SH-009 Monosynth

SH-009 Monosynth free software-synthesizer by Postdawn Nurseries

SH-009 Monosynth is a free software synthesizer developed by Postdawn Nurseries. Available format(s): VST for Windows 64b.

SH-009 Monosynth is an emulated Roland SH-09 (Roland does not endorse this plug-in of course). It is pretty close in functionality and sound to the hardware version. Highlights include a LFO modulator with random / sample-and-hold step voltage that can be used to modulate the oscillator, the filter, and the pulse width. It also includes an invert switch for the envelope, which can modulate the filter and pulse width, as well as the amplifier.

Two versions are included: a VST instrument and a VST effect. The effect version can be used as an insert or in a modular host to process external audio through the filter and to control the filter envelope.

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http://postdawnnurseries.com/

SGA1566

SGA1566 free overdrive | saturation by Shattered Glass Audio

SGA1566 is a free overdrive and saturation VST, Audio Unit plugin developed by Shattered Glass Audio. Compatible OS(s): Windows 64b, macOS.

SGA1566 preamplifier is loosely based on a single channel all tube vintage preamplifier. To achieve the most authentic analog sound, the whole circuit is simulated in real time using the high performance circuit simulator. This level of sound fidelity comes at a price of high CPU utilization. For cases where such a CPU hit is prohibitive, we have added a model that is significantly less CPU intensive but slightly less accurate than the circuit simulation.

Use SGA1566 preamp to add warmth to a track, as a saturation compressor, or to add “dirt” with tube overdrive.

Features:

  • Authentic analog sound through real-time high-performance circuit simulation.
  • Preamp featuring two 12AX7 voltage amplification stages.
  • CPU friendly model of the circuit.
  • Two-band active Baxandall EQ that can be placed either at the beginning or at the end of the signal chain.
  • Up to 4x oversampling.
  • Mono or stereo processing mode.

http://www.shatteredglassaudio.com

sg-uglyverb

sg-uglyverb free reverb by Synthgeek

sg-uglyverb is a free reverb VST plugin developed by Synthgeek. Compatible OS(s): Windows.

There are times when I want a reverb for its smearing, tail-producing qualities, but a regular reverb isn’t ugly enough. This was created to solve that problem. It sounds just like the name implies, and sometimes that’s just what the situation calls for.

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http://synthgeek.skincontact.com/

sg-tadf1

sg-tadf1 free filter | ring-modulator by Synthgeek

sg-tadf1 is a free filter and ring modulator VST plugin developed by Synthgeek. Compatible OS(s): Windows.

This is a dual filter bank with a ring modulator and distortion. For modulation, there are 2 LFOs and 2 step sequencers, plus the combiner module as seen in the noisebots. “TADF” stands for Total Audio Destruction Filter.

Made with SynthEdit

http://synthgeek.skincontact.com/

sg-sineshaper

sg-sineshaper free waveshaper by Synthgeek

sg-sineshaper is a free waveshaper VST plugin developed by Synthgeek. Compatible OS(s): Windows.

Sine-based waveshaping distortion. A rather nasty effect, especially with lower “divisor” values. Values of 2 or higher are closer to a standard soft-clipping transfer function. Use the input level to control drive.

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sg-noisebot

sg-noisebot free software-synthesizer by Synthgeek

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

This is another “noisebox” synth, similar in attitude to the previous SG-APCX (in that it is designed to be used as a sound effect generator more than a standard synth), but based on a completely different method of sound generation.

This synth is based around two sound generators- one that uses a math formula capable of chaotic behavior, and another which is an oscillator-synched noise source. The combination of these two sources produces a wide range of strange sounds, from clicks & beeps to grinding mechanical mayhem. Another interesting feature present in both versions is the “data corruption” effect, which adds another level of chaos to the mix. This is something like a software circuit bend which taps the audio stream at several points along its path, randomly mangles the signals in various ways (which are affected by various combinations of control signals from the synth’s modulators) & mixes the mess back into the output.

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http://synthgeek.skincontact.com/

sg-Modutronic Messmaker

sg-Modutronic Messmaker free software-synthesizer by Synthgeek

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

This is a simple synthesizer based on a lo-fi hardware synth of the same name which I built (see my blog for more info). It consists of two squarewave oscillators, and uses both frequency and amplitude modulation to create sounds. The first osc is amplitude-modulated by the second, and the AM output is then fed back to modulate the frequency of the first osc.

This software version is different from the original in several ways, the biggest difference being the filter. The rest are down to differences in the implementation of various features/characteristics- in some cases, I did what I could to make it true to the original, in other cases, I left it alone. This means that the software is unable to mimic the sound of the original perfectly, but it can also do things the original can not.

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http://synthgeek.skincontact.com/

sg-modutron mini

sg-modutron mini free software-synthesizer by Synthgeek

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

This is a simple 1-oscillator synth based on “virtual circuit-bending”. The initial idea started out as an attempt at making a bass synth version of the APC synth. It turned out to be impossible to get it to track pitch at all, so more experimentation ensued, and this is the result. It does track pitch, but often sounds will change across the keyboard or possibly even stop making sound at a certain key.

Some of the ideas used here will doubtless be put to use in a larger multi-osc synth, though whether an expanded version of this exact synth will be developed remains to be seen.

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sg-lunettik pack 1

sg-lunettik pack 1 free software-synthesizer by Synthgeek

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).

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sg-grainbot

sg-grainbot free software-synthesizer by Synthgeek

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.

KVRDC09

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