Title:
三次元立体音響生成方法、三次元立体音響生成装置及び移動端末機
Document Type and Number:
Japanese Patent JP4681464
Kind Code:
B2
Abstract:
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.
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Inventors:
Pinaki Shankar Chandler
Park Yusuke
Park Jinlin
Park Yusuke
Park Jinlin
Application Number:
JP2006028928A
Publication Date:
May 11, 2011
Filing Date:
February 06, 2006
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
H04S5/02; H04R5/027; H04S7/00
Domestic Patent References:
| JP9284899A | ||||
| JP6165299A | ||||
| JP2002135899A | ||||
| JP2001517050A | ||||
| JP2000023299A | ||||
| JP2003304600A | ||||
| JP2004201194A |
Attorney, Agent or Firm:
Tomijio Sasashima