Play with light – Theremin I/O turns your iPhone into a touchless music instrument. It uses your camera and flash to measure the distance to your hand, this signal is then processed by a synthesizer to generate a tone.
Features:
• Old-school synthesizer
• Constrain input to scales (harmony quantization)
• 8 sound presets with effect controls
• 50+ scale presets
• Use as a MIDI controller (requires in-app purchase)
• Learn fast with the tutorial overlay
For more information visit http://theremin.io
Version history
1.3
2017-09-27
This app has been updated by Apple to display the Apple Watch app icon.
* Updated for iOS 11
* Network MIDI is now free!
1.1
2014-10-20
Now works in iOS 8!
Other stuff: Option to use new high fps video modes for reduced latency, tweak a couple of sound presets, improved light detection algorithm.
1.0
2013-11-02
Download Theremin I/O on Android and iPhone for free
The sound is pretty authentic, but a real theremin isn't zippered.
Squirrelier Dan,
Sounds
I have no access to change sounds. The bottom shows up for half a second and then goes blank. Where do I change sounds? Pretty cool how it works though. It’s awesome. Just love to have other sounds.
KDKnopp,
Awesome simulation!
The GUI is top notch. Way above other apps that try to mimic the theremin.
Very customizable and well worth the small cost.
††The One And Only Warren Cain††,
Incredibly cool
Functions perfectly! The light sensor functionality is virtually flawless and the sound presets sound beautiful! It's really cool controlling the sound just by moving your hand closer or further away from the iPhone. You can also manually adjust vibrato and delay for added customization. In addition, they give you around 70 unique scales to choose from, and an option to just use the whole keyboard! It's one of my favorite apps!
Geehoober,
Very, very cool.
Not only is it sensitive to your hand motions, but it calibrates well for light conditions. Also, lots of voices and harmonic settings. Very nicely done.
Val79,
Issue with calibration
I checked, and my phone allows this app to use the camera, but it could never calibrate.
redindian75,
Cool gestures
It's a fun little app to experiment with camera gestures like air vox