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公开(公告)号：KR1020070011136A
公开(公告)日：2007-01-24
申请号：KR1020060066822
申请日：2006-07-18
Applicant: 한국전자통신연구원
IPC: G10L19/008 , H04S3/00 , H03M7/30
Abstract: A method for quantizing and inverse-quantizing a channel level difference based on virtual source location information is provided to minimize aural deterioration in SAC(Spatial Audio Coding) and improve sound quality without increasing complexity. A channel level difference parameter used as a spatial parameter is quantized when a multi-channel audio signal is spatial-audio-coded. Sub-band channel level differences are extracted from the multi-channel audio signal. The channel level difference is quantized with reference to channel level difference quantization table designed by using a channel level difference quantization value derived from a virtual source location information quantization value of the multi-channel audio signal.
Abstract translation: 提供了一种用于基于虚拟源位置信息对信道电平差进行量化和逆量化的方法，以最小化SAC（空间音频编码）中的听觉恶化并且在不增加复杂度的情况下改善声音质量。 当多声道音频信号是空间音频编码时，用作空间参数的通道电平差参数被量化。 从多声道音频信号提取子带信道电平差。 参考通过使用从多声道音频信号的虚拟源位置信息量化值导出的信道电平差量化值设计的信道电平差量化表来量化信道电平差。
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公开(公告)号：KR101401775B1
公开(公告)日：2014-05-30
申请号：KR1020100111529
申请日：2010-11-10
Applicant: 한국전자통신연구원
CPC classification number: H04S7/30 , H04S2400/09 , H04S2400/11 , H04S2420/13
Abstract: 음상 정위 정보가 없는 멀티 채널 신호를 음장 합성하는 방법 및 장치가 개시된다. 음장 합성 재생 장치는 입력 받은 멀티 채널 신호를 주요 신호(Primary Signal)와 부가 신호(Ambient Signal)로 분류하는 신호 분류부; 상기 주요 신호의 음상 정위 정보와 상기 부가 신호의 음상 정위 정보를 추정하는 음상 정위 정보 추정부; 및 상기 주요 신호의 음상 정위 정보와 상기 부가 신호의 음상 정위 정보 및 청취자 환경 정보를 기초로 상기 주요 신호와 상기 부가 신호를 렌더링하는 렌더링부를 포함할 수 있다.
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公开(公告)号：KR101001665B1
公开(公告)日：2010-12-15
申请号：KR1020080036185
申请日：2008-04-18
Applicant: 한국전자통신연구원
Abstract: 본 발명은 전방 스피커 어레이를 통한 음장 재생 장치 및 그 방법에 관한 것으로, 전방 스피커 어레이를 통해 음장 합성 기반으로 오디오 신호를 재생하되, 그 전방 스피커 어레이를 통해 가상의 호형 어레이 형태로 방사시킬 스피커 구동 신호를 음장 재생 정보(예를 들어, 스피커 배열 정보 및 음상 정위 정보)를 기초로 하여 산출함으로써, 협소한 청취 공간에서도 더욱 넓은 스위트 스팟을 용이하게 사용자에게 제공할 수 있는, 전방 스피커 어레이를 통한 음장 재생 장치 및 그 방법을 제공하고자 한다.
이를 위하여, 본 발명은 전방 스피커 어레이를 통한 음장 재생 장치에 있어서, 재생 대상이 되는 음원 신호와 음장 재생 정보를 입력받기 위한 입력 수단; 상기 전방 스피커 어레이의 스피커 구동 신호를 상기 음장 재생 정보를 기초로 하여 산출하기 위한 신호 처리 수단; 및 상기 산출된 스피커 구동 신호에 따라 상기 전방 스피커 어레이를 통해 가상의 호형 어레이 형태로 상기 음원 신호를 재생하기 위한 재생 수단을 포함한다.
전방 라우드스피커 어레이, 음장 합성, 음장 재생, 스위트 스팟, 호형 스피커 어레이, 스피커 배열 정보, 지향각 정보-
公开(公告)号：KR101758914B1
公开(公告)日：2017-07-17
申请号：KR1020100130187
申请日：2010-12-17
Applicant: 한국전자통신연구원
Abstract: 음장합성신호를다운믹싱하여재생하는방법및 장치가개시된다. 음장합성신호의다운믹싱장치는입력받은음장합성신호의재생위치정보를추정하는재생위치정보추정부; 상기재생위치정보를기초로상기음장합성신호의주요신호(Primary signal)를추정하는주요신호추정부; 및상기주요신호를기초로상기음장합성신호의음상정위정보를추정하는음상정위정보추정부를포함할수 있다.
