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

[hennessey]

Entry:
https://soundcloud.com/hennesseyb/henne ... nation-208

15 Instances in Live 12.

DAW: EQ8, Saturator, AutoFilter, AutoPan, Echo, Compressors, Reverbs, Delays.
3rd Party: OTT

[YYeet]

My submission for this challenge:
https://soundcloud.com/yyeet4444/flicker-1

DAW:
Ableton 12

65 - OB-Xf

Stock Plugins:
13 - Utility
11 - EQ Eight
8 - Reverb
5 - Auto Pan-Tremolo
3 - Delay
2 - Compressor
1 - Envelope MIDI
1 - LFO (because OB-Xf's synced LFO somehow sounds different depending on where my playhead starts from)

3rd Party Plugins:
3 - TB Reverb v3
2 - LoudMax
2 - GATE-12
2 - kHs Clipper
1 - MWaveShaper
1 - MRingModulator (used for ring mod sidechain)
1 - TB BusCompressor (used for ring mod sidechain)
1 - TB Barricade v3
1 - MLoudnessAnalyzer
1 - Signalizer

My schedule has been super packed recently and I'm going through some stuff, so this track was quite the journey! It started as a bunch of different ideas written at separate times which I thought would work together, turns out they didn't lol, but I managed to merge them all together.
There are some questionable mixing decisions, but I've decided to embrace them. To me, those imperfections represent the hurdles I'm currently facing and I don't want the track to sound as "well made" so I can listen back and reminisce on this moment. But don't let this stop you from giving any feedbacks!
Hope you guys enjoyed the track and feel free to leave any comments or feedback!

[z.prime]

There was some complaining about using Frequency Shifter+, so I removed it and updated the details here. Much better track info now...

[MattCable]

Almost there. Nice seeing all the great tracks come in!

[SIL3NC3_SWX]

One Synth Challenge #208: OB-XF by Surge-Synth-Team

https://www.kvraudio.com/product/ob-xf- ... synth-team
https://sites.google.com/site/kvrosc/2026/osc-208-ob-xf
viewtopic.php?p=9250344

-------------------------------------------------------

SiL3NC3_SWX - Hyperbolic Drift
https://soundcloud.com/soulwerx/sil3nc3 ... olic-drift

Time doesn't speed up. It only feels that way.
Hyperbolic Drift is built around a continuous sinusoidal tempo modulation,
blending ambient atmospheres with deep house into a constantly shifting flow.

NJ0Y.

-------------------------------------------------------

DAW: Bitwig 6.1 Beta2
18 instances of OB-XF

Bitwig:
- Arpeggiator, EQ2, EQ+, EQ-5, Reverb, Filter+, Tool, Convolution, Saturator, Delay+, Delay-2, Blur, Distortion

FX:
- Airwindows Consolidated

Mastering:
- Bitwig: Compressor+, Peak-Limiter
- Other: Polarity-MD, Free Clip 2, Big Max Zero

Analysis:
- Spectrum (Bitwig)
- K-Meter
- Own FFMPEG Tools

PS: Entirely made with Debian (Linux)

Keep on Looping...

-----------------------------------------------------
~ Copyright : SiL3NC3 - 2026 : All Rights Reserved. ~

Screen.png

[maxym.srpl]

Hello everyone,

Here's my entry for this month's challenge.

Not gonna lie, this one fought me from the very beginning. I had a really hard time getting the sounds I wanted, and there were a few points where I was ready to throw in the towel.

At one stage I even thought maybe I should just lean into what this synth does best instead of trying to force it into something else. Then again, part of the fun of OSC is hearing people do things with a synth that seem impossible. I'm still learning, and I'm still a long way from being able to do everything I hear in my head.

The track also ended up going in a direction I hadn't planned. That finale definitely wasn't part of the original idea. Maybe that's down to my sound design, maybe it's the synth, or maybe both. But we're all racing the clock here, so at some point you just have to stop tweaking and call it done.

