AizerX – Trailer SFX Designer Toolkit by KeepForest Review

  • By: Thorsten Meyer
  • Date: Thursday, 17 October 2019
  • Time to read: 3 min.

AizerX – Trailer SFX Designer Toolkit

by KeepForest Review

AIZERX – TRAILER SFX DESIGNER TOOLKIT equips the composer who is submitting for trailer composition jobs on a regular base, and it generates revenue in the “composing for a trailer” or games business.

The typical business model for the composer is that you pitch your services. Be awarded the business and then you need to produce quick results. For the next trailer job, you should get on average 5k as your payment against your time spend and resources used. You need to have that in mind when you look into purchasing this library. The AizerX Trailer SFX Designer Toolkit library is aiming for those composers who are expected to turn around a new score for a trailer within days, rarely weeks.

AizerX – Trailer SFX Designer Toolkit

KeepForest was born out of friendship, built around of Arseni Khodzin (composer & sound designer) and Evgeny Emelyanov (composer & programmer). Their mission is creating audio tools for contemporary composers and sound designers. KeepForest did send a review copy of both libraries with no strings attached.


You receive after purchasing the codes that you use in the connect app to download the library. The full and commercial version of Native Instruments Kontakt 5.8 is required.
There are also WAV files included which you can easily drag into your DAW.

AizerX Download

Sound Design basics

If you are looking to enhance your sound design take a look at the Evenant courses that cover also working on Trailer. You can use this affiliate link to learn more about them.


AizerX – Trailer SFX Designer Toolkit was designed for “old school” typical high-quality trailer hybrid music. It mirrors the latest trends in the trailer music industry in early 2018.

AizerX – Trailer SFX Designer Toolkit Patch

AizerX Trailer SFX Designer Toolkit

AizerX – Trailer SFX Designer Toolkit is a high-grade tool for building robust, Hollywood-level sound effects for your score and sound effects without the need to know much about professional sound design.

It includes:

  • Low & Mid Braams, Signals, Pre-Whooshes + Hits, Motions
  • Alarms, Downers, Benders, Pre-whoosh and Transitions, Signals, Specific Layers, Bends, Noises

User interface & Usability

The design has evolved from the previous libraries and is usable. There is a version included that has less animation which is fabulous to reduce some resources used by graphics while you compose.

The UI supports you in selecting new combinations of sounds based on four elements that are leveled by the X/Y pad in the middle. The pad movement can be recorded in your DAW. Many presets do include backed in X/Y Pad movements.

AizerX – Trailer SFX Designer Toolkit

In each of the two libraries, there are additional sound layers you can mix in. Adjusting the start and endpoints are fully supported, and the operations of those features are straightforward.

KeepForest developed a smart sample randomization. This feature is vital to support you in generating wholly different and actual sound effects.

AizerX FX

There are plenty of presets included, and you can specify which kind of effects the random function pull into the mix. You can create your own presets, several User Presets included and worth a look or two. You can share your creations with other owners of the library. Check out the user presets, others did already come up with fabulous works.

Rating:  Five out of five stars

AizerX – Trailer SFX Designer Toolkit is geared towards the professional composer who composes to picture or needs to finish under much more time constrain their latest trailer project. Both libraries include many elements that are glued together by a current Interface ready for you to launch in several of your next productions. The library is a good investment for professionals who expect a low ROI.

Trailer SFX Designer Toolkit is excellent if your work on Trailer projects or tasks for sound effects in a scene.

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