OP-X Free

OP-X Free free software-synthesizer by SonicProjects

OPX Free is a free software synthesizer modeled after the Oberheim hardware synthesizer, developed by SonicProjects. Available as VST for Windows.

OP-X Free is a cut down preset version of OP-X offering a small set of selected original OP-X sounds for free use. OP-X Free has got the same basic engine as OP-X while only giving access to a few parameters on a cut-down user interface.

OP-X Free can’t load any further OP-X patches and does not offer automation or MIDI remote control. However, it can be upgraded to OP-X Player, which contains the full OP-X patches library as well as automation and MIDI remote control.

Features:

  • A small set of selected original OP-X sounds.
  • Separate Voice Design (SVD).
  • Comprehensive detuning options.
  • Tunable: Oscillators, Filters, Envelopes, Portamento times.
  • Spread knob for unison and polyphonic mode.
  • SEM-Filter emulation.
  • Polyphonic portamento.
  • Individual voice pans.
  • Direct upgrade knob.
Made with SynthEdit

http://www.sonicprojects.ch/

Omaha

Omaha free software-synthesizer by Kriminal

Omaha is a free software synthesizer developed by Kriminal. Available format(s): VST for Windows.

Omaha is virtual analogue synth. It was inspired by the Yamaha CS-5.

Features.

  • 1 VCO (saw/pulse) plus white noise generator.
  • PWM.
  • 1 LFO (high speed) – sine/saw/S+H.
  • VCF – 12dB LP/HP 6dB BP.
  • VCA – ADSR.
  • 21 banks of presets.
Made with SynthEdit

http://homepage.ntlworld.com/lisa.millington/

OM

OM free software-synthesizer by Softrave

OM is a free software synthesizer developed by Softrave. Available format(s): VST for Windows.

OM synth is for Trance, Rave and Techno. It’s really aggressive and buzzing.

Made with SynthEdit

http://www.tikov.com/softrave/softrave.htm

Oktagon

Oktagon free software-synthesizer by Kriminal

Oktagon is a free software synthesizer developed by Kriminal. Available format(s): VST for Windows.

Features:

  • 8 VCOs, each with independent control over tune/pan/gain.
  • Saw/Ramp/Tri/Pulse Waveforms (Global).
  • PWM – LFO/Manual.
  • Filter Freq LFO.
  • Pitch/Amp LFO.
  • LP12/LP24/HP/BP/BR Filter.
  • Separate ADSR for AMP and ENV.
  • Poly/Mono (with Portamento).
  • Global Tune (octave) and Gain.
Made with SynthEdit

http://homepage.ntlworld.com/lisa.millington/

Oddy-Free

Oddy-Free free software-synthesizer by Roberson Audio Synthesizers

Oddy-Free is a free software synthesizer developed by Roberson Audio Synthesizers. Available format(s): VST for Windows.

Oddy-Free is an emulation of an Arp Odyssey Mk.II – much attention to detail was given in the layout of the signal path to have it behave as accurately as possible. It does have just a touch more umph than most originals would – this particular emulation was based on the “illegal” filter versions based on Moog’s -24dB Low-Pass filter, so it sounds quite a bit smoother and richer but at the same it can produce the harsh metallic tones known from the Odyssey.

KVRDC07

Made with SynthEdit

http://www.robersonaudio.com

Oberom

Oberom free software-synthesizer by SampleScience

Oberom is a free software synthesizer developed by SampleScience. Available format(s): VST, VST3, Audio Unit for Windows 64b, macOS.

Oberom is a sampled version of Oberon by Land of Cockaigne, a VST plugin that is an attempt to imitate the classic analog polysynths. With its thick 2-pole dual filter, it’s sound is reminiscent of the Arp 2600.

Oberom comes with the original 16 sounds. They have been sampled to be faithful copies of the presets that came with Oberon. Oberom is a must-have if you produce synthwave, synth-pop, vaporwave, and any other 80s influenced genres.

Best of all, Oberom will be forever free!

Features:

  • 16 sounds.
  • Amplitude ADSR.
  • Reverb.
  • Multi-LFO.
  • Multi-Filter.
  • Poly, mono, and legato voice modes.
  • Glide.

Tutorials:

Requirements:

  • Compatible with Windows 7 and up or macOS High Sierra and up.
  • The plugin requires 544 MB of HD space.
  • Windows VST plugins in both 32-bit and 64-bit format.
  • Windows VST3 in 64-bit format only.
  • macOS High Sierra and up VST, VST3 and AU plugins format.
  • Compatible with the most popular DAWs on the market: Ableton Live, Cockos Reaper, Steinberg Cubase, FL Studio, Traktion, Mixcraft, Sony Acid, Presonus Studio One, Cakewalk Sonar, and Apple’s Logic Pro.

http://www.samplescience.ca/

Numb

Numb free software-synthesizer by Electra Autentica Productions

Numb is a free software synthesizer developed by Electra Autentica Productions. Available format(s): VST for Windows.

Features:

  • One oscillator (sin, saw, triangle, pulse, white noise, etc.).
  • Two ADSR VCA envelopes.
Made with SynthEdit

http://www.electra-autentica.nl/

NuCLeoDoM

NuCLeoDoM free software-synthesizer by Tekky Synths

NuCLeoDoM is a free software synthesizer developed by Tekky Synths. Available format(s): VST for Windows.

NuCLeoDoM offers “sequencing, shaping, phasing and distorting at the sound core, for cutting thru rhythmic and driving synth lines”.

Made with SynthMaker

http://tektoog.zapto.org/

Noisybox

Noisybox free software-synthesizer by Softrave

Noisybox is a free software synthesizer developed by Softrave. Available format(s): VST for Windows.

Noisybox VSTi is tempo-synced and designed for use in noise, IDM, electro, trance and experimental styles.

Press the key, turn the modwheel. Be careful with your speakers. Its better to have some compressor in chain.

Made with SynthEdit

http://www.tikov.com/softrave/softrave.htm

NitrousPM

NitrousPM free software-synthesizer by NOVAkILL

NitrousPM is a free software synthesizer developed by NOVAkILL. Available format(s): VST for Windows.

NitrousPM is the first part of NOVAkILL’s “Nitrous Project”. It is a two oscillator virtual-analogue synth with high quality oscillators and a wealth of modulation sources. Its super-compact UI is designed to maximise workflow without making it too hard to work with, thanks to large, well-spaced knobs and obvious, simple to use minor controls.

Its main features are:

  • Two high quality SyncFX oscillators from Chris Kerry with 11 waveforms and Phase Modulation.
  • Unison, optimised for “massive, phatty goodness”.
  • State-Variable filter with Low Pass 12 and 24dB/octave and 12dB/octave High Pass, band Pass and Band Reject modes.
  • Two ADSR envelopes, both with multiple interpolation modes [slope] with looping on the modulation envelope only.
  • Tempo-synced LFO with 5 modulation destinations [3 available simultaneously].
  • VCA with Mono/Poly modes and Portamento [mono mode only].
  • Extensive routing for velocity modulation and Mod Wheel control.
  • 16-step programmable Gate Modulation source, assignable to phase mod, filter cutoff and volume [trance-gate].
  • New RARP uses the Gate sequence to create random note variations over a user-definable range [0 to 2 octaves].
  • Overdrive effect.
  • MIDI “Learn” eliminates the need for MIDI CC assignments.
Made with SynthEdit

http://www.novakill.com/