KR950015198A - 음성재생장치 - Google Patents

음성재생장치 Download PDF

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Publication number
KR950015198A
KR950015198A KR1019930024617A KR930024617A KR950015198A KR 950015198 A KR950015198 A KR 950015198A KR 1019930024617 A KR1019930024617 A KR 1019930024617A KR 930024617 A KR930024617 A KR 930024617A KR 950015198 A KR950015198 A KR 950015198A
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KR
South Korea
Prior art keywords
signal
sound
channels
signals
audio
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KR1019930024617A
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English (en)
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KR0135850B1 (ko
Inventor
김재영
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930024617A priority Critical patent/KR0135850B1/ko
Priority to US08/341,922 priority patent/US5546465A/en
Priority to JP6283201A priority patent/JPH07212898A/ja
Publication of KR950015198A publication Critical patent/KR950015198A/ko
Application granted granted Critical
Publication of KR0135850B1 publication Critical patent/KR0135850B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/13—Application of wave-field synthesis in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

본 발명은 오디오/비디오 시스템의 음성재생장치에 관한 것으로, 레프트신호(L), 라이트신호(R), 센터신호(C), 프런트레프트신호(FL), 프런트라이트신호(FR), 레어레프트신호(RL), 레어라이트신호(RR) 등 7채널로 음성신호를 출력하는 A/V 시스템의 음성재생장치에 있어서, 상기 L, R, FL, FR, RL, RR 등 6채널의 신호를 합성하여 좌측스피커 출력신호(OEL)와 우측스피커 출력신호(OER)등 2채널의 신호로 변환하기 위한 음성처리수단과, 상기 OEL 신호를 좌측스피커로, 상기 OER 신호를 우측스피커로, 그리고 상기 C 신호를 중앙스피커로 출력하는 총 3채널의 음성출력장치를 포함함을 특징으로 한다.
본 발명은 7채널의 단점을 극복함과 동시에 가정에서 보다 손쉽게 풍부한 음장감과 포위감을 느낄 수 있도록 한다. (제1도)

Description

음성재생장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 음성재생장치의 블럭도
제2도는 제1도에 도시된 음장처리부의 블럭도
제3도는 제1도에 도시된 2채널 음장처리부의 알고리즘

Claims (3)

  1. 돌비 프로 로직 신호인 레프트신호(L), 라이트신호(R), 센터신호(C) 등 3채널과, 하이-파이 음장신호인 프런트레프트신호(FL), 프런트라이트신호(FR), 레어레프트신호(RL), 레어라이트신호(RR) 등 4채널을 합하여 7채널로 음성신호를 출력하는 오디오/비디오(A/V) 시스템의 음성재생장치에 있어서,
    상기 L, R, FL, FR, RL, RR 등 6채널의 신호를 합성하여 좌측스피커 출력신호(OEL)와 우측스피커 출력신호(OER) 등 2채널의 신호로 변환하기 위한 음성처리수단과,
    상기 OEL 신호를 좌측스피키로, 상기 OER 신호를 우측스피커로, 그리고 상기 C 신호를 중앙스피커로 출력하는 총 3채널의 음성출력장치를 포함함을 특징으로 하는 음성재생장치.
  2. 제1항에 있어서, 상기 음성처리수단이
    상기 FL, FR, RL, RR 등 4채널의 신호를 음원과 시청자 귀 간의 전달함수 관계를 이용하여 레프트음장신호(EL)와 라이트음장신호(ER)등 2음장신호로 합성하기 위한 음장처리수단과,
    상기 EL 신호에 상기 L 신호를 합하여, 상기 OEL 신호를 발생하는 장치와,
    상기 ER 신호에 상기 R 신호를 합하여 상기 OER 신호를 발생하는 장치로 이루어짐을 특징으로 하는 음성재생장치.
  3. 제2항에 있어서, 상기 EL 신호 및 ER 신호가 상기 FL, FR, RL 및 RR 신호와 아래의 관계식으로 표현되는 것을 특징으로 하는 음성재생장치.
    (식에서, S는 전방 음원에 의한 직접음 전달함수,
    A는 전방 음원에 의한 간접음 전달함수,
    S'는 후방 음원에 의한 직접음 전달함수,
    A'는 후방 음원에 의한 간접음 전달함수,
    K는 전방음원(FL, FR)과 후방음원(RL, RR)과의 음압매칭을 위한 임의의 계수이다.)
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930024617A 1993-11-18 1993-11-18 음성재생장치 KR0135850B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019930024617A KR0135850B1 (ko) 1993-11-18 1993-11-18 음성재생장치
US08/341,922 US5546465A (en) 1993-11-18 1994-11-16 Audio playback apparatus and method
JP6283201A JPH07212898A (ja) 1993-11-18 1994-11-17 音声再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930024617A KR0135850B1 (ko) 1993-11-18 1993-11-18 음성재생장치

Publications (2)

Publication Number Publication Date
KR950015198A true KR950015198A (ko) 1995-06-16
KR0135850B1 KR0135850B1 (ko) 1998-05-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930024617A KR0135850B1 (ko) 1993-11-18 1993-11-18 음성재생장치

Country Status (3)

Country Link
US (1) US5546465A (ko)
JP (1) JPH07212898A (ko)
KR (1) KR0135850B1 (ko)

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Publication number Publication date
KR0135850B1 (ko) 1998-05-15
US5546465A (en) 1996-08-13
JPH07212898A (ja) 1995-08-11

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