WO2015147532A3 - 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체 - Google Patents

음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체 Download PDF

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WO2015147532A3
WO2015147532A3 PCT/KR2015/002894 KR2015002894W WO2015147532A3 WO 2015147532 A3 WO2015147532 A3 WO 2015147532A3 KR 2015002894 W KR2015002894 W KR 2015002894W WO 2015147532 A3 WO2015147532 A3 WO 2015147532A3
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channel
layout
signal
sound
sound signal
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PCT/KR2015/002894
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French (fr)
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WO2015147532A2 (ko
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전상배
김선민
조현
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삼성전자 주식회사
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Publication of WO2015147532A2 publication Critical patent/WO2015147532A2/ko
Publication of WO2015147532A3 publication Critical patent/WO2015147532A3/ko

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    • 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
    • H04S7/308—Electronic adaptation dependent on speaker or headphone connection
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • 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
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • 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
    • H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Abstract

22.2 채널과 같은 멀티 채널 신호를 5.1 채널로 렌더링 하는 경우, 2차원 출력 채널을 이용해 3차원 음향 신호를 재생할 수 있지만 렌더링된 음향 신호들은 스피커의 레이아웃에 민감하게 작용하여 설치된 스피커의 레이아웃이 표준 레이아웃과 다른 경우 음상의 왜곡이 발생하게 된다. 본 발명은 전술한 종래 기술의 문제점을 해결하며, 설치된 스피커의 레이아웃이 표준 레이아웃과 다른 경우라도 음상의 왜곡을 줄일 수 있도록 하기 위한 본 발명의 일 실시예에 따른 음향 신호를 렌더링하는 방법은, 복수 개의 출력 채널로 변환될 복수 개의 입력 채널을 포함하는 멀티채널 신호를 수신하는 단계; 수평 입력 채널이 적어도 두 개의 수평 출력 채널로 패닝되는 경우, 수평 입력 채널과 적어도 두 개의 출력 채널간의 맵핑 관계를 획득하는 단계; 및 획득된 맵핑 관계에 기초하여, 각 출력 채널에 대응하여 수평 입력 채널에 적용할 음색 필터 계수들을 획득하는 단계;를 포함한다.
PCT/KR2015/002894 2014-03-24 2015-03-24 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체 WO2015147532A2 (ko)

Applications Claiming Priority (2)

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US201461969357P 2014-03-24 2014-03-24
US61/969,357 2014-03-24

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WO2015147532A2 WO2015147532A2 (ko) 2015-10-01
WO2015147532A3 true WO2015147532A3 (ko) 2017-05-18

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PCT/KR2015/002895 WO2015147533A2 (ko) 2014-03-24 2015-03-24 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체
PCT/KR2015/002894 WO2015147532A2 (ko) 2014-03-24 2015-03-24 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체
PCT/KR2015/002891 WO2015147530A1 (ko) 2014-03-24 2015-03-24 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체

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US (3) US20180184227A1 (ko)
EP (2) EP3125240B1 (ko)
JP (2) JP6674902B2 (ko)
KR (3) KR102443054B1 (ko)
CN (2) CN106463124B (ko)
AU (2) AU2015234454B2 (ko)
BR (1) BR112016022042B1 (ko)
CA (3) CA2943670C (ko)
MX (1) MX357405B (ko)
RU (2) RU2643630C1 (ko)
WO (3) WO2015147533A2 (ko)

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CA2943670C (en) 2021-02-02
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KR20220041248A (ko) 2022-03-31
MX357405B (es) 2018-07-09
JP6674902B2 (ja) 2020-04-01
CN106463124A (zh) 2017-02-22
EP3832645A1 (en) 2021-06-09
BR112016022042B1 (pt) 2022-09-27
EP3125240B1 (en) 2021-05-05
RU2752600C2 (ru) 2021-07-29
CN106463124B (zh) 2021-03-30
AU2015234454A1 (en) 2016-10-27
KR20160141765A (ko) 2016-12-09
RU2643630C1 (ru) 2018-02-02
KR102380231B1 (ko) 2022-03-29
AU2018200684B2 (en) 2019-08-01
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EP3125240A4 (en) 2017-11-29
KR102574480B1 (ko) 2023-09-04
CN113038355A (zh) 2021-06-25
WO2015147532A2 (ko) 2015-10-01
US20180184227A1 (en) 2018-06-28
CA3101903C (en) 2023-03-21
WO2015147533A3 (ko) 2017-05-18
KR102443054B1 (ko) 2022-09-14
RU2018101706A3 (ko) 2021-05-26
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