Anyway, I hope you enjoy it!

https://soundcloud.com/michal-maxym-koz ... ion-fields

Code: Select all

DAW: Reaper 7.75

Instruments:
23x  CLAPi: OB-Xf (Surge Synth Team)

Effects:
1x   CLAP: ANINA (CRQL)
1x   JS: ReaVision Metering Suite (chmaha)
1x   JS: Transient Controller
2x   VST3: Cramit (Sixth Sample)
3x   VST3: Deelay (Sixth Sample)
8x   VST3: ValhallaSupermassive (Valhalla DSP, LLC)
2x   VST3: ZL Compressor (ZL)
19x  VST3: ZL Equalizer 2 (ZL)
8x   VST: CHOWTapeModel (chowdsp)
1x   VST: Dragonfly Hall Reverb (Michael Willis and Rob vd Berg)
2x   VST: Dragonfly Plate Reverb (Michael Willis)
2x   VST: Dragonfly Room Reverb (Michael Willis)
1x   VST: OrilRiver (Denis Tihanov)
4x   VST: ReaComp (Cockos)
3x   VST: ReaDelay (Cockos)
5x   VST: ReaLimit (Cockos)
1x   VST: SPAN (Voxengo) (8ch)

Monitoring plugins:
1x   JS: Goniometer
1x   JS: Oscilloscope Meter (Cockos)
1x   JS: ReSpectrum
1x   JS: ReaVision Metering Suite (chmaha)
1x   VST3: Youlean Loudness Meter 2 (Youlean) (10ch)
1x   VST: SPAN (Voxengo) (8ch)

Offline/inactive plugins:
2x   CLAPi: OB-Xf (Surge Synth Team)
1x   JS: Volume Adjustment
1x   VST3: Cramit (Sixth Sample)
2x   VST3: Deelay (Sixth Sample)
1x   VSTi: BlueARP (graywolf2004)
4x   VST3i: StepicVST (Devicemeister)

[maxym.srpl]

BTW, at the beginning of the render (Reaper), regardless of 0.5 sec padding, there is a hearable click.
It looks like rendered values do not start from zero. It does not happen during playback within the DAW.

If it's an issue with the plugin, then maybe something the plugin authors can look at
I just solved it by adding 5ms of fade-in during render.

[z.prime]

That's somewhat normal for free-running oscillators: they will start mid-phase. Maybe there's no minimum attack? Often synths will add 0.1 milliseconds or something of attack as the minimum value to smooth it. Probably just add attack manually? OB-Xf definitely has free-running oscillators.

[RichardSemper]

Here's my entry:
https://soundcloud.com/richard-semper/r ... nge-in-the

Used 19 instances of OBXF in Mulab 10.2

DAW Fx: Limiters, HP and LP Filters, EQ.

Free Fx plugins used: Voxengo Marvel GEQ, Solaris, Sirial, Valhalla Supermassive.

This implementation of the OB-X synth is much more fun to use than its predecessor. Sound design was great! I would start with randomize as inspiration for making patches and see where it led me. Kick and snare were made using a couple of layers each.

Cover Photo taken 27 June at Scarborough South Cliff by me. Artwork by Jenny

[Tom Trnk]

Managed to put a submission together!

https://soundcloud.com/tom-trnk/incoming

Bitwig 6.0.4

26x Ob-Xf
4x Giant Verb
2x Bitwig EQ+ for highpass only
4x Bitwig Tool for volume automation and L/R swap on reverb sends
2x Bitwig Compressor
1x Bitwig Note Receiver for layering

Master:
FerricTDS mkIII
Limiter No6

Metering:
MStereoScope
SPAN
Youlean Loudness Meter 2

[MilksterX]

Here's my submission

https://soundcloud.com/milksterx/ex-panda

36 instances of OBXF in Bitwig 6

FX:
EQ5, 
Compressor +,
 Convolution, Dynamics
, Filter,
Saturator
, Time shift
, Reverb

, Freeclip
, D16 Frontier,
Khs Transient shaper, Khs Bitcrush, Khs 3 Band EQ,
Khs Distortion, Khs Haas, Khs Reverb
, OTT, Raum, 
STFU
Supermassive, Wider
, TDR Kotelnikov
, Loudmaxx ,
TDR Nova

[MadMcMan]

https://soundcloud.com/madmcman/melted-city

here we go!

