Synthesis

sg-lunettik pack 1

sg-lunettik pack 1 is a free software synthesizer developed by Synthgeek. Available format(s): VST for Windows.

This is a series of small noisemaking devices inspired by Lunettas- in a nutshell, Lunettas are simple circuits, often based on CMOS logic chips. To quote mosc from the electro-music forums, “These machines are named after Stanley Lunetta of Sacramento, California… Lunettas are very simple, digital, noisy, quirky, and lots of fun.”

Note that these are not meant as emulations of any specific circuit, they are just inspired by the concept. Like the circuits which inspired them, they don’t necessarily do things “right”, but they generate interesting sounds. If you like noisy, droney, and/or buzzy stuff based on square waves, check ’em out. The first pack includes three simple generators: SR1, OR1, and BC1, which are named after the logic functions used in their design (Shift Register, OR gate, and Binary Counter).

http://synthgeek.skincontact.com/

sg-grainbot

sg-grainbot is a free software synthesizer developed by Synthgeek. Available format(s): VST for Windows 64b.

Grainbot is an experimental synth based on granular synthesis and mathematically generated noise. It’s not made for traditional bass/lead/pad type stuff (though it can do that if pressed), but it is capable of a wide range of other sounds: mechanical and engine-type sounds, rhythmic percussion sequences, random bleepery, drones, ambiences, and more. It can also process external audio.

There are two sound sources: the grain generator (which can granulate internal sound sources or an audio input), and “gen 1”, a chaotic math-based sound generator. There is also a ring modulator which uses these two generators as its inputs. You can choose between 5 different input sources for the grain generator: live audio input, a built-in analog-style oscillator, the input amplitude modulated by the oscillator, gen 1, or audio input from a file. The sound generators are processed through a filter with 5 types (lo pass, hi pass, notch, and 2 flavors of band pass) and a selectable number of stages. There is also a stereo delay effect which can sync to host tempo (or not). Various parameters (including the delay effect) can be modulated with 2 step sequencers, 3 LFOs, and a 6-stage envelope. The modulation routing is provided via matrix. Besides the modulators mentioned above, there are also matrix inputs for key tracking and velocity, and a “combiner” which uses various math formulas to combine any two mod sources in various ways.

Originally released for the 2009 KVR Developer Challenge, since updated.

http://synthgeek.skincontact.com/

sg-apcx2

sg-apcx2 is a free software synthesizer developed by Synthgeek. Available format(s): VST for Windows.

This is an expanded version of the original APC1 synth from synthgeek, including more filter options, distortion, and modulation via 3 LFOs, 4 step sequencers, and the combiner module from the noisebot synths. Think of it as a groovebox for crazy synth fx. It can also be coerced into lo-fi squelchy bassline territory, though due to it’s nature, tuning can be tricky.

This has been rebuilt to include features developed for the noisebot synths. The sound sources here are two Atari Punk Console-style oscillators.

http://synthgeek.skincontact.com/

Serio3

Serio3 is a free software synthesizer developed by Dario Lupo / Daze. Available format(s): VST for Windows.

Serio3 is a 3-oscillator Subtractive Synthesizer with 3 Sub OSCs, an ADSR for each OSC, Ring Modulation, 2 Filters, 2 LFOs, a Stereo Enhancer, Delay, Reverb and Chorus Effects.

http://www.dazesounds.com/

Seeq One

Seeq One is a free software synthesizer developed by Odo Synths. Available format(s): VST for Windows.

Features:

5 sequencers:

1 sequencer is for “Notes and Octaves” but can also be used for filter, Pulse Width, resonance or Phase modulation.

2 sequencers are used as envelope decays mainly for cutoff and oscillator pitch but also for pulse width and phasemod or resonance.

1 “normal” sequencer (no decay fx) can also be used for the same destinations.

Gate sequencer with mix option.

3 oscillators (sine/saw/ramp/pulse/triangle) – octave/note and fine tune for all of them.

5 filters – low/hi/band/4pole/8pole – and a filter envelope with Attack, Decay, Sustain and Level.

An extra oscillator for FM/PM/PW.

2 LFOs.

2 decay FX.

Left and right delay.

Glide.

Soft distortion.

64 presets.

https://theodosynthsarchive.wordpress.com/

SE PolyMod KX

SE PolyMod KX is a free software synthesizer developed by KX77FREE. Available format(s): VST, VST3, Audio Unit for Windows 64b, macOS.

Vintage polyphonic synthesizer to build analog 70’s leads!
Open SE1, provided with its SE1 files and skin elements.
Built for help SE community, based only on SE modules but great VA sounding!
Alpha release available for Mac users.

