Pioneer Laserdisc intro and car footage take 3 (software decoded!)
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- Опубліковано 20 сер 2024
- I've been doing more work on and off on my Laserdisc decoding project. I just implemented dropout detection and noise reduction, increasing quality quite a bit.
This is an early Pioneer Japan disk with dropouts and speckles, and therefore there are still glitches when those show up in the sync areas.
Source code at github.com/hap..., updated irregularly as I work on it..
This is amazing work -just so I better understand the project, you have a device which can output the raw rf being picked up by the laser? Could this perhaps be reverse engineered to create some sort of program which could ENCODE a signal to be burned? Burning would probably be the difficult part due to burner hardware but there may be some model out there with logic that can be overridden and can be instructed to burn a pattern corresponding to the encoded signal
Thanks!
I'll have to write up a blog entry (probably on G+) about it - I took the cxadc driver hack and hacked it to work with current Linux kernels in 64-bit mode. I tap the RF test point on the player, run it through a VGA amplifier (which needs to handle far higher frequencies) and from there into the Hauppage card.
It would be theoretically possible to make a CDV-R, but Pioneer's patents had a special two-zone blank for that, so I'm not sure it's possible to generate the patterns needed, and it would be a very substancial hack. There was a 12" LD burner used commercially from ODC/Nimbus (I actually have a UCSB disk burned that way!), but it was very expensive equipment and possibly no longer exists.
My thought is that it would be far easier to make something *similar* to Laserdisc that works digitally that takes straight NTSC data (~14mhz, 8bit video - which is what all later players process it into internally), ironically probably off a BD-R.
My personal interests are more into blending old tech with new like this - and learning a lot about DSP related things along the way!
What is this song called? I love the cars, but I really wanna know what the song is called.
what movie is that your play on your laserdisc?
It is called "Rock Adventure", and the uploader has also posted the full version