Phasor, high quality video

This is a proper video capture of Phasor, an ATmega88 demo that I posted earlier this year. The video was provided to me by Barta Zoli from Hungary, for which I am very grateful.

The demo is running on an ATmega88 microcontroller, with 1 kB of RAM and 8.5 kB of ROM, and it generates a PAL composite signal with the help of two diodes and two transistors. Learn more at http://www.linusakesson.net/scene/phasor/index.php

Youtube has added a lot of compression artifacts to this video. You can download the original here: http://www.linusakesson.net/files/lft_phasor_capture.mpg

Category:

Film & Animation

Tags:

• phasor
• demo
• scene
• microcontroller
• pal
• composite
• chip
• chiptune
• music
• linus
• akesson
• lft
• breakpoint
• diy
• electronics

[PivotMasterD1]

I noticed that the music sounds like keygen music, and in the scene thing with all the text that lights up, one of those strings says "fairlight". Is that on purpose?

[lftkryo]

@PivotMasterD1 The "thing with all the text" is called a greetings part. That's where I greet other demo sceners and demo groups that are still active and doing awesome stuff. Keygens come from the world of software cracking, which is different from the demo scene, although they share the same roots. Fairlight has been active in both these communities for over 20 years, but even within fairlight the crackers and demo sceners are different people.

[chrisiverzen]

Cool song! Is it you who have composed it?

[lftkryo]

@chrisiverzen Yes it is. Thanks!

[Primiscomputers]

Any way to mod this to work with NTSC? The signaling is a bit different, 60 hz instead of 50, color carrier is different too... oh yeah and did I mention the horizontal lines is smaller? 480i... Still any comment would be appreciated.

[lftkryo]

@Primiscomputers The biggest hurdle would be encoding the colour signal. I'm using a trick (documented on my site; follow the link in the description) to get away with generating colour information at half the nominal rate. This trick is based on the phase alteration done by PAL, and would not work for NTSC. It would still be possible to get something to work with a small subset of the available colours, though.

[Devicon]

Out of fucking nowhere, a parrot lol

[chaincells]

Dude. This is like LSD.

[ybrik222]

What exactly is this?

[bobbrosenbaum]

made me tap my foot

[NLRevZ]

Linus, you've done it again. Congrats on yet another awesome creation!

Did you run this at Breakpoint 2010?

(On a side note, I still have my build of your hardware chiptune project here beside me, still working :) )

Greetings from the Netherlands!

[technoverload]

8-bit acid ¥(^.^)

[bs2290]

wow lft , this is great!

[TheDuttyProfessor]

this is really great, love the song and the video - please don't stop doing this stuff, it's awesome!