公开(公告)号：EP2525357B1

公开(公告)日：2015-12-02

申请号：EP11733119.9

申请日：2011-01-17

Applicant: LG Electronics Inc. ,  Chungbuk National University Industry-Academic Cooperation Foundation

Inventor： JEONG, Gyuhyeok ,  KIM, Daehwan ,  KANG, Ingyu ,  KIM, Lagyoung ,  HONG, Kibong ,  PIAO, Zhigang ,  LEE, Insung ,  LIM, Jongha ,  MOON, Sanghyeon ,  LEE, Byungsuk ,  JEON, Hyejeong

IPC: G10L19/028 ,  G10L19/20 ,  G10L21/038 ,  G10L19/22 ,  G10L19/02

CPC classification number: G10L19/038 ,  G10L19/002 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/028 ,  G10L19/20 ,  G10L19/22 ,  G10L21/038

公开(公告)号：EP2610866A2

公开(公告)日：2013-07-03

申请号：EP11820168.0

申请日：2011-08-23

Applicant: LG Electronics Inc.

Inventor： LEE, Changheon ,  JEONG, Gyuhyeok ,  KIM, Lagyoung ,  JEON, Hyejeong ,  LEE, Byungsuk ,  KANG, Ingyu

IPC: G10L19/00 ,  G11B20/10

CPC classification number: G10L19/008 ,  G10L19/02 ,  G10L19/038 ,  G10L19/04 ,  G10L2019/0005

Abstract: The present invention provides a method for processing audio signals, and the method comprises the steps of: receiving input audio signals corresponding to a plurality of spectral coefficients; obtaining location information that indicates a location of a particular spectral coefficient among said spectral coefficients, on the basis of energy of said input signals: generating a shape vector by using said location information and said spectral coefficients; determining a codebook index by searching for a codebook corresponding to said shape vector; and transmitting said codebook index and said location information, wherein said shape vector is generated by using a part which is selected from said spectral coefficients, and said selected part is selected on the basis of said location information.

Abstract translation: 本发明提供一种处理音频信号的方法，该方法包括以下步骤：接收对应于多个频谱系数的输入音频信号; 基于所述输入信号的能量获得指示所述频谱系数中的特定频谱系数的位置的位置信息：通过使用所述位置信息和所述频谱系数产生形状矢量; 通过搜索与所述形状矢量对应的码本来确定码本索引; 以及发送所述码本索引和所述位置信息，其中通过使用从所述频谱系数中选择的部分来生成所述形状向量，并且所述选择的部分是基于所述位置信息来选择的。

公开(公告)号：EP2610866B1

公开(公告)日：2015-04-22

申请号：EP11820168.0

申请日：2011-08-23

Applicant: LG Electronics Inc.

Inventor： LEE, Changheon ,  JEONG, Gyuhyeok ,  KIM, Lagyoung ,  JEON, Hyejeong ,  LEE, Byungsuk ,  KANG, Ingyu

IPC: G10L19/038 ,  G10L19/02 ,  G10L19/04 ,  G10L19/00

CPC classification number: G10L19/008 ,  G10L19/02 ,  G10L19/038 ,  G10L19/04 ,  G10L2019/0005

Abstract: The present invention provides a method for processing audio signals, and the method comprises the steps of: receiving input audio signals corresponding to a plurality of spectral coefficients; obtaining location information that indicates a location of a particular spectral coefficient among said spectral coefficients, on the basis of energy of said input signals: generating a shape vector by using said location information and said spectral coefficients; determining a codebook index by searching for a codebook corresponding to said shape vector; and transmitting said codebook index and said location information, wherein said shape vector is generated by using a part which is selected from said spectral coefficients, and said selected part is selected on the basis of said location information.

公开(公告)号：EP2590164A2

公开(公告)日：2013-05-08

申请号：EP11801173.3

申请日：2011-07-01

Applicant: LG Electronics Inc.

Inventor： JEONG, Gyuhyeok ,  JEON, Hyejeong ,  KIM, Lagyoung ,  LEE, Byungsuk ,  KANG, Ingyu

IPC: G10L19/04 ,  G11B20/10

CPC classification number: G10L19/06 ,  G10L19/012 ,  G10L19/22 ,  G10L19/24 ,  G10L25/78

Abstract: Abstract: The present invention relates to a method for processing an audio signal, and the method comprises the steps of: receiving an audio signal; determining a coding mode corresponding to a current frame, by receiving network information for indicating the coding mode; encoding the current frame of said audio signal according to said coding mode; and transmitting said encoded current frame, wherein said coding mode is determined by the combination of a bandwidth and bitrate, and said bandwidth includes two or more bands among narrowband, wideband, and super wideband.

Abstract translation: 摘要：本发明涉及一种处理音频信号的方法，该方法包括以下步骤：接收音频信号; 通过接收用于指示编码模式的网络信息来确定与当前帧相对应的编码模式; 根据所述编码模式对所述音频信号的当前帧进行编码; 并且发送所述编码的当前帧，其中所述编码模式由带宽和比特率的组合确定，并且所述带宽包括窄带，宽带和超宽带中的两个或更多个频带。

公开(公告)号：EP2551848A2

公开(公告)日：2013-01-30

申请号：EP11759726.0

申请日：2011-03-23

Applicant: LG Electronics Inc.

