Utopia

Utopia free drum-machine by xoxos

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

Utopia creates “classic analog hihat and cymbal” timbres utilising Chris Kerry’s low CPU “audio oscillator” module for SynthEdit. Complete documentation and 16 presets are included.

Made with SynthEdit

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

Usine

Usine free host by Sensomusic

Usine is a free host VST application developed by Sensomusic. Compatible OS(s): Windows.

http://www.sensomusic.org/

UpStereo

ZynAddSubFX free software-synthesizer by paulnasca 4

UpStereo is a free stereo imaging VST, Audio Unit plugin developed by QuikQuak. Compatible OS(s): Windows, macOS.

UpStereo is a simple, useful tool to make your mixes bigger, in stereo width and loudness.

It uses three basic basic systems:

  1. A fixed frequency EQ designed to lift the highest audio frequencies, and boost the bass.
  2. A stereo width unit, for expanding stereo sounds so they appear wider and fatter. At extreme levels other characteristics are also brought out of the sound, so this can also be used as a tonal control for individual instruments. This also has a mono setting, useful for squashing up those aggressive samples that take over the mix.
  3. A loudness button that raises the waveform to the limits in a smooth curve. This saturation gives the mix a more perceived loudness, without clipping.

These stages create an overall loudness effect on the final output, so a gain control is included to keep the limits in check.

The main ‘bubble’ display on the plug-in is really a basic meter, when one of the stereo halves flash white, then the output is in danger of being clipped. Try and keep the levels so the white flashes only occasionally, this enables the loudness saturator to work at its best.

Features:

  • Loudness control enables a complex saturator to boost your mixes.
  • Stereo width slider going from mono to wide, bringing the stereo image out and towards the listener.
  • Subtle Air & Bass boosters to lift and help the audio ‘breath’.
  • Very low CPU usage.

http://www.quikquak.com/

unstable

ZynAddSubFX free software-synthesizer by paulnasca 2

unstable is a free pitch shifter VST plugin developed by de la Mancha. Compatible OS(s): Windows.

unstable likes to mess around with your audio pitch, with 3 subtle pitch modulation modes to simulate the unpredictable but lovable pitch instability of an old tape machine or analogue equipment. It doesn’t only do subtle though, you can also put it in ‘insane’ mode if you’d rather just FSU.

Features:

  • 3 modes of continuously random pitch modulation:
    1. Buzz – rapid, fuzzy modulation.
    2. Wobble – medium, jerky modulation.
    3. Drift – slow, gentle modulation.
  • Adjustable frequency and level for each modulation mode.
  • Master level mode to adjust overall subtlety of effect.
  • Wet / dry mix level control.
  • Insane mode – removes all subtlety and smacks your pitch up.
  • All controls mapped to MIDI CC values.
Made with SynthEdit

https://delamanchavst.wordpress.com

UNO Synth Editor

UNO Synth Editor free studio-tool by Autodafe

UNO Synth Editor is a free studio tools plugin developed by Autodafe. Compatible OS(s): Windows, macOS.

Free MIDI editor for IK Multimedia UNO Synth.

UNO Synth MIDI Editor offers access to most of the onboard parameters directly on screen, including some “hidden” parameters like full ADSR envelopes, Glide on/off and time.

Current version is 0.9 Beta and it’s available as a stand-alone app for Win and Mac.

http://www.autodafe.net/

Uno FM

ZynAddSubFX free software-synthesizer by paulnasca 2

Uno FM is a free software synthesizer developed by Synthtronic. Available format(s): VST for Windows.

Features:

  • 8 Note Polyphonic.
  • 128 Presets.
  • 5 Oscillators:
    • 1 Sine (Carrier).
    • 3 Sine (FM Modulation).
    • 1 Ring Modulation (Various waveforms).
    • OSC Modulation Amount.
    • