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1. 发明申请

WO2010036061A3 AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 审中-公开
标题翻译：一种处理音频信号的装置及其方法
公开(公告)号：WO2010036061A3
公开(公告)日：2010-07-22
申请号：PCT/KR2009005499
申请日：2009-09-25
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , KIM DONG SOO , YOON SUNG YONG , PANG HEE SUK , LIM JAE HYUN
发明人： LEE HYUN KOOK , KIM DONG SOO , YOON SUNG YONG , PANG HEE SUK , LIM JAE HYUN
IPC分类号： G10L19/04
CPC分类号： G10L19/025 , G10L19/008 , G10L19/02 , G10L21/038
摘要： An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving a spectral data of lower band and type information indicating a particular band extension scheme for a current frame of the audio signal from among a plurality of band extension schemes including a first band extension scheme and a second band extension scheme, by an audio processing apparatus; when the type information indicates the first band extension scheme for the current frame, generating a spectral data of higher band in the current frame using the spectral data of lower band by performing the first band extension scheme; and when the type information indicates the second band extension scheme for the current frame, generating the spectral data of higher band in the current frame using the spectral data of lower band by performing the second band extension scheme, wherein the first band extension scheme is based on a first data area of the spectral data of lower band, and wherein the second band extension scheme is based on a second data area of the spectral data of lower band.
摘要翻译：公开了一种用于处理音频信号的设备及其方法。本发明包括从包括第一频带扩展方案和第二频带扩展方案的多个频带扩展方案中接收指示用于音频信号的当前帧的特定频带扩展方案的较低频带的频谱数据和类型信息，一个音频处理装置; 当类型信息指示当前帧的第一频带扩展方案时，通过执行第一频带扩展方案使用低频带的频谱数据生成当前帧中的更高频带的频谱数据; 并且当类型信息指示当前帧的第二频带扩展方案时，通过执行第二频带扩展方案使用低频带的频谱数据生成当前帧中的更高频带的频谱数据，其中第一频带扩展方案基于在较低频带的频谱数据的第一数据区域上，并且其中第二频带扩展方案基于较低频带的频谱数据的第二数据区域。

2. 发明申请

WO2010036060A2 A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL 审中-公开
标题翻译：处理信号的方法和设备
公开(公告)号：WO2010036060A2
公开(公告)日：2010-04-01
申请号：PCT/KR2009005498
申请日：2009-09-25
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
发明人： LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
IPC分类号： G10L21/02 , G10L19/00 , G10L19/008
CPC分类号： G10L19/008
摘要： A method of processing a signal is disclosed. The present invention includes receiving (a) downmix signal being generated from plural-channel signal and (b) spatial information indicating attribute of the plural-channel signal in order to upmix the downmix signal and including phase shift flag indicating whether phase of a frame of at least one channel of the plural-channel signal is shifted; obtaining inter-channel phase difference(IPD) coding flag indicating whether IPD value is used to the spatial information from a header of the spatial information; obtaining IPD mode flag indicating whether the IPD value is used to frame of the spatial information from the frame based on the IPD coding flag; obtaining the IPD value of parameter band in the frame, based on the IPD mode flag; upmixing plural-channel signal by applying the IPD value to the downmix signal; and shifting the phase of the frame of the at least one channel of the plural-channel signal based on the phase shift flag.
摘要翻译：公开了一种处理信号的方法。本发明包括接收（a）从多声道信号产生的下混音信号和（b）指示多声道信号的属性的空间信息，以便上混下混音信号并且包括相移标志，该相移标志指示帧的相位多信道信号中的至少一个信道被移位; 从空间信息的头部获得指示IPD值是否被用于空间信息的信道间相位差（IPD）编码标记; 基于IPD编码标记从帧获得指示IPD值是否用于帧空间信息的IPD模式标志; 基于IPD模式标志获得帧中参数频带的IPD值; 通过将IPD值应用于缩混信号来上混多声道信号; 以及基于相移标志移位多信道信号的至少一个信道的帧的相位。

