공간오디오 부호화를 위한 채널간 위상차 합성 오류에 대한 분석

Domestic Conference
2010-02-01 21:32
Authors : 현동일, 서정일, 박영철, 윤대희

Year : 2010

Publisher / Conference : 한국통신학회 동계종합학술발표회

공간오디오 부호화에서는 채널간의 시간차를 합성하기 위해 채널간 위상차 정보를 이용한다. 채널간
위상차 합성과정에서 한쪽 채널에는 전체위상차 파라미터를 이용하여 합성하고 나머지 채널에는 채널간
위상차 파라미터로부터 전체위상차를 뺀 크기를 합성한다. 본 논문에서는 나머지 채널에 대한 채널간
위상차가 채널간 위상차로부터 전체위상차를 뺀 것과 일치하지 않음을 확인하였다. 공간파라미터에 따른
채널간 위상차 합성 오류를 수식과 시뮬레이션을 통해 분석하였다.
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