公开(公告)号：US20130142338A1

公开(公告)日：2013-06-06

申请号：US13352543

申请日：2012-01-18

申请人： Pao-Chi Chang ,  Kuo-Lun Huang ,  Tai-Ming Chang

发明人： Pao-Chi Chang ,  Kuo-Lun Huang ,  Tai-Ming Chang

IPC分类号： H04R5/00

CPC分类号： H04S5/005

摘要： The present invention provides an apparatus with sound source localization. Spatial information and original audios are synthesized by a mono signal analyzer/synthesizer of a multi-channel system to obtain a three-dimensional (3D) virtual reality sound effect. By extracting and synthesizing spatial parameters, only original audio objects and spatial location data are required to obtain an effect of multi-channel spatial audio. Thus, a multi-channel playback system is formed with a small bit stream in transference to obtain Doppler effect on simulating moving of audio objects in real life.

摘要翻译： 本发明提供一种具有声源定位的装置。 空间信息和原始音频由多声道系统的单声道信号分析器/合成器合成，以获得三维（3D）虚拟现实声音效果。 通过提取和合成空间参数，只需要原始音频对象和空间位置数据来获得多声道空间音频的效果。 因此，多通道播放系统在移动中形成小比特流以获得多普勒效应来模拟现实生活中的音频对象的移动。

公开(公告)号：US4097421A

公开(公告)日：1978-06-27

申请号：US458747

申请日：1974-04-08

申请人： Tai Ming Chang

发明人： Tai Ming Chang

IPC分类号： C08J9/04 ,  C08J9/00 ,  C08J9/34

CPC分类号： C08J9/34 ,  C08J9/0023 ,  C08J9/0085 ,  C08K5/09 ,  C08K7/04 ,  C08K7/12 ,  C08K7/14 ,  C08J2367/00 ,  C08J2367/02 ,  Y10S264/83

摘要： This invention relates to foamable, thermoplastic polyester molding compositions, to molded products suitable for structural applications and to a process for their manufacture. The resin compositions when foamed have a cellular interior and a skin having structural strength.

摘要翻译： 本发明涉及可发泡的热塑性聚酯模塑组合物，适用于结构应用的模制产品及其制造方法。 发泡时的树脂组合物具有细胞内部和具有结构强度的皮肤。

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。

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。