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Multi-angle recording?

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Old Aug 22, 2003 | 06:16 PM
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Default Multi-angle recording?

How do I do this if I have two cameras, one facing forward, one facing rear? That would be heezy. What kind of recording device is this called? MiniDV type of media preferred, but Digital8 is okay too. VCR etc is too big

thanks

-d
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Old Aug 22, 2003 | 09:04 PM
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If you have two video cameras then you just record both to the internal media, then edit the footage together.

Mabey I don't understand your question.
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Old Aug 22, 2003 | 09:07 PM
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two simultaenous a/v streams to one tape. is that possible?
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Old Aug 22, 2003 | 09:16 PM
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OIC, not real video recorders.

Not that I am aware of. The 'cheap' way to do that would be with a simple switch. You would wire both cameras to the switch, then wire the switch to whatever you want to use to record (camcorder input, VCR) then you could manually reach over and change the view by selecting the source camera.

Otherwise you are looking at two devices, like two VCRs. Better bet is two full-blown camcorders.
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Old Aug 22, 2003 | 09:18 PM
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yeah, wondering how they do it when filming like option videos and stuff, how they switch back and forth. I'm sure they don't switch back and forth using a switch, i'm sure they edit it somehow. not sure how they sync it up tho..

what about those closed circuit security camera type of deals how do those work?
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Old Aug 22, 2003 | 09:25 PM
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CCTV security camera usually switch from one to the other. Or they use something that puts each of 4 feeds into a quadrant of a screen then record all four at once.

Professional videos will either record with multiple cameras and or do multiple takes (moving the camera between takes.) Then they use editing equipment to compile the video. For most people their best bet would be to get the video down to their PC and then get some editing software to splice together.
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Old Aug 23, 2003 | 04:36 AM
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Two options...

1) Use a device that automatically meshes the two video feeds into one stream and saves THAT to disk. This can be an expensive option since you can no longer use the recording capability of either camera...you need two cameras and either a recorder with the above mentioned option, or two cameras with a separate video combiner and separate recorder.

2) Use cameras that record a time base to each tape (but again, you'll need a stable time base, most likely from a different piece of equipment, and cameras that can accept outside timebases...hefty equipment prices). With a stable common timebase you can edit together down the road with some NLE software.
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Old Aug 23, 2003 | 06:02 PM
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I'm adding mobile video to my S2K tonight as we speak... anyways I was thinking of adding some cameras as well in a few locations. Anyway heres the plan I had...

What you'll need:

*Camera(s) (radio shack has tiny tiny pen sized cameras for $30)
*Mobile VCR
*TV's if you wanna see the footage in real time
*Multi Audio/Video Selector switchbox (home type typically used for entertainment centers)
-------------------------
Have the cameras connected to the A/V swicth box (most boxes have atleast 6 inputs, good if you plan 6 different views), which will be connected to the VCR. Pop in a tape. Record. Change views by selecting a different source or "angle" as each camera will have its on input. I'm pretty certain this would work out just as a imagine it. Anyway Good luck.

EDIT You could always use a laptop to make it digital or if your Camcorder has Video IN
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Old Aug 23, 2003 | 08:39 PM
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I don't think he's going to be able to swap views during the middle of an autocross...your hands are either on the wheel, the shifter, or on your ass as you spin out.

Also, the swap between each camera is going to make for a nasty few frames as the scan crystal of one camera won't be in sync with the other.
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Old Aug 24, 2003 | 08:50 AM
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Here's an example of editing together from two DV camcorders:

http://homepage.mac.com/tedpeters/.Movies/.../PIRChicane.mov

In this case I used picture-in-picture to combine the footage from my in-car and the car following me. I just synced them manually on the frame whre I pass under the shadow of the pedestrian overpass. DV camcorders seem to be accurate enough to not loose more than a frame or two over a couple of minutes.

Ted
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