MATRIXSYNTH: GForce Introduces the OB-E - Virtual Oberheim 8-Voice Software Synthesizer

Tuesday, February 23, 2021

GForce Introduces the OB-E - Virtual Oberheim 8-Voice Software Synthesizer

Be sure to see this previous demo.

OB-E Tutorials

GForce Software - OB-E - Oberheim 8 Voice - One Synth Track.

video by GEOSynths

"OB-E is our take on the legendary 8-Voice. More than just an emulation, OB-E offers a unique musical experience. Sounding HUGE, it takes the iconic Synthesiser Expander Module based 8-Voice (a.k.a the EVS) into new sonic territory via a raft of enhancements and additions.

The concept of the 8-Voice is actually very simple; based around a single Module containing two VCOs with Pulse and Sawtooth waveforms, two ADS Envelope Generators, one LFO, and a magical Multi-Mode Filter. In isolation eac Module is monophonic, but in the 8-Voice, because there are eight Modules triggered by a polyphonic keyboard, you have a superb eight note polyphonic synthesizer.

While simple at heart, OB-E is, to our knowledge, the first virtual instrument with complete per-voice control. This unique Octaphonic architecture offers fresh and exciting creative possibilities to music producers, composers and sound designers for the first time in the digital realm.

We’ve painstakingly emulated every section of the synth to create an authentic sounding instrument with the convenience of software control over those eight modules. Mono, Poly, Unison, Split, it’s all yours now. Add to this a new third oscillator that doubles as LFO, a new LFO per voice, and a stack of additional performance controls via velocity, polyphonic aftertouch and MPE control and you’ll begin to understand the depth of musical possibilities OB-E provides.

Programming a polyphonic Patch on an original 8-Voice was a daunting mission, OB-E makes it a cinch. Unison Chords a forté. To overcome the arduous task of editing 8 individual modules, OB-E provides a number of clearly-thought out editing controls such as Zoom which zooms on a specific module and its rear panel, Group (shown above) which enables a Synthesizer Expander Module parameter change to be applied to all Modules at once, and Offset modes as well as a resizable user interface. While it possible to save OB-E preset, it is also possible to save and reload each single Module as a preset, copy-paste them in between each Module or lock a Module to prevent changes from being applied to it (even when loading a new patch)

And that’s not all! With the original MS-1 sequencer as a starting reference point, we’ve added an extremely comprehensive and creative 8-step Sequencer (shown on the right above) providing a flexibility and fun-factor unavailable via the original hardware. In keyboard Split mode with the Sequencer routed to Module 8, OB-E provides the ability to create a complete three part soundscape from a single Patch. An all-new routable Stereo Delay provides sonically complimentary effects.

Finally, we’ve complemented our instrument with 600+ factory patches designed by Dave Spiers and a roster of brilliant sound designers. Even better, each patch has been tagged, categorised and is quickly accessible from OB-E’s librarian (arrow navigation friendly)."

You can find additional details at

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