Invention Grant
US08798276B2 Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal
有权
用于编码多声道音频信号的方法和装置以及用于解码多声道音频信号的方法和装置
- Patent Title: Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal
- Patent Title (中): 用于编码多声道音频信号的方法和装置以及用于解码多声道音频信号的方法和装置
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Application No.: US12761070Application Date: 2010-04-15
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Publication No.: US08798276B2Publication Date: 2014-08-05
- Inventor: Han-gil Moon , Chul-woo Lee
- Applicant: Han-gil Moon , Chul-woo Lee
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2009-0076338 20090818
- Main IPC: H04S3/02
- IPC: H04S3/02 ; G10L19/008 ; H04S5/02 ; H04S3/00
Abstract:
A method and apparatus which encode multi-channel audio signals and a method and apparatus which decode multi-channel audio signals. When encoding, a downmixed audio signal, first additional information for restoring multi-channel audio signals from the downmixed audio signal, and second additional information representing characteristics of a residual signal are multiplexed. When decoding, restored multi-channel audio signals having a predetermined phase difference are combined using the second additional information, and an audio signal of each channel is corrected, in order to improve quality of the restored audio signals.
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