Live-To-Tape Multicam for consumers? at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.


Reply
 
Thread Tools Search this Thread
Old June 15th, 2009, 09:22 AM   #1
Major Player
 
Join Date: Dec 2006
Location: Austin, TX
Posts: 773
Live-To-Tape Multicam for consumers?

My friend, Lorraine, has a public access show that she's been producing live in the public access studio - no room for an in-person audience. However, what she wants to do is move to a new location (not a TV studio yet) that has room for a live audience and move from a call-in live show to a live-to-tape show.

She could do it with a single-cam setup pretty easily, of course - connect the firewire to a computer and record from there.

But what I'm wondering is if there's a way to do a multi-camera setup, where we can switch views live-to-tape, either by connecting two firewire cables to a single computer and getting some sort of multi-cam software, or by getting an inexpensive mixer that takes HDMI (or possibly RCA).

I believe she's got a HV20 as the primary cam; I can bring in an HG20 and possibly an HG10. The question is mixing them all together.

-------

Edit: The show is broadcast in SD - it's just that the HD cameras are what we have lying around. One possible solution is to build a media computer with multiple firewire inputs, and use that as the mixer? Or if we wanted to go the HDMI route, two blackmagic intensity pro cards? (Four HDMI inputs)

-------

Edit #2: Might it be concievably possible to use a HDMI consumer-TV switcher - you know, like the kind you use to switch between your Blu-ray player and your Xbox - as the mixer? You'd lose the preview - which is an important part... but... would it work?
__________________
Equip: Panny GH1, Canon HG20, Juicedlink, AT897, Sennh. EW/GW100, Zoom H2, Vegas 8.1
Brian Boyko is offline   Reply With Quote
Old June 15th, 2009, 10:19 AM   #2
Inner Circle
 
Join Date: Sep 2002
Location: Vancouver, British Columbia (formerly Winnipeg, Manitoba) Canada
Posts: 4,087
Quote:
Originally Posted by Brian Boyko View Post
Edit #2: Might it be concievably possible to use a HDMI consumer-TV switcher - you know, like the kind you use to switch between your Blu-ray player and your Xbox - as the mixer? You'd lose the preview - which is an important part... but... would it work?
Not sure about HDMI switching but analog "bang boxes" don't work because they don't "time" the signals (which are not Genlocked) to each other, therefore creating "tear". I would ASSUME that HDMI "switchers" would exhibit similar issues with the video stream.
__________________
Shaun C. Roemich Road Dog Media - Vancouver, BC - Videographer - Webcaster
www.roaddogmedia.ca Blog: http://roaddogmedia.wordpress.com/
Shaun Roemich is offline   Reply With Quote
Old June 15th, 2009, 11:53 AM   #3
Inner Circle
 
Join Date: Jan 2007
Location: Woodinville, WA USA
Posts: 3,464
Here's another similar discussion. Both of the mixers mentioned in the thread are about $10K. May not be what you want.

http://www.dvinfo.net/conf/open-dv-d...hers-work.html
Adam Gold is offline   Reply With Quote
Old June 15th, 2009, 12:23 PM   #4
Major Player
 
Join Date: Dec 2006
Location: Austin, TX
Posts: 773
Hmm...

More I think about it - the more it might be easier to just record and do the multicam in post, there was one thing she really wanted, which was that part of the show is done in chromakey...

Hmm...

What we could do is set up the HV20 as the wide shot, and the HG10 and HG20 later. Then we just use Vegas's multi-cam edit to edit them together.

We then hook that up via FireWire to a laptop... and we can use a computer monitor to show the result of the video to the studio audience and to the staff. That one section of the show will be one-camera only.

Now all we need is Windows software that will both do live chromakey and record...

It'd take a while to cut together in post and render out, but - and this is a huge but - it can be done.
__________________
Equip: Panny GH1, Canon HG20, Juicedlink, AT897, Sennh. EW/GW100, Zoom H2, Vegas 8.1
Brian Boyko is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 08:27 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network