synthesizer
| Software | Description | OS | License | File Date | Comments | Power |
|---|---|---|---|---|---|---|
| OxyWaveZ Bazzoid v2.25 | Electric bass synthesizer. [VST] | Windows | Shareware | 2004-07-01 | 0 | 45db |
| Out Of Phase 1.3 | A software music synthesis package | Mac | Freeware | 1995-04-01 | 2 | 45db |
| Osiris XT v1.0 | Dual wave file player / synthesizer. [VST] | Windows | Freeware | 2007-04-20 | 0 | 45db |
| Oscillator 1.2.1 | Oscillator is an AudioUnit effect that can modify audio into glitches, sci-fi effects and noises. [AU] | Mac | Demo | 2011-10-20 | 0 | 40db |
| OscillaStation v2.08 | Complete music recording, composing, performing and production system. Supports VST. | Windows | Shareware | 2006-10-20 | 2 | 50db |
| Orz v0.3 alpha | Modular synthesizer. [VST] | Windows | Freeware | 2007-06-10 | 0 | 40db |
| Oresus v1.2 | Synthesizer. [VST] | Windows | Demo | 2011-08-17 | 0 | 45db |
| Opus 8 | 8 channel sinusodial additive VSTi-syntehsizer [VSTi] | Windows | Freeware | 2011-09-10 | 0 | 50db |
| OP-X v2.1 | Recreation of the legendary Oberheim OB-X analog polyphonic synthesizer. [VST] | Windows | Demo | 2008-09-04 | 0 | 35db |
| OP-X Pro II v1.1 | Recreation of the legendary Oberheim OB-X analog polyphonic synthesizer. [VSTi] | Windows | Demo | 2011-09-28 | 0 | 50db |
| OP-X Player v1.0 | Cut-down preset version of OP-X. [VST] | Windows | Demo | 2008-10-23 | 0 | 45db |
| OP-X Free v1.0 | Cut-down preset version of OP-X. [VST] | Windows | Freeware | 2008-10-23 | 0 | 40db |
| OnePingOnly beta 1 | A VST virtual synth | Windows | Freeware | 2003-11-21 | 1 | 45db |
| OnePingOnly beta 1 | A VST virtual synth | Mac | Freeware | 2000-06-01 | 0 | 45db |
| Omnisphere v1.5 | Power Synth combining a wide variety of hybrid realtime synthesis techniques, a library of remarkable ‘Psychoacoustic’ sounds, and many innovative features that have never been seen before in any hardware or software synthesizer. [AU/VSTi/RTAS] | Mac | Paid | 2011-01-24 | 1 | 45db |
| Omnisphere 1.5 | Power Synth combining a wide variety of hybrid realtime synthesis techniques, a library of remarkable ‘Psychoacoustic’ sounds, and many innovative features that have never been seen before in any hardware or software synthesizer. [VSTi/RTAS] | Windows | Paid | 2011-01-24 | 0 | 55db |
| olsynth v1.01 | Classic monophonic synthesizer with a clean and simple interface. Allows virtually infinite sound design possibilities. | iPad | Paid | 2010-08-03 | 0 | 40db |
| Olga v1.02 | Virtual analog synthesizer. [VST] | Windows | Demo | 2009-03-27 | 1 | 50db |
| Olga v1.02 | Virtual analog synthesizer. [VST/AU] | Mac | Demo | 2009-03-27 | 0 | 50db |
| Ogun v1.1.6 | Produces exceptionally rich metallic and shimmering timbres, although it's not limited to this genre. [VSTi/FL Studio] | Windows | Demo | 2011-07-25 | 0 | 50db |
| Octopus 1.3.1 | Dual-Matrix synthesizer. [VST] | Windows | Demo | 2010-11-18 | 0 | 50db |
| Octopus 1.3.1 | Dual-Matrix synthesizer. [AU/VST] | Mac | Shareware | 2010-11-18 | 2 | 50db |
| OctaPlexus v1.0 | VSTi with 8 oscillators and zero user controls. [VST] | Windows | Freeware | 2009-09-14 | 0 | 45db |
| ObjektSynth 2 | A real-time, multi-timbral, modular synthesizer - like a traditional analog synthesizer. | BeOS | Demo | 2000-04-03 | 1 | 45db |
| Obie Editor v1.1 | Patch editor for the Oberheim Matrix 1000 | Mac | Freeware | 2007-07-18 | 4 | 65db |
| nX-Synth 2 v2.20 | Polyphonic 32-voice "Powersaw" synthesizer. [VST] | Windows | Freeware | 2009-10-30 | 2 | 55db |
| NWSynth v1.3 | Virtual analogue synth with smooth sounds and very powerful filters. [VST] | Windows | Demo | 2005-08-19 | 0 | 45db |
| NWSynth v1.3 | Virtual analogue synth with smooth sounds and very powerful filters. [VST] | Mac | Demo | 2005-10-21 | 0 | 40db |
| NWBass v1.1 | Classic mono bassline synth. [VST] | Windows | Freeware | 2006-05-04 | 0 | 50db |
| NWBass v1.1 | Classic mono bassline synth. [VST] | Mac | Freeware | 2006-05-18 | 0 | 55db |