3. 发明申请

WO2010058931A3 A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL 审中-公开
标题翻译：处理信号的方法和设备
公开(公告)号：WO2010058931A3
公开(公告)日：2010-08-05
申请号：PCT/KR2009006714
申请日：2009-11-16
申请人： LG ELECTRONICS INC , YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
发明人： YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
IPC分类号： G10L19/00 , G10L19/02 , G10L19/022
CPC分类号： G10L19/022
摘要： A method of decoding an audio signal comprises obtaining a window feature of previous window frame indicating a window which is used to previous window frame; extracting first window feature information indicating a length of right window slope of current window frame; when the first window feature information indicates a length of long window slope, determining a window feature of the current window frame by using the first window feature information and the window feature of the previous window frame; when the first window feature information does not indicate a length of long window slope, extracting second window feature information indicating a unit of frequency transform of the current window frame; and determining a window feature of the current window frame by using the first window feature information, the second window feature information and the window feature of the previous window frame; and decoding an audio signal based on the window feature of the current window frame. Accordingly, by determining a window feature of a current window frame using a window feature of a previous window frame as well as using a feature of a right window of the current window frame applied to a current frame, first window feature information indicating an MDCT unit and second window feature information, it is able to reduce the number of bits allocated to indicate the window feature.
摘要翻译：一种解码音频信号的方法包括：获得指示用于前一窗口帧的窗口的前一窗口窗口的窗口特征; 提取指示当前窗口框的右窗口斜率的长度的第一窗口特征信息; 当第一窗口特征信息指示长窗口斜率的长度时，通过使用第一窗口特征信息和前一窗口窗口的窗口特征确定当前窗口帧的窗口特征; 当所述第一窗口特征信息未指示长窗口斜率的长度时，提取指示所述当前窗口帧的频率变换单位的第二窗口特征信息; 利用第一窗口特征信息，第二窗口特征信息和前一窗口窗口的窗口特征确定当前窗口帧的窗口特征; 以及基于当前窗口帧的窗口特征对音频信号进行解码。因此，通过使用前一窗口窗口的窗口特征以及使用应用于当前帧的当前窗口帧的右窗口的特征来确定当前窗口帧的窗口特征，第一窗口特征信息指示MDCT单元和第二窗口特征信息，能够减少分配用于指示窗口特征的比特数量。

4. 发明申请

WO2010035972A2 AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 审中-公开
标题翻译：一种处理音频信号的装置及其方法
公开(公告)号：WO2010035972A2
公开(公告)日：2010-04-01
申请号：PCT/KR2009005189
申请日：2009-09-11
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
发明人： LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
IPC分类号： H03M7/30 , G10L19/00 , G10L21/02 , G10L21/038 , G10L25/93
CPC分类号： G10L21/038 , G10L25/93
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a band extension scheme can be selectively applied according to a characteristic of an audio signal. The present invention includes receiving a signal and coding scheme information indicating whether a band extension scheme is applied to a current frame of the signal, by an audio processing apparatus, if the coding scheme information indicates that the band extension scheme is applied to the current frame, reconstructing a higher band in the current frame using the band extension scheme, and if the coding scheme information indicates that the band extension scheme is not applied to the current frame, decoding the current frame without using the band extension scheme.
摘要翻译：公开了一种用于处理音频信号的设备及其方法，通过该设备可根据音频信号的特性选择性地应用频带扩展方案。本发明包括：如果编码方案信息指示频带扩展方案被应用于当前帧，则由音频处理装置接收指示频带扩展方案是否被应用于信号的当前帧的信号和编码方案信息，使用频带扩展方案在当前帧中重构较高频带，并且如果编码方案信息指示频带扩展方案未应用于当前帧，则在不使用频带扩展方案的情况下对当前帧进行解码。

5. 发明申请

WO2010036059A3 A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL 审中-公开
标题翻译：一种处理信号的方法和装置
公开(公告)号：WO2010036059A3
公开(公告)日：2010-07-22
申请号：PCT/KR2009005497
申请日：2009-09-25
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
发明人： LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
IPC分类号： G10L19/00 , G10L19/008
CPC分类号： G10L19/008
摘要： A method of processing a signal is disclosed. The present invention includes receiving a downmix signal generated from plural channel signal and spatial information indicating attribute of the plural channel signal to upmix the downmix signal; obtaining inter-channel phase difference (IPD) coding flag indicating whether IPD value is used to the spatial information from header of the spatial information; obtaining IPD mode flag based on the IPD coding flag from the frame of the spatial information, the IPD mode flag indicating whether the IPD value is used to a frame of the spatial information; obtaining the IPD value of parameter band of parameter time slot in the frame, based on the IPD mode flag; smoothing the IPD value by modifying the IPD value by using IPD value of previous parameter time slot; and generating plural channel signal by applying the smoothed IPD value to the downmix signal.
摘要翻译：公开了处理信号的方法。本发明包括接收从多信道信号产生的下混合信号和指示多信道信号的属性的空间信息，以混合下混合信号; 指示是否将IPD值用于来自空间信息的头部的空间信息的信道间相位差（IPD）编码标志; 基于来自空间信息的帧的IPD编码标志获取IPD模式标志，表示IPD值是否被用于空间信息的帧的IPD模式标志; 基于IPD模式标志获取帧中参数时隙参数带的IPD值; 通过使用以前参数时隙的IPD值修改IPD值来平滑IPD值; 以及通过将平滑的IPD值应用于降混信号来产生多个信道信号。

