Physion - Eventide Audio

Notice: A new version of Physion is available here.

The Ultimate Creative Tool

Physion is the first plug-in to use our ground-breaking Structural Effects technology — A new method for processing audio. With Physion, you can split a sound into its transient and tonal parts, independently manipulate them using Eventide’s world-class effects and then fuse them back together. With the ability to add effects and dynamic controls to the transient and tonal sections, you can produce a wide range of sounds, from the subtle to the extreme.

Learn more about Structural Effects

Countless Applications

Physion sound design plugin

Sound Design

Physion is a versatile tool for sound designers. Splitting and manipulating audio allow you to create and explore sounds never heard before. Remove transients from pianos or guitars to create bowed sounds, or go even further by adding extreme effects to the independent channels.

Retune congas with Physion

Drum Tuning

Physion allows you to easily re-tune a drum without affecting the transient. Delay the cracking transient of a rimshot while leaving the tonal ring as-is. Solo out the transients to tighten up a sound and add some compression to tighten further.

Physion for vocals


Physion’s structural split can be used to modify vocals in subtle or drastic ways. Emphasize or reduce sibilance, add or remove resonance, or turn robust vocals into whispers.

Physion for transient design

Transient Shaping

Physion is not a traditional transient shaper — it’s a transient separator. It goes beyond what has been possible by allowing you to surgically tune the transient and tonal response independently.

Audio Restoration Picture

Audio Restoration

Remove any unwanted tonal ring and hiss, or just reduce it with compression/expansion. Beef up the transients from old instrumental recordings to improve presence in a mix without squashing the life out of the tonal material.  

Picture of Loop Mangling with Physion

Loop Mangling

Use various instances of Physion to morph and transform your loops using independent tonal and transient delays.

Bonus Offer

Eventide customers get FREE access to top-notch video tutorials created exclusively for Physion by our friends at Groove3! 

Visit Groove3 to learn more.

Bonus Offer

Eventide customers get FREE access to top-notch video tutorials created exclusively for Physion by our friends at Groove3! 

Visit Groove3 to learn more.

Explore the Split


SMOOTHING controls the speed of the decision-making process, preventing it from making too fast a decision either way. This is useful for trimming out unwanted transient chirps or smoothing rough transitions.

Transient Decay

Turning up TRANSIENT DECAY preserves energy in the transient stream, further thickening up the transient tail as well as increasing the auto-swell on the tonal stream.


Adjust the FOCUS control to ‘fine tune’ the parsing of the sound based on contextual and musical desires. FOCUS forces the method to favor one stream over the other. Sliding FOCUS toward tonal will result in a more staccato transient stream. Sliding FOCUS toward transient will result in heavier transient tails along with tonal auto-swell. Extreme settings will push the entire signal to either the transient or tonal stream. The FOCUS control can be used to make subtle modifications like de-essing, de-reverberating, or reducing pick noise by adjusting transient and tonal gain.

Source Type

Selecting SOURCE TYPE sets the under-the-hood expert tunings that prime the analysis and decider for a natural sounding split of a given source.

Explore the Effects

Six Transient Effects

  • Delay — A standard Delay echo effect with Tempo Sync capability and low and high-cut filtering
  • Tap Delay — A multi-tap delay-line with Tempo Sync capability. Useful for rhythmic delays, wacky comb filtering, volume swells, or unique reverberant sounds.
  • Dynamics — A combined Compressor/Limiter and Expander/Gate (function is determined by Ratio control)
  • Phaser — A classic multi-stage allpass based Phaser effect, which can be controlled via LFO or Envelope
  • Reverb — A room Reverb designed with high echo density, imparting a fast and smooth build-up of reflections. This pairs nicely with transient sounds to create a sense of space without obvious echo slap back.
  • Gate + EQ — A Gate followed by a 3-band overdrive-able EQ

Seven Tonal Effects

  • Compressor — A standard Compressor/Limiter
  • Chorus — Multi-voiced chorus with randomized modulation
  • EQ — A 3-band overdrive-able EQ
  • Delay — A standard Delay echo effect with Tempo Sync capability, modulation, and low and high-cut filtering
  • Reverb — A large space Reverb designed with lower echo density (compared to Transient Reverb) and targeted high modal density with little to no modulation to avoid a chorusing sound on the tails. This allows the tonal audio to breathe in the space, yet evolve into dense pad-like reverberant tails.
  • PitchShift — A 3-voice Pitch Shifter with +/- 1 octave shift per voice and an overall fine tuning control. Useful for retuning drums, creating harmonies, or micropitch chorusing/double-tracking all without transient slap back or smearing.
  • Tremolo — A standard Tremolo effect which is driven by an LFO in (optional) combination with the Envelope of the plug-in’s input


A new frontier in plug-ins.

Apart from opening a new frontier in plug-ins, its strength is that it encourages an approach that blurs the line between practical and creative sound design applications.

Mark Smith
Resident Advisor

Perfect tool to apply a detailed approach.

Fission [Physion] is the perfect tool to use when you are seeking to apply a more detailed approach to your engineering… It’s an idea that no other company to our knowledge has attempted, and Eventide has executed their idea resulting in the perfect plugin for this case.

Jimmy Byrne
All Things Gear

Physion is a monster.

Fission [Physion] is a monster. You can create delayed pick hits with phased undertones, reverbed plucks with dry-pitched tonal drones, slow bowed-sounding piano notes with tremolo wobble… and the list goes on and on.

Paul Vnuk Jr.
Recording Magazine

Artists Using Physion

Chris Carter
Chris & Cosey, Throbbing Gristle
Glenn Rosenstein
Madonna, U2, Ziggy Marley, Whitney Woerz
Hector Castillo
Joe Chiccarelli
U2, Elton John
John Agnello
Sonic Youth, Dinosaur Jr.
Kaitlyn Aurelia Smith
Richard Devine
Schematic Records
Steve Rosenthal
MARS, The Magic Shop
Steven Williams
Sting, The Rolling Stones, Eric Clapton
Stewart Lerman
Patti Smith, St. Vincent, Boardwalk Empire
Suzanne Ciani
Tony Visconti
Bowie, T. Rex

System Requirements

We recommend you download a 30-day demo to check before buying.
Windows 8+
AAX 64-bit, VST2 64-bit, VST3 64-bit
macOS 10.9+, Intel and Apple Silicon
AAX 64-bit, AU 64-bit, VST2 64-bit, VST3 64-bit
iLok Account Required
No physical dongle necessary


Our plug-ins should work with any compatible DAW. We test against the following:
Pro Tools
Logic Pro
FL Studio
Patented Technology

The Physion product is covered by United States Patent No. 10,430,154.

Buy Now For $179