C64: Wanted Dead or Alive

Bon Jovi’s “Wanted Dead or Alive” as played on a real Commodore 64. The song was digitized on an Amiga, downsampled to 4 bit audio and copied onto a 3.5″ inch disk that the Commodore 1581 drive could read from. The song data was streamed in realtime from the drive to the tiny 64Kb of memory in the computer and fed to the SID chip for our aural delight. I presume the screen has been blanked to save processing power, or the data for the sample gets dumped into screen memory.

This did require an Amiga with the Perfect Sound digitizer. I hooked up the CD player to the digitizer and then using a custom routine on the Amiga, my brother would convert the data to a 4 bit sample. Then we used a null modem cable and Novaterm with a cartridge port adapter to transfer the data to a 1581 floppy. Quite a bit of work went into this.

20 years ago I recorded my own voice onto a cassette saying the word “Ozone” (the name of my demogroup) and I figured out how to sample my voice using the Commodore cassette deck hooked up to the C64. I can’t remember now what memory register it used, I’ll have to search my disk images or examine a C64 memory map one of these days. The quality was terrible but if you knew what was being said you could make it out. It had to be kept short because I’d ran out of memory! I think I used it in the last part of my demo “Awareness of Reality”. (via)


You might also like

If you like this post then please subscribe to my full RSS feed. You can also click here to subscribe by email. There are also my fabulous photos to explore too!

3 thoughts on “C64: Wanted Dead or Alive


  1. Think I have that demo as a D64 if you want it? Definitely remember the sample. Samples generally played back through $D418 (the volume register)


    1. I have it! AOR and a few other demos were the first things I copied over to PC back when all was required was an X1541 parallel cable. Then PCs got complicated and their parallel ports required more resistors and stuff so I never got much more off.

      You filled in the gap with my Cforce demo and a few other things a couple of years ago, thank you!

      I got most of my disks copied over a few months ago and even found my old DMS64 app. D’you remember that? A few of the guys I swapped with used that to squeeze an extra disk of stuff on to already bulging demo disks :)

Leave a Reply

Loading Facebook Comments ...