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公开(公告)号：KR101176703B1
公开(公告)日：2012-08-23
申请号：KR1020090064918
申请日：2009-07-16
Applicant: 한국전자통신연구원
IPC: G10L19/008 , G11B20/10 , H04N21/439
Abstract: 음원 위치 단서 기반의 멀티 채널 오디오 복호화 장치 및 방법을 개시한다. 음원 위치 단서 기반의 멀티 채널 오디오 복호화 장치는 신호를 수신하고, 수신한 상기 신호를 오디오 비트스트림과 부가 정보 비트스트림으로 파싱하는 디멀티플렉서; 상기 오디오 비트스트림을 기초로 다운믹스 신호를 복원하는 오디오 복호화부; 상기 다운믹스 신호와 상기 부가 정보 비트스트림을 사용하여 멀티 채널 신호를 예측하고, 상기 멀티 채널 신호를 기초로 상기 다운 믹스 신호를 업믹싱하여 업믹싱 신호를 생성하는 통합 업믹싱부; 상기 업믹싱 신호에 통합 필터 뱅크를 수행하여 시간 영역 신호를 추출하고, 상기 업믹싱 신호를 윈도우잉하여 출력 신호를 추출하는 통합 필터뱅크 윈도우잉부를 포함한다.
SSLCC, 멀티 채널, 다운 믹스, 허프만 부호화, 역양자화.-
公开(公告)号：KR1020120069906A
公开(公告)日：2012-06-29
申请号：KR1020100131239
申请日：2010-12-21
Applicant: 한국전자통신연구원
Abstract: PURPOSE: An encoding/decoding apparatus of an audio signal and a method thereof are provided to reduce the size of the encoded audio frame by converting a mute section into a flag type of low capacity. CONSTITUTION: In case an audio signal is in non-mute interval, an audio encoding unit(120) encodes the non-mute speech frame. The audio encoding unit generates a non-mute frame. A mute frame generating unit(130) generates a mute frame of a flag type. An audio frame generating unit(140) combines the non-mute frame and the mute frame.
Abstract translation: 目的：提供音频信号的编码/解码装置及其方法，以通过将静音部分转换成低容量的标志类型来减小编码音频帧的大小。 构成：如果音频信号处于非静音间隔，音频编码单元（120）对非静音语音帧进行编码。 音频编码单元产生非静音帧。 静音帧生成单元（130）生成标志类型的静音帧。 音频帧生成单元（140）组合非静音帧和静音帧。
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公开(公告)号：KR1020120061792A
公开(公告)日：2012-06-13
申请号：KR1020120058330
申请日：2012-05-31
Applicant: 한국전자통신연구원
IPC: G10L19/00
CPC classification number: G10L19/008
Abstract: PURPOSE: A multi-object encoding/decoding method and an apparatus thereof are provided to efficiently supply various audio services and to generate bit stream including a down-mix signal. CONSTITUTION: A first down-mix generating unit(102) down-mixes a sub-audio object and a first main audio object. The first down-mix generating unit generates a first residual signal and a first down-mix signal. A second down-mix generating unit(103) down-mixes the first down-mix signal and a second main audio object. The second down-mix generating unit generates the second down-mix signal and a second residual signal.
Abstract translation: 目的：提供多对象编码/解码方法及其装置，以有效地提供各种音频服务并产生包括缩减混音信号的比特流。 构成：第一降混组合生成单元（102）将子音频对象和第一主音频对象混合。 第一下混合产生单元产生第一残差信号和第一下混合信号。 第二下混合生成单元（103）将第一缩混信号和第二主音频对象混合。 第二降混产生单元产生第二缩减混音信号和第二残差信号。
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264.发明授权
公开(公告)号：KR101137652B1
公开(公告)日：2012-04-23
申请号：KR1020100089038
申请日：2010-09-10
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/18 , G10L19/02 , G10L19/04 , G10L19/008
CPC classification number: G10L19/025 , G10L19/008 , G10L19/20 , G10L21/038
Abstract: A Unified Speech and Audio Codec (USAC) for adjusting an overlap area of a window based on a transition is provided. To increase an encoding efficiency, encoding may be performed by overlapping relatively long windows. Additionally, when a transition is generated between frames, an overlap area of a window may be reduced based on the transition, thereby preventing a noise from occurring due to the transition.
