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F.A.Q.
info on video equipment for mixing, correcting, capturing distored or non-sync analog composite video


Video Mixers:

There are allot video devices that call them self 'video mixers', which they ain't, they fade to black, switch sources and fade in again. In order to mix video the inputs need to be synchronized or genlocked. Consumer video mixer often do this by frame synchronization, or with an inside time base corrector. . A frame synchronizer is not a "stripped-down type of TBC." It synchronizes two separate video sources by electronically delaying one source until the second one begins a new field. It does not correct time base error. A frame synchronizer An easy-to-get and inexpensive video mixer will probably be a second hand Panasonic WJ AVE-5 or a new MFB serie.

Here's a list of cheap, second hand (out of production) video mixer that mix two non-synchronized video signals.

Video mixers:
Hama DVM-1000 [2 channel / frame sync]
Sima SFX-M [2 channel / frame sync] alias GBC DVM5
VideoTech VMX-400 [2 channel / tbc]
VideoTech VMX-410 [2 channel / tbc]
Panasonic WJ AVE-5 / alias DVM-2000 [2 channel / frame sync]

Panasonic WJ AVE-7 [3 channel / frame sync]

Panasonic WJ MX-10 / alias DVM-1000 [2 channel / frame sync]

Panasonic WJ MX-12 [2 channel / frame sync]


Other Video Mixers:
Panasonic WJ MX-12 / MX-20 [2 channel /frame sync]
Panasonic WJ MX-30 / MX-50 [4 channel / tbc]
Videonics MX-1 (Rowi MX-1) [4 channel /tbc]
Edirol LVS-400 [4 channel / frame sync]
Edirol V1 [4 channel]
Roland V-5 [4 channel /]
Edirol V4 [4 channel /tbc]
Vivanco VM-5000 (rare) [2 channel /tbc]






Time Base Correctors:

If you want show video distortion on a digital video medium like a LCD/DLP video projector or video capture device you often running into a 'no signal' message or blue screen. Because digital video media need to convert the analog signal into a digital one, and if the 'sync' signal is distorted the digitization can't be done. Composite video contains information that is invisible in the image but necessary for viewing devices; the composite sync. You can easily corrupt the composite sync with video circuit bending and will blue screen the projector . A tv with a tube or ctr devices don't need a tbc for showing image because this is a analog technique. An lcd/tft video projector / capture device will digitize the analog distorted video.

This is the moment where you have to use a Time Base Corrector that will correct the sync info in the video signal so it can be projected or captured on computer.

On ebay.com there's a large choice in professional 19" tbc's. All of them will do the trick of correcting sync info but you maybe want to check if there's a composite video input and output on it. Often these 19" devices are for broadcast aims that working with component or digital video.

My choice for a easy-to-use, portable tbc would be a TBC-1000 from Datavideo or a video mixer with inside tbc, like a panasonic ave/mx. A video mixer with inside tbc/frame sync will correct the image for digital media plus you can play with effects or mix different sources. And they are easy to get. A cheap video mixer with inside tbc on ebay auctions is probably a
Panaonic WJ AVE-3 or WJ AVE-5 or a Videonice MX-1. Have a search on ebay.com

There's also inexpensive new tbc's of LektroPack that produce cheap and multi-purpose gadgets. Like the
CCR9, a tbc - PAL/NTSC converter and enhancer!

Video mixers with build-in tbc's:
Panasonic WJ AVE-3 / WJ MX-5 / 7 10 / 12 /20 / 30 /..
Blaupunkt DVM-2000 / 5000 (MX-5 / MX-10)
Videonics MX-1
Edriol V4

Stand alone tbc's or sync correctors:
Lektropack CTB100 (Full TBC)
Lektropack CDM630 (PAL/NTSC converter with TBC)
Lektropack CCR9 (PAL-NTSC converter, removing errors)
Datavideo TBC-1000 (Full TBC, distribution amp)
Datavideo TBC-100 (PCI card, takes only 5 and 12 v from computer)
Electronic Design TBC-Enhancer






Capture Devices:

Capturing video onto your computer can be a bitch! I've lost allot of time messing around with drivers, bad hardware and unclear problems, maybe its me. Digitizing full quality composite video is still a expensive and complex technique. For Windows machines you have allot usb-mpeg2 capture gadgets, for mac there are less devices for capturing video. There two main difference in these devices. Most of the usb/mpeg version can only capture video with mpeg compression. For full frame (both fields) uncompressed composite video capturing you need more expensive and solid capture devices, like a Datavideo DAC-15, DFG 1394, Black Magics Decklink SP. Capturing component video (rgb, yuv, rgbhv, vga) a Datavideo DAC-15 or the Black Magic Decklink SP+ will do the job.

Capturing distorted video is even a bigger problem but fun! If you don't have a tbc in front of the capture device than glitching stuff will occur. If you like to search for some glitch like effects by running distorted or interfered video signals, most devices will stop sending out digital signals and freeze. My experience is that with the most cheap ass usb capture devices the glitching is very effective. Here's a nice site that explains more about capturing video the right way.

Some Mac/Windows capture devices:
DFG 1394
Canopus ADVC-100
Datavideo DAC-200
Datavideo DAC-10/15
Black Magic DeckLink SP












Video Mixers


Hama DVM-1000 (more info)
 


Videotech VMX-400 (more info vjcentral.com)

 
Videotech VMX-410 (more info)


Panasonic WJ AVE-3 (more info vjcentral.com)
AVE-7 (more info vjcentral.com)


Panasonic WJ AVE-5 (more info vjcentral.com)


Panasonic WJ MX-10 (info) / 12 (info) / 20 (AVE55 info vjcentral.com)


Blaupunkt DVM-2000 (more info vjcentral.com)


Blaupunkt DVM-1000 (more info vjcentral.com)


Videonics MX-1 [Rowi MX-1] (more info vjcentral.com)


Edirol V4 (more info vjcentral.com)


LVS-400 (more info)


Edirol V1 (more info)


Vivanco VM-5000 (more info)


Time Base Correctors


Datavideo TBC-1000


Datavideo TBC-100


LektroPack CCR-9 / CTB-100


Electronic Design TBC Enhancer