Poltergeist
Key Features
- Fractal-style phasing engine for unusual modulation, depth, and animated tone shifts
- Multi-stage signal path with Dr, P, Tx, C/a, and C/b sections for layered movement
- Parallel C stages for delay-like modulation, feedback, doubling, and slowly evolving textures
- Texture stage with oscillator, stereo, feedback, and feedback texture controls for wider or sharper results
- Dry/wet Mix and output gain controls for return-track sound design or more restrained insert use
- Preset and preset-pack support for saving and sharing experimental settings
- Code-signed Windows installer and notarized macOS universal installer
Description
Poltergeist is an experimental modulation effect built around fractal-like phasing patterns, turning incoming audio into animated depth, metallic feedback, warped echoes, and wide stereo motion. It works less like a standard chorus or phaser and more like a performable sound-design processor for producers who want movement that can shift from subtle texture to unstable transformation.
Its signal path is organized into multiple interacting stages: Dr stretches and feeds the signal, P drives phase movement, the parallel C stages add delay modulation and feedback complexity, and Tx colors the result with oscillator, stereo, feedback, and texture controls. The official guide suggests starting with conservative settings, using the Mix control for return-style effects, and treating feedback-heavy patches with care.
That makes Poltergeist strongest on synths, guitars, drums, vocals, and transition effects where unusual motion is the point. It can imitate familiar modulation, delay, reverb, and doubling behaviors, but its real appeal is in evolving patterns, resonant swirls, and short automation moves that make a section feel less static.
EffectiveFX currently lists Poltergeist version 1.0.2 for macOS and Windows, with AU and VST3 support depending on platform. The product page provides free installers and an optional paid ad-free route, while activation uses an accessible email confirmation step.
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Frequently Asked Questions
What kind of effect is Poltergeist?
Poltergeist is a creative modulation and phasing effect rather than a conventional chorus, flanger, delay, or reverb. Its stages interact to create anything from subtle movement to feedback-heavy, evolving sound design.
Does Poltergeist require an email address?
Yes. EffectiveFX documents that downloads and plugin activation use an accessible email address, with a confirmation code sent during activation.
Can Poltergeist be used on normal mixing tasks?
It can be used subtly for texture, width, and movement, especially with the Mix control kept low. The plugin is still most useful when you want a creative modulation character rather than transparent mix processing.
What is the optional ad-free version?
The main Poltergeist page lists free Windows and macOS installers as well as a $5 ad-free option. The free route remains available on the developer page, so SSA should route users to that product page instead of mirroring installer files.
