MOTU has released Volta (Mac), a virtual instrument plug-in that turns your audio interface into a voltage-control interface.
According to the manufacturer, you can use Volta to digitally control any hardware device with a control voltage (CV) input, from your choice of audio workstation software, such as MOTU Digital Performer, Apple Logic Pro, Ableton Live, and other AU hosts that support side chain outputs. Volta also works with any MOTU audio interface equipped with TRS outputs. Use Volta to play and automate modulars, analog synthesizers, effects processors, and so forth.
In addition, Volta features 24 control outputs per plug-in instance; sample-accurate MIDI playback with supporting host software; seven different control source types, including MIDI notes, MIDI controller data, and audio track automation, plus tempo-synced sources such as LFOs, clock pulses, and trigger/pattern sequencers; one-click pitch and octave calibration per oscillator using either Hz/V or V/oct tuning standards; and much more.
For more information, please visit motu.com.