APPARATUS FOR ENCODING AND DECODING MULTI-OBJECT AUDIO SUPPORTING POST DOWNMIX SIGNAL
摘要
PURPOSE: A multi-object audio encoding device for supporting a post downmix signal and a decoding device thereof are provided to create downmix information parameters distributed based on 0dB and perform quantization/inverse quantization. CONSTITUTION: An object information extraction and downmix generation unit(201) creates a downmix signal and object information from an input object. A parameter determining unit(202) includes a power offset calculating part which scales the post downmix signal into the preset value, and a parameter extracting part which extracts a downmix information parameter from the scaled post downmix signal in the specific frame. A bitstream generating unit(203) creates an object bit stream by combining the downmix information parameter and the object information.
申请公布号
KR20100008755(A)
申请公布日期
2010.01.26
申请号
KR20090061736
申请日期
2009.07.07
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人
SEO, JEONG IL;BEACK, SEUNG KWON;KANG, KYEONG OK;HONG, JIN WOO;KIM, JIN WOONG;AHN, CHIE TEUK;KIM, KWANG KI;HAHN, MIN SOO