SynthFont

SynthFont free sequencer by Kenneth Rundt

SynthFont is a free sequencer stand alone application developed by Kenneth Rundt. Compatible OS(s): Windows 64b.

SynthFont 1 is a free tool for playing/rendering MIDI files using SoundFonts and other similar sound sources (WAV, DLS, GIGA and also VST Instruments).

SynthFont2 is the second generation of SynthFont and has a number of new features and improvements. It costs €15.

SynthFont is intended to mimic the behavior of SoundFont compatible hardware/soundcards like SoundBlaster Live! or Audigy and SynthFont is (almost) modulator aware, which Live! is not. But SynthFont is more. It provides an interface into the SoundFont structure and has basic editing capabilities. It also displays various data about the loaded MIDI file through the piano roll and the event list. Finally, there is a simple playlist feature for storing the files you are currently working on.

SynthFont also supports VST effects – there are 17 busses in all: one master bus and 16 channel busses.

VSTSynthFont (VSF), a separate VST instrument version of SynthFont is also available.

http://www.synthfont.com/

Synthetik

Synthetik free software-synthesizer by Tru-Urban

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

Synthetik is a free VST and AU plugin delivering fresh inspiring sounds and FX for Hip-Hop and R&B productions including synths, bells, synth bass, brass, electric pianos, pads, strings and more.

The Synthetik VST/AU Plugin is called a “semi-synth” because it does not posses all of the traditional functions of a full synthesizer. Instead, Synthetik has really high quality sounds out of the box that can be fine-tuned and tweaked further using the LFO settings, Reverb and ADSR. Synthetik has glide control and the full range of play modes such as Mono, Poly and Legato.

Synthetik is compatible with all music software supporting VST or AU format on both Windows and Mac.

Made with Maize Sampler

http://www.tru-urban.com

SyncSawSynth

SyncSawSynth free software-synthesizer by Uhhyou

SyncSawSynth is a free software synthesizer developed by Uhhyou. Available format(s): VST3 for Windows 64b, macOS, Linux.

Note: Currently Linux build doesn’t display GUI due to some problem related to VSTGUI. For Linux, LV2 version is available at https://github.com/ryukau/LV2Plugins.

Note: I don’t have mac so macOS build is not tested. If you find bug, please report it to https://github.com/ryukau/VSTPlugins.

SyncSawSynth is a synthesizer equipped with up to 10th order PTR sawtooth oscillator. PTR stands for polynomial transition regions which is an aliasing suppressing technique. As the name suggests, this one hard syncs:

  • Equipped with 2 of 0 to 10th order PTR sawtooth oscillator.
  • Can also use sin. However, hard sync for sin is not alias suppressed.
  • 3 types of hard sync option. Only use “Ratio” option for tonal sound.
  • Phase controls. Possible to make a square wave with phase inversion.
  • Frequency modulation between 2 oscillators. You can be a noise musician in a second.
  • 1 AD envelope, 1 sin LFO and 1 pink noise generator for frequency modulation. The AD envelope uses equation (t^a * exp(-b * t)).
  • Exponential ADSR envelope saturated with tanh for output gain.
  • Equipped a filter that is serially connected 4 RBJ biquad with feedback. Low-pass, high-pass, band-pass, notch can be used.
  • 4 types of filter feedback saturation.
  • Linear ADSR envelope for filter cutoff and resonance. The output of filter envelope is logarithmically mapped to cutoff frequency.
  • Key follow for filter cutoff and resonance.

Some optimization made into version 0.1.3, however it’s still a bit slow. To keep CPU consumption lower, reduce maximum number of voice.

{See video at top of page}

https://ryukau.github.io/VSTPlugins/

Syncla-X [Large Version]

Syncla-X [Large Version] free software-synthesizer by Digital Systemic Emulations

Syncla-X [Large Version] is a free software synthesizer developed by Digital Systemic Emulations. Available format(s): VST, VST3, Audio Unit for Windows 64b, macOS.

The first free emulation of the Synclavier II FM Unit… Extended.

