Surge - a new module collection from a great digital synth

I have used the surge rotary extensively so far but not much else, it is very user friendly and seems to work very well. Looking forward to time to take others for a spin. Love that they are being ported into Rack modules rather than just staying in VST land!


Wow, this is awesome. Thanks! I’ll definitely download it, play around and report any bugs I find.

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Damn it is AMAZING!!! (


True, still have some bugs. Because it’s still beta?

I wish it was beta yet! This is cutting edge alpha.

Reports on bugs you find are very valuable to us!!

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WOW! THIS IS AMAZING! I’m a longtime user of Surge since 2006, It’s my main tool in everything I do, I have a huge preset library that I’ve made.

I’m sooooooo looking forward to this!

OBS: The crack version of surge 1.5.2 works better then the newely relesed beta somehow.

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We just (literally 2 hours ago) released 1.6.0 of the VST/AU (not of the rack modules - those are still alpha) and most folks think it works well. If you have specifics for the way it works worse than 1.5.2 though I would love to know but that’s for over at not for here.

True! 1.5.2 is still better. (I have try 1.6.0 also).

So: If you have ways that 1.5.2 is better we would love to know them. They must be obvious since 1.6.0 was only released literally 20 hours ago! But none of us have 1.5.2.

So please do feel free to drop those in as issues there.


I played with the Surge VST last night, it is very powerful and I have only scratched its surface. This can be my intro into polyphonic synths. Have to say I am looking forward into bringing Surge to Rack.

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Just as a sneak preview here’s a little demo I made of the surge vocoder running in rack. (In this case I used loopback and logic as the sound sources but the routing and processing is all rack as I hope you can see)


This sounds really good to my ears, but its 1.0 only?

Any chance you could try Nysthi SAM through it? Because that’s the first thing I would do.

Yes it is 1.0 only.

You can route anything to it yeah! My dev environment just has surge-rack BaconMusic and fundamental but if you can build 1.0 plugins and are running 1.0 you can grab it from GitHub and try today!!

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Here’s another fun preview. I’ve been making everything polyphonic and also doing some profiling Here’s a multi-osc polyphonic voice set playing one of the midi files from the BaconPlugs poly generator.

You can get all those modules right now if you build surge-rack from master. All the changes are in the code. As you can see, more of the modules are getting proper faceplates as well as polyphony. In this example, only the Delay unit has a generic face.

Will try and get this into the community release before I do some travel at the end of June. Again, feedback and tests welcome.


Haha, used to be able to play that on piano but I definitely don’t have the muscle ability anymore for that.

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Yeah I hear you! But boy what a great poly test track :slight_smile:

Oh hey by the way: Your profiling meters are sooo useful. Just generally - thank you for making Rack 1 both great and sensible software!


OK as of this morning all the modules which can be polyphonic are. Here’s an example of the super powerful wavetable oscillator using one of the hundreds of wavetables which ship with surge to make a sort-of-wierd-trumpets-in-a-canyon sound to goldberg variation 10.

I’m going to try and get this software ready to include in community this week so it can be available, even as an incomplete but working beta, when rack 1 ships. If you are building your own 1.0 plugins, trying these would really help me bang out bugs.


Hi everyone.

I have these modules far enough along that I’ve decided to tag them as a “1.beta1.0”. I still have lots to do and there will be changes over the summer, but the module set is a good starting point. (Over the summer we will see more filters, more non-generic faceplates, and more performance and code improvements).

I have asked for the project to be added to the library builds ( but if you want to try the project, now that Rack ABI is stable, if you are using an appropriate version of Rack 1.0 you can download our nightly builds from here:

We would very much value you’re feedback. GitHub issues are the best approach. I am going to be offline a bit for the end of June and start of July, but all feedback is useful.

EDIT: A rudimentary manual is now online at

Thanks and look forward to hearing anything you find and - more importantly - hearing any music you happen to make with these modules!