Keepforest · AizerX
SFX Designer Toolkit
One Click, A Sound Nobody Else Has
Sample randomization for creating absolutely unique and authentic sound effects with a single click.
1723Wave samples
48Playable patches
6Categories
2.0Engine version
+And more
Braams●Whooshes●Benders●Alarms●Signals●Downers●Risers●Motions●Booms●Hits●& more
Sample randomizationFull Kontakt requiredFree update for owners
A completely reimagined version of the AizerX SFX Designer Toolkit. The main feature is sample randomization — fully customizable hybrid sound effects designed by Keepforest.
Like all the previous releases, the Keepforest team went from the recording of source materials to the finished product, so that composers have a cinematic sound library of the highest quality in hand.
Inside the Instrument
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01 / 02The SFX DESIGNER — layered sound construction and randomization workflow.

02 / 02The SFX DESIGNER — additional controls for shaping and combining layers.
›
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At a Glance
- 1723 wave samples across 48 playable patches
- Randomization a unique and authentic effect from one click
- Hits & Elements thirteen sub-categories of impact material
- Whooshes and Transitions fourteen sub-categories of movement
- Braams, Signals and Downers twenty-one sub-categories of tone
- Version 2.0 refined engine, new interface, remastered samples
Content & Detail
01What Is New in v2.0the update▾
EngineRefined and optimized AizerX engine for stable and smooth workflow
InterfaceRedesigned minimalistic modern interface
ContentRemastered samples and new content added
StretchingNew stretching feature for playable instruments
Classic patchesAdded alongside the new ones
Price of the updateFree for owners of the old version — re-downloading the library is required
02Hits & Elements13 categories▾
Trailer Hits29
Organic Classic Hits47
Organic Soft Hits16
Hybrid Hits43
Short Hits27
Punch + Tail37
Kicks39
Booms61
Body Booms28
Reverb Tails47
RR Reverb Tails 254
Transients47
Transients 247
03Whooshes & Transitions14 categories▾
Trailer Whooshes32
Organic Whooshes43
Organic Whooshes Part 242
Modern Whooshes51
Hybrid Whooshes37
Transitions — Organic29
Transitions — Metal49
Transitions — Electric6
Transitions — Impact32
Transitions — Insect28
Transitions — Motion Part 148
Transitions — Motion Part 247
Transitions — Voicy8
Transitions — Other31
04Braams, Signals & Downers21 categories▾
Braams — Distorted41
Braams — Distorted Part 241
Braams — Hybrid12
Braams — Specific20
Braams — Tense & Horror27
String FX39
Signals & Pings37
Signals & Pings 237
Signals & Pings 341
Signature60
Ambient Tails15
Atmospheric Part 140
Atmospheric Part 239
Guitar27
Specific 137
Specific 237
Specific 323
High Downers Layers21
Low Downers Layers48
Mid Downers Layers19
Specific Downers Layers34
05Before You Buyrequirements▾
HostThis product requires a FULL version of Native Instruments’ KONTAKT
Randomization is only useful if the pieces were built to be recombined. A folder of finished effects shuffled at random gives you noise; these were designed as layers first, which is why one click produces something usable.