Monthly Archives: February 2012

Arduino realtime audio processing

This is an experiment to show how some realtime audio processing can be done with the Arduino. The first set of examples alter an incoming audio signal and put it back to an audio output. We achieve effects like Reverb, … Continue reading

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Banksy on advertising

Any advert in a public space that gives you no choice whether you see it or not is yours. It’s yours to take, re-arrange and re-use. You can do whatever you like with it. Asking for permission is like asking … Continue reading

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Earth’s clouds are getting lower, NASA satellite finds

A consistent reduction in cloud height would allow Earth to cool to space more efficiently, reducing the surface temperature of the planet and potentially slowing the effects of global warming. This may represent a “negative feedback” mechanism — a change … Continue reading

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Simple Transistor Amplifier Circuit Schematic and Explanation

One thing I’ve noticed about electronics is the lack of simple, newbie-friendly information on the internet about specific topics. Then again, maybe I just wasn’t looking properly. To help fill this possibly existent information gap, I’m going to post a … Continue reading

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Dilbert today

via dilbert.com

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Carnaval de New Orleans no Brasil

No Cimples Ócio, em Curitiba. Som de primeira!

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A Bayesian Approach To Kalman Filtering

There are both linear and non-linear forms of the Kalman filter, with the non-linear forms being the Extended Kalman Filter (EKF), the invariant Extended Kalman Filter, and the Unscented Kalman Filter (UKF). The non-linear versions of this algorithm represent the current “gold standard” … Continue reading

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