Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.07a
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- Pages.253-256
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- 2000
Low Power DSP Implementation of 3D Sound Localization
- Sakamoto, Noriaki (Dept. Information Systems Engineering, Osaka University) ;
- Kobayashi, Wataru (Amis Soung Technologies, Co.Ltd) ;
- Onoye, Takao (Dept. Communications & Computer Engineering, Kyoto Umiversity) ;
- Shirakawa, Isao (Dept. Information Systems Engineering, Osaka University)
- Published : 2000.07.01
Abstract
This paper describes a DSP implementation of a real-time 3D sound localization algorithm with the use of a low power embedded DSP. A distinctive feature of this implementation is that the audible frequency band is divided into three, in accordance with the sound reflection and diffraction phenomena through different media from a certain sound source to human ears, and then in each subband a specific implementation procedure of the 3D sound localization is devised so as to operate real-time at a low frequency of 50MHz on a 16bit fixed-point DSP. Thus out DSP implementation can provide a listener with 3D sound effects through a headphone at low cost and low power consumption.
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