LR), and the output side of the recording amplifier 11 is connected to the recording terminal b 8 of the recording / playback selection switch SW 8 connected to the normal audio head AH 1 . Through the playback amplifier 12 of the recording / playback selection switch SW 8 , the FM selection terminals b 9 and b 10 of the FM / normal selection switch SW 9 (SW 10 ) are connected via the matrix 13. It is connected to the said stretcher 9, and is comprised.

따라서, 이러한 종래의 회로에 있어서는 라인/마이크선택스위치(SW6) (SW7)에 의해 라인 및 마이크입력을 선택하게 되는데 통상 더빙모드일때는 그 라인/마이크선택스위치(SW6) (SW7)가 마이크단자(a6) (a7)에 연결되어 마이크신호단자(ML) (MR)의 마이크신호가 입력된다. 그런데, 더빙모드일때는 스위치(SW5)가 오프되므로 상기 마이크 오디오 입력신호가 기록앰프(11)를 통해 기록/재생선택스위치(SW8)의 기록단자(b8)에 인가되고, 이에따라 그 기록/재생 선택 스위치(SW8)의 기록선택에 의해 노말오디오헤드(AH1)에 인가되어 기록된다.Therefore, in such a conventional circuit, the line and microphone input switches are selected by the line / microphone selection switch SW 6 (SW 7 ). In the dubbing mode, the line / microphone selection switch SW 6 (SW 7 ) is normally selected. Is connected to the microphone terminal (a 6 ) (a 7 ) is input to the microphone signal of the microphone signal terminal (ML) (MR). In the dubbing mode, however, since the switch SW 5 is turned off, the microphone audio input signal is applied to the recording terminal b 8 of the recording / playback selection switch SW 8 through the recording amplifier 11, and accordingly the recording is performed. The recording is applied to the normal audio head AH 1 by recording selection of the / playback selection switch SW 8 .

따라서, 이때 비디오 신호는 재생되어 화면에 나타나게 되고, 노말 오디오신호만 노말 오디오헤드(AH1)에 이해 기록되어 더빙기능을 수행하게 된다.Therefore, the video signal is reproduced and displayed on the screen, and only the normal audio signal is recorded in the normal audio head AH 1 to perform the dubbing function.

그러나, 이러한 종래의 회로에 있어서는 사용자가 화면을 보면서 노말 오디오신호를 기록할때 화면만 나오게 되는 결점이 있었다.However, this conventional circuit has the drawback that only the screen comes out when the user records the normal audio signal while viewing the screen.

본 고안은 이러한 종래의 결점을 해결하기 위하여, 화면을 보면서 노말 오디오신호를 기록하는 더빙모드시에도 마이크 오디오신호가 출력되게 안출한 것으로, 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.In order to solve the above-mentioned drawbacks, the present invention is designed to output a microphone audio signal even in a dubbing mode in which a normal audio signal is recorded while viewing a screen.

제2도는 본 고안의 브이씨알 오디오 더빙회로도로서 이에 도시한 바와같이, 상기 제1도에서 설명한 바와같은 브이씨알의 오디오 더빙회로에 있어서, 상기 라인/마이크 선택스위치(SW6) (SW7) 및 기록앰프(11)의 접속점을 마이크앰프(14) 및 믹서(15)를 통해 상기 에프엠/노말선택스위치(SW9) (SW10) 및 오디오 출력단자에 접속하여 구성한 것으로, 이와같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.FIG. 2 is a V-CD audio dubbing circuit diagram of the present invention, and in the V-CD audio dubbing circuit described in FIG. 1, the line / microphone selection switch SW 6 (SW 7 ) and The connection point of the recording amplifier 11 is connected to the FM / normal selection switch SW 9 (SW 10 ) and the audio output terminal through the microphone amplifier 14 and the mixer 15. The effect will be described in detail as follows.

사용자가 더빙을 수행하고자 마이크를 사용하게 되면, 이때 기록/재생선택스위치(SW1-SW4)는 그의 재생단자(a1-a4)에 각각 단락되고, 라인/마이크선택스위치(SW6, SW7)는 그의 마이크단자(a6, a7)에 단락되며, 기록/재생선택스위치(SW8)는 그의 재생단자(b8)는 에 접속되고, 에프엠/노말 선택스위치(SW9, SW10)는 그의 에프엠 선택단자(b9, b10)에 단락된다.When the user uses the microphone to dub, the recording / playback selection switches SW 1 -SW 4 are short-circuited to their playback terminals a 1 -a 4 , respectively, and the line / microphone selection switches SW 6 , SW 7 ) is short-circuited to its microphone terminals a 6 and a 7 , and the recording / playback selection switch SW 8 is connected to its playback terminal b 8 to the FM / normal selection switch SW 9 , SW. 10 ) is short-circuited to its FM selection terminals b 9 and b 10 .

