iPad Screenshots


Quanta is a six-voice granular synthesizer for iOS11+ in both standalone (with Inter-App Audio) and AudioUnit V3 formats. Quanta for iPad is fully compatible with the full version of Quanta for macOS and Windows; visit audiodamage.com for a PDF manual, audio samples, and video demonstrations.

Quanta will work on any iPad that can run iOS 11, but keep in mind that it is a feature-heavy desktop quality synthesizer, and would prefer a 2017/2018 iPad, or an iPad Pro. If you're experiencing CPU issues on lower-end machines with the standalone, try changing the main display to FEG or FLFO, which don't require redrawing and which will be significantly lower in CPU usage.

>> Multi-Format Sample Loader
Quanta can load AIFF, WAV, Broadcast WAV, FLAC, MP3, and Ogg in any sample rate, bit depth, and channel configuration.

>> Grain Engine
Up to 100 simultaneous grains per voice, of up to 1 second long, with control over grain rate, pitch, direction, shape, length, panning, source position, and level.

>> Sidecar Oscillator
Continuously variable wave shape, with pulse width modulation, and independent control over pitch (separate from grain engine.) Can be injected directly into grain engine.

>> Noise Source
Noise source features a "color" control that affects tonal characteristics of the noise. Can be injected directly into grain engine.

>> Dual Multi-Mode Filters
Filters can be used in serial or parallel modes, and include lowpass, highpass, bandpass, and notch in 2-pole and 4-pole configurations.

>> Flexible Envelope Generator (FEG) x 4
The four FEGs are arbitrary function generators, with up to 99 steps, curve and step level control, arbitrary loop points, and host tempo sync.

>> Flexible Low-Frequency Oscillator (FLFO) x 2
The pair of FLFOs utilize four controls (phase, shape, skew, and warp) to access a virtually limitless palette of waveforms, and feature host tempo sync and retrigger.

>> Sample And Hold
The S&H mod source can sample noise (random) or any of the other mod sources, at either a user-defined rate or a musical division.

>> Modulation Matrix
Every mod and MIDI source can be easily and simply assigned to any destination using the quick-access bi-polar modulation matrix. Touch a destination on the UI and the matrix automatically scrolls to the correct row.

>> Tuning Tables And Global Tuning Offset
Re-tune Quanta to new intonations and temperaments using the open-source and easy-to-use TUN file format. A global tuning offset (default to A=440) allows you to easily retune the entire synth to match a different A frequency without using a tuning table.

>> MPE (MIDI Polyphonic Expression)
Quanta understands both "legacy" MIDI and MPE. Use your Linnstrument, Roli controller, Haken Continuum, or Madrona Labs Soundplane (among others) to directly access per-note pressure, pitch bend, and modulation.

>> Per-Instance Settings
Quanta utilizes a per-instance customization method: set MPE mode, aftertouch smoothing, pitch bend range override, tuning table, and global tuning offset for each instance in your AUv3 host.

>> Factory Presets
Quanta comes with a substantial collection of factory content, including Designer Presets from Marcus Fisher, Joseph Fraioli, Chris Carter, and Richard Devine.

>> Cross-Platform Preset Format
Quanta utilizes an XML-based preset manager, and stores the sample within the preset for easy asset management. Work between multiple systems without troubles, make a preset on your desktop machine and paste it to the iOS version with Handoff or vice-versa, easily share your creations with your friends, or make a preset bundle to sell, no asset management required.

>> Fully Resizable Retina GUI
Quanta's vector-based GUI is resolution-agnostic, and displays the same on every system and resolution. Easily resize the UI (per instance) to match your visual needs, from postage stamp to poster-sized.

What’s New

Version 1.1.10


New: This is "old," really. We have added the sample preview button back in. It is now on the front panel, and is a toggle switch with a "play" icon, immediately to the right of the sample clear button. We've also moved these buttons a little further apart, mainly to account for sausage fingers in iOS.


> Glitchy FEG operation when tempo synced has been fixed.

> In the "short" panel view in iOS Garageband, on the larger devices (11" and 12.9") the panel wasn't entirely filled with the background color. This has been fixed.

> Various bug fixes, improvements, and optimizations

Ratings and Reviews

4.4 out of 5
56 Ratings

56 Ratings

lofidelityrockr ,

Usually I have nothing but trouble to report...

I am finally satisfied with a granular app that works and sounds good. I especially liked the email that went out this morning from Audio Damage telling me about the free Soundpacks I could get to load into the app. They sound great and I take back some of my gripes I have using your apps... just some since I still have unresolved issues with the other apps I emailed the Dev about.

I highly recommend you get this app even if you are running the other granulars out there. It helps to have options and more range in your musical toolbox.

metik2009 ,

Amazing before it explodes

I’m not one typically to write reviews about an app, but I’m hoping someone will read this and it will save them from experiencing the same headache I’ve had with this app. I want to preface this by saying this synth is an AWESOME granular synth, it has great modulation built in and the sound quality is comparable to some of the $300+ plug ins they make for desktop computers. That’s not the issue with the program.

The problem is stability. I’ve been using it as auv3 in BeatMaker and have experienced it crashing EVERY time I have it in a project I’m working on. To make matters worse, it doesn’t just crash BeatMaker - it corrupts whatever project I loaded it in to, leaving the project destroyed. I’ve lost weeks of work from this app, which is heartbreaking because I’ve really enjoyed it when it’s working.

I really hope this is addressed in future updates because the app is unusable for me in this state, but I’m still giving it 3 stars for the things it does do.

skiphunt ,

Well designed and sophisticated granular sound design!

I bought it last night and like it a lot.

Haven’t watched any of the demo videos at all, but was able to get going quickly making my own sounds. Import of my samples was easy and straight forward.

Figured out half the app on my own without manual, tutorial or demo in less than an hour.

Downloaded the factory preset samples that are all magnificent. Seeing how they were made, ie. their settings... got me another 25% more knowledgeable of the app within another half hour or so. Getting to the last 25% of depth with take a bit more time of exploring.

Overall, excellent UI design and very intuitive.

I wish there were a way to see what your adjustments are doing to the visual pane the has the grain/wave thing while you’re making adjustments instead of having to switch back and forth.

Well designed and sophisticated granular sound design app that’s easy to figure out without too much effort.

It reminds me of the high level of hardcore sound design capabilities inherent in Igor’s superb Soundscaper synth, but easier to grasp the UI.

Would buy this one again in a heartbeat.

App Privacy

The developer, Audio Damage, Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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