Free Software Synthesizers

VSP-330

VSP-330 is a free software synthesizer developed by G-Storm Plugins. Available format(s): VST for Windows.

G-Storm Plugins introduces the VSP-330 Voice Synth Plus VST plugin. Redesigned from the ground up, version two is a software synthesizer that emulates vintage HUMAN VOICE synthesized formant choirs and STRING ensemble sounds inspired by the rare and nearly extinct VP-330. The VSP-330 emulation is possible through synthesis techniques, no samples, using a newly developed quad-delay ensemble effect.

Features of the VSP-330:

HUMAN VOICE section has vibrato, 8′ and 4′ toggles for upper and Lower, attack-release envelope, and ensemble toggle.

STRINGS section has 8′ and 4′ toggles for upper and Lower, attack-release envelope, TONE control over brightness and dullness, and ensemble toggle.

8′ SHIFT DIAL increases the tuning of the 8′ Male HUMAN VOICE sounds to achieve different tuning intervals. This feature was not on the original instrument.

PITCH SHIFT SLIDER and the PITCH SET DIAL are used in conjunction to transpose the keyboard down.

Slider and Potentiometer labels will radio data values when parameters are changed.

https://gstormplugins.blogspot.com

VS-1 Oscilloscope

VS-1 Oscilloscope is a free software synthesizer developed by BK SynthLab. Available format(s): VST for Windows.

Features:

Stereo synthesizer.

Mono/polyphonic.

3 Oscillators.

2 Filters:

Filter Stages is a pin, and allows selection of from 1 to 8 stages.

2 band pass types:

BP – constant skirt gain, peak gain = Q.

BP” – constant 0 dB peak gain.

Gain Compensation option for LP, HP and BP1 filter types.

Individual Frequency, Resonance, Level, Pan, Keytrack controls for each filter.

4 ADSR envelopes with synchronization of initial impulses.

4 LFOs.

4×16 step gate.

Effect block with phaser, delay, eq, unison.

http://www.sitesled.com/members/bksl/

Vogue MK2 Synthesizer

Vogue MK2 Synthesizer is a free software synthesizer developed by Victor Cerullo. Available format(s): for macOS.

Vogue MK2 is a stand-alone synthesizer fully compatible with Max Magic Microtuner tuning files.

http://launch.groups.yahoo.com/group/16tone/

voc-two

voc-two is a free software synthesizer developed by Simple-Media. Available format(s): VST for Windows.

Voc-Two allows you to create realistic string ensemble and choir sounds without the use of samples. It includes a wide range of controls over the source sound generation and the morphable formant filter making it a surprisingly flexible instrument for creating rich and atmospheric pads and realistic ensemble sounds.

http://www.simple-media.co.uk/vsti.htm

voc-one

voc-one is a free software synthesizer developed by Simple-Media. Available format(s): VST for Windows.

voc-one uses a simple analogue synthesizer to simulate the glottal pulse or pulses and then uses a powerful, morphable formant filter bank to give a realistic, warm and flexible vocal quality.

Features:

Full control over each stage of the vocal synthesis.

Morphable formant filter with 11 recognized phonetic vowel spectra.

Morphing between vowels sounds subtle and natural.

Control over the register of the formant filter and the emphasis to give a much greater range of possible vocal types.

8 presets plus room for 8 more.

Built in high quality reverb (UDReverb based on freeverb).

Lots of potential for experimentation.

NOTE: CPU usage is quite high and a minimum 1.2GHz processor is recommended, although it will work (if the playing is not too complex) on an 800MHz processor.

http://www.simple-media.co.uk/vsti.htm

VL1

VL1 free software-synthesizer by PolyValens

VL1 is a free software synthesizer developed by PolyValens. Available format(s): VST for Windows.

VL1 is a Casio VL-Tone emulation. It implements all functionality of the original calculator/mini-synthesizer from Casio, including song recording and calculator.

Features:

Fully programmable.

Five preset sounds and one user programmable sound.

Synthesizer and rhythm are on two separate channels.

Rhythm sounds can be controlled individually.

Desktop calculator.

http://www.polyvalens.com/

Vivaldi MX

Vivaldi MX is a free software synthesizer developed by SK. Available format(s): VST for Windows.

4 times 2 operator FM synthesis, up to 8 oscillators per note.

6 output busses, 2 stereo and 4 mono (if your VST Host supports multiple outputs).

Up to 16 channel multi-mode, play 16 different vivaldi sounds independently with one instrument.

Up to 64 voices polyphony.

Up to 4 parts per note for voice layering, including support for velocity and key window.

Sample precise support for the MIDI controllers: volume, expression, panpot, pitch bend, sustain pedal, cc #16 (Mod Level), cc #17 (Feedback Level).

Choose different output busses for each channel of the instrument, or for each part of a sound.

Polyphony can be limited independently for every channel.

Significant performance improvement compared to Vivaldi ‘classic’.

Turn unused midi channels off to save CPU time.

Turn receive of Program Change/Pitch Bend/Controller off for individual channels to save even more CPU time.

Support for all sample rates.

Can load all Vivaldi ‘classic’ presets and banks.

True 32bit floating point signal processing on per-sample-basis, no down scaling.

http://www.jewe.org/

ViSYNTH

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

ViSYNTH is a monophonic synthesizer based on Synth Lite by MFB (but is not intended as a software clone).

Features:

Oscillators: 2 with saw, square, pulse waveforms.

Sub oscillator: 1 with a square waveform.

Oscillator mode: ring-modulation 1*2, 1*2*3 and oscillator sync.

Modulator: triangle, saw down, square and one shot saw down. The modulator can be set to the oscillators pitch and the filter’s cutoff amount. If the oscillator 2 is set to pulse, the modulator acts as pulse-width-modulation.

Filter: 24db low-pass filter with envelope modulation (ADSR 1) and CV (note pitch) modulation.

VCA: the ADSR 2 is set to the VCA (when the release value in the system settings is set to 0 the amount of the decay = the amount of the release value).

Global settings: modulation wheel: can be set to oscillator pitch or filter’s cutoff velocity sensitivity.

http://www.alterex.nl/

Virtual Machine

Virtual Machine is a free software synthesizer developed by xoxos. Available format(s): VST for Windows.

Virtual Machine is a commuted synthesis model for emulating engines and similar mechanical sounds. The architecture consists of three correlated signal generators and two resonators for modeling cabinet acoustics. A ‘Gearbox’ is used to modulate parameters as a group to add realism during ‘performance.’

https://www.kvraudio.com/developer/xoxos

Vinylusion

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

Vinylusion emulates the natural shape and texture of vinyl records playing on a turntable. The goal is to re-create all those good old record player sounds such as crackles, pops, static and hiss that give a unique warmth and vintage-retro feeling to a track.

Vinylusion has 4 main controllers:

MEKANIKX gives you the option to tweak the more mechanical and machine-like background noises of a turntable.

T-TABLE A and T-TABLE B are to be used mainly to generate and adjust vinyl crackles and pops.

STATIKX is a noise oscillator.

http://www.vetrixmusic.com/