Senin, 28 Oktober 2013

Can you have two video cameras hooked up to one computer?

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Kels


Trying to do a film project.

We need 2 or more video cameras going into one computer an have them record at the at the same time?

What is need for this, any special type of stuff or software or hardware?
Also is the recording going to be decent quality?



Answer
Hi Kels:

Yes, depending on your camera types (what interface they use, e.g., USB, FireWire, analog) and what application(s) you plan to run to capture the two video streams. The quality will depend on the interface capability and how "good" your computer is (fast CPU, plenty of RAM, hard drive(s) speed, etc.).

I use two USB webcams simultaneously without problems, as long as I properly launch each app to each camera separately and with the correct settings for each (only one app can "talk" to one camera at a time). A capture program like Microsoft's AMCAP or Silverlight can launch separate windows at the same time, with each window selected for a specific webcam (there's a drop-down "Device" menu for that).

If you don't use an external hard drive (preferably FireWire or SATA) as the "target" drive for recording the video streams, you might get some dropouts or glitches, if your PC can't keep up. Some PCs with fast internal drive(s) will have no problems. If you plan to try HD video, you could run into problems on an underpowered computer.

For that, I'd recommend using FireWire capable camcorders or a dedicated PCI capture card designed for multiple video inputs (Osprey is one brand I've used) which is how remote security cam monitoring PCs work. The interface card does a lot of the video processing work and uses the motherboard bus to handle the high data speeds necessary.

If you have a Mac, most of the same factors apply, just the software names will be different.

As far as your film project goes, is there some reason the two (or more) cameras aren't camcorders recording to tape or SD card? If you don't understand how multicamera films & TV shows are put together & edited, you should read up a bit first.

Normally the cameras take care of all the recording work (and "slates" are used to mark the start point of each take, for matching later) and the computer is only used later to load all the shots where they can be easily run together and switched back & forth in editing software (simple programs are Windows Movie Maker & iMovie).

With "live" TV shows or webcasts, the cameras are run into an external video switcher, which selects which camera is "on the air" or recorded (your computer could be the recorder).

Wikipedia and YouTube have all sorts of detailed info on this topic.

hope this helps,
--Dennis C.
 

Best Mac app for taking screenshots and sharing to fb/twitter?




paintballm


I'm looking for a Mac app that will let me take screenshots and then be able to copy a direct link to the image or share it on a social network. I tried Skitch, but the app is way too buggy for me. Any suggestions?
Gavin, you don't read much, do you?



Answer
Try the Debut Video Capture Software!!! It records webcam, It captures screen (and records) It captures networked connected cameras (good for security work) It works with connected devices, scheldules for recording, previews recording, best quality, able to zoom in to where the mouse is, and be able to add pictures in the squares of your recording screen for effects, add captions, works for Windows seven and Mac Book. It has Filters. Screen editing, final saving, and CAN BE EDITED IN ANY VIDEO EDITER! ITS ALSO FREE!!!! NOT A DEMO! NOT SCREWING AROUND!

DOWNLOAD TIME: 5 to 10 Minutes (depending on internet speed)
I use this app ALL THE TIME! >U<
heres the download link: http://www.nchsoftware.com/capture/tutorial.html




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