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公开(公告)号：WO2010008179A1
公开(公告)日：2010-01-21
申请号：PCT/KR2009/003861
申请日：2009-07-14
IPC: G01L19/14
CPC classification number: G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
Abstract: 음성 및 음악 신호를 통합적으로 부호화 및 복호화 하는 장치 및 방법이 제공된다. 상기 부호화 장치(100)는 입력 신호의 특성을 분석하는 입력 신호 분석부(110); 상기 입력 신호를 주파수 영역 신호로 변환하고, 상기 입력 신호가 음성 특성 신호인 경우 상기 입력 신호를 부호화하는 제1 변환 부호화부(120); 상기 입력 신호가 음성 특성 신호인 경우 상기 입력 신호를 선형예측코딩(LPC)에 기반하여 부호화하는 선형예측코딩(LPC) 부호화부; 그리고, 상기 제1 변환 부호화부(120)의 출력 신호 및 상기 LPC 부호화부(130)의 출력 신호를 사용하여 비트스트림을 생성하는 비트스트림 발생부(140)를 포함할 수 있다.
Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的装置和方法。 编码装置（100）可以包括：输入信号分析器（110），用于分析输入信号的特性; 第一转换编码器（120），用于将输入信号修改为频域信号，并且在输入信号是音频特征信号时对输入信号进行编码; 执行输入信号的LPC编码的线性预测编码（LPC）编码器（130）是语音特征信号; 以及使用第一转换编码器（120）的输出信号和LPC编码器（130）的输出信号来生成比特流的比特流生成器（140）。
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公开(公告)号：KR101848866B1
公开(公告)日：2018-04-13
申请号：KR1020170068465
申请日：2017-06-01
Applicant: 한국전자통신연구원
CPC classification number: G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26
Abstract: MDCT 기반음성/오디오통합부호화기의 LPC 잔차신호부호화/복호화장치가개시된다. LPC 잔차신호부호화장치는, 입력신호의특성을분석하여 LPC 필터링된신호의부호화방법을선택하고, 실수필터뱅크(real filterbank), 복소필터뱅크(complex filterbank), 및 ACELP(Algebraic code excited linear prediction) 중하나에기초하여상기 LPC 잔차신호를부호화한다.
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公开(公告)号：KR1020160100288A
公开(公告)日：2016-08-23
申请号：KR1020160102399
申请日：2016-08-11
Applicant: 한국전자통신연구원
CPC classification number: G10L19/087 , G10L19/125 , G10L19/22 , G10L19/26 , G10L19/173 , G10L19/12 , G10L19/18
Abstract: MDCT 기반음성/오디오통합부호화기의 LPC 잔차신호부호화/복호화장치가개시된다. LPC 잔차신호부호화장치는, 입력신호의특성을분석하여 LPC 필터링된신호의부호화방법을선택하고, 실수필터뱅크(real filterbank), 복소필터뱅크(complex filterbank), 및 ACELP(Algebraic code excited linear prediction) 중하나에기초하여상기 LPC 잔차신호를부호화한다.
Abstract translation: 公开了一种用于基于MDCT的统一语音和音频编码的LPC残余信号的编码和解码装置。 用于LPC残差信号的编码装置分析输入信号的特性，选择LPC滤波信号的编码方法，并根据实数滤波器组，复滤波器组，代数码激励线性预测（ACELP）中的一个编码LPC残差信号， 。 因此，可以提高编码性能。
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公开(公告)号：KR101565633B1
公开(公告)日：2015-11-13
申请号：KR1020120076634
申请日：2012-07-13
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/00
CPC classification number: G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
Abstract: 음성/음악통합신호의부호화/복호화방법및 장치가개시된다. 음성/음악통합신호의부호화장치는, 입력신호의특성을분석하는입력신호분석부, 상기입력신호가음악특성신호인경우, 상기입력신호를주파수영역으로변환하여부호화하는제1 변환부호화부, 상기입력신호가음성특성신호인경우, 상기입력신호를 LPCLinear Predictive Coding)기반부호화하는 LPC 부호화부및 상기제1 변환부호화부의출력신호및 상기 LPC 부호화부의출력신호를이용하여비트스트림을생성하는비트스트림생성부를포함한다.
Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的装置和方法。 编码装置可以包括：输入信号分析器，用于分析输入信号的特性; 第一转换编码器，用于将输入信号转换为频域信号，并且在输入信号是音频特征信号时对输入信号进行编码; 线性预测编码（LPC）编码器，用于当输入信号是语音特征信号时执行输入信号的LPC编码; 以及比特流发生器，用于使用第一转换编码器的输出信号和LPC编码器的输出信号来产生比特流。
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公开(公告)号：KR101527441B1
公开(公告)日：2015-06-11
申请号：KR1020110017283
申请日：2011-02-25
Applicant: 한국전자통신연구원
Abstract: 복수의채널을통해공간감을제공하는오디오신호에서특정한음원이채널사이의관계파라미터를기준으로특정한분포를가진다는가정을기반으로해당음원의분포를학습하여혼합신호로부터해당음원의에너지기여도만큼의분량을분리할수 있는음원분리장치및 방법이개시된다. 본발명에따르면, 특정음원의일반적인채널분포정보를대략적으로모델링한상황에서입력혼합신호에포함되어있는특정음원의채널분포를보다정밀하게예측할수 있으며, 기존의채널기반음원분리방식보다정교한분리가가능하다.
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Patent Agency Ranking
公开(公告)号：KR1020110029055A
公开(公告)日：2011-03-22
申请号：KR1020090122218
申请日：2009-12-10
Applicant: 한국전자통신연구원
IPC: G10L21/0272 , G10L25/81
Abstract: PURPOSE: A method and system for separating a music sound source without using a sound source database are provided to separate a sound source generated using a rhythm musical instrument based on characteristics of the rhythm musical instrument repeated in an aspect of time, and thereby may separate a sound source included in a mixed signal even when a learning database generated using a specific sound source is absent. CONSTITUTION: An NMPCF(Nonnegative Matrix Partial Co-Factorization) analysis unit(130) obtains info nation shared by the plurality of segments in accordance with an NMPCF algorithm. A rhythm instrument signal has frequency characteristics such as a pitch, that may not be easily changed, and may be repeatedly generated, whereby the shared information may correspond to information of a rhythm musical instrument. A target instrument signal separating unit(140) separates a target instrument signal corresponding to a specific sound source from the mixed signal by calculating an inner product between the entity matrices obtained by the NMPCF analysis unit. The target instrument signal is a signal including sounds generated using the rhythm musical instrument. A signal association unit(150) associates the target instrument signals for each of the plurality of segments separated in the target instrument signal separating unit.
Abstract translation: 目的：提供一种用于在不使用声源数据库的情况下分离音乐声源的方法和系统，用于基于在一段时间内重复的节奏乐器的特征来分离使用节奏乐器产生的声源，从而可以分离 即使当使用特定声源生成的学习数据库不存在时，也包含在混合信号中的声源。 构成：NMPCF（非负矩阵部分协同因子分解）分析单元（130）根据NMPCF算法获得由多个段共享的信息国。 节奏乐器信号具有诸如间距的频率特性，其可能不容易改变，并且可以重复地产生，由此共享信息可以对应于节奏乐器的信息。 目标仪器信号分离单元（140）通过计算由NMPCF分析单元获得的实体矩阵之间的内积，将与特定声源相对应的目标仪器信号与混合信号分离。 目标仪器信号是包括使用节奏乐器产生的声音的信号。 信号关联单元（150）将目标仪器信号分离单元中分离出的多个分段中的每个分段的目标仪器信号相关联。
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17.发明公开객체기반 오디오 서비스를 위한 비트스트림 구조화 방법, 비트스트림 구조화 장치 및 비트스트림 부호화 장치 有权用于基于对象的音频服务的BIT-STREAM结构的装置和方法以及用于编码位流的装置
公开(公告)号：KR1020110023693A
公开(公告)日：2011-03-08
申请号：KR1020090127946
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: G10L19/20 , H04N5/60 , H04N21/233 , G11B20/10
Abstract: PURPOSE: An apparatus and a method for structuring bitstream for an object-based audio service are provided to reduce a degradation in the sound quality occurring due to an excessive volume control by designating an upper bound value and a lower bound value of a reproduction volume in an object-based audio service. CONSTITUTION: A bitstream splitting unit divides a bitstream into a file header, and an audio object frame through sound source splitting(110). A reproduction level information storage unit stores the reconstruction level information for the regeneration of the audio object within the file header(120). A preset storage unit stores the preset information for the regeneration of the audio object within the file header(130).