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265.发明公开
公开(公告)号：KR1020110040669A
公开(公告)日：2011-04-20
申请号：KR1020100089038
申请日：2010-09-10
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/18 , G10L19/02 , G10L19/04 , G10L19/008
CPC classification number: G10L19/025 , G10L19/008 , G10L19/20 , G10L21/038
Abstract: PURPOSE: An integration voice/audio coding/decoding apparatus and method thereof are provided to reduce pre-echo which is generated in a transient section by controlling an overlap domain of a window. CONSTITUTION: An integration voice/audio coding/decoding apparatus includes a detection unit, a first encoding unit, a second encoding unit, and a bit stream formatter. The first encoding unit encodes an input signal and detects a second transient section from an encoded result. The second encoding unit controls the length of an overlap domain and encodes the input signal. The bit stream formatter generates bit stream and the input signal.
Abstract translation: 目的：提供一种集成语音/音频编码/解码装置及其方法，以通过控制窗口的重叠域来减少在瞬态部分中产生的预回波。 构成：集成语音/音频编码/解码装置包括检测单元，第一编码单元，第二编码单元和比特流格式化器。 第一编码单元对输入信号进行编码，并根据编码结果检测第二瞬态部分。 第二编码单元控制重叠域的长度并对输入信号进行编码。 位流格式器生成位流和输入信号。
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Patent Agency Ranking266.发明公开ＭＤＣＴ 프레임과 이종의 프레임 연결을 위한 윈도우 처리 방법 및 장치, 이를 이용한 부호화／복호화 장치 및 방법 有权用于链接MDCT框架和不同类型框架的方法和装置，以及编码装置和方法和解码装置及其使用方法
公开(公告)号：KR1020110010566A
公开(公告)日：2011-02-01
申请号：KR1020100069548
申请日：2010-07-19
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/005 , G10L19/12 , H03M7/30
Abstract: PURPOSE: A window processing for interconnecting between an MDTC(Modified Discrete Cosine Transform) frame and a heterogeneous frame is provided to satisfy TDAC conditions for the recovery of an original signal. CONSTITUTION: A frame applying unit(601) applies a window to a current frame. A window folding unit(602) performs the folding of the window. A zero setting unit(603) establishes the domain folding the window in zero value at the current frame. A frame extracting unit(604) extracts the frame in which the folded first window is processed. A window generating unit(605) generates the second window of the opposite value and folded window. A signal restoring unit(606) restores the former state the raw signal from frame.
Abstract translation: 目的：提供用于在MDTC（修正离散余弦变换）帧和异构帧之间互连的窗口处理，以满足恢复原始信号的TDAC条件。 构成：帧施加单元（601）将窗口应用于当前帧。 窗口折叠单元（602）执行窗口的折叠。 零设置单元（603）建立在当前帧处以零值折叠窗口的域。 帧提取单元（604）提取处理折叠的第一窗口的帧。 窗口生成单元（605）生成相反值和折叠窗口的第二窗口。 信号恢复单元（606）使原始信号从帧恢复。
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公开(公告)号：KR1020100114450A
公开(公告)日：2010-10-25
申请号：KR1020090116017
申请日：2009-11-27
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A high quality multiple audio coder and decoder is provided to control a target audio object signal by using a residual signal. CONSTITUTION: A first multiple object encoder(310) generates a first down-mix signal by mixing down a plurality of audio object signals. The first multiple object encoder extracts a first spatial parameter showing the object information of the audio object signal. A second multiple object encoder(330) generates a second down-mix signal by mixing down at least one target audio object signal with the first down-mix signal. The second multiple object encoder extracts a second spatial parameter showing the object information of at least one target audio object signal with the first down-mix signal.
