wr
hn
Top
New
Best
Ask
Show
Jobs
Back
t
tonysavon
Joined 8 years ago
Karma
12
Submissions
6
Member since
Mar 28
View on Hacker News
Recent submissions
Comment · 8 years ago
We are not talking about REUs here, as clearly stated in the article. We are talking about Ocean Type Cartridges, which were available in the 80s. And yes, they where ROM, not RAM, and yes, they came in those sizes. 16Mb ram expansions did not exist, 1Mb ROMs did exist
Comment · 8 years ago
That's a very good point! And also one to keep in mind for a possible additional demo. Use only hardware from the 80s also for the encoding!
Comment · 8 years ago
This is running on an Ocean type cartridge as a storage, which is considered stock Hardware in the demo community, as stated in the article. If no additional device can be "accepted", then all of the demos mentioned in this thread should be disqualified too, because they use a disk drive.:-) In general, the technology showcased in this demo of course would work also playing the song from RAM, it would just be a bit too short :-)
Comment · 8 years ago
The three-byte codebook version (the mazinger demo) can't even afford the increment, and just does a sty $d020, which takes 2 cycles less, hence the colorbars look a bit different on that one. But the audio sounds better.
Comment · 8 years ago
Playlist with the three demos:
https://www.youtube.com/playlist?list=PLFeDsJqcV6DhwH16fVp_a...
Comment · 8 years ago
This is on stock C64 too :-). I guess the achievement here is using compression at such a high frequency. Once you get down to lower frequency, you can implement fancier compression schemes and add more stuff on display. The same author has compressed video plus compressed digi streaming from floppy disk here:
https://www.youtube.com/watch?v=qIRww2a59lE
But of course, that's not 48Khz and it sounds like that :-)