updated 11:55 pm EDT, Tue April 28, 2009
Volta virtual instrument
MOTU has launched Volta, a virtual instrument plug-in that turns an audio interface into a voltage control interface. Volta is designed for hardware devices with a control voltage (CV) input and can be used with audio workstation software packages such as MOTU Digital Performer, Apple Logic Pro and Ableton Live. The plug-in enable users to perform MIDI sequencing with external modular synths, to automatically calibrate and tune oscillators, and to apply LFOs, step sequencers and pattern sequencers to CV inputs. Volta provides 24 control outputs per plug-in instance, and allows the use of as many instances as needed.
The LFOs, step and pattern sequencers that are applied to CV inputs can also be tempo-synced to the host software timeline. Additional features enable ramp automation in the host audio software to control filters, envelope generators, effects processors and other voltage-controlled external device. Volta offers seven different control source types, such as MIDI notes, MIDI controller data and audio track automation. Lastly, users are able to sync multiple drum machines, arpeggiators and other clock destinations with independent PPQ resolution for each device.
Volta is compatible with Mac OS X 10.4 or higher and is available for purchase from Motu resellers for $250.