iVoxel is not only an amazingly sounding vocoder - the unique concept of iVoxel turns this vocoder into a singing machine. iVoxel is a combination of a voice optimized synthesizer and a vocoder. The vocoder part is based on the Matrix vocoder from VirSyn used by many famous artists - one of them the well known german group Kraftwerk. The channel filters used by iVoxel are based on the Sennheiser Vocoder VSM201 resulting in a rich and fat analogue sound characteristic.

The pitch follower and automatic tuning let you sing correct to a selectable scale.

You can use iVoxel in many different ways:

As a realtime vocoder talking into the microphone while playing tunes on the keyboard. The sound character of your voice can be changed in many different aspects like pitch, gender or breath noise. Use it to sing over your favorite iTunes song !

Record the analyzed spectrum of phrases and words from your own voice. Then use this voxel to play with your own voice on the keyboard or with the build in sequencer. Nearly 300 hundred prerecorded voxels are already included.

iVoxel is Audiobus compatible and can be used in the Input, Filter and Output slots in the Audiobus signal chain. The carrier signal and the vocal signal can now be fed by any Audiobus compatible Apps.

The output of your creations can be recorded to an audio file which you
can use with other Apps and programs for further processing.


• Realtime analysis/resynthesis of your voice
• 20+2 Channel vocoder
• Pitch Follower and automatic tuning correction to selectable scale
• Realtime pitch to MIDI Note converter
• Voice spectrum recorder (voxels)
• Nearly 300 prerecorded voxels included
• Play your vocoded voice live on keyboard. Drag for slides and vibrato. 
• Polyphonic sequencer for notes & lyrics
• Voice optimized polyphonic synthesizer with up to 64 analog waves
• Time warping of voxels
• Gender changer
• Breath noise
• Pitch vibrato with delay
• Hi-end Reverb and Chorus/Delay effects
• Export/Import of projects and voxels
• Export of audio recordings
• Upload recordings to SoundCloud
• Copy audio recordings to Clipboard
• Virtual MIDI and Background audio
• flexible MIDI control for Gender and Vibrato
• compatible to Korg/WIST standard
• CoreMIDI
• Audiobus 2 support (Input/Filter/Output) with state saving (requires iOS 7 or newer)

What's New

Version 2.9.2

- Fixed broken sound on iPhone 6s / 7

Ratings and Reviews

Has potential but problematic


There really is a lot of potential with this interesting app but for me it has been rendered pretty useless by some problem which I have not been able to get to the bottom of.

When I first downloaded it I was able to record new custom voxels which is what a lot of people will use this app for. Some weeks later I came back to it and this same task became impossible, all I got was interference. I communicated this issue to the developers in detail including a video of the issue trying to step through all the things it could be, whether software or hardware. As well meaning as they were with their responses, to be honest I got nowhere at all as I only really got answers to questions I hadn't actually asked.

So potential yes but no substitute for actual usability, it is not a cheap application and it doesn't actually work for me the way I need it to work and it looks more like a software issue than a hardware one.



I can't believe the vocoder (iVoxel) on my iPad 2 is better than any of the plugins currently running on my DAW on my studio computer!

Being honest, until buying this, and Addictive Synth also made by VirSyn, I always felt they were an "almost there" company - not quite up to par against companies like Gforce (Imposcar, Oddity) or Arturia (MinimoogV). They seem to have found their feet on this platform and both their products really shine and have something to offer to musicians who use only IOS devices or a combination of IOS and Studio based applications.

The sound quality is staggering - even using the internal mic you can get some extremely useable, and musical results. I can't find anything to fault and the price point is exactly right.



First off I'd like to say this app is great and the best vocoder app for iPad/iPhone/iPod I know it's not cheap but I'd recommend it to anyone who wants a configurable pro quality vocoder app that also let's you use it in real time with a mic as well as add other filters to it and record etc look at the info to see all features and I can not wait for updates hopefully they will add more filters/features keep up the great work and to anyone reading this buy it now you won't be disappointed!

Update iOS 8.0 even after the compatibility fix its still unusable half of the stuff on the right side didn't load/show, its just black, I hope this app gets fixed soon as. It's a great app.


VirSyn Software Synthesizer
59.7 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2017 VirSyn Software Synthesizer


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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