William Fitzpatrick and Sudhanshu K. Semwal
3D Sound Generation, HRTF Functions
Real-time 3D sound generation provides an opportunity to create directional sounds in game applications. In addition, they could also be useful for headset based mobile applications for the blind and visually impaired (B/VI) community providing us our primary motivation. This paper describes an implementation towards real-time 3D sound generation. HRTF functions are used to create a 3D experience using headsets. Existing HRTF database is used to composite 3D sound in real-time using TI’s DSP hardware implementing the Finite Impulse Response (FIR) filters. Ear location is estimated using existing facial tracking system. Algorithms implementing parallax correction are explained and future research directions are identified.
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