“That’s pretty awesome sounding. I love it when I run the bit-depth it has real character. […] It’s very impressive!”

-100 Things I Do, original owner of a Synclavier II.

Features:

  • 4 Carriers, 4 Modulators.
  • 8 Harmonics generator.
  • 8 ADSR + 2 ADSR.
  • Individual Pans.
  • Velocity.
  • Filter.
  • Mono/Poly modes.
  • 2 LFOs.
  • 2 Effects: Flanger and Bit Depth.

NOTE: You have to install VC runtimes c++ 2015 to make the software works.

(Only windows, Macs don’t need this obviously).

https://www.microsoft.com/en-us/download/details.aspx?id=53587

Made with SynthEdit

https://sites.google.com/site/digitalsystemic/

Sxratch

Sxratch free vinyl-emulator by KlangLabs

Sxratch is a free vinyl emulator VST plugin developed by KlangLabs. Compatible OS(s): Windows 64b.

Sxratch is a free “Virtual Scratcher”.

Filter section:

  • Resonance, High Freqs, Low Freqs.

Sensitivity section:

  • Start and End knobs: They set the range points where you want to scratch, useful to get more accurate scratching moves.
  • Accel: Acceleration or “torque” of the scratcher after you click then release over the scratching slider.
  • SMTH (Smoothing): Sets the smoothness of the scratch moves.

Main section:

  • VOL: Sets the main volume.
  • PITCH: Sets the “speed” of the “record” (RESET button to reset knob to original pitch).
  • REW: Plays the sound backwards.

File section:

  • FILE button: Click on it to load a *.wav file. (Sxratch works better with files shorter than 10 seconds).
  • Record button: It records the input signal, useful for live use, pick snippets from your band mates and scratch over that.
Made with SynthEdit

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

Sweetcase Electric Piano

Sweetcase Electric Piano free rompler by NoiseAsh

Sweetcase Electric Piano is a free rompler VST, Audio Unit plugin developed by NoiseAsh. Compatible OS(s): Windows 64b, macOS.

Sweetcase is a virtual instrument plug-in that takes your electric piano parts very easy level and realistic right in your computer, with warm and professional sound quality.

Core Specifications:

  • Warm, shiny realistic and customisable professional vintage electric piano sound with nice special 3D GUI.
  • Like most of NoiseAsh Audio products, this is a Ready to mix instrument. That means your e-piano tracks won’t need to be tweaked hard for modern analog vibe. It can be used in any kind of music that needs piano / electric piano tracks.
  • All samples were recorded, mixed / mastered through classic analog gears such as tape saturator, tube eq and compressors.
  • Many round robins and different velocity layers for realistic sound.
  • Bass Boost, Bell, Modulation (Pan, Tremolo and Pitch), Built in Reverb controls.

{See video at top of page}

http://www.noiseash.com

SVArTracker

SVArTracker free host by SVAr software

SVArTracker is a free host application developed by SVAr software. Compatible OS(s): Windows 64b.

SVArTracker is a modular VST/DirectX supporting tracker application.

Pattern Editor:

  • Customizable view.
  • Change track order, hide tracks and/or rows.
  • Restructure input mask for up to 9 notes and 9 effect columns per track.

Virtual Studio Scheme Editor:

  • Can load VST, VSTi, and DirectX DMO plugins.
  • Allows complex connections between placed sound components.
  • Routing of wave and control signal as you wish.
  • Cut/Copy/Paste enabled.

Pattern Order Editor:

  • Place patterns one by one or in parallel.
  • Stretch pattern duration, transpose notes, set repeat count, apply volume curve.

Flow Editor (static automation):

  • Allows parameter automation.
  • Create & place parameter change curves in the time line.
  • Ability to stretch curve, add or remove points while playing.

Effect Processor (dynamic automation):

  • Build complex automation for parameters and organize them on the tasks palette.
  • Tasks can be used as effects in the pattern effect column.

