Rez

Rez free software-synthesizer by Ugo

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

Rez is a seemingly basic synth, but it’s capable of a very wide range of sounds. While Rez has a bunch of cool features, the beating heart of Rez is its filter. It’s made from multiple chained filters acting as a single powerful filter and it’s highly resonant, providing Rez with its distinctive character. Top that off with distortion, a phaser, various oscillator modulations, delay, and a killer programmable arp and step sequencer, and you’ve got a powerhouse of a synth in a very small package.

From funky squishes, beastly basses, and screaming leads, to tight arpeggiations, swirling rhythms, atmospheres, bells, and interesting effects, you’ll find it all here. Additionally, it comes with two skins – Yellow & Black, or Black & Yellow.

Features:

  • Virtual analog oscillators.
  • Sub-oscillator.
  • Detune (modulatable via aftertouch).
  • Programmable phrase arpeggiator.
  • Step sequencer (arp driven) with four mod destinations.
  • Highly resonant low pass filter with velocity, LFO, and envelope modulation.
  • “Age” control (noise to pitch).
  • Two types of phase modulation.
  • Beastly overdrive with three tone modes.
  • Dual delay with stereo width adjustment.
  • Phaser with optional LFO and velocity modulation.
  • MIDI learn for all controls.
Made with SynthEdit

http://www.ugoaudio.com/

Retro Boy

Retro Boy free software-synthesizer by Sound-Base Audio

Retro Boy is a free software synthesizer developed by Sound-Base Audio. Available format(s): VST for Windows.

Features:

  • Single oscillator with seven waveshapes: Pulse 1 (12.5%), Pulse 2 (25%), Pulse 3 (50%), Saw, Triangle, Sine, Noise.
  • Volume, vibrato and decimation (to enhance the nostalgia), ADSR envelope, and voice control (1 to 4 voices).
  • Built to be a compact, bare-boned, chiptune synthesizer.
  • Low CPU usage, <1% on i5 processor.
Made with FlowStone

https://sbaud.io

Remedy

Remedy free software-synthesizer by KeyToSound (Koblo)

Remedy is a free software synthesizer developed by KeyToSound (Koblo). Available format(s): VST, Audio Unit, RTAS for Windows, macOS.

Features

General:

  • Portamento with Automatic Setting or user set amount.
  • 5 voice Polyphony.
  • Monophonic Mode.
  • Legato Mode.

LFO Section:

  • Global ON/OFF.
  • 6 Waveforms.
  • Adjustable Rate and Attenuation.
  • Pitch.
  • FM Modulation Send.
  • PW Modulation Send.
  • Cut off amount.

Amp Section:

  • Attenuation.
  • Attack, Hold, Decay, Sustain and Release (AHDSR Envelope) controls.
  • Pulse Width Modulation Amount.
  • FM Modulation Amount.

Oscillator Section:

  • Two Oscillators.
  • Osc. 1: 5 waveforms.
  • Osc. 2: 7 waveforms.
  • Mix control between Osc. 1 and Osc. 2.
  • Pulse Width Modulation Amount.
  • FM Modulation Amount.
  • Osc. Mix.

Filter Section:

  • Filter Amount.
  • Attack, Decay, and Sustain controls.
  • Cutoff Frequency.
  • Resonance Amount.
  • Drive Amount.
  • Mod Wheel Control Amount.
  • Velocity Control Amount.

Arpeggiator Section:

  • Synchronize to Host.
  • 1 to 4 Octave Range.
  • Echo FX On/Off.
  • 7 Mode Settings.
  • 7 Pattern Settings.

Refractor

Refractor free software-synthesizer by Noizefield Instruments

Refractor is a free software synthesizer for Reaktor, developed by Noizefield Instruments. Available format(s): for Windows, macOS.

REFRACTOR is a synthesizer for Native Instruments Reaktor, based on Karplus Strong synthesis. Instead of using noise as the impulse this synth does use sample-wavetables. Therefore the results are much more experimental, unforeseeable and multifarious. Several delay lines, a multimode filter and special tweaks make this synth unique.

Works with Native Instruments Reaktor 5.9.4 and above.

{See video at top of page}

http://www.noizefield.com/

Red Devil

Red Devil free software-synthesizer by LRsynths

Red Devil is a free software synthesizer developed by LRsynths. Available format(s): VST for Windows.

Features:

  • Up to 32 voice polyphonic.
  • 3 Oscillators with various Waveforms (Sine, Saw, Ramp, Triangle, Pulse, White Noise, Pink Noise).
  • Switchable 24 dB LowPass Filter / HiPass Filter / BandPass Filter with Filter Envelope.
  • ADSR.
  • LFO with Routing.
  • Mod-Section.
  • Simple Delay.
  • MIDI Automation.
Made with SynthEdit

http://www.alphastrike.de/orangebase/vst.html

ReBirth RB-338

ReBirth RB-338 free software-synthesizer by Reason Studios

ReBirth RB-338 is a free software synthesizer developed by Reason Studios. Available format(s): for Windows .

ReBirth RB-338 pioneered a new era of music instrumentation that merged the principles of “virtual reality” with historic synthesizers and drum machines.

Introduced in 1997, ReBirth is a software emulation of classic Roland devices: the TB-303 Bass Line synthesizer and the TR-808 and TR-909 Rhythm Composers.

Officially discontinued in 2005, Propellerhead Software created the ReBirth Museum where you can download the final version of ReBirth for free (as a CD-ROM image).

https://www.reasonstudios.com

Rebeld

Rebeld free softsynth-preset by ZenSound

Rebeld is a free software synthesizer preset pack for Charlatan, made by ZenSound.

Rebeld is a soundset for Charlatan by BlauKraut Engineering.

It’s amazing how many sounds can be created with a small and simple synth. The soundset contains patches with basses, brasses, kicks, drums, keys, leads & SFX.

Contains:

  • Normalized volumes.
  • Mod Wheel control in all the patches.
  • 128 patches.
  • PDF with a detailed installation guide.

Rebeld audio demos

http://www.zensound.es/

Reality

Reality free software-synthesizer by TorQue Audio

Reality is a free software synthesizer developed by TorQue Audio. Available format(s): VST for Windows.

Reality is an emulation of the Realistic MG-1, a synth that was sold by Radio-shack but was made by the Moog company. Special attention was given to the oscillators, analog instability and overall oddness of the original.

Features:

  • 2 analog style oscillators (tone sources) with saw/square waveform, sync and ring modulation (bell).
  • Noise generator.
  • Tempo sync LFO (modulation) with triangle, square and random waveforms.
  • ASR envelope (contour).
  • VCA with multiple mode, envelope, key (gate) and continuous.
  • 24db filter modulated by the LFO and Envelope.
  • Monophonic or polyphonic modes with separate tuning.
Made with SynthEdit

http://sarvst.110mb.com/

Reaktor Piky

Reaktor Piky free software-synthesizer by Dario Lupo / Daze

Reaktor Piky is a free software synthesizer for Reaktor, developed by Dario Lupo / Daze. Available format(s): for Windows, macOS.

Reaktor Piky is a simple synthesizer for Native Instruments Reaktor based on the creation of “pikes” and “plucks” with extreme ease.

http://www.dazesounds.com/

Reaktor Bass One

Reaktor Bass One free software-synthesizer by Dario Lupo / Daze

Reaktor Bass One is a free software synthesizer for Reaktor, developed by Dario Lupo / Daze. Available format(s): for Windows, macOS.

Reaktor Bass One is the Native Instruments Reaktor ensemble version of Bass One Windows VST.

http://www.dazesounds.com/