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Numerical Audio releases VOLT - Expressive MIDI Synthesizer

Numerical Audio

Numerical Audio has released VOLT, a polyphonic MIDI synthesizer with special focus on expression for iOS.

Being centered around expression, VOLT was built with multidimensional polyphonic expression (MPE) in mind and supports all ROLI products as well as other MPE compatible devices out of the box.

Great care has been taken to craft a simple user interface taking design cues from real hardware to, seeking to create a enjoyable and easy to use experience while providing just the right amount of control to enable a wide variety of timbres and sounds without overwhelming the player.

With a factory bank of more than 100 expressive presets grouped in categories ranging from soaring Leads over swelling Pads to rhythmic Sequences, VOLT is said to be a joy to play.


  • Polyphonic Virtual Analog Synthesizer.
  • Expressive synth engine with MPE, poly-, channel aftertouch & 2D touch keyboard.
  • Built-in stereo effects.
  • 100+ fine tuned factory presets.
  • Standalone operation with support for USB audio interfaces, wired, network & Bluetooth MIDI.
  • MIDI remote control & tempo sync.
  • Audio Unit v3 Extension.
  • Inter App Audio support.
  • Audiobus support.
  • Ableton Link.


  • iOS9+.
  • Apple iPad 4 or newer.

Price: $8.99 on the Apple AppStore.



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