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KR950015197A - Frequency characteristics correction device of audio / video amplifier - Google Patents

Frequency characteristics correction device of audio / video amplifier Download PDF

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Publication number
KR950015197A
KR950015197A KR1019930025641A KR930025641A KR950015197A KR 950015197 A KR950015197 A KR 950015197A KR 1019930025641 A KR1019930025641 A KR 1019930025641A KR 930025641 A KR930025641 A KR 930025641A KR 950015197 A KR950015197 A KR 950015197A
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South Korea
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speaker
test
amplifier
output
noise
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KR970004177B1 (en
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윤두수
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이헌조
엘지전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)

Abstract

본 발명은 오디오/비디오(A/V)앰프의 주파수 특성 보정 장치에 관한 것으로, 종류가 다른 다수개의 스피커를 A/V앰프에 이용할 경우 상기 스피커에서 발생되는 음색의 차이 및 주파수 특성이 변화되므로 사용자는 A/V앰프를 조절하여 원하는 음장효과를 얻을 수 없고, 종류가 다른 스피커에서 출력되는 주파수 특성이 동일하지 않으므로 제2도에서와 같이 전면스피커와 후면스피커 및 중심스피커 사이의 주파수 특성에 차이가 발생되며, 이에따라 음장감이 떨어지는 문제점이 있었다. 본 발명은 이와같은 종래 문제점을 해결하기 위하여 A/V앰프에 연결된 종류가 다른 다수개의 스피커에서 출력되는 주파수 특성을 본석하고, 이 분석결과에 따라 A/V앰프 특성을 보정하므로서 청취자가 실내 넓은 콘서트홀에 있는 듯한 공간감을 느끼도록 한 것으로 A/V앰프에 적용한다.The present invention relates to an apparatus for compensating frequency characteristics of an audio / video (A / V) amplifier. When a plurality of speakers of different types are used for the A / V amplifier, a difference in the tone and frequency characteristics generated by the speaker is changed. Does not achieve the desired sound field effect by adjusting the A / V amplifier, and because the frequency characteristics output from different speakers are not the same, there is a difference in the frequency characteristics between the front and rear speakers and the center speaker as shown in FIG. There was a problem that the sound field falls accordingly. The present invention is to solve the conventional problems, the frequency characteristics output from a plurality of speakers of different types connected to the A / V amplifier, and the listener is corrected by the characteristics of the A / V amplifier according to the analysis results in the room wide concert hall It is applied to A / V amplifier as it feels as if it is in the space.

Description

오디오/비디오(A/V) 앰프의 주파수 특성 보정장치Frequency characteristics correction device of audio / video amplifier

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 5 도는 본 발명의 주파수 특성 보정장치가 구비된 A/V앰프의 블록도.5 is a block diagram of an A / V amplifier equipped with a frequency characteristic correction device of the present invention.

제 6 도는 본 발명의 A/V앰프의 스피커 배열도.6 is a speaker arrangement diagram of the A / V amplifier of the present invention.

Claims (5)

테스트 노이즈 신호를 발생하는 테스트신호 발생수단과, 테스트 노이즈를 각각의 스피커로 순차적으로 선택 출력하는 스피커 선택수단과, 각각의 스피커를 선택제어하는 스피커 선택제어수단과, 각각의 스피커에서 출력된 테스트신호를 입력하는 테스트신호 입력수단과, 입력된 테스트 노이즈를 분석하여 각각의 스피커 특성을 판단하고, 특성에 따라 각각의 스피커에서 출력된 오디오 신호 이득 제어신호를 출력시켜 보정하는 분석/제어수단으로 구성된 오디오/비디오(A/V)앰프의 주파수 특성 보정장치.Test signal generation means for generating a test noise signal, speaker selection means for sequentially outputting test noise to each speaker, speaker selection control means for selecting and controlling each speaker, and a test signal output from each speaker Audio signal consisting of a test signal input means for inputting a signal and an analysis / control means for analyzing the input test noise to determine each speaker characteristic, and outputting and correcting an audio signal gain control signal output from each speaker according to the characteristic Frequency characteristic correction device for video and video amplifiers. 제1항에 있어서, 각각의 스피커 선택수단은, 테스트 노이즈를 순차적으로 4채널 제 2 증폭부(23)에 공급하는 디멀티플렉서부(22)와, 상기 디멀티플렉서부(22)에서 출력된 테스트 노이즈를 증폭시키는 4채널 제 2 증폭부(23)인 것을 특징으로 한 오디오/비디오(A/V)앰프의 주파수 특성 보정장치.The method of claim 1, wherein each speaker selecting means amplifies the demultiplexer unit 22 for sequentially supplying test noise to the second four-channel amplifier 23, and amplifies the test noise output from the demultiplexer unit 22. And a four-channel second amplifying unit (23). 제1항에 있어서, 테스트신호 입력수단은, 각각의 스피커에서 출력된 테스트 노이즈를 A/V앰프에 다시 입력되도록 청취자가 청취하고자 하는 위치에 고정된 마이크(19)와, 마이크(19)에서 출력된 테스트 노이즈를 디지탈 신호로 변환시켜 분석/제어수단에 인가하는 A/D변환부(20)인 것을 특징으로 한 오디오/비디오(A/V)앰프의 주파수 특성 보정장치.The apparatus of claim 1, wherein the test signal input means comprises: a microphone 19 fixed to a position where the listener is to listen so that the test noise output from each speaker is inputted back to the A / V amplifier, and output from the microphone 19; And an A / D converter 20 for converting the test noise into a digital signal and applying the same to an analysis / control means. 제1항에 있어서, 분석/제어수단은, 테스트신호 입력수단에서 출력된 디지탈 데이타를 저장하는 메모리부와 각각의 스피커별로 저장되어 있는 응답데이타를 필터링하는 밴드패스 필터부와, 필터링된 각 밴드의 에너지변화에 따라 밴드에 최적 음장감의 잔향음을 부가하도록 이득을 제어하는 것을 특징으로 한 오디오/비디오(A/V)앰프의 주파수 특성 보정장치.The apparatus of claim 1, wherein the analysis / control unit comprises: a memory unit for storing digital data output from the test signal input unit, a band pass filter unit for filtering response data stored for each speaker, and a filter of each band. A device for correcting frequency characteristics of an audio / video (A / V) amplifier, characterized in that gain is controlled so as to add reverberation sound of an optimal sound field to a band according to energy change. 제1항에 있어서, 테스트 노이즈는 핑크 노이즈인 것을 특징으로 한 오디오/비디오(A/V)앰프의 주파수 특성 보정장치.The apparatus of claim 1, wherein the test noise is pink noise. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930025641A 1993-11-29 1993-11-29 Frequency characteristic correcting device of audio/video amp Expired - Fee Related KR970004177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930025641A KR970004177B1 (en) 1993-11-29 1993-11-29 Frequency characteristic correcting device of audio/video amp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930025641A KR970004177B1 (en) 1993-11-29 1993-11-29 Frequency characteristic correcting device of audio/video amp

Publications (2)

Publication Number Publication Date
KR950015197A true KR950015197A (en) 1995-06-16
KR970004177B1 KR970004177B1 (en) 1997-03-25

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KR1019930025641A Expired - Fee Related KR970004177B1 (en) 1993-11-29 1993-11-29 Frequency characteristic correcting device of audio/video amp

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100718298B1 (en) * 2005-11-23 2007-05-15 디케이티 주식회사 Audio playback device with aging program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100718298B1 (en) * 2005-11-23 2007-05-15 디케이티 주식회사 Audio playback device with aging program

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KR970004177B1 (en) 1997-03-25

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