Howdy all!

I’ve been reading up on the suggestions from last week as much as I can, and I think I have clearer idea of what I want to accomplish for this experiment. If anyone is interested, Dr. Bruce Land at Cornell has fairly watchable youtube lectures explaining some of the concepts (phase ...

I think this question stems from my ignorance of some implementation details (I looked up a few data-sheets of various counters and was still confused) but if the phase accumulator is tied to the same Φ2 as the CPU, doesn't that clock-speed impact the lowest representable frequency? Taking Garth's ...

Lots of interesting stuff here, y'all.

I would say that BDD and Chromatix's suggestion that the 6502 be used more as a source of control values for an independent IC or circuitry, not synthesis, seems simpler to implement for a beginner like myself. I think once I get the basics of digital ...

Thanks for clearing that up Garth.

It’s pretty cool that you worked on the Portastudio 4-tracks! I’m not really old enough to have ever used cassettes other than for audiobooks, which seemed to have a longer lifetime on the platform than music. I did purchase a Portastudio 4-track a few years ago ...

I'm sorry to slow the conversation down, but I think I might need a little clarity to fully understand the suggestions here.

My understanding is that cynlic was not seeking to do full MIDI and synthesize an orchestra, but just do three voices like the old-fashioned computers games did. That ...

So you are just out to build something that offers a similar functionality like a SID,
but at hardware\software level it doesn't have to be compatible to the the SID,
and it feels like you would like to avoid using proprietary parts ?

That was the original idea, yes. I admit I've sort of had my ...

Wow y’all, this thread has already become a wealth of information and ideas! Thanks so much.
I’m going to have to take some time to suss out the best solution for me out of all of those posted. I’d love to go the DDS route that Garth suggested because it seems like such an extensive learning ...

Thanks so much for the quick and helpful reply! I’ll be sure to check out the circuit potpourri section you mentioned. I hadn’t thought of using digital synthesis and NCO’s, I guess because thought it was too labor intensive for a 6502-based system. It looks like I have even more to learn than I ...

Hi all,

I hope this doesn’t sound silly, but I was wondering if I could get some general guidance on how to approach a project I have in mind. I’ve been playing around with 6502 assembly off and on for a while now, mostly through the wealth of info in the NES homebrew games scene. I’ve begun to ...