Ground loop can cause considerable currents to flow on all cables on the loop. It is not uncommon to have a voltage of 1V RMS between the earth connections of power outlets that are wired separately back to the switchboard. This small voltage, with a total resistance of perhaps 0.2-0.5 Ohm, will cause a loop →
Optical networking is transforming the broadcast studio. The continued transition to HDTV within the professional broadcast industry, the advent of 1080p50/60 production, D-Cinema production and higher resolution / bit depth formats, are all factors driving the widespread adoption and build out of 3G SDI capable broadcast infrastructure. Optical SDI Networks: Broadcasters Beware! 2010 NAB Show →
If you’re watching the World Cup or just seen few clips on the news, you’ve no doubt learned about the vuvuzela, a buzzing horn capable of drowning out TV announcers. There are are many people who want to to filter the vuvuzela buzz from your World Cup broadcasts. Anti Vuvuzela Filter marketed article tells that →
I have written a lot of on electret microphone connections on my Powering microphones document. Here are some additions to my documents on electret microphones I found at SANKEN Basis of Wiring Method web page. The first circuit diagram shows the traditional “2 wire” method of wiring an electret capsule. Practically all electrets I have →
Nokia‘s Executive Vice President Anssi Vanjoki just recently told that Cell Phone Cameras Will Replace DSLRs. Reuters put out news Nokia exec: phones to make system cameras obsolete which says that according to Nokia sales chief fast developing cameraphone technology will shortly make SLR system cameras and even professional cameras obsolete. It was even claimed →
A key factor in the web’s success is that its core technologies such as HTML, HTTP, TCP/IP, etc. are open and freely implementable. Though video is also now core to the web experience, there is unfortunately no open and free video format that is on par with the leading commercial choices. VP8, a high-quality video →
FCC lets movie industry selectively break your TV article says that the Federal Communications Commission decided that the movie industry can remotely disable analog video outputs on your home theater equipment to prevent you from recording certain programs. First-run movies would be to be directly sent to consumers over secure TV lines. This does not →
How to put a BNC on RG59 coaxial cable properly is a nice instructional video how to properly crimp a connector to coaxial cable. →
Production Manager Design of Eurovision 2010 Song Contest is keeping on on-line diary of the production. If you are interested in show technology and work behind big TV production, read Eurovision Diary 2010. Around one year ago I write about Eurovision 2009 diary, so if you have not read that article artier, it is now →
The fact that 3-D is a hot ticket in tech may not surprise you. The booming recent interest in 3-D video and film content are driving this. Avatar and other 3-D movies have capture the attention. The speed 3-D is headed soon to consumers’ homes may surprise. Cinema owners might not like this development, because →