Abstract translation: 公开了一种用于缩混和再现声场合成信号的方法和设备。 一种用于声场合成信号的缩混装置包括：再现位置信息估计单元，用于估计输入声场合成信号的再现位置信息; 主信号估计器，用于基于再现位置信息来估计声场合成信号的主信号; 以及声音定位信息估计单元，用于基于主信号估计声场合成信号的声音定位信息。
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公开(公告)号：KR1020120036329A
公开(公告)日：2012-04-17
申请号：KR1020120021215
申请日：2012-02-29
Applicant: 한국전자통신연구원
CPC classification number: H04S7/308 , G10L19/008 , H04R5/00 , H04S7/301 , H04S7/305 , H04S2400/11 , H04S2400/15 , H04S2420/03 , H04S2420/13
Abstract: PURPOSE: An apparatus for generating and playing object based audio contents is provided to play object based audio contents by using at least one of a sound field synthesis playback method and a multichannel surround playback method. CONSTITUTION: An apparatus(100) for playing object based audio contents includes an object audio signal acquisition unit(110), a sound source position information acquisition unit(120), a record space information acquisition unit(130), and an encoder(140). The apparatus for playing the object based audio contents further includes an impact sound source emitting unit(150) and an impact sound source signal receiving unit. The object audio signal acquisition unit obtains a plurality of object audio signals. The sound source position information acquisition unit obtains sound source position information for a plurality of signal sources. The record space information acquisition unit obtains record space information for the record space of a plurality of sound source signals.
Abstract translation: 目的：提供一种用于产生和播放基于对象的音频内容的装置，用于通过使用声场合成播放方法和多声道环绕重放方法中的至少一个来播放基于对象的音频内容。 用于播放基于对象的音频内容的装置（100）包括对象音频信号获取单元（110），声源位置信息获取单元（120），记录空间信息获取单元（130）和编码器（140） ）。 用于播放基于对象的音频内容的设备还包括冲击声源发射单元（150）和冲击声源信号接收单元。 对象音频信号获取单元获得多个对象音频信号。 声源位置信息获取单元获得多个信号源的声源位置信息。 记录空间信息获取单元获得多个声源信号的记录空间的记录空间信息。
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Patent Agency Ranking
公开(公告)号：KR1020100062784A
公开(公告)日：2010-06-10
申请号：KR1020090020190
申请日：2009-03-10
Applicant: 한국전자통신연구원
CPC classification number: H04S7/308 , G10L19/008 , H04R5/00 , H04S7/301 , H04S7/305 , H04S2400/11 , H04S2400/15 , H04S2420/03 , H04S2420/13
Abstract: PURPOSE: An object-based audio contents generation/playback apparatus is provided to generate the object-based audio contents by encoding one among a plurality of object audio signals, record space information, sound source location information and a multi-channel audio signal at least. CONSTITUTION: An object audio signal gaining unit(110) gains a plurality of object audio signals by recording a plurality of sound source signals. A record space information gaining unit(130) gains the record space information toward the record space of sound source signals. A sound source location information gaining unit(120) gains the sound source location information of the sound source signals. An encoder(140) generates a object-based audio contents by encoding one among a plurality of object audio signals, the record space information and the sound source location information at least.
Abstract translation: 目的：提供一种基于对象的音频内容生成/重放装置，用于通过将多个对象音频信号，记录空间信息，声源位置信息和多声道音频信号中的一个至少编码来生成基于对象的音频内容 。 构成：对象音频信号增益单元（110）通过记录多个声源信号来获得多个对象音频信号。 记录空间信息增益单元（130）向声源信号的记录空间提供记录空间信息。 声源位置信息获取单元（120）获取声源信号的声源位置信息。 编码器140至少通过对多个对象音频信号，记录空间信息和声源位置信息之一进行编码来产生基于对象的音频内容。
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公开(公告)号：KR1020120050157A
公开(公告)日：2012-05-18
申请号：KR1020100111529
申请日：2010-11-10
Applicant: 한국전자통신연구원
CPC classification number: H04S7/30 , H04S2400/09 , H04S2400/11 , H04S2420/13
Abstract: PURPOSE: An apparatus and a method for reproducing sound wave fields using wave field synthesis based on a speaker array are provided to minimize the distortion of sound field information by classifying multichannel signals into primary signals and ambient signals. CONSTITUTION: A signal sorting unit(110) classifies received multi channel signals into primary signals and ambient signals. The signal sorting unit is an up-mixer sorting the primary signals and the ambient signals. A sound image localization information estimating unit(120) estimates sound image localization information of the primary signals and the ambient signals classified at the signal sorting unit. A rendering unit(130) renders the primary signals and the ambient signals based on the sound image localization information and listener environmental information.
