SwinSID - a pin compatible alternative to the SID chip

Good morning TK!

Nice to see the project growing. There will be no pressure, because most of us are still looking for the original SID.

But i like the idea of an independent SID-like synth. “Cheap”, dirt and “lofi” with the advantages of a real synth is just what i want.

best regards

Christian

ps. found some TDA’s over @segor.de

a 100% accurate SID emulation cannot be expected.

Fine by me :smiley: It’s great so far, just the way it is!

Swinkels just suggested today to use two AVRs instead of one

Ohh yes please ;D

Swinkels, TK, take your time. I dont believe we are in hurry. Im sure we already have more projects on “do to” list  than we have time to build it.

Personally I dont expect exact SID emulation at all, more something new, different. And what swinSID advantages sounds really great. Now that Wilba is selling 6582s and those nice PCB`s everybody can build one even if no C64 around.

Semo sounds really great, I wish there are few more, but please dont make it if you dont feel like. Better spend more time developing.  :slight_smile: Looking forward to see the fruits of your collaboration.  :wink:

Sounds to me like it’s growing into quite a chip project! I wonder when you mention wavetables, could it produces results like the Elba Monowave? If so, that would be awesome! I know that uses a moog style filter rather than a DCF, but I think I’d prefer the nasty aliasing you get from the DCF. There’s all manner of smooth sounding synths, who needs another Moog clone :wink:

Another tip: the 24 MHz crystal “24,0000-HC18” from Reichelt cannot be used (it’s a 3rd overtone crystal) - just use an integrated oscillator like “OSZI 24,000000” instead.

Ah, that’s the point. I built one using this crystal type. I made a test in a c64 and swinsid outputes only random noise. So I have to replace the crystal with the osc… Thanks TK

TK, you’re right - that filter is filthy.

I need a shower.

And a SwinSID.

*bump*

How goes the SwinSID work? Can’t wait for the SwinSID modules :slight_smile:

Any chance you could post the unassembled code with it, too? I’d be interested in trying a dsPIC version, (16-bit pic, filters, and whatnot), even if just for fun.  ;D

I’ve got the 16-bit dsPIC tools and such, just need a reason to crack open the box and get’em going  8)

Hmnnnnn… I want one, sounds a bit like a 303. Dunno if I want to substitute a couple for some 6582s in my Wilbabeast though, wouldn;t be a MB-6582 then.

I think I may have to build another midibox, which is good. By building the MB-6582 I feel that I’m missing out on learning about the MBHP and how it all fits together… So quite a few projects now… MB-6582, Mr Midi thingy, MB-FM, Swinsid and something else I’m looking at  :wink: Think I may have to cancel some holday at some point.

        G

By building the MB-6582 I feel that I’m missing out on learning about the MBHP and how it all fits together…

Sorry for the off-topic, but I disagree… they are the same MBHP modules just assembled onto one PCB, and where possible, I’ve even kept the same part numbers. The PCB makes it smaller, and a bit easier to put together (less wiring, no DIY power supply/BankStick), but you still can and should learn how it fits together by looking at the schematics and wiring diagrams.

I understand it’s the same modules that make up the MB-6582. Don’t get me wrong, I’m not against the MB-6882  in any way, I think it’s an amazing thing you have done for the community there. I just feel that it will be a greater learning experience for me to learn about building the modules seperately as well, I certainly want to build a set up so I can mix and match, try different things out and learn how they all work. Eventually i’m looking at designing my own midibox so I need to learn about each module in depth, unfortunately the only way I seem to be able to learn and take information in is by doing rather than reading.

      G

SwinSID is still in development and the new version SwinSID X2 is almost ready now. It is designed to emulate  two SID chip working with one MB core.  In fact SwinSID X2 has two AVR connected with single DAC

Latest firmware provides better sound quality (low aliasing), new waveforms and nice features: simple FM synth, two oscillators per voice and white noise generator.

Firmware is quite stable now with all features working, but I need to design layout for new MB module. If you want to help with testing or designing layout then let me know.

I will consider releasing the source code.

Sounds Amazing  8)

Hi,

amazing stuff,cool!

@Swinkels : Is it possible to add an option to switch the aliasing-filter off? Would be nice to have some “x-tra lofi-amount” by a flick of the switch. Waldorf did this in their microwave 2 engine and I like this feature very much!

Regards

Brother303

Yes you can do it by enabling double oscilator mode - in this mode anti aliasing is not supported.

Now I’m only waiting for the new stereo demos from TK :slight_smile:

Ahh nice work swinny! :smiley:

Indeed! hooray for swinny!  ;D

This is a great project.

I think the sounds of Swinsid arent too shabby at all:

http://www.swinkels.tvtom.pl/swinsid/

It has probably improved a lot since, but even those sounds, sound like a decent sid emulation

Just wanted to keep this one alive and also wanted to know if there is any news on what parts to buy  ;D

my soldering iron need work to do  ::slight_smile:

I think might have to buy a new soldering iron.  All these cool projects I might have to use both hands just to keep up.  Fantastic job guys!  Keep up the great work all around.

Firmware is quite stable now with all features working, but I need to design layout for new MB module. If you want to help with testing or designing layout then let me know.

So, a SwinSIDx2 module? Sweet  ;D

So, do you have a circuit diagram and need a layout, or do you need both?