Esoteric Synth is a unusual generator of synthetic sound events.
The synthesis is based on 5 oscillators which are intersected through an multiple amplitude modulation and multiple frequency modulation making an high sound variability
The sound events can be controlled in two ways:
EventMode (High Duration and Low Density)
GrainMode (Low Duration and High Density)
This App is suitable to generate complex sound textures, glitches,noises, sound clouds, sound drones, point sounds and more.

- AUv3 Audio Units Generator
- Audiobus 3 Generator
- Inter-App Audio Generator
- 5 oscillators
- Multiple Amplitude Modulation
- Multiple Frequency Modulation
- Amplitude Modulation Inverse
- Frequency Modulation Inverse
- Duration and Density control
- Amplitude and Frequency General Control
- Frequency Rescaling
- Geometric and Harmonic Control
- Geometric and Harmonic Control in Frequency Modulation
- Randomic control on Amplitude and Frequency

What’s New

Version 1.3

- New Presets
- New Presets View in Audio Unit
- Fixed Issue Frequency Modulation

Ratings and Reviews

4.6 out of 5
9 Ratings

9 Ratings

Oceans in space ,

Drone intricate mayhem horror meditation

Love, death and all spectrums in this insanely detailed drone monster. I am pretty sure you can either summon demons or praise angels with this thing, haha but really it’s crazy.

Unhappy 1114 ,

Good APP Major Bugs that Should Have Caught In Beta

I hope the dev see this and takes action. Once they do I will gladly upgrade my review to 5 stars.

First I am disappointed that there is no init patch. Just having the app start at init is not enough. I shouldn’t have to reload the app just to return to init if I want.

Second the app will not allow me to scroll down on the presets menu. I can see that there are other presets, but it always bounces back and won’t let me select them.

Developer Response ,

In version 1.2.2 I updated scroll down system preset in auv3. Do you have same problem in standalone version? If yes, could you send me an image or video?

Patch init is Simple Texture in preset system.

Thanks for your advice.

Eriptron ,

Not designed for the faint of heart.

I like to consider myself a somewhat experienced synthesist but getting the sounds I’m after using EsotericSynth have been challenging. Don’t get me wrong. I’ve gotten some pretty interesting sounds out of EsotericSynth. Just not what I intended. This app, it maybe best for a novice to synthesis to pass on.

The manual needs to be fleshed out because there are so many ‘how does this affect EsotericSynth’ features versus conventional synths. Like the Amplitude and Frequency Mixers. Some controls need graduations added.
AM/AM Inv, FM/FM Inv, all the Envelopes, And all Random knobs, for example. Under Oscillator/Frequency Oscillator control’s description is not in English.

It’s very difficult to make exact settings with EsotericSynth.

Saving feature needs SERIOUS work. NEVER overwrite a preset w/o asking first. Never! I lost a preset that I’ll never figure out again because my knuckle accidentally touched a preset name before my index finger touched Save. I was not happy about that. The current preset name should always default into the Preset Name text entry field. Don’t make us retype it when you save incremental changes to a default preset.

I’m still getting my head around the signal flow versus the layout for EsotericSynth. It would be nice to have a quick, single de-tune control feature for the 5 oscillators with a spread feature, in addition to the manually de-tuning each of the 5 synths, which gives precise control.

I like what I see and hear and I am excited about the ambient music, soundscapes and drones to be had with EsotericSynth. Good job thinking outside the box!


26.8 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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