6. 发明申请

WO2010036062A2 A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL 审中-公开
标题翻译：一种处理信号的方法和装置
公开(公告)号：WO2010036062A2
公开(公告)日：2010-04-01
申请号：PCT/KR2009005500
申请日：2009-09-25
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , KIM DONG SOO , YOON SUNG YONG , CHOI SUNG LIM , LIM JAE HYUN
发明人： LEE HYUN KOOK , KIM DONG SOO , YOON SUNG YONG , CHOI SUNG LIM , LIM JAE HYUN
IPC分类号： G10L19/00 , G10L19/008
CPC分类号： G10L19/008
摘要： A method of processing a signal is disclosed. The present invention includes receiving (a) a downmix signal being generated from plural-channel signal and (b) spatial information indicating attribute of the plural-channel signal, in order to upmix the downmix signal; obtaining inter-channel phase difference(IPD) coding flag indicating whether IPD value is used to the spatial information from a header of the spatial information; obtaining IPD mode flag indicating whether the IPD is used to frame of the spatial information from the frame based on the IPD coding flag; obtaining the IPD value from a parameter band in the frame based on the IPD mode flag; generating plural-channel signal by applying the IPD value to the downmix signal, wherein the spatial information is divided by header and a plurality of the frame and wherein the IPD value indicates phase difference between two channels of the plural-channel signal and wherein the parameter band is at least one sub-band of frequency domain including the IPD value.
摘要翻译：公开了处理信号的方法。本发明包括接收（a）从多声道信号产生的降混信号和（b）指示多声道信号的属性的空间信息，以便混合下混合信号; 从空间信息的头部获取指示是否将IPD值用于空间信息的信道间相位差（IPD）编码标志; 基于IPD编码标志，获取指示IPD是否用于来自该帧的空间信息的帧的IPD模式标志; 基于IPD模式标志从帧中的参数频带获取IPD值; 通过对下混合信号应用IPD值来生成多信道信号，其中空间信息被标题和多个帧划分，并且其中IPD值指示多信道信号的两个信道之间的相位差，并且其中参数频带是包括IPD值的频域的至少一个子带。

7. 发明申请

WO2009110751A3 METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL 审中-公开
标题翻译：用于处理音频信号的方法和设备
公开(公告)号：WO2009110751A3
公开(公告)日：2009-10-29
申请号：PCT/KR2009001081
申请日：2009-03-04
申请人： LG ELECTRONICS INC , LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
发明人： LEE HYUN KOOK , YOON SUNG YONG , KIM DONG SOO , LIM JAE HYUN
IPC分类号： G10L19/00 , G11B20/10 , H03M7/30 , H04N7/24
CPC分类号： G11B20/00007 , G10L19/20 , G11B2020/00014
摘要： The present invention is a method and an apparatus for processing an encoding signal capable of compressing and decompressing an audio signal at high efficiency. According to one embodiment of the present invention, an audio signal processing method is provided that includes discerning whether the coding type of an audio signal is a music signal coding type or not by using a first type information, discerning whether the coding type of the audio signal is a speech signal coding type or a mixed signal coding type by using a second type information, if the coding type of the audio signal is not a music signal coding type, extracting spectral data and linear prediction coefficients from the audio signal; if the coding type of the audio signal is a mixed signal coding type, generating a residual signal for linear prediction by performing Inverse Fourier Transform on the spectral data, decompressing the audio signal by linear prediction coding the linear prediction coefficients and the residual signal, and decompressing a high frequency area signal by using an extended base signal which is a partial area of the decompressed audio signal and bandwidth extension information. The method of the present invention enables a wide variety of audio signal types to be encoded and decoded at high efficiency.
摘要翻译：本发明是一种用于处理能够高效地压缩和解压缩音频信号的编码信号的方法和设备。根据本发明的一个实施例，提供了一种音频信号处理方法，其包括：通过使用第一类型信息来辨别音频信号的编码类型是否是音乐信号编码类型，辨别音频的编码类型如果音频信号的编码类型不是音乐信号编码类型，则从音频信号中提取频谱数据和线性预测系数;如果音频信号的编码类型不是音乐信号编码类型，则从音频信号中提取频谱数据和线性预测系数; 如果音频信号的编码类型是混合信号编码类型，则通过对频谱数据执行逆傅里叶变换来生成用于线性预测的残差信号，通过对线性预测系数和残差信号进行线性预测编码来对音频信号进行解压缩，以及通过使用作为解压缩音频信号的部分区域的扩展基本信号和带宽扩展信息来解压缩高频区域信号。本发明的方法使得各种各样的音频信号类型能够被高效地编码和解码。

