4 HDMI sources MBP??

Jacob1970

Yes this is of course the "safest" option. But the point is to program Isadora to switch automatically since I perform as a musician simultaneously.

crystalhorizon

Interested also in such a solution

Michel

@Jacob1970 @feinsinn

How about this 4x4 HDMI Matrix Switcher from Monoprice, you can control it via RS232, that means Isadora can control it as well. I have never used this device, just googled it.

Best Michel

Jacob1970

Nice find, Michel, but then I'm not able to do crossfade between the sources I guess?

Michel

@Jacob1970

No you cannot. Or you try to finde two 2x2 Matrix switches that can be controlled via RS232 and then you can at least crossfade in a limited way.

Best Michel

ioio

Perhaps you can cheat, do a freeze at source1, switch to source2 and do a crossfade.between the freezed image and source2. Its not really elegant, but it works.

crystalhorizon

Great find, thanx!

Fred

Here is a few more options-

https://www.blackmagicdesign.com/products/smartvideohub

The clean switch option will let you fade between sources and will re-sync each input (without this resync - using the above rs232 switcher, you will get a black period, flashes (could be seconds long) and a delay as the capture box resynchronises to the next input- it is the same as pulling the cable out and plugging in another one, this will be ugly and no amount of freeze and switch will get you out of it. The Clean switch 12X12 does a lot more than you need but will do it. You can also look at the ATEM models but they are less flexible with input resolutions (of course with all these solutions you will have to have exactly the same resolution and frame rate on each camera). They do however have some pretty advanced features and the cheapest is also 1500 like the above clean switch. These are SDI but you can pick up convertors from ebay hdmi to sdi for about 40 bucks

http://www.ebay.com/itm/MINI-3G-HDMI-to-SDI-Converter-Adapter-BNC-SDI-HD-SDI-3G-SDI-2-970-Gbit-s-Black-/321767278518

and this will make your cables better cheaper and more flexible and able to do longer runs. I would definitely invest- long hdmi are a pain in the ass and not reliable for stage- also not repairable.

You can also look for an HDMI or SDI quad splitter, it will cost around 1K and give you 1/4 HD resolution but you can get all cameras at once, like this http://www.bhphotovideo.com/c/product/1091833-REG/decimator_dd_md_quad_multi_defnition_quad_3g_hd_sd_sdi_quad.html

Expecting a switcher with no re-sync capability on the inputs to give you a smooth ride is not reasonable, but if you are ok with a second or two of black between cameras then the hard switch rs232 that michel mentioned is OK.

Michel

@Fred

What you say is all true, but if you are working with two switches you can crossfade between them and make the switch of the switcher that is not live.

Best Michel

jhoepffner

Another solution, with crossfade and the possibility to command it from Isadora (is Blackmagic Atem, with 4 HDMI input and crossfade.

osc to ATEM here

http://buechele.cc/blog/2013/2/5/atemosc-a-osc-bridge-to-control-atem-switchers

Jacques

Marci

Add 2x USB3 BlackMagic Ultrastudios?