따라서, 이때 마이크 신호단자(ML, MR)에 입력되는 마이크 오디오신호가 라인/마이크선택스위치 (SW6, SW7)의 마이크 단자 (a6, a7) 및 기록앰프(11), 기록/재생선택스위치(SW8)의 기록단자(b8)를 통해 노말 오디오 헤드(AH1)에 인가되어 기록된다.Therefore, at this time, the microphone audio signal input to the microphone signal terminals ML and MR is transferred to the microphone terminals a 6 and a 7 of the line / microphone selection switch SW 6 and SW 7 and the recording amplifier 11 and recording / reproducing. The recording is applied to the normal audio head AH 1 via the recording terminal b 8 of the selection switch SW 8 .

또한, 이때 상기 라인/마이크선택스위치(SW6, SW7)의 마이크단자 (a6, a7)를 통한 마이크 오디오 신호는 마이크 앰프(14) 및 믹서(15)를 통해 오디오 출력단자에 출력되고, 에프엠 오디오 트랙에 길고되어 있는 오디오 신호는 에프엠 오디오 헤드(FH1, FH2)에서 재생된 후 기록/재생 선택스위치(SW1, SW2)의 재생단자(a1, a2)를 통해 프리앰프(1,2)에서 증폭되고, 이 프리앰프(1,2)의 출력신호는 복조기(3,4)에서 복조된 후 기록/재생선택 스위치(SW3, SW4)의 재생단자 (a3, a4), 신장기(9), 매트릭스(13), 에프엠/노말선택스위치( SW9) (SW10)의 에프엠 선택단자(b9) (b10)를 통해 오디오 출력단자에 출력된다.In addition, the microphone audio signal through the microphone terminal (a 6 , a 7 ) of the line / microphone selection switch (SW 6 , SW 7 ) is output to the audio output terminal through the microphone amplifier 14 and the mixer 15 The audio signal, which is long on the FM audio track, is played back by the FM audio heads FH 1 and FH 2 and then pre-sets through the playback terminals a 1 and a 2 of the recording / playback selection switches SW 1 and SW 2 . Amplified by the amplifiers 1 and 2, and the output signals of the preamplifiers 1 and 2 are demodulated by the demodulators 3 and 4 , and then the reproduction terminals (a 3 ) of the recording / playback selection switches SW 3 and SW 4 . , a 4 ), the expander 9, the matrix 13, and the FM selection terminals b 9 and b 10 of the FM / normal selection switch SW 9 (SW 10 ) are output to the audio output terminal.

이상에서 상세히 설명한 바와같이 본 고안은 더빙 시에도 마이크 오디오 신호가 출력되므로 배경음악을 들으면서 더빙을 후수행할 수 있는 이점이 있게 된다.As described in detail above, the present invention has an advantage of performing dubbing while listening to background music because the microphone audio signal is output even during dubbing.

Claims (1)

라인/마이크선택스위치(SW6) (SW7)가 기록앰프(11)를 통해 노말오디오헤드(AH1)에 접속된 기록/재생 선택 스위치 (SW8)의 기록단자(b8)에 접속되고, 그 기록/재생 선택 스위치(SW8)의 재생단자(a8)는 재생앰프(12)를 통해 에프앰/노말선택스위치 (SW9, SW10)의 노말선택스위치(a9, a10)에 접속된 브이씨알의 오디오 더빙회로에 있어서, 상기 라인/마이크선택스위치(SW6) (SW7)를 마이크앰프(14) 및 믹서(15)를 통해 상기 에프앰/노말선택스위치 (SW9, SW10)에 접속하여 구성된 것을 특징으로 하는 브이씨알의 오디오 더빙회로.The line / microphone selection switch SW 6 (SW 7 ) is connected to the recording terminal b 8 of the recording / playback selection switch SW 8 connected to the normal audio head AH 1 via the recording amplifier 11. The reproducing terminal a 8 of the recording / reproducing selection switch SW 8 is connected to the normal selection switch a 9 and a 10 of the FM / normal selection switches SW 9 and SW 10 through the reproducing amplifier 12. In the audio dubbing circuit of V-C, connected to the line / microphone selection switch SW 6 (SW 7 ) through the microphone amplifier 14 and the mixer 15, the amplifier / normal selection switch SW 9 , SW 10 ) audio dubbing circuit, characterized in that configured to connect.
KR2019870020916U 1987-11-30 1987-11-30 Audio dubbing circuit for vtr KR920008552Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870020916U KR920008552Y1 (en) 1987-11-30 1987-11-30 Audio dubbing circuit for vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870020916U KR920008552Y1 (en) 1987-11-30 1987-11-30 Audio dubbing circuit for vtr

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Publication Number Publication Date
KR890011449U KR890011449U (en) 1989-07-13
KR920008552Y1 true KR920008552Y1 (en) 1992-11-30

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Application Number Title Priority Date Filing Date
KR2019870020916U KR920008552Y1 (en) 1987-11-30 1987-11-30 Audio dubbing circuit for vtr

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