Slashdot Mirror

CowboyRobot writes "Two researchers at San Francisco State University has successfully implemented hardware acceleration for realtime audio using graphics processing units (GPUs). 'Suppose you are simulating a metallic plate to generate gong or cymbal-like sounds. By changing the surface area for the same object, you can generate sound corresponding to cymbals or gongs of different sizes. Using the same model, you may also vary the way in which you excite the metallic plate — to generate sounds that result from hitting the plate with a soft mallet, a hard drumstick, or from bowing. By changing these parameters, you may even simulate nonexistent materials or physically impossible geometries or excitation methods. There are various approaches to physical modeling sound synthesis. One such approach, studied extensively by Stefan Bilbao, uses the finite difference approximation to simulate the vibrations of plates and membranes. The finite difference simulation produces realistic and dynamic sounds (examples can be found here). Realtime finite difference-based simulations of large models are typically too computationally-intensive to run on CPUs. In our work, we have implemented finite difference simulations in realtime on GPUs.'"

ROBOEXOTICA, the annual cocktailrobotics festival (to be held dec. 5th-9th in Museumsquartier Vienna) features the 8th Annual Cocktail Robot Awards (ACRA). Trophies are awarded in five categories, among them mixing and serving cocktails as well as lighting cigarettes and cocktail conversation. Entries welcome! Among the winners of 2005 was David Calkins, president of the Robotics Society of America and founder of Robogames. There is also a related post on SHIFZ-Blog.

helioquake writes "A collaboration of astronomers discovers possible a 'Rossetta Stone' of planetary formation study, reported by San Francisco State Univerity and Subaru Observatory. This new planet, orbiting around G-star like our Sun (HD 149026), weighs roughly equal to that of Saturn, while its size is significantly smaller in diameter. Planetary modeling suggests that the core of the planet alone must have 70 times more mass than Earth, indicating the possible existence of a metallic solid core inside the planet. Just like the rocky planet discovered earlier, the finding of this dense-core planet may lead to better understading of the formation of rockey planets in the Universe."

David Kennerly writes "The Entertainment versus Art debate flares perennially. These participants may be having fun, but the dichotomy is uniquely inappropriate to games. By the end of this article, we may disentangle the faulty dichotomy. After reconsidering what we think we know about a game, fun, and art we may come to discover that Nomura and Costikyan are correct: 'If you were to write a Seven Lively Arts for the 21st century, the form you'd have to mention first is clearly games.' --Greg Costikyan"

Odie writes: "Since the first discovery of a planet around another star in 1995, some 60+ planetary systems have been discovered. That's about one every two month, most of them uninhabitable Jupiter-sized heavyweights. Not much statistics to put in the Drake equation. Recently though, the OGLE team has come up with more than 42 new candidates. Nice in itself, but what is spectacular is that they spent only 32 days finding them! At that rate COROT should soon find plenty of worlds to explore for you budding Starfleet sailors! "