Abstract translation: 目的：提供使用基于扬声器阵列的波场合成来再现声波场的装置和方法，以通过将多通道信号分类为主信号和环境信号来最小化声场信息的失真。 构成：信号分类单元（110）将接收到的多通道信号分类为主信号和环境信号。 信号分类单元是对主信号和环境信号进行分类的上混频器。 声像定位信息估计单元（120）估计主信号和分类在信号分类单元的环境信号的声像定位信息。 渲染单元（130）基于声像定位信息和收听者环境信息呈现主信号和环境信号。
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公开(公告)号：KR1020090110598A
公开(公告)日：2009-10-22
申请号：KR1020080036185
申请日：2008-04-18
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method and device of reproducing sound field through a frontal loudspeaker array are provided to supply a more wide sweet spot a user at a narrow space. CONSTITUTION: A method and device of reproducing sound field through a frontal loudspeaker array are comprised of the steps: receiving a signal source and sound field reproduction information(702); calculating a speak driving signal of a front speak array based on sound field reproduction information(704); and reproducing a sound source as virtual arc array shape through the front speaker array according to the speaker driving signal(706).
Abstract translation: 目的：提供通过正面扬声器阵列再现声场的方法和装置，以在狭窄的空间为用户提供更宽的甜蜜点。 构成：通过前置扬声器阵列再现声场的方法和装置包括以下步骤：接收信号源和声场再现信息（702）; 基于声场再现信息计算前话音阵列的话音驱动信号（704）; 并根据扬声器驱动信号通过前置扬声器阵列再现作为虚拟弧阵列形状的声源。
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公开(公告)号：KR1020090054802A
公开(公告)日：2009-06-01
申请号：KR1020070121672
申请日：2007-11-27
Applicant: 한국전자통신연구원
CPC classification number: H04S3/008 , H04R2201/401 , H04R2201/403 , H04R2499/13 , H04S3/002 , H04S7/30 , H04S2420/13
Abstract: An apparatus and a method for generating a cubic sound field using synthesizing a sound field are provided to offer a wide listening space in a limit space by reproducing the cubic sound field by positioning a multi channel audio signal in a virtual sound image outside a narrow space by using a wave filed synthesis rendering. A cubic sound field reproducing device(200) includes an audio signal analyzing unit(210), a sound field synthesis rendering unit(220), and an audio reproducing unit(230). The audio signal analyzing unit analyzes the inputted multi channel audio signal, confirms the number of the channel of the audio signal, and extracts the sound source signal of the channel confirmed from the multi channel audio signal. A sound field synthesis rendering unit positions the sound source signal of the extracted channel in a virtual sound image of a narrow space by the sound field synthesis method to match the number of the channel of the confirmed audio signal. A reproducing unit reproduces a positioned virtual sound source signal.
Abstract translation: 提供了一种使用合成声场来产生三次声场的装置和方法，以通过将多声道音频信号定位在狭窄空间之外的虚拟声音图像中，通过再现立体声场来在极限空间中提供宽的收听空间 通过使用波场合成渲染。 立体声场再现装置（200）包括音频信号分析单元（210），声场合成渲染单元（220）和音频再现单元（230）。 音频信号分析单元分析输入的多声道音频信号，确认音频信号的频道数，并从多声道音频信号中提取确定的频道的声源信号。 声场合成绘制单元通过声场合成方法将所提取的频道的声源信号定位在狭窄空间的虚拟声像中，以匹配确认的音频信号的频道数。 再现单元再现定位的虚拟声源信号。
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公开(公告)号：KR1020080098307A
公开(公告)日：2008-11-07
申请号：KR1020070123491
申请日：2007-11-30
Applicant: 한국전자통신연구원
Abstract: An apparatus and a method for reproducing a surround sound field for reproducing reflection provide presence and a space sense to a listener by reproducing the reflection by a panning scheme or reproducing corresponding reflection by using respective loudspeaker. The information for reproducing the reflection is inputted to an input unit(810). A signal processor(820) selects the loudspeaker for applying the panning mode based on the information for reproducing the reflection and produces a refection signal. A signal processing unit(830) localizes the produced reflection signal to a virtual sound image according to the panning mode. A reproducing unit(840) reproduces the localized reflection signal through the selected loudspeaker.
Abstract translation: 用于再现用于再现反射的环绕声场的装置和方法通过再现通过摇摄方案的反射或通过使用相应的扬声器再现相应的反射来向收听者提供存在和空间感。 用于再现反射的信息被输入到输入单元（810）。 信号处理器（820）基于用于再现反射的信息来选择用于施加摇摄模式的扬声器，并产生反射信号。 信号处理单元（830）根据平移模式将产生的反射信号定位到虚拟声音图像。 再现单元（840）通过所选择的扬声器再现局部反射信号。
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