Abstract translation: 目的：提供高质量的多音频编码器和解码器，通过使用残差信号来控制目标音频对象信号。 构成：第一多目标编码器（310）通过混合多个音频对象信号来产生第一缩减混音信号。 第一多对象编码器提取表示音频对象信号的对象信息的第一空间参数。 第二多目标编码器（330）通过将至少一个目标音频对象信号与第一缩减混音信号进行混合来产生第二缩减混音信号。 第二多对象编码器提取表示具有第一缩减混音信号的至少一个目标音频对象信号的对象信息的第二空间参数。
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公开(公告)号：KR1020100106193A
公开(公告)日：2010-10-01
申请号：KR1020090116054
申请日：2009-11-27
IPC: G10L19/008 , H04S3/00 , H04N7/24 , G11B20/10
Abstract: PURPOSE: A 3D binaural filtering system using SAC(Spectral Audio Doding) side information and a method thereof are provided to reduce the deterioration of sound quality in a binaural filtering procedure by outputting a 3D binaural signal without restoring a multi-channel audio signal through additional SAC information. CONSTITUTION: A stereo decoder(S110) outputs a PCM(Pulse Code Modulation) signal by decoding a downmix audio bitstream which constitutes a multichannel audio signal through terrestrial DMB(Digital Multimedia Broadcasting) and satellite DMB. An additional information analyzer(S130) extracts multichannel audio reproduction feature parameters through the analysis of additional information bistratem which constitutes the multichannel audio signal. A binaural filtering unit(S150) outputs a 3D binaural signal from a downmix audio signal through the multichannel audio reproduction feature parameters.
Abstract translation: 目的：提供使用SAC（频谱音频编码）侧信息的三维双耳滤波系统及其方法，以通过输出3D双耳信号而不通过附加的多声道音频信号来恢复双耳滤波过程中的声音质量的劣化 SAC信息。 构成：立体声解码器（S110）通过解码通过地面DMB（数字多媒体广播）和卫星DMB构成多声道音频信号的下混音频比特流来输出PCM（脉冲编码调制）信号。 附加信息分析器（S130）通过分析构成多声道音频信号的附加信息双速提取来提取多声道音频再现特征参数。 双耳滤波单元（S150）通过多声道音频再现特征参数从下混音频信号输出3D双耳信号。
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公开(公告)号：KR1020100062773A
公开(公告)日：2010-06-10
申请号：KR1020090012391
申请日：2009-02-16
Applicant: 한국전자통신연구원
CPC classification number: H04S7/302 , H04R1/403 , H04R5/02 , H04S3/008 , H04S2400/11 , H04S2420/01 , H04S2420/13
Abstract: PURPOSE: An audio contents player is provided to supply a stereophonic sound audio service including a presence by playing a sound source located on a side-posterior of a listener using minimum posterior speaker. CONSTITUTION: A sound source location producer(110) produces a sound source location of the sound source signals from an audio contents including a plurality of signal signals. A playback space information gaining unit(120) gains the playback space information toward the playback space of the audio contents. A signal processing unit(130) generates a plurality of signal signals with rendering the plurality of signal signals based on the sound source location and the playback space information. A transferring unit(140) respectively transmits the speaker signals to a plurality of speakers corresponding to the speaker signals.
Abstract translation: 目的：提供音频内容播放器以通过使用最小后置扬声器播放位于收听者的后方的声源来提供包括存在的立体声音频服务。 构成：声源位置产生器（110）从包括多个信号信号的音频内容产生声源信号的声源位置。 回放空间信息获取单元（120）将回放空间信息提供给音频内容的回放空间。 信号处理单元（130）基于声源位置和回放空间信息产生多个信号信号，并渲染多个信号信号。 传送单元（140）分别将扬声器信号发送到对应于扬声器信号的多个扬声器。
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公开(公告)号：KR1020100000846A
公开(公告)日：2010-01-06
申请号：KR1020080060494
申请日：2008-06-25
CPC classification number: G10L19/0019 , G10L19/008 , G11B27/102 , G11B27/322
Abstract: PURPOSE: A system and a method of grouping tracks inside a file are provided to group presentation metadata when multimedia tracks include overlapped presentation metadata, thereby storing the grouped metadata in a file. CONSTITUTION: A plurality of multimedia tracks is saved according to a file format like the ISO file format. The multimedia tracks are compressed in the same encoding method. If parts of presentation metadata information about an included audio track are the same, the metadata information is displayed using a group box not to overlappingly save the metadata information.
Abstract translation: 目的：当多媒体轨道包括重叠的呈现元数据时，提供将文件内的轨道分组的系统和方法来组合表示元数据，由此将分组的元数据存储在文件中。 构成：根据ISO文件格式的文件格式保存多个多媒体轨道。 多媒体轨道以相同的编码方式进行压缩。 如果关于所包括的音轨的演示元数据信息的部分相同，则使用不重叠保存元数据信息的组框来显示元数据信息。
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