What Is reFX Rippler?

reFX Rippler is a hybrid software synthesizer that combines physical/modal modeling and subtractive synthesis to create distinctive electronic and acoustic-inspired sounds.

Rather than relying entirely on conventional oscillator waveforms or sample playback, Rippler places modeled resonators at the center of its sound-generation approach.

This makes it particularly interesting for producers who want something different from a traditional subtractive or wavetable synthesizer.

Why Is Physical Modeling Interesting?

Traditional synthesis usually begins with an oscillator. You choose a waveform, shape it with filters and envelopes, add modulation, and then process the result with effects.

Physical modeling approaches sound from another direction. Instead of only defining the waveform, the synthesis process can simulate the behavior of a resonating structure.

In Rippler, these resonant structures can become the foundation for plucks, bells, percussion, metallic tones, evolving textures, pads, and unusual electronic instruments.

The 12 Acoustic Models

Rippler includes 12 acoustic models representing different types of resonant structures. The official specifications include models based on strings, drumheads, beams, djembe, vibraphone, bells, marimba, membranes, tubes, plates, and related structures.

Dual-Layer Sound Design

Rippler provides two independent synthesis layers, allowing producers to combine different sound sources inside a single instrument.

The layers can be routed through resonators in parallel or serial configurations. This gives you more control over how the different parts of a patch interact.

One layer can provide the initial attack while another adds body, resonance, movement, or a contrasting texture.

Modulation & Mod Mapping

Modulation is an important part of the Rippler workflow. Multiple modulation sources can be connected to different parameters using its drag-and-drop modulation system.

Mod Mapping allows you to shape how a modulation source affects its destination. Instead of relying only on a simple linear response, you can create different response curves for more controlled movement.

Modular Effects Chain

Rippler includes a modular effects system with 13 effects available on the master bus and 12 effects per layer.

Effects can be arranged in different orders, allowing the processing chain to become part of the sound-design process.

Changing the order of distortion, filtering, delay, reverb, and other effects can significantly change the character of the finished patch.

MPE & Aftertouch

Rippler supports MPE and aftertouch, making it suitable for expressive controllers that provide more detailed performance information than standard MIDI note triggering.

This can be particularly useful for expressive leads, evolving pads, cinematic textures, and experimental instruments where performance gestures need to influence individual notes.

Microtuning & MTS Support

Rippler supports alternative tuning through Scala .scl and .kbm files as well as MTS Client.

This allows producers and composers to experiment with tuning systems outside standard twelve-tone equal temperament.

External Audio Input

Rippler can also use external audio as an input source for its resonators.

This creates a different sound-design workflow because your source material does not have to originate inside the synthesizer. Percussion, vocals, field recordings, synthesizers, and other audio can become material for resonator processing.

Manual Mode & Experimental Sound Design

Rippler includes a Manual Mode for creating custom resonator configurations. Snapshot morphing can then be used to move between different configurations.

This gives advanced sound designers another way to explore unusual relationships between resonators rather than relying exclusively on factory models.

Factory Content & Presets

The official reFX specifications list 441 factory sound presets, 32 exciter samples, 10 arpeggiator presets, and 64 LFO shapes.

Who Is Rippler For?

Rippler vs Traditional Synthesizers

Rippler's main attraction is not that it replaces every other synthesizer. Its value is that it provides a different route to sound generation.

System Requirements

Pros & Considerations

Final Verdict

reFX Rippler takes a distinctive approach to synthesis by putting physical/modal modeling and resonators at the center of the instrument while still providing subtractive synthesis features.

Its combination of acoustic models, dual layers, modulation, effects, MPE, alternative tuning, external audio input, and custom resonator configurations gives sound designers several different ways to approach a patch.

If your studio already contains conventional synthesizers and you're looking for a different sound-generation method, Rippler is an interesting instrument to watch. Its resonator-based workflow can move between acoustic-inspired sounds and highly experimental electronic textures.