Interesting things I've bookmarked (old posts, page 58)

Wavosaur free audio editor

Wavosaur is a cool free sound editor, audio editor, wav editor software for editing, processing and recording sounds, wav and mp3 files. Wavosaur has all the features to edit audio (cut, copy, paste, etc.) produce music loops, analyze, record, batch convert.Wavosaur supports VST plugins, ASIO driver, multichannel wav files, real time effect processing.The program has no installer and doesn't write in the registry. Use it as a free mp3 editor, for mastering, sound design

12 Years on Mars

NASA's Mars rover, Opportunity just celebrated its 12th anniversary on Mars; a mission that was originally meant to last just 90 days. Although recently eclipsed in the news by its bigger brother Curiosity, Opportunity is still going strong and making valuable scientific discoveries. Launched into space in 2003, Opportunity bounced to a hole-in-one landing in a small crater on Mars' Meridiani Planum on January 25, 2004. It has since spent 4,270 Martian days, or sols, on the surface, slowly moving from target to target, exploring craters, meteorites, unusual rock formations, and finding evidence of past water activity. Over the past 144 months, Opportunity has taken more than 200,000 images, and driven a total of 26.50 miles (42.65 kilometers) across Mars; not bad for a mission designed to last only three months.

12 Years on Mars

Inside the Volkswagen emissions cheating

In an interesting presentation [video link] at the 32nd Chaos Communication Congress (32C3) held at the end of December, Daniel Lange and Felix Domke gave a detailed look into the Volkswagen emissions scandal-from the technical side. Lange gave an overview of the industry, the testing regime, and the regulatory side in the first half, while Domke presented the results of his reverse-engineering effort on the code in the engine electronic control unit (ECU), as well as tests he ran on his own affected VW car. The presentation and accompanying slides [PDF] provide far more detail than has previously been available. Lange is a former BMW engineer who now runs his own consulting company. Domke is an independent security researcher who became curious about how the code inside his car was gaming the emissions testing.

Berkeley AI Materials

The Pac-Man projects were developed for UC Berkeley's introductory artificial intelligence course, CS 188. They apply an array of AI techniques to playing Pac-Man. However, these projects don't focus on building AI for video games. Instead, they teach foundational AI concepts, such as informed state-space search, probabilistic inference, and reinforcement learning. These concepts underly real-world application areas such as natural language processing, computer vision, and robotics.We designed these projects with three goals in mind. The projects allow students to visualize the results of the techniques they implement. They also contain code examples and clear directions, but do not force students to wade through undue amounts of scaffolding. Finally, Pac-Man provides a challenging problem environment that demands creative solutions; real-world AI problems are challenging, and Pac-Man is too.

Berkeley AI Materials