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We present an interactive wave-based sound propagation system that generates accurate, realistic sound in virtual environments for dynamic (moving) sources and listeners. We propose a novel algorithm to accurately solve the wave equation for dynamic sources and listeners using a combination of precomputation techniques and GPU-based runtime evaluation. Our system can handle large environments typically...
Realistic sound effects are extremely important in VR to improve the sense of presence and immersion. They augment the visual sense of the user and can help reduce simulation fatigue. Sound can provide 3D spatial cues outside eld of view and help create high-fidelity VR training simulations. Current sound propagation techniques are based on heuristic approaches or simple line-of-sight based geometric...
We present a new Bi-level LSH algorithm to perform approximate $k$-nearest neighbor search in high dimensional spaces. Our formulation is based on a two-level scheme. In the first level, we use a RP-tree that divides the dataset into sub-groups with bounded aspect ratios and is used to distinguish well-separated clusters. During the second level, we compute a single LSH hash table for each sub-group...
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