Partial workaround for video monitoring delay on Epic

[Scott Auerbach]

I've been having dreadful issues with delayed video (and audio) monitoring on the Epic... Audio (via both the brain's headphone jack and the 5-pin output on the Pro I/O) is delayed slightly, rather than being a true E-E signal. And the SDI output was SERIOUSLY delayed. To the point where clients complained. Loudly. Or just plain refused to watch the monitor unless we had a delayed Comtek feed. I'd searched the forum, but never found this bit of information:


Well, it turns out that there's a partial solution, though I had to find out from my monitor manufacturer's tech support rather than RED. (Groan...)

Apparently the delay in the Epic's SDI feed is a fixed number of frames. So increasing the Epic's refresh rate (Settings > Audio/Video > Monitor > Frequency) to 59.94 Hz reduces the delay in your 1080 output, versus having the refresh frequency set to 23.98 or 29.97 (or, in many cases, Auto).

The monitor is still delayed, but it's kinda-sorta-almost acceptable. Without forcing the refresh frequency to 59.94, the image is wildly out of sync.

For those of you using the superb Flanders Scientific monitors (who have my undying support), switching their monitor to Fast Processing mode will minimize any delay introduced by the monitor itself.

 

[Jason Comparetto]

Thanks for the tip Scott!!

 

[Marc Wielage]

A delayed Comtek feed is a very inexpensive and simple solution. Some audio recorders (the Sound Devices 788 being a good example) let you dial in up to 9 frames of delay for certain feeds, which makes this fast and very easy to do.