Function Variator:

  • Customize pattern hot keys for built-in functions (volume slide, shrink/expand selection, iterate instrument, transpose notes in selection…).

Audio Engine:

  • All internal operations are 32-bit floating point, except calculations requiring 64-bit floating-point precision.

Output:

  • DirectX wave and MIDI driver output.
  • Renders wave file (PCM16 PCM32 FLOAT32 at 22100-196000 Hz).

http://www.svarsoft.com/

Svep

Svep free multi-fx | flanger | chorus | phaser by Klevgränd Produktion

Svep is a free multi fx and flanger and chorus and phaser VST, VST3, Audio Unit, AAX plugin developed by Klevgränd Produktion. Compatible OS(s): Windows 64b, macOS.

Svep is a stereo modulation filter effect suitable for any sound. All parameters are easily editable in one screen and the clean and responsive user interface encourages creativity. Tweak it to produce anything from old-school phasers to subtle choruses.

Features:

  • Low CPU usage.
  • Simple but yet powerful user interface.

Features iOS:

  • Inter App Audio (IAA) compatible. Works fine with Garageband and other IAA compatible hosts.
  • Supports Audiobus 2 including state saving.
  • Load / Save presets.
  • Remembers IAA hosts (will automatically load last used settings when a host connects).

Svep is developed by musicians for musicians.

http://klevgrand.se

Surge

Surge free software-synthesizer by Vember Audio

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

General:

  • Synthesis method: Subtractive hybrid.
  • Each patch contain two ‘scenes’ which are separate instances of the entire synthesis engine (except effects) that can be used for layering or split patches.
  • Category based patch-browser.
  • MPE support.

Oscillators:

  • 3 oscillators/voice.
  • 7 versatile oscillator algorithms: Classic, Sinus, Wavetable, S/H Noise, Audio-input and FM2/3.
  • The classic oscillator is a morphable pulse/saw/dual-saw oscillator with a sub-oscillator and self-sync.
  • Most algorithms (all except sinus and audio-input) offer up to 16-voice unison at the oscillator level.
  • Oscillator FM/ring modulation.
  • All oscillator algorithms are band-limited yet they still cover the entire audible spectrum.
  • Noise generator with variable spectrum.

Filter block:

  • Two filter-units (7 different configurations).
  • Feedback loop.
  • Available filter-algorithms: LP12, LP24, LP24L (ladder filter with 1-4 poles), HP12, HP24, BP, Notch, Comb+, Comb-.
  • Waveshaper (5 shapes).

Modulation:

  • 12 LFO-units available to each voice (6 are running on each voice and 6 are shared for the scene).
  • DAHDSR envelope generators on every LFO-unit.
  • 7 deformable LFO-waveforms + 1 drawable/step-sequencer waveform.
  • Fast and flexible modulation routing. Almost every continuous parameter can be modulated.

Effects:

  • 8 effect units arranged as 2 inserts/scene, 2 sends and 2 master effects.
  • 9 algorithms: Delay, Reverb, Chorus, Phaser, EQ, Distortion, Conditioner (EQ, stereo-image control & limiter), Rotary speaker, Frequency shifter.

https://surge-synthesizer.github.io/

SuperSpread

SuperSpread free pitch-shifter | stereo-imaging by lkjb

SuperSpread is a free pitch shifter and stereo imaging VST, VST3, Audio Unit plugin developed by lkjb. Compatible OS(s): Windows 64b, macOS.

SuperSpread uses multiple pitch shifters to spread a signal thus allowing supersawing any input it is given.

Besides using it on any synths it is also a handy tool to create pseudo double tracking for guitars or to a lesser extend vocals. In case of guitars, it is best applied on a clean DI recording before amp simulations.

The source code is available on github.

Changelog:

  • V1.1.0: Update to new JUCE version.
  • V1.0.2: Fixed latency compensation in VST3 bypass.
  • V1.0.1: Added mix control (click on GUI to toggle knob), Statically linked MSVCP140.dll.
  • V1.0.0: Initial Release.

https://lkjbdsp.wordpress.com/