음성/음악 통합 신호의 부호화/복호화 장치
    21.
    发明公开
    음성/음악 통합 신호의 부호화/복호화 장치 有权
    编码和解码集成语音和音乐的装置和方法

    公开(公告)号:KR1020100007749A

    公开(公告)日:2010-01-22

    申请号:KR1020090062070

    申请日:2009-07-08

    Abstract: PURPOSE: An apparatus and a method for encoding and decoding an integrated voice and music signal are provided to effectively select internal modules according to a characteristic of an input signal, thereby providing excellent sound quality to both a voice signal and a music signal at various bit rates. CONSTITUTION: An input signal analysis unit(110) analyzes a characteristic of an input signal. When the input signal is a music characteristic signal, the first conversion encoding unit(120) converts the input signal into a frequency domain to encode. When the input signal is a voice characteristic signal, an LPC(Linear Predictive Coding) encoder encodes the input signal based on LPC. A bit stream generator(140) uses output signals of the first conversion encoding unit and the LPC encoder to generate a bit stream.

    Abstract translation: 目的:提供一种用于编码和解码集成语音和音乐信号的装置和方法,以根据输入信号的特性有效地选择内部模块,从而为语音信号和音乐信号在各种位提供优良的音质 率。 构成:输入信号分析单元(110)分析输入信号的特性。 当输入信号是音乐特征信号时,第一转换编码单元(120)将输入信号转换成频域进行编码。 当输入信号是语音特征信号时,LPC(线性预测编码)编码器基于LPC对输入信号进行编码。 比特流生成器(140)使用第一转换编码单元和LPC编码器的输出信号来产生比特流。

    오디오 신호의 상태결정 장치
    22.
    发明公开
    오디오 신호의 상태결정 장치 失效
    音频信号信号状态决定的装置

    公开(公告)号:KR1020100007741A

    公开(公告)日:2010-01-22

    申请号:KR1020090061645

    申请日:2009-07-07

    CPC classification number: G10L19/22 G10L19/0212 G10L19/04 G10L19/20

    Abstract: PURPOSE: An apparatus for determining a signal state of an audio signal is provided to suitably select a voice encoder based on LPC(Linear Predictive Coding) and an audio encoder based on conversion according to a characteristic of an input signal. CONSTITUTION: A signal state observer(101) classifies characteristics of an input signal to output each state observation probability. A state chain unit(102) outputs a state identifier of a frame of the input signal based on the state observation probability. An encoder encoding a frame of the input signal is determined according to the state identifier. The signal state observer comprises a characteristic extracting unit, an entropy base determining tree and a silence state determining unit.

    Abstract translation: 目的:提供一种用于确定音频信号的信号状态的装置,以根据输入信号的特性,基于LPC(线性预测编码)和基于转换的音频编码器适当地选择语音编码器。 构成:信号状态观察器(101)对输入信号的特性进行分类以输出每个状态观测概率。 状态链单元(102)基于状态观察概率输出输入信号的帧的状态标识符。 根据状态标识符确定编码输入信号的帧的编码器。 信号状态观察器包括特征提取单元,熵基准确定树和静默状态确定单元。

    다중경로 혼합신호 분리계수의 교환 모호성을 해소하는방법 및 그 장치
    23.
    发明授权
    다중경로 혼합신호 분리계수의 교환 모호성을 해소하는방법 및 그 장치 失效
    다중경로혼합신호분리계수의교환모호성을해소하는방법및그장치

    公开(公告)号:KR100653173B1

    公开(公告)日:2006-12-05

    申请号:KR1020050114409

    申请日:2005-11-28

    Abstract: A method and an apparatus for solving the permutation ambiguity of a separation coefficient of a multi-channel mixed signal are provided to prevent the mixing of different sound source signals, thereby accurately separating an original signal from the mixed signal. An ICA(Independent Component Analysis) input matrix is created in a row vector type of a back-mixing matrix corresponding to a separation coefficient(401). A base vector matrix and a deflection coefficient matrix are extracted using the created ICA method(402). A base vector index value regarding a column vector of a mixing vector is selected by comparing the extracted base vector matrix and deflection coefficient matrix with each other(403). A corresponding clustering including the column vector of the mixing vector is determined based on the selected base vector index value(404).

