Audio and Video

Now there are two attack vectors to send commands to voice assistant from distance without anyone in the room hearing: ultrasounds and laser. Audio Hotspot Attack Crosses the Ultrasonic Beams to Send Silent Commands to Voice Assistants https://www.hackster.io/news/audio-hotspot-attack-crosses-the-ultrasonic-beams-to-send-silent-commands-to-voice-assistants-6d386644111b Lasers Can Take Over Voice Assistant Systems From Long Distances, Research Finds https://securitytoday.com/articles/2019/11/06/laser-hack-alexa-voice-assistants.aspx?m=1 https://news.umich.edu/a-laser-pointer-could-hack-your-voice-controlled-virtual-assistant/ From a distance →

Developer Ben Cox sets out to get old VGA capture cards working on a modern Linux build. Interesting read for people interested in Linux, USB and video technology. Hackster.io reports: Ben Cox Revives Epiphan’s VGA Capture Cards with Custom Reverse-Engineered Linux Driver https://www.hackster.io/news/ben-cox-revives-epiphan-s-vga-capture-cards-with-custom-reverse-engineered-linux-driver-4fb8de896605 Having picked up a bulk supply of VGA capture cards for pennies →

Some time ago I saw  The ultimate VGA to SCART adapter project at Hackaday with description: Accurate recreation of vintage arcades is becoming increasingly difficult. CRT monitors are rare nowadays and, even if you find one, it will probably not support the 15.7Khz horizontal frequency used by many old arcades. A good alternative is a →

The modular synthesizer is a type of synthesizer consisting of separate specialized modules. The modules are typically connected together with patch cords in different ways as needed to generate needed tones. Typical modules are oscillators (operate on frequency), filters (spectrum), amplifiers/gates (amplitude) and Envelope generators (dynamic control). The earliest commercial modular synthesizers were developed, in →

I got a very cheap wired/wireless mic  from Wish.com. I plan was to have a cheap “disposable” microphone for uses where I don’t want risking the more expensive microphone. Basically the product looks OK. The construction is plastic, but till feels acceptable for the price (less than 10 Euros on sale). If I get this →

This is how you remake a Hollywood blockbuster with zero budget (or almost). Studio 188 is a group of people that are creating low cost movie trailers. They say they have have is imagination. They have made several quite funny versions of well known movie trailers and posted the results to YouTube to https://www.youtube.com/channel/UCX3q2gub8M8NVVu4bCNIQ2g   →

Today there are festivals in more parts of the world than ever before–and ticket prices are higher than ever before. Why are music festivals so expensive? The reason is that big stars maximise their take from tours. Besides getting the start to the festival, there is lots of technology on those festivals and many safety →

I have had for a long time an AKG D60 S microphone. The AKG D60S is advertised as an unidirectional semiprofessional dynamic microphone with smooth frequency response, a rugged all-metal body, an on/off switch, and removable wire-mesh grill.  It was proven to be a decent semiprofessional all-round microphone with hypercardioid polar pattern. Hypercardioid microphones are →

https://www.boredpanda.com/photography-reality-behind-the-scenes-calob-castellon/ We are mesmerized by the beauty and quality of some Instagram photographs. And it often leaves us wondering if all these people have personal professional photographers and a free pass to a fancy studio. It appears that is not always the case… This article probes that quite unexpected everyday places can create an out-of-this-world →

https://www.theguardian.com/artanddesign/gallery/2017/may/16/jason-shulman-films-condensed-into-a-single-photo-frame-in-pictures Jason Shulman photographs entire movies with ultra-long exposures, creating impressionist photo masterpieces in the process. →