One Synth Challenge #208: OB-Xf by the Surge Synth Team (Now Compatible with OB-Xd patches!)

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Welcome to the the One Synth Challenge! :party: :party: :party:
It's a friendly music competition where you can win cool prizes but most importantly, meet amazing musicians, and learn a lot about mixing, sound design, and more! :)





Here's How It Works:
  1. Download our synth of the month here
  2. You make an awesome track before the 1st of next month using only the chosen synth and some effects *Rules Apply*
  3. Announce your submission here on this thread, with proper details
  4. At minimum, please mention # of instances of the synth, the DAW (Reaper, Ableton, etc), and all plugins.
  5. Submit your soundcloud link here following the correct format for title, download enabled, and submission description. Your song will be picked up on the OSC player
  6. Once submissions are over, the voting starts - you *MUST* vote to get a ranking or prize
  7. The voting link will be posted on the 1st, and OP will be updated.
  8. Maybe you win? You meet new friends? Learn something new?
  9. Most importantly... have fun!

    **MAKE SURE YOU READ THE RULES** | See Contest Page for latest track Submissions, Info, FAQ & More






Bug Reports / Feedback / Support:







Submissions:
Will show up here once voting starts (n/a):





This Month's Synth:
This beast is made by the Surge Synth Team: "OB-Xf is a continuation and modernisation of the last open source release of OB-Xd by 2DaT and later discoDSP. It is inspired by the venerable Oberheim OB-X."
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Prizes:
(Would you like to be a sponsor / prize donor? Contact RichardSemper via PM or go ahead and post your intended donation here! Get a cool mention on our donator wall of honor)

Note:
We are offering a secondary prize (on top of the normal prize): Additional Bonus Prize!
  • **It's Back!!!*** Hardcore Mode: The highest Single Instance entry in the top 5 gets a cash bonus of $50 USD. (note: this prize may be carried forward to selected OSC challenges until it is won).
  • Yuli Yolo Sound Design: Top 3 winners may claim a soundsets for Vital: Diversity, Bass Music Wavetables, Noises & Exciters





    Ternär Music Technology : **New Prize*** 1x NFR for either Flechtwerk Pro or ChannelStrip Pro Many thanks to the developer :hug
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    Daw Junkie : **New Prize!!!*** A Complete Synth Bundle 2
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    Big Daw Audio : **New Prize!!!*** One copy of Calm Before Plugin - a mixing one knob plugin that "MAKE DROPS & CHORUSES HIT HARDER"
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    KV331 Audio : **New Prize!!!*** Synthmaster 3 Producer Bundle
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    Dawesome : One NFR for an arbitrary Dawesome plugin of choice!
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    NUSofting : Choose any one NUSofting plug-in of your choice
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    Touch The Universe : Winner has option to receive 50 banks, totaling $1000 USD!!!
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    Red Rock Sound : Choose 1 Copy of any plugin
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    Dmitry Sches : Diversion
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    Luftrum : Two Choices: 1x NFR license of either Bioscape or the new Lunaris 2 (or two soundsets of choice)
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    Audio Thing : Outer Space (vintage tape echo plugin)
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    JRR Sounds: Any 1 soundset (This is a secondary prize, you may pick it as well as your main prize)
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    JRR Shop : UVI: Digital Synsations (vintage 90's synth sample library and player)
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    satYatunes : One of any commercial product
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    Xenos Soundworks : Choice of any 1 product
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    Newloops.com : any 3 sound packs of choice (excluding bundles)
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    The Unfinished : Any two soundsets of Choice
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    Aiyn Zahev Sounds: Any 2 Soundsets of choice from the website (Uplifting Trance Presets)
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    Solidtrax : 1 Soundset of choice (except for the Future Chill and Space Trips expansions)
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    Bjulin : Inspire soundset for Zebra 2
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    LeapIntoTheVoid : Falcon Iterata X subscription or any two soundsets of your choice (Updated Prize!)
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    Mulperi : 1 Soundbank of Choice
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    Any other offers of prizes will be greatly appreciated. :hail: :hail: :hail:


    Questions? Comments? Concerns? You want some love? Just post here in this thread :)


    Want to try out your skills in other contests / competitions /challenges?
    • Itch.io Game Jams: Find game developers looking for musicians. Create music for games, and help win the jam!
    • Mix Challenge - Join monthly recurring Songwriting Competitions (with a new theme/genre every month) and/or Mix(ing) Challenges (mixing multi-tracks from scratch). Win prizes!
    • RemixExs - A list of contests / music challenge (Seems to be having issues as 2024)
    • Skio Music Contests - Lots of remixes you can join (Mostly EDM) - big prizes.
    • Splice contests listed on Splice
Last edited by bjporter on Tue Jun 02, 2026 12:53 am, edited 2 times in total.

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PLEASE NOTE: OB-Xd patch/bank import functionality is currently only available in NIGHTLY builds!

ANOTHER NOTE: MPE functionality is still being finetuned, chances are some things are likely to change during the nightly phase still (most obviously: modulation amount ranges/scalings), so I would warmly advise not depending on that functionality for this challenge, since the patches you create with the nightly are not guaranteed to be compatible with the final 1.1 release, when it happens (which we hope will be sometime this Summer).

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This thing sounds nice.

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Had trouble dropping the vst3 folder into windows VST, but the installer seems to work fine.

Scanning through presets, I think I know what I would like to try to do, but will have to focus this month to really get it done.

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Yes, please just use the installer, it does all the right things to make the thing work :) ZIP archive is expert mode only. ;)

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Fun!

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I'm going to get distracted playing with this and forget to vote on last month :party:

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I didn't like messing with its predecessor, but I think a little bit of tweaking presets, a little Reverb and Chorus, and I have a very jammy concept and will have story to tell this time.

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Go go Surge team! <3
https://soundcloud.com/vospi
I love music, worked with a number of music/rhythm/dance games like Pump It Up, In The Groove, Cytus and Deemo, and teach music production.

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Starsickle wrote: Tue Jun 02, 2026 3:06 am I didn't like messing with its predecessor, but I think a little bit of tweaking presets, a little Reverb and Chorus, and I have a very jammy concept and will have story to tell this time.
Careful about that chorus, it could get you disqualified!

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I was had some subtle paid preamps and eqs going before I realized I think this a no exceptions for paid 3rd party effects. Still early in production, glad I didn't get too far down the line yet. UAD has a free preamp currently, and seems like it's locked into their free DAW bundle download, so I wonder if that's all good. It can be used as a VST3 in any daw.

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New user here. If I bounce all my tracks to audio except for 1, does that qualify as a single instance entry?

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lectro_wind wrote: Thu Jun 04, 2026 4:12 am New user here. If I bounce all my tracks to audio except for 1, does that qualify as a single instance entry?
No. Each bounced track would count as a separate instance.

Welcome to OSC, and good luck :)

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RichardSemper wrote: Thu Jun 04, 2026 4:47 am
No. Each bounced track would count as a separate instance.

Welcome to OSC, and good luck :)
Thanks.

So genuine single instance opportunities only really exist with multi-timbral synths I suppose.

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RichardSemper wrote: Thu Jun 04, 2026 4:47 am

No. Each bounced track would count as a separate instance.

Welcome to OSC, and good luck :)
Or, if you mixed all the bounced tracks into 1 track?

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