    Abstract translation: 提供了一种用于解决多声道混合信号的分离系数的置换模糊的方法和装置,以防止不同声源信号的混合,从而将混合信号中的原始信号准确地分离。 在与分离系数相对应的反向混合矩阵的行向量类型中创建ICA(独立分量分析)输入矩阵(401)。 使用所创建的ICA方法提取基矢量矩阵和偏转系数矩阵(402)。 通过将提取的基矢量矩阵和偏转系数矩阵相互比较来选择关于混合矢量的列矢量的基矢量索引值(403)。 基于所选择的基矢量索引值(404)确定包括混合矢量的列矢量的相应聚类。

    음성/음악 통합 신호의 부호화/복호화 장치
    27.
    发明授权
    음성/음악 통합 신호의 부호화/복호화 장치 有权
    编码和解码整合语音和音乐的装置

    公开(公告)号:KR101565634B1

    公开(公告)日:2015-11-04

    申请号:KR1020120076635

    申请日:2012-07-13

    Abstract: 음성/음악통합신호의부호화/복호화장치가개시된다. 음성/음악통합신호의부호화장치는, 입력신호의특성을분석하는입력신호분석부, 상기입력신호가스트레오신호인경우모노신호로다운믹스하고, 스테레오음상정보를추출하는스테레오부호화부, 상기입력신호를고주파대역신호로확장하는주파수대역확장부, 상기주파수대역확장부의출력신호에대한샘플링율을변환하는샘플링율변환부, 상기입력신호가음성특성을가지는신호인경우, 음성부호화모듈을사용하여상기입력신호를부호화하는음성신호부호화부, 상기입력신호가음악특성을가지는신호인경우, 음악부호화모듈을사용하여상기입력신호를부호화하는음악신호부호화부및 상기음성신호부호화부의출력신호및 상기음악신호부호화부의출력신호를이용하여비트스트림을생성하는비트스트림생성부를포함한다.

    모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기
    30.
    发明公开
    모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기 有权
    统一语音/音频编码器(USAC)处理窗口序列模式切换

    公开(公告)号:KR1020130054976A

    公开(公告)日:2013-05-27

    申请号:KR1020130048838

    申请日:2013-04-30

    CPC classification number: G10L19/22 G10L19/022 G10L19/20

    Abstract: PURPOSE: An integrated voice/audio coding/decoding device for processing a window sequence based on mode switching is provided to differently perform a coding method corresponding to a property of an input signal, thereby maximizing coding performance and sound quality. CONSTITUTION: An integrated voice/audio coding/decoding device performs LPD(Linear Prediction Domain) mode switching for a sub-frame which comprises a frame of an input signal. The integrated voice/audio coding/decoding device codes the input signal by applying a window based on an LPD mode to a current sub-frame. The integrated voice/audio coding/decoding device applies the window to the current sub-frame. The window is changed corresponding to an LPD mode of a previous sub-frame and an LPD mode of a next sub-frame.

    Abstract translation: 目的:提供一种用于基于模式切换处理窗口序列的集成语音/音频编码/解码设备,以不同地执行与输入信号的属性相对应的编码方法,从而最大化编码性能和声音质量。 构成:集成语音/音频编码/解码装置对包括输入信号的帧的子帧执行LPD(线性预测域)模式切换。 集成语音/音频编码/解码装置通过将基于LPD模式的窗口应用于当前子帧来对输入信号进行编码。 集成语音/音频编码/解码装置将窗口应用于当前子帧。 该窗口对应于先前子帧的LPD模式和下一个子帧的LPD模式而改变。

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