Audio and Video

I saw thus funny audio system noise troubleshooting video at Facebook. It was originally posted to YouTube under name Where does that noise come from? →

After the mid 90s boom in popularity glitch has become a critical part of contemporary popular esthetics. How to make Analog Video Glitches | Circuit Bending video discusses how to make unique analog “glitch” textures for your next video: Karl Klomp‘s Dirty Video Mixer is one of the best known and wide used simple circuits →

I have had several situations where everything is hum free, but when I disconnect or power down the signal source (smart phone, computer etc..) I start hearing annoying humming noise. The noise goes away when the signal source is plugged in and powered. Latest example was some cheap multimedia speakers connected to USB sound card. →

Traditionally analogue video transmission is done using 75 ohm coaxial cables. Those video signals are not directly compatible with nowadays more widely used twisted pair wiring (CAT5, CAT6 etc..), which means you just can’t wire the signals directly form video output to a twisted pair wire. The main problems in connecting 75 ohms video source →

Almost a year ago I wrote that USB cameras connected to Android 10 device do not work. This issue stopped me from using my USB endoscope. I tried different applications and nothing seemed to help. The Android version was updated to 11, but the problem seemed to stay. Not the problem has been solved. I →

I have written about running audio signals over CAT 5/6/7 wires normally designed to carry Ethernet traffic. But is is possible to run Ethernet over audio cabling terminated with XLR connectors? Gearspace discussion at topic “Ethernet over XLR – Can I do this ???” had following question: We recently moved into an old recording studio →

This is an old recipe for a disaster from 1990′s. This converts NEMA mains connector to 1/4″ plug. Offers a nice set of possibilities for unexpected show disasters like electrocution or over kilowatt of constant 60 Hz bass line without an amplifier. It seems that some company really tried yo push this potentially extremely dangerous →

Year 1999 A friend called from a big computer festival Assembly 1999 that was starting. It was one of the biggest this type of event in Europe with thousands of people coming with computers. Some of my friends was running big screen and video streaming for the event. They had all the stuff rented and →

I saw presentation of Sound Tools XLR Sniffer/Sender at https://www.ratsoundsales.com/mm5/merchant.mvc?Screen=PROD&Product_Code=soundtools-xlr-snifsend It was described: “Quickly troubleshoot faulty mic lines and cables with this set of remote end cable testers. The XLR Sniffers can also utilize phantom power to test snake lines and cables in live environments, making it simple to diagnose issues and get your show →

An audio multicore cable (often colloquially referred to as a multicore, snake cable or snake) is a thick cable which usually contains 4–64 individual audio cables inside a common, sturdy outer jacket. Audio multicore cables are used to convey many audio signals between two locations, such as in audio recording, sound reinforcement, PA systems and →