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Wind Synth Plugin by Imoxplus
Respiro 1.2.864 Respiro
Respiro by Imoxplus is a Virtual Instrument Audio Plugin and a Mobile Audio App and a Standalone Application for macOS, Windows and iOS. It functions as an Audio Units Plugin, a VST 3 Plugin and a Standalone Application.
System Requirements
installer does include unofficial VST2.
System Requirements
Inter Application Audio and AUv3
Copy Protection
Online Activation (Challenge / Response)
Important Note
Version 1.2.864 now officially available for registered users. iOS player is freely available on the Apple Store and contains 6 instruments.
My KVR - Groups, Versions, & More
15 KVR members have added Respiro to 7 My KVR groups 20 times.
Not In Your MY KVR Groups
(or group limitation prevents versioning)
+4 in private groups

KVR Rank

Overall: 351   263   348   10

30-Day: 329; 7-Day: 330; Yesterday: 281

Respiro Wind-Synth is a new generation physical-modeling plug-in with an organic feel & sound: reeds, flutes and beyond. Designed to get the best out of your wind-controller (Sylphyo, EWI, WX, NuEVI, Warbl) and supports continuous expression controllers such as Seaboard, Linnstrument etc.

Respiro has been developed in close collaboration with JB-audio and NUSofting (author of Modelonia synth and SaxLab DSP).

The sound-engine has been extended with wavetable generators as of version 1.2.5. These wave-signals are injected into the Physical Model and therefore creating new sonic capabilities.


  • +250 instruments + variations.
  • Automation & MIDI CC mapping.
  • Easy to use interface.
  • Pure physical-modelling synthesis for maximum expression and timbre variations.
  • Wavetable synthesis.
  • No pre-recorded samples used, fast loading.
  • Designed for wind, breath and MPE MIDI controllers.
  • Highly responsive to tonguing and breath pressure.
  • Easy to shift and morph timbres by using automation or CC mapping.
  • MPE (single channel) support.
  • Hi-Resolution pressure input.
  • Load your own Impulse Response reverb.
  • Microtuning support (keyswitches or CC102-113).

Respiro is available as Standalone, AU and VST3 64-bit plugin for macOS and Windows. You can also play your instruments on the iPad/iPhone using the Respiro iOS player.

Please contact IMOXPLUS in case you really require VST2 format.

Many audio demos on the Respiro Website and {See video at top of page}

IMOXPLUS youtube channel.

Video showing Respiro with Linnstrument MPE

Latest User Reviews

Average user rating of 5.00 from 3 reviews

Reviewed By stubbsonic
November 1, 2019

Respiro comes with a wide range of tones. It is very strong at reed-type sounds, but has quite a bit of range with edge-blown flutes, brassy sounds, harmonica and even bass tones. You have a fixed number of "instruments" from the developer (who releases new instruments with subsequent udpates)-- but the selection is good. And, you can create your own variations of sounds using the "Macro" controls.

As of this release the included sounds aren't organized very well, but there are user tags that allow you access a sorted list. You can also edit the response, timbre and other qualities of the sound to create your own "variants" of the original sound. It is versatile, especially with regard to controls. The mod matrix is excellent. It also has a great reverb, compressor, vibrato & tremolo, and other important expressive features that sound very musical. There is a micro-tuning feature that allows you to tune the 12 notes of equal temperament for one octave (repeating octaves).

There are very few woodwind modeling synths out there. Reaktor's Silverwood, is one example of a synth that tries to replicate a specific real woodwind instrument. Where Respiro doesn't strive to emulate a specific woodwind instrument, it is more aimed at creating a diverse set of new yet real-sounding expressive instruments.

I've really enjoyed getting to know this amazing sounding virtual wind instrument collection!.

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Reviewed By kgbmmt
October 13, 2019

An outstanding piece of software from a developer that oozes passion for wind synthesis from every pore in his body! Developers like Rudy need every bit of support and encouragement (financial too!) they can get if the wind playing fraternity are going to benefit from being able to move away from old technologies and immerse themselves in the fruits of superior processing power that we now have at our disposal. I'm in no way affiliated with the developer and wish there were many more like Imoxplus that strive to respond so quickly to the needs and suggestions of their followers with such enthusiasm.

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Reviewed By gonzomaster
June 14, 2019

I like this Respiro. The idea to combine several wind instruments to create new sounds, is great. Some of these new instruments sound really good. With a wind controller (or another MIDI controller), you have great control over many parameters. Last, but not least, the developer is a nice guy who reacts to comments and improvement-ideas (There is also a forum on the imoxplus-page).

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Comments & Discussion for Imoxplus Respiro

Discussion: Active
20 June 2020 at 3:36pm

Does Respiro work with/support the Roland AE-10 Aerophone ?

21 June 2020 at 7:18am

Respiro is specially designed for MIDI controllers that send pressure information. The AE-10 does work perfectly with Respiro.
Respiro runs on a computer (Mac or Win). All you need to do is to connect your AE to the computer. See video on how to setup.

Feel free to contact me on skype for more questions (my skype name: Imoxplus).


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