Inventor： JEONG, Gyuhyeok ,  KIM, Daehwan ,  LEE, Changheon ,  KIM, Lagyoung ,  JEON, Hyejeong ,  LEE, Byungsuk ,  KANG, Ingyu

IPC: G10L19/12

CPC classification number: G10L19/04 ,  G10L19/06 ,  G10L19/22 ,  G10L19/24

Abstract: The present invention relates to a method for processing an audio signal, comprising: determining bandwidth information indicating to which of a plurality of bands the current frame corresponds; determining information on the order corresponding to the present frame on the basis of the bandwidth information; performing a linear predictive analysis of the present frame to generate a first set linear predictive transform coefficient of a first order; performing a vector quantization on the first set linear predictive coefficient to generate a first index; performing a linear predictive analysis of the current frame to generate a second set linear predictive transform coefficient of a second order in accordance with the information on the order; and performing a vector quantization on a second set difference by using the first set index and the second set linear predictive transform coefficient, when the second set linear predictive coefficient is generated.

Abstract translation: 处理音频信号的方法技术领域本发明涉及一种用于处理音频信号的方法，包括：确定指示当前帧对应于多个频带中的哪个频带的带宽信息; 基于带宽信息确定关于与当前帧对应的次序的信息; 对当前帧执行线性预测分析以生成第一阶的第一组线性预测变换系数; 对第一组线性预测系数执行矢量量化以生成第一索引; 执行当前帧的线性预测分析以根据关于次序的信息生成第二阶次的第二组线性预测变换系数; 以及当产生第二组线性预测系数时，通过使用第一组索引和第二组线性预测变换系数对第二组差分执行矢量量化。

公开(公告)号：EP2590164B1

公开(公告)日：2016-12-21

申请号：EP11801173.3

申请日：2011-07-01

Applicant: LG Electronics Inc.

Inventor： JEONG, Gyuhyeok ,  JEON, Hyejeong ,  KIM, Lagyoung ,  LEE, Byungsuk ,  KANG, Ingyu

IPC: G10L19/24 ,  G11B20/10 ,  G10L19/012 ,  G10L19/22 ,  G10L25/78

CPC classification number: G10L19/06 ,  G10L19/012 ,  G10L19/22 ,  G10L19/24 ,  G10L25/78

公开(公告)号：EP2525357A2

公开(公告)日：2012-11-21

申请号：EP11733119.9

申请日：2011-01-17

Applicant: LG Electronics Inc. ,  Chungbuk National University Industry-Academic Cooperation Foundation

Inventor： JEONG, Gyuhyeok ,  KIM, Daehwan ,  KANG, Ingyu ,  KIM, Lagyoung ,  HONG, Kibong ,  PIAO, Zhigang ,  LEE, Insung ,  LIM, Jongha ,  MOON, Sanghyeon ,  LEE, Byungsuk ,  JEON, Hyejeong

IPC: G10L19/04 ,  G10L21/02

CPC classification number: G10L19/038 ,  G10L19/002 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/028 ,  G10L19/20 ,  G10L19/22 ,  G10L21/038

Abstract: The present invention relates to a method for processing an audio signal, comprising: a step of performing a frequency conversion process on an audio signal to obtain a plurality of frequency transform coefficients; a step of selecting either a general mode or a non-general mode, on the basis of a pulse ratio, for the frequency transform coefficients having a high frequency band from among the plurality of frequency transform coefficients; and a step of performing, if the non-general mode is selected, the following steps: extracting a predetermined number of pulses from the frequency transform coefficients having the high frequency band, and generating pulse information; generating an original noise signal from the frequency transform coefficients having the high frequency band, excluding the pulses; generating a reference noise signal using the frequency transform coefficient having a low frequency band from among the plurality of frequency transform coefficients; and generating noise position information and noise energy information using the original noise signal and the reference noise signal.

Abstract translation: 本发明涉及一种用于处理音频信号的方法，包括：对音频信号执行频率转换处理以获得多个频率变换系数的步骤; 针对多个频率变换系数中具有高频带的频率变换系数，基于脉冲比来选择一般模式或非一般模式; 以及如果选择了非一般模式，则执行以下步骤：从具有高频带的频率变换系数中提取预定数量的脉冲，并产生脉冲信息; 从具有高频带的频率变换系数中产生原始噪声信号，排除脉冲; 使用所述多个频率变换系数中具有低频带的频率变换系数来生成参考噪声信号; 以及使用原始噪声信号和参考噪声信号生成噪声位置信息和噪声能量信息。

公开(公告)号：EP2511904A2

公开(公告)日：2012-10-17

申请号：EP10836230.2

申请日：2010-12-10

Applicant: LG Electronics Inc. ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： JEON, Hyejeong ,  KIM, Daehwan ,  JEONG, Gyuhyeok ,  LEE, Minki ,  KANG, Honggoo ,  LEE, Byungsuk ,  KIM, Lagyoung

IPC: G10L19/04

CPC classification number: G10L19/07 ,  G10L2019/0007 ,  G10L2019/001 ,  G10L2019/0013 ,  G10L2019/0016

Abstract: According to the present invention, a linear prediction filter coefficient of a current frame is acquired from an input signal using linear prediction, a quantized spectrum candidate vector of the current frame, corresponding to the linear prediction filter coefficient of the current frame, is acquired on the basis of first best information, and the quantized spectrum candidate vector of the current frame and the quantized spectrum vector of the previous frame are interpolated. Accordingly, in contrast to conventional phased optimization techniques, optimum parameters which minimize quantization errors, can be obtained.

Abstract translation: 根据本发明，从使用线性预测的输入信号中获取当前帧的线性预测滤波器系数，对应于当前帧的线性预测滤波器系数的当前帧的量化频谱候选向量被获取在 内插第一最佳信息的基础以及当前帧的量化频谱候选矢量和前一帧的量化频谱矢量。 因此，与传统的相位优化技术相反，可以获得最小化量化误差的最佳参数。