8. 发明申请

WO2010047566A3 AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 审中-公开
标题翻译：一种用于处理音频信号的装置及其方法
公开(公告)号：WO2010047566A3
公开(公告)日：2010-08-05
申请号：PCT/KR2009006184
申请日：2009-10-26
申请人： LG ELECTRONICS INC , YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
发明人： YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
IPC分类号： H03M7/30 , G10L19/00
CPC分类号： G10L19/18 , G10L19/0212
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which extracting, by an audio processing apparatus, scheme type information indicating either time excitation scheme or frequency excitation scheme for each of a plurality of subframes included in current frame; when the time excitation scheme is applied to at least one subframe among the plurality of subframes according to the scheme type information, extracting mode information representing bit allocation of codebook index for the current frame; and, when the time excitation scheme is applied to at least one subframe among the plurality of subframes according to the scheme type information, decoding the at least one subframe using the mode information according to the time excitation scheme.
摘要翻译：公开了一种用于处理音频信号的装置及方法，由音频处理装置提取表示包括在当前帧中的多个子帧中的每个子帧的时间激励方案或频率激励方案的方案类型信息; 当根据方案类型信息将时间激励方案应用于多个子帧中的至少一个子帧时，提取表示当前帧的码本索引的比特分配的模式信息; 并且当根据方案类型信息将时间激励方案应用于多个子帧中的至少一个子帧时，使用根据时间激励方案的模式信息来解码该至少一个子帧。

9. 发明申请

WO2009038422A3 A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL 审中-公开
标题翻译：处理信号的方法和设备
公开(公告)号：WO2009038422A3
公开(公告)日：2009-05-22
申请号：PCT/KR2008005612
申请日：2008-09-22
申请人： LG ELECTRONICS INC , YOON SUNG YONG , PANG HEE SUK , KIM DONG SOO , LEE HYUN KOOK , LIM JAE HYUN
发明人： YOON SUNG YONG , PANG HEE SUK , KIM DONG SOO , LEE HYUN KOOK , LIM JAE HYUN
IPC分类号： H04N7/24
CPC分类号： H04N19/196 , G10L19/0212 , H04N19/42 , H04N19/463 , H04N19/94
摘要： A method of processing a signal is disclosed. The present invention includes receiving a maximum number of band and a code value of at least one section length, calculating a bit number corresponding to the code value of the at least one section length using the maximum number of the band, and obtaining the section length information by decoding the code value of the section length based on the bit number. A method of processing a signal is disclosed. The present invention includes receiving factor information of a current frame, receiving flag information indicating whether a coding mode of the factor information is an absolute value mode or a relative value mode, and obtaining factor data of the current frame using factor data of a previous frame and the received factor information based on the flag information.
摘要翻译：公开了一种处理信号的方法。本发明包括接收最大带数和至少一个部分长度的代码值，使用最大带数计算对应于至少一个部分长度的代码值的比特数，并且获得部分长度通过基于比特数对码段长度的码值进行解码来获得信息。公开了一种处理信号的方法。本发明包括当前帧的接收因子信息，接收指示因子信息的编码模式是绝对值模式还是相对值模式的标志信息，以及使用前一帧的因子数据获得当前帧的因子数据以及基于标志信息的接收到的因素信息。

10. 发明申请

WO2010053287A3 AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 审中-公开
标题翻译：一种用于处理音频信号的装置及其方法
公开(公告)号：WO2010053287A3
公开(公告)日：2010-08-05
申请号：PCT/KR2009006448
申请日：2009-11-04
申请人： LG ELECTRONICS INC , YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
发明人： YOON SUNG YONG , LEE HYUN KOOK , KIM DONG SOO , LIM JAE HYUN
IPC分类号： H03M7/30 , G10L19/00 , G10L19/028 , G10L19/035 , G10L19/16 , G10L21/038
CPC分类号： G10L21/038 , G10L19/028 , G10L19/035 , G10L19/167
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a method for processing an audio signal, comprising: extracting noise filling flag information indicating whether noise filling is used to a plurality of frames; extracting coding scheme information indicating whether a current frame included in the plurality of frames is coded in either a frequency domain or a time domain; when the noise filling flag information indicates that the noise filling is used to for the plurality of frames and the coding scheme information indicates that the current frame is coded in the frequency domain, extracting noise level information for the current frame; when a noise level value corresponding to the noise level information meets a predetermined level, extracting noise offset information for the current frame; and, when the noise offset information is extracted, performs the noise-filling for the current frame based on the noise level value and the noise offset information.
摘要翻译：公开了一种用于处理音频信号的装置及方法，用于处理音频信号的方法包括：提取指示是否对多个帧使用噪声填充的噪声填充标志信息; 提取指示在所述多个帧中包括的当前帧是否在频域或时域中编码的编码方案信息; 当噪声填充标志信息指示对于多个帧使用噪声填充，并且编码方案信息指示当前帧在频域中被编码时，提取当前帧的噪声电平信息; 当对应于噪声电平信息的噪声电平值满足预定电平时，提取当前帧的噪声偏移信息; 并且当提取噪声偏移信息时，基于噪声电平值和噪声偏移信息来执行当前帧的噪声填充。

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