Frame sync TBC test.

[Gary34]

I’m just wondering what you guy’s think of this. https://www.reddit.com/r/VIDEOENGINEERING/s/AEOM2ZRWX1

[lordsmurf]

"Free software for testing" is already nonsense. Software = zero use. TBC is for hard(ware) analog errors.

AI slop. At least he admits it.

But there is something interesting here...

We still do not have content-aware software TBC. Hmmm... possibilities...

[dellsam34]

How do you suppose to check a TBC before purchase? The seller is going to send it to you for free test it with the software and then pay if it passes the "TBT" test? This is just a money grab.

[pandy]

"Free software for testing" is already nonsense. Software = zero use. TBC is for hard(ware) analog errors.

If you can capture RAW video signal then you can do TBC purely in software - it doesn't need to be real time if you can process RAW video offline.

After checking github this looks to me like NTSC signal generator with injected common VR issues and it is tailored to TEST real TBC .

[lordsmurf]

u can capture RAW video signal then you can do TBC purely in software - .

No, I refer to already-captured footage.

And the whole "raw signal" is nonsense. Nothing is raw, it's all modulated, reliant on hardware (decks).

[pandy]

u can capture RAW video signal then you can do TBC purely in software - .

No, I refer to already-captured footage.

And i refer to TBC principle - you can implement TBC in software and there is no sense to apply TBC to already captured footage as it is already affected by signal distortions - TBC works only if it precede video capture.

And the whole "raw signal" is nonsense. Nothing is raw, it's all modulated, reliant on hardware (decks).

You see video signal only as active video part, for me video (RAW) signal is also parts normally invisible to person working with active video - VBI areas as particularly those VBI signals are important for proper work of TBC - from your perspective chrominance subcarrier is nonsense and from mine it is important timing reference (as it is well defined in time, level and frequency so capture device is able to properly acquire and decode video signal)...

[lordsmurf]

VBI signals are important

Yeah, great. Most captures don't have that.

For decades now, "software TBC" has referred to as something that applies to after-the-fact (already captured) footage.
It's a unicorn.