2019年12月8日 · Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [1] It is a disorientation -, vertigo -, and nausea -inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves .

Flicker Vertigo So, For anyone who doesn’t know, I hold a Master’s degree in Occupational Safety Management; which goes well with my Bachelors in Technical Theater and 20 years working in the industry.One of my professors from the safety program reached out to me this morning, after attending Trans Siberian...

2014年6月20日 · I'm sure it's very subjective, as are most speaker installations, temporary or permament. Here's my two cents: 1) In some cases it gets them off the floor, opening up valuable floor space In a temporary install it might simplify the installation (e.g. two line array clusters w/subs vs separate subs), and in a permanent install it permanently leaves the floorspace open

2018年3月26日 · All about safety in the theatre.

2024年11月5日 · The flashing is extremely intermittent (could be 10 seconds apart, could be minutes, varies between the fixtures in an inconsistent pattern, though the first fixture in the daisy chain has never flickered), but even when I plugged one of the fixtures directly into the board's output (still needed to convery from 5 pin to cat 5) it would flicker ...

2004年6月15日 · Yes - I found that the voltage needed to be varied (within that 75-85% range) to get the tube to fire, flicker and then go out. I found the effect fairly easy to create and control in this manner. I apologise for not making this control requirement clearer in my earlier post, rather than stating the range.

2013年9月17日 · I'm having an issue with flickering LED fixtures. I get flickering and strobing on one type of fixture in particular (Elation ELED Fresnel 150) whenever I'm sending lots of DMX data to another fixture, like animating a mover or flashing RGB LEDs. I thought it was a termination issue so I added a...

2011年2月23日 · I'm running board and as an exercise, my LD told me to try and create a flicker effect for an earthquake. I've tried creating a linear effect off a tutorial I got on a different forum, utilizing a random rate and random grouping to an intensity perameter, but it's not going as fast as she wanted it to, even when I gave it a speed of .1.

2024年5月18日 · The DMXCat also has a flicker diagnostic built in where it will read the output and let you know if the received DMX values change. Wireshark as an IP tool isn't all that useful in this instance unless the 1624's DMX output is being read and input into a network protocol by a gateway or node which seems unlikely to be the case here.

2017年9月9日 · Using a flicker calculator on David Satz dot com it seems I would get a flicker of 0.01 of an F-stop. I am not sure that difference would be perceptible on camera but it seems like it could appear as a soft pulsing. Chauvet seems to use 600hz. Some older Elation fixtures measured at 300 hz but newer ones are probably hight