公开(公告)号：US09626976B2

公开(公告)日：2017-04-18

申请号：US14165540

申请日：2014-01-27

申请人： LG Electronics Inc.

发明人： Yang-Won Jung ,  Hee Suk Pang ,  Hyen O Oh ,  Dong Soo Kim ,  Jae Hyun Lim

IPC分类号： H04R5/00 ,  G10L19/008 ,  G10L19/16 ,  G10L19/24 ,  H04S3/00

CPC分类号： G10L19/008 ,  G10L19/167 ,  G10L19/24 ,  H04S3/008 ,  H04S2420/01 ,  H04S2420/03

摘要： An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a three-dimensional (3D) down-mix signal and spatial information from the input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using a down-mix signal obtained by the removal and the spatial information. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment.

公开(公告)号：US20140222439A1

公开(公告)日：2014-08-07

申请号：US14165540

申请日：2014-01-27

申请人： LG Electronics Inc.

发明人： Yang-Won Jung ,  Hee Suk Pang ,  Hyen O. Oh ,  Dong Soo Kim ,  Jae Hyun Lim

IPC分类号： G10L19/008

CPC分类号： G10L19/008 ,  G10L19/167 ,  G10L19/24 ,  H04S3/008 ,  H04S2420/01 ,  H04S2420/03

摘要： An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a three-dimensional (3D) down-mix signal and spatial information from the input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using a down-mix signal obtained by the removal and the spatial information. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment.

摘要翻译： 提供了编码方法和装置以及解码方法和装置。 解码方法包括跳过包括在输入比特流中的扩展信息，从输入比特流中提取三维（3D）降混信号和空间信息，通过对3D降混信号执行3D渲染操作来去除3D降混信号的3D效果 3D下混合信号，并且使用通过去除获得的缩减混音信号和空间信息来生成多声道信号。 因此，可以有效地编码具有3D效果的多声道信号，并根据音频再现环境的特性自适应地恢复和再现具有最佳声音质量的音频信号。

公开(公告)号：US09595267B2

公开(公告)日：2017-03-14

申请号：US14558649

申请日：2014-12-02

申请人： LG ELECTRONICS INC.

发明人： Hyen-O Oh ,  Hee Suk Pang ,  Dong Soo Kim ,  Jae Hyun Lim ,  Yang-Won Jung

IPC分类号： H04R5/00 ,  G10L19/008

CPC分类号： G10L19/008

摘要： Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal, generating surround converting information using the spatial information and rendering the downmix signal to generate a pseudo-surround signal in a previously set rendering domain, using the surround converting information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal, an information converting part generating surround converting information using the spatial information and a pseudo-surround generating part rendering the downmix signal to generate a pseudo-surround signal in a previous set rendering domain, using the surround converting information.

摘要翻译： 提供了用于处理音频信号的方法和装置。 用于对音频信号进行解码的方法包括从接收的音频信号中提取下混合信号和空间信息，使用空间信息产生环绕转换信息，并使用下混合信号在先前设置的渲染域中产生伪环绕信号， 环绕转换信息。 用于对音频信号进行解码的装置包括从接收到的音频信号中提取下混合信号和空间信息的解复用部分，使用该空间信息生成环绕转换信息的信息转换部分和呈现下混合信号的伪环绕声产生部分， 使用环绕转换信息的先前设定的渲染域中的伪环绕信号。

公开(公告)号：US20150088530A1

公开(公告)日：2015-03-26

申请号：US14558649

申请日：2014-12-02

申请人： LG ELECTRONICS INC.

发明人： Hyen-O Oh ,  Hee Suk Pang ,  Dong Soo Kim ,  Jae Hyun Lim ,  Yang-Won Jung

IPC分类号： G10L19/008

CPC分类号： G10L19/008

摘要： Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal, generating surround converting information using the spatial information and rendering the downmix signal to generate a pseudo-surround signal in a previously set rendering domain, using the surround converting information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal, an information converting part generating surround converting information using the spatial information and a pseudo-surround generating part rendering the downmix signal to generate a pseudo-surround signal in a previous set rendering domain, using the surround converting information.

摘要翻译： 提供了用于处理音频信号的方法和装置。 用于对音频信号进行解码的方法包括从接收的音频信号中提取下混合信号和空间信息，使用空间信息产生环绕转换信息，并使用下混合信号在先前设置的渲染域中产生伪环绕信号， 环绕转换信息。 用于对音频信号进行解码的装置包括从接收到的音频信号中提取下混合信号和空间信息的解复用部分，使用该空间信息生成环绕转换信息的信息转换部分和呈现下混合信号的伪环绕声产生部分， 使用环绕转换信息的先前设定的渲染域中的伪环绕信号。