Oversampled x2, x3, x4.
Stereo routing.
Up to 4 voices.
12*12 Matrix.
8 KXMOD modulations.
3 Vcos with 5 waveforms and Sync (Vco1 only).
5 Keyboard traking (-10 to 10) for the Vcos and the Vcfs.
1 Ring Modulator with EQ.
1 Noise Generator.
1 Monophonic LFO with ADSR (possible to use it like an oscillator).
2 Mulitmode VCFs (SVF, Moog, Korg with saturator).
4 Polyphonic EGs with velocity and Kbd controls.
1 X Y joystick controller.
2 Delays with host sync, multimode filter and modulation oscillator with host sync.
1 Scope.
1 Frequency display.
1 Note pad.
Full MIDI learn.
Internal Fxp and Fxb management.
104 KX’s presets very 70’s.

https://www.youtube.com/user/KX77FREE

https://www.youtube.com/watch?v=VOjQLPYrJvQ

http://kx77free.free.fr/

SDX

SDX is a free drum machine VST plugin developed by MARVIN VST. Compatible OS(s): Windows.

SDX is a classic snaredrum synthesizer with analog synthesis.

Features:

Trigger/Keyboard mode.

Drum part

2 oscillator types.

Pitch control.

Tone control.

Decay control.

Snare part

2 filter types (BPF/HPF).

Tone control.

2 envelope types.

Decay control.

Level control.

MIDI CC support.

Automation support.

http://marvin.starfree.jp/

Scylla

Scylla is a free software synthesizer developed by de la Mancha. Available format(s): VST for Windows.

Scylla is a VST instrument that combines sample playback with subtractive synthesis to produce a wide variety of sonic possibilities. 3 samplers and 3 different types of oscillators allow many forms of sound design, including wavetable, granular, sample looping, phase distortion, morphing and spectral synthesis. More spice is added with granulizing, ring modulation and all the (un)usual envelopes, LFOs and filter options.

Included in the package are 165 original samples, including single waveforms, tuned loops and diverse recordings. The default bank of 128 presets by brian botkiller cover leads, basses, pads and fx.

For unlimited possibilities, you can also load your own samples in Scylla and use the inbuilt custom looping, granular playback and other sampler options to make new sounds out of old ones.

Features:

Three layers of programmable audio sources.

Each layer consists of:

Sample player capable of loading full-length samples and custom waveforms.

Oscillator (Dual-OSC with cross-modulation, Morphing OSC, Spectral OSC).

Each sampler features:

Playback: Oscillate, Play-Once, Loop-Release.

Basic audio playback features (normalize, stereo to mono, zero-crossing).

Customizable Loop points.

Granular and Wavetable playback.

Loads any WAV format sample from your own library.

96MB of sample content, including waveforms, samples and loops.

128 presets by brian botkiller.

All audio sources have independent tune, volume, and pan.

Ring-Modulation per layer.

Variable stage Filter per Layer.

Adjustable Amp and Filter Envelopes per layer (Envelope contours can be changed).

Layer Assignable Granulator engine.

2 layer assignable LFO effects for modulating ring-mod, cutoff (filter), and phase of one LFO.

Adjustable Global Amp Envelope.

Mix level of each audio source can be adjusted.

Mix level of each layer can be adjusted.

Master Volume.

Each audio source, envelope, ring-mod and filter can be switched off to save CPU.

MIDI CC support.

https://delamanchavst.wordpress.com

SCB-1

SCB-1 is a free software synthesizer developed by Fred Welsh. Available format(s): VST for Windows.

Features:

Amplitude response and filter slopes based on the averages of ten commercial synths.

Settings of each parameter clearly displayed.

2 oscillators: square/pulse, sawtooth, triangle, with sync and white noise source.

12 dB/24 dB lowpass filter with ADSR envelope.

LFO syncs to host or runs independently.

Stereo delay, chorus, stereo broadening, and frequency spectrograph.

http://www.synthesizer-cookbook.com/

ScanSynth

ScanSynth is a free software synthesizer developed by Smart Electronix. Available format(s): VST for Windows.

by mdsp of Smart Electronix

ScanSynth is a synth based on “scanned synthesis” as described by Bill Verplank, Max Mathews and Robert Shaw in this article (20KB PDF).

“To make audible frequencies, the “shape” of the dynamic system, along a closed path, is scanned periodically. The pitch is determined by the speed of the scanning function. Pitch control is completely separate from the dynamic system control. Thus timbre and pitch are independent. This system can be looked upon as a dynamic wave table controlled by the performer.”

The dynamic-string is a mass-spring physical model which is shared by all the voices and users can directly interact with the string’s evolution on the screen. Each voice has 2 scanning-oscillators and a chaotic LFO to add drift and life to the sound.

http://www.smartelectronix.com/