公开(公告)号：US20060177078A1

公开(公告)日：2006-08-10

申请号：US11347695

申请日：2006-02-03

申请人： Pinaki Chanda ,  Sung Park ,  Gi Park

发明人： Pinaki Chanda ,  Sung Park ,  Gi Park

IPC分类号： H04R5/02 ,  H04R5/00

CPC分类号： H04S1/005 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/03

摘要： An apparatus for implementing a 3-dimensional virtual sound and method thereof are disclosed, in which computational and storage complexity are reduced, in which system stability is secured, and by which the 3-dimensional virtual sound can be implemented in such a mobile platform failing to be equipped with expensive instruments for the implementation of the 3-dimensional sound as a mobile communication terminal and the like. The present invention includes a first step of giving an inter-aural time delay (ITD) to at least one input sound signal, a second step of multiplying output signals of the first step by principal component weight, and a third step of filtering result values of the second step by a plurality of low-order approximated IIR filter models of basis vectors extracted from a head related transfer function (HRTF). The basis vectors, extracted from the head related transfer function database are approximated using balanced model approximation technique.

摘要翻译： 公开了一种用于实现三维虚拟声音的装置及其方法，其中降低了计算和存储复杂性，其中确保了系统稳定性，并且可以在这样的移动平台中实现三维虚拟声音失败 配备用于实施作为移动通信终端等的3维声音的昂贵的仪器。 本发明包括对至少一个输入声音信号进行听觉间延迟（ITD）的第一步骤，将第一步骤的输出信号乘以主要分量权重的第二步骤和滤波结果值的第三步骤 通过从头部相关传递函数（HRTF）提取的多个基本向量的低阶近似IIR滤波器模型进行第二步骤。 从头相关传递函数数据库中提取的基向量使用平衡模型近似技术近似。