Audio and Video

http://spectrum.ieee.org/automaton/robotics/robotics-hardware/dynamic-vision-sensors-enable-high-speed-maneuvers-with-robots Posted from WordPress for Android →

Hackaday featured today LPT DAC circuit. Back in the olden days, around 25 years ago, sound cards were rare on PCs. One hack those days was the original Covox Speech Thing, that connected a simple DAC to to PC parallel port. The Covox Speech Thing (also known as Covox plug) was an external audio device →

http://pda.sciencealert.com.au/news/20142609-26244.html Posted from WordPress for Android →

Android devices can be used as signal generators and signal analyzers. It is easy when all you want is to get the signal out of the speaker or headphone connector, and you are happy to analyze what internal microphone in the device receives. But what if you want to feed some external signal into your →

Sound pressure level (SPL) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level (20 µPa, which is usually considered the threshold of human hearing at 1 kHz). I have earlier used several different decibel →

There has been lately some interesting science new and product articles on special camera technologies: World’s Fastest Camera Takes 4.4 TRILLION Frames Per Second: Researchers in Japan have developed a motion picture camera that can take 4.4 trillion frames per second. The work was published in Nature Photonics. They call their technique “sequentially timed all-optical →

Is virtual reality hot or not? At this time it seems to be very hot again. In the wake of Facebook’s purchase of Oculus VR, can this revolutionary technology triumph anew? The Rise and Fall and Rise of Virtual Reality article is a good (long and detailed) overview of what virtual reality has been and →

http://techcrunch.com/2014/08/21/majority-of-digital-media-consumption-now-takes-place-in-mobile-apps/?ncid=twittersocialshare Posted from WordPress for Android →

LightBoost HOWTO | Blur Busters (http://www.blurbusters.com/zero-motion-blur/lightboost/) is an interesting article on technologies used to avoid motion blur on LCD monitors. LightBoost is a programmable strobe backlight. The backlight is turned off while waiting for LCD to finish pixel transitions (unseen by human eyes), and the backlight is strobed only on fully-refreshed LCD frames (seen by human →

http://spectrum.ieee.org/tech-talk/consumer-electronics/audiovideo/your-candy-wrappers-are-listening This really pushes what can be done with video camera. Posted from WordPress for Android →