公开(公告)号：US08774418B2

公开(公告)日：2014-07-08

申请号：US13417157

申请日：2012-03-09

申请人： Pao-Chi Chang ,  Tai-Ming Chang ,  Yi-Ming Shiu

发明人： Pao-Chi Chang ,  Tai-Ming Chang ,  Yi-Ming Shiu

IPC分类号： H04R5/00

CPC分类号： H04S3/008 ,  H04S7/308 ,  H04S2400/03 ,  H04S2420/01

摘要： A down-mixing device is provided. 5.1-channel sounds are down-mixed into 4-channel sounds with high-quality multi-channel surrounding sound effect reappeared. A common-acoustic-pole and zero (CAPZ) model is used to rebuild frequency responses of original head-related transfer functions (HRTF). Direct sounds, reflection sounds and late reverberation in a spatial sound field are gathered. Thus, varieties of sounds become rich and 3-dimensional hearing experiences are enhanced with low cost for a 4-channel earphones system.

摘要翻译： 提供下混装置。 5.1声道的声音被混合成4声道声音，高质量的多声道环绕声效果重新出现。 共同声柱和零（CAPZ）模型用于重建原始头相关传输函数（HRTF）的频率响应。 收集直接声音，反射声音和空间声场中的后期混响。 因此，对于4声道耳机系统，声音的品种变得丰富，并且以低成本增强了三维听觉体验。

公开(公告)号：US20130182853A1

公开(公告)日：2013-07-18

申请号：US13417157

申请日：2012-03-09

申请人： Pao-Chi Chang ,  Tai-Ming Chang ,  Yi-Ming Shiu

发明人： Pao-Chi Chang ,  Tai-Ming Chang ,  Yi-Ming Shiu

IPC分类号： H04R5/00

CPC分类号： H04S3/008 ,  H04S7/308 ,  H04S2400/03 ,  H04S2420/01

摘要： A down-mixing device is provided. 5.1-channel sounds are down-mixed into 4-channel sounds with high-quality multi-channel surrounding sound effect reappeared. A common-acoustic-pole and zero (CAPZ) model is used to rebuild frequency responses of original head-related transfer functions (HRTF). Direct sounds, reflection sounds and late reverberation in a spatial sound field are gathered. Thus, varieties of sounds become rich and 3-dimensional hearing experiences are enhanced with low cost for a 4-channel earphones system.

摘要翻译： 提供下混装置。 5.1声道的声音被混合成4声道声音，高质量的多声道环绕声效果重新出现。 共同声柱和零（CAPZ）模型用于重建原始头相关传输函数（HRTF）的频率响应。 收集直接声音，反射声音和空间声场中的后期混响。 因此，对于4声道耳机系统，声音的品种变得丰富，并且以低成本增强了三维听觉体验。