Abstract translation: 目的：提供一种用于构建用于基于对象的音频服务的比特流的装置和方法，以通过指定再现音量的上限值和下限值来减少由于过度音量控制而产生的声音质量下降 一种基于对象的音频服务。 构成：比特流分割单元通过声源分割将比特流分成文件头和音频对象帧（110）。 再现级别信息存储单元将用于音频对象再生的重建级别信息存储在文件头部（120）内。 预设存储单元将用于音频对象的再生的预设信息存储在文件头部（130）内。
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公开(公告)号：KR1020110023688A
公开(公告)日：2011-03-08
申请号：KR1020090122217
申请日：2009-12-10
Applicant: 한국전자통신연구원 , 포항공과대학교 산학협력단
IPC: G10L21/0272 , G10L25/81
Abstract: PURPOSE: A system for separating musical sound source is provided to efficiently divide a specific sound source in a mixed sound source by reorganizing the mixed sound source into the specific sound source and other sound source. CONSTITUTION: A system for separating musical sound source includes a database(110), a time-frequency domain conversion unit(120), an NMPCF(Nonnegative Matrix Partial Co-Factorization) analysis unit(130), a target instrument signal separating unit(140), and a time domain signal conversion unit(150). The database stores information about a solo performance using a predetermined musical instrument, and transmits the information about the solo performance as a type of a predetermined sound source signal(x1). The predetermined sound source has a significantly great amount of data to include various characteristics of the predetermined sound source. In this case, a great amount of database signals may need to be processed for each sound source separation operation.
Abstract translation: 目的：提供一种用于分离音乐声源的系统，通过将混合声源重组为特定声源和其他声源来有效地分割混合声源中的特定声源。 用于分离音乐声源的系统包括数据库（110），时间 - 频域转换单元（120），NMPCF（非负矩阵部分因子分解）分析单元（130），目标仪器信号分离单元 140）和时域信号转换单元（150）。 数据库使用预定的乐器存储关于个人演奏的信息，并且发送关于个性表演的信息作为预定声源信号的类型（x1）。 预定声源具有显着大量的数据以包括预定声源的各种特性。 在这种情况下，可能需要为每个声源分离操作处理大量的数据库信号。
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公开(公告)号：KR1020100059726A
公开(公告)日：2010-06-04
申请号：KR1020090114783
申请日：2009-11-25
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/04 , G10L19/18 , H03M7/30 , H04N21/233
CPC classification number: G10L19/22 , G10L19/022 , G10L19/20
Abstract: PURPOSE: A unified speech/audio coder(USAC) processing windows sequence based mode switching is provided to perform encoding or decoding by processing different window sequences for different situation, thereby improving coding efficiency. CONSTITUTION: A mode switching unit performs inter-linear prediction domain mode switching for the sub-frames which constitute a frame of an input signal. An encoding unit applies a window sequence to current encoding subframes, wherein the window sequence is based on a switched LPD(Linear Prediction Domain) mode. In addition, the encoding unit applies a changed window sequence to the current encoding subframe according to the LPD modes of previous and following subframes.
Abstract translation: 目的：提供统一的语音/音频编码器（USAC）处理基于Windows序列的模式切换，通过对不同情况处理不同的窗口序列进行编码或解码，从而提高编码效率。 构成：模式切换单元对构成输入信号的帧的子帧进行线间预测域模式切换。 编码单元将窗口序列应用于当前编码子帧，其中窗口序列基于切换的LPD（线性预测域）模式。 此外，编码单元根据前一个和后一个子帧的LPD模式将改变的窗口序列应用于当前编码子帧。
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公开(公告)号：KR1020100007749A
公开(公告)日：2010-01-22
申请号：KR1020090062070
申请日：2009-07-08
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: G10L19/04 , G10L19/18 , G10L19/008
CPC classification number: G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
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。
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