SWAY - a synth modeled after the Yamaha SY77

[DrGonzo]

This might be one of the most anticipated releases in a long long time.

[mdx4ever]

Your FM only demo is ready, sir.

Stunning! The rhythm section gave off Wavestation vibes, but it looks like it took a few patches to accomplish that. Excellent programming!

Excellent indeed
Is there a dateline for official release?

[uselessmind]

Would it be possible to showcase an FM only appetiser ?

Your FM only demo is ready, sir.

A little bit hyped for this. Usually doesn't happen these days.
Also adding my vote for a linux version.

[gentleclockdivider]

Question for the developer , as you have gathered there is a lot of excitement for the upcoming Sway , so perhaps you could shed some light .
Have you tried Plogue ops7 ?
Which I consider to be the best dx7 emulation ever ( sure lot's of people will agree ) .
Then there is the freeware dexed , which is also pretty great .
Now for the million dollar question , Will Sway be in the dexed or Ops7 ballpark ?

[beely]

SWAY doesn't seem to be attempting the same approach that Plogue did, by literally reversing engineering the chips and recreating the exact inner workings of the machine, so that should answer that. I expect it's probably pretty hard to accurately recreate all the FX settings too - I think the dev has gone for a "close enough" approach, rather than "bit identical", from earlier postings.

So I'd say wait until you can eventually demo it, and decide for yourself whether it's a product that you want to use...

[gentleclockdivider]

SWAY doesn't seem to be attempting the same approach that Plogue did, by literally reversing engineering the chips and recreating the exact inner workings of the machine, so that should answer that. I expect it's probably pretty hard to accurately recreate all the FX settings too - I think the dev has gone for a "close enough" approach, rather than "bit identical", from earlier postings.

So I'd say wait until you can eventually demo it, and decide for yourself whether it's a product that you want to use...

Yeah , about the bit accurate part I guess Plogue is kind off unique in that way .
Either way , Sway will be used for sure , even if it's only in the tg77 ballpark and ofcourse as an editor

[Sound Author]

I'm a bit late to the party here, but this looks to be a really nice FM synth. I'll definitely check it out when it drops.

[sheaf]

Question for the developer , as you have gathered there is a lot of excitement for the upcoming Sway , so perhaps you could shed some light .
Have you tried Plogue ops7 ?
Which I consider to be the best dx7 emulation ever ( sure lot's of people will agree ) .
Then there is the freeware dexed , which is also pretty great .
Now for the million dollar question , Will Sway be in the dexed or Ops7 ballpark ?

What beely said is correct. My approach is the same as the one that was documented for the MSFA project, which is the basis for Dexed. Basically I have written a ton of scripts that measure what the TG77 does with a certain parameter by isolating that parameter in a patch and recording each possible setting for that parameter. I then graph the data to figure out what's going on, and fit a curve, or make a look up table, or a recurrence relation, or whatever is needed to get the same result. The method by Plogue is superior of course, but I don't have the technical skills to pull that off.

For most parameters the results are close enough in that you wouldn't be able to hear the difference in a blind test, even though it's not exactly reproduced at the bit level.

For some areas getting a close enough result has proven to be quite tricky. The filter envelopes are the most problematic, especially in combination with velocity rate scaling. To be honest this is where I'm still a bit worried that I'm not going to get it close enough.

There are also a lot of patches where it's almost there, but you can hear a difference in the transient. That probably has to do with me not getting the envelope rate measurements exactly right for the faster settings. If the timing of R1 is slightly off on 6 operators, you can imagine how that could make the transient sharper or duller depending on if we're going too slow or too fast. I hope that will be sorted out if I tighten up the accuracy of those fastest rates.

TLDR; It's more like Dexed than OPS7, but I don't know how SWAY compares to Dexed in terms of accuracy because I don't have a DX7. I'm sure you'll let me know once I send you a version to test?

[trusampler]

I own Plogue's OPS7, and would be willing to help test SWAY and compare settings, if you're eventually looking for more testers.

[sheaf]

I own Plogue's OPS7, and would be willing to help test SWAY and compare settings, if you're eventually looking for more testers.

I meant I don't know if the accuracy of SWAY as a SY77 emulation is the same as the accuracy of Dexed as a DX7 emulation.

You can't directly compare settings between the two because they're completely different.

[trusampler]

Right, thanks, yes I'm aware of this. I'm a big fan of the DX and SY series, I now have the montage m with it's FMX Anything you need help with, I'm sure us KVR users will love to test and help get this where u want it. To my ears it sounds extremely close to the 77 as it is from demos. Congrats

[aantetomaso]

Hi @sheaf, I am really excited for this project and can’t wait for the release of the plugin. I have been a SY77 owner/lover for a long time and programmed it a lot. Unfortunately I sold it too early and even if I am a Montage user (I owned a Montage 7 and now I have a Montage M), I still miss the SY. Have also a lot of commercial banks to test, that are not available to buy anymore.

This is my website: https://www.gprmusic.com, with my music and my soundbanks.
If you’re planning to ask for beta testing of your plugin, I’d be glad to help, just let me know how to do.
Thanks a lot and keep going on!
Best.

[DocAtlas]

Still useful, but I didn't find the ROM samples on that page.

You saw S7731, but didn't see "SY77 Wave ROM"? If you're talking about the list of files, note that when you click on the link, you see you are on page 1 of *2* pages of files...

I don't want to post direct links here out of respect for the developer, but basically, you're not looking hard enough, the ROMs are there.

Thanks, I found it now. I hadn't noticed there is a second page.

[DocAtlas]

I just found this interview with John Chowing. I figure some here will find it interesting.

[kneebone77]

Love where this project is headed! Can't wait.