Made in Bitwig with 36 instances of OBXF for the June 26 one synth challenge

using the following free and bitwig plugins.

FREE:
Airwindows Air4
Airwindows kAlienSpaceShip
Airwindows kPlateD
Airwindows kStation
Airwindows PurestGain
BusterSe
DC1A3
DearVr Pro2
Dragonfly Early Reflections
FreeClip2
Khs Trance Gate
Khs Transient Shaper
Limiter No6
LoudMax
OrilRiver
OTT
Raum
STFU
Supercharger
TDR Kotelnikov
TDR Molotok
TDR Nova
TDR Prism
Valhalla Supermassive


Bitwig:
Compressor
Compressor+
Convolution
Delay-1
Delay-2
EQ-2
EQ-5
FX Layer
FX Selector
Instrument Layer
KeyFilter+
Mid/Side Split
Multiband FX-2
Multiband FX-3
Note Transpose
Quantize
Peak Limiter
Reverb
Ricochet
Saturator
Sculpt
Stepwise
Tool

[MadMcMan]

One Synth Challenge #208: OB-XF by Surge-Synth-Team

https://www.kvraudio.com/product/ob-xf- ... synth-team
https://sites.google.com/site/kvrosc/2026/osc-208-ob-xf
viewtopic.php?p=9250344

-------------------------------------------------------

SiL3NC3_SWX - Hyperbolic Drift
https://soundcloud.com/soulwerx/sil3nc3 ... olic-drift

Time doesn't speed up. It only feels that way.
Hyperbolic Drift is built around a continuous sinusoidal tempo modulation,
blending ambient atmospheres with deep house into a constantly shifting flow.

NJ0Y.

-------------------------------------------------------

DAW: Bitwig 6.1 Beta2
18 instances of OB-XF

Bitwig:
- Arpeggiator, EQ2, EQ+, EQ-5, Reverb, Filter+, Tool, Convolution, Saturator, Delay+, Delay-2, Blur, Distortion

FX:
- Airwindows Consolidated

Mastering:
- Bitwig: Compressor+, Peak-Limiter
- Other: Polarity-MD, Free Clip 2, Big Max Zero

Analysis:
- Spectrum (Bitwig)
- K-Meter
- Own FFMPEG Tools

PS: Entirely made with Debian (Linux)

Keep on Looping...

-----------------------------------------------------
~ Copyright : SiL3NC3 - 2026 : All Rights Reserved. ~

Screen.png

which airwindows plugin? i like to see if i've missed something cool. was playing with their compressors recently but the track it was on didn't make it to the final edit.

[ELEX]

Hi there, my entry for this month. It's been too long. Could fiddle with it for days more, but as time is up, it will just have to do as is.

https://soundcloud.com/elex101/elex-no- ... the-wicked

Made in REAPER, using OB-Xf for 9 FX, 14 instruments and 11 percs

aided by:
HOFA System Gain & Pan, TDR NOVA, ReaEQ, A1 Stereo Control, Kclip Zero and Flux Bittersweet mildly nipping & tucking on assorted tracks,
HY-Delay doing the obvious on lead, strings and FX,
Supermassive providing just a whiff of ambience on the drum bus,
and ReaControlMIDI performing per note fine tuning of all tonal instruments.
That's a bit of an experiment. I may have gotten it all wrong
Please feel free to share any thoughts on the subject.

Additional pushing & pulling on the master bus by:
Kclip Zero, Limiter No6, Flux Bittersweet, TDR Nova and A1 Stereo Control.
U-he Protoverb is providing a second whiff of ambiance.

Track art is AI, mostly. Though any responsibility for lack of taste entirely mine

[Mechanought]

Welp, I set aside my evening today to finish the track and my computer which has never crashed before, crashed. Several hours are gone and unrecoverable (I've already done every recovery method I know of). So it would seem the tech gods have decided I won't be uploading this one, unless I can muster the energy to try and push through it, but damn this one hurt.