公开(公告)号：US20140222439A1

公开(公告)日：2014-08-07

申请号：US14165540

申请日：2014-01-27

Applicant: LG Electronics Inc.

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

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/167 ,  G10L19/24 ,  H04S3/008 ,  H04S2420/01 ,  H04S2420/03

Abstract: 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.

Abstract translation: 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。