본 논문에서는 스테레오 오디오 신호를 이용하여 음원을 분리하는 ADRess 알고리즘을 기반으로, 추정된 음원 방위각에 대한 신호 강도비를 이용하여 분리음원을 생성하는 새로운 분리음원 합성 기법을 제안한다. 입력된 스테레오 채널 신호 간 강도 차(IID) 특성을 이용하여 신호 분석 프레임별로 개선된 신호 강도비 함수에 따른 frequency-azimuth 평면을 구성하고, 이를 통해 추정된 방위각에 상응하는 신호 강도비로 표현되는 확률밀도함수를 좌/우 신호 중 하나의 주 입력 신호에 취함으로써 분리음원을 합성한다. 제안된 기법의 성능을 검증하기 위하여 SASSEC 에서 제공하는 테스트 음원 및 객관적 평가 지표를 이용하여 측정한 결과, 기존 ADRess 알고리즘에서 제시된 방법에 비해 개선된 품질의 분리음원을 합성하는 것으로 평가되었다.
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