RingsFX 4+

Physical Modelling Resonator


Designed for iPad

    • $8.99



RingsFX is an AUv3 plugin based on the famous Mutable Instruments Rings, one of the most dedicated and fully-featured Physical Modeling Eurorack modules ever created. At its core is a resonator that needs to be 'excited' or 'strummed' by MIDI input, noise, or external audio excitation.

RingsFX emulates vibrations of structures simulated by 3 different synthesis techniques that can be plucked or process external signals: Modal Synthesis, Sympathetic Strings, and Inharmonic Strings. Traditionally, Rings was only monophonic but used a unique approach to polyphony that allowed the previous note to 'ring' out and decay while a new note was played. Rings FX provides these same modes (Mono, Duo, and Quad), but expands it with a true Polyphonic mode. RingsFX also expands the capabilities of the original engine by adding support for velocity sensitivity and MIDI MPE mode.

The new polyphonic mode allows RingsFX to play up to 12 notes of true polyphony, depending on the settings. Doing so requires RingsFX to use multiple Rings resonators, but the more true polyphony you use, the more processing power it requires. Running in the traditional Monophonic, Duophonic, or Quadrophonic modes may be preferred in order to keep CPU usage under control.

RingsFX has 7 modes in total, by combining the 3 basic modes with additional properties such as chords or specially tuned reverbs. The original hardware also had a secret 'Easter Egg' mode, which in RingsFX is simply calling 'Synthesizer' mode, rumoured to be based on one of the early Korg synthesis methods. This mode supported a number of mutable effects which now work on in all resonator modes.

RingsFX also has a Mod-Matrix which allows you to combine the built-in LFOs and FEGs to great effect by manipulating parameters and mutable effects in realtime.

Finally, RingsFX can be loaded as an AUv3 effect plugin. Set the Exciter Source to 'INPUT', and you can pass any audio through RingsFX and use this audio as an external exciter. For example, it can be used to great affect on a drum beat to create some crazy rhythms. Use the Output Mix to combine the original audio with the synthesised resonator output to create some stunning effects.


○ 7 unique synthesis modes.
○ Supports Mono, Duo, Quad and true polyphony.
○ Supports 2 fluid LFO's per note.
○ Up to 4 FEG's per note.
○ External Exciter modes.
○ White noise Pulse Sequencer.
○ Supports 6 mod-able effects and 6 global effects.
○ Mod Matrix
○ Input and white noise filters.
○ Program Manager with drag and drop.
○ Preset Search and Favourites.
○ Easy export and import of banks and presets.
○ Extensive help manual.
○ Web Transfer for backing up to PC/Mac.
○ MPE Support.

What’s New

Version 1.02

V1.02 - B27
Fixes the Cubasis crash when attempting to edit automation recorded using AU parameters.
(Apologies for the delay in finding, verifying and fixing this one).

Ratings and Reviews

4.9 out of 5
12 Ratings

12 Ratings

Endgame14 ,

Another Tool For My Arsenal.

It is pretty interesting.And has some nice presets. I use it in the Aum app and it delivers some great sound mixing possibles. I do use a lot of 4pockets apps. They all help to do make some very superb sound mixing production. THANKS Paul


Another amazing 4pockets app

Loving the sounds, never had the chance to own the hardware glad you made this, thanks!

App Privacy

The developer, 4Pockets.com, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

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  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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