Blend switcher / Live video delay concern?

[Jim]

Hi Watchout Friends, 

 

I've seen many posts & advise that Watchout being used together with any live blend switchers like Encore / Spyder / Ascender for most corporate events in order to create multi display blend & PIP features. 

I'm totally agree that is how video system to be designed in the way to suits live corporate events. However, not all shows are budget enough to have pay for these premium live blend scaler switcher.

 

I"m wondering Is there anyway using Watchout system as the last signal chain & let WO to handle PIPs by using capture card to capture PPT sources from scaler switcher & capture Live video (IMAG) from Vision mixer instead of Encore / Spyder / Ascender?

 

Currently, the issue bordering us is the Live video delay. So we plan the signal path as like this - video camera -> Vision Mixer -> WO server (capture card - Datapath / Decklink DUO) -> Lightwave Matrix router (server A-main, server B-backup) -> Display Proj. 

As i read the forum in the previous post, 720p60 is the recommended setting to suits progressive nature of the server for any live input capture. How obvious the video delay if we follow 720p60 setting? Any other recommendation to minimize the video delay?

 

Jim

 

 

 

 

 

[Mike Fahl]

Delay in WATCHOUT itself at 720p60 is approximately 4 frames. You then need to add any delay contributed by the other pieces in the chain.

 

Mike

[Bluetonesblue]

We did a show a couple weeks ago with WO doing all needed for the event. We used DAC-70 scalers to convert to SDI, then ran the signals thru an AJA SDI router, then into a BM dual input card. If we needed to go to a 3rd or 4th signal, then we switched at the router. Video playback was just run as an Aux timeline. Worked great, and the client was happy!