M.-H. Park, D.-G. Jee, H.-J. Kim, B.-S. Yoon, and S.-I. Choi (Korea)
Multimedia communication, 3D sound,Virtual Sound, DSP implementation
Many researches have been developed in the field of
virtual surround sound processing algorithm and
gradually applied to multimedia device providing game,
multi-media content, and virtual reality. To achieve
virtual surround sound effect, many applications adopt
head-related transfer functions (HRTFs), well known for
excellent sound localization effect.
This paper describes a real-time implementation of 3D
sound system with the use of embedded DSP. We develop
a headphone-based 3D sound algorithm by applying
source localization method using HRTF. The real-time
implementation is achieved using TI C67xx DSP chip.
We describe hardware designs. As a result of a DSP
implementation and a subjective listening test, this 3D
sound system can be applied to mobile application.