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nukeykt / Nuked-SC55

Roland SC-55 series emulation
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SCC-1A and SCC-1B Support? #33

Open OpenRift412 opened 2 months ago

OpenRift412 commented 2 months ago

So does the recent support of the SCC-1 ROMs also encompass the SCC-1A and SCC-1B variants? Or is that still yet to be done?

nukeykt commented 2 months ago

In theory: yes, in practice: who knows

zaphod77 commented 2 months ago

i just saw an scc-1a board, and it has the exact same three wave roms, at least according to the silkscreening on the chips.

and i haven't found a pic of a scc-1b at all. strange...

nukeykt commented 2 months ago

yea, only mcu roms are different from normal SCC-1

zaphod77 commented 2 months ago

then where's the extra mcu rom? i'm guessing that's the main thing that makes a mkII into a mkII?

nukeykt commented 2 months ago

IC10 and IC14 are different

matt713 commented 2 months ago

do any of you - the people commenting here, owns SCC-1A card, especially broken/faulty one that you are willing to sacrifice? I wanted to contribute for adding SCC-1A support to the project, but the real hardware is required for that and the only SCC-1A card I found is on eBay with price of 4000 Euro?! So, at this point SCC-1A support is pending - indefinitely, maybe even never, if the card is that rare and expensive and no one wants to do what's necessary.

AndyGraewe commented 1 month ago

In case this is not clear to all of you: SCC-1 = soundset from SC-55 MK1 SCC-1A = soundset from SC-55 MK2 SCC-1B = same as 1A, but bundled with software

I had a SCC-1 (first generation) back in the day when it was released. But I realy don't see the point of emulation it now, when it is basically the same as SC-55MK1. Or the SCC-1A instead of the SC-55MK2.

zaphod77 commented 1 month ago

the cards have no display, but more importantly, no battery. so the 1a being emulated will be a better working mkII for just playing back midis than the currently emulated one is.

On Mon, Jun 3, 2024 at 11:39 AM AyGee @.***> wrote:

In case this is not clear to all of you: SCC-1 = soundset from SC-55 MK1 SCC-1A = soundset from SC-55 MK2 SCC-1B = same as 1A, but bundled with software

I had a SCC-1 (first generation) back in the day when it was released. But I realy don't see the point of emulation it now, when it is basically the same as SC-55MK1. Or the SCC-1A instead of the SC-55MK2.

— Reply to this email directly, view it on GitHub https://github.com/nukeykt/Nuked-SC55/issues/33#issuecomment-2145878851, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAQL7ZO6VS2MMSAMJFSECRDZFSZ5LAVCNFSM6AAAAABGBE3XUCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCNBVHA3TQOBVGE . You are receiving this because you commented.Message ID: @.***>

matt713 commented 1 month ago

But I realy don't see the point of emulation it now, when it is basically the same as SC-55MK1. Or the SCC-1A instead of the SC-55MK2.

if they are (exactly) the same, then the ROMs will be the same, but they are different. also, SCC-1/CM-300/CM-500 (all using the same ROMs, because CM is Computer-Module and they are essentially SCC-1 in External box) are proven not to be equal to other devices:

https://www.vogons.org/viewtopic.php?p=1110160#p1110160

which is a follow-up to this:

https://www.vogons.org/viewtopic.php?p=1092925#p1092925

and it seems it's all related to their "Capital Tone Fallback" behavior. also, the goal of this project is preservation and currently SCC-1A is not preserved, in fact as there is no dump, no one really knows what is different and/or the same with SCC-1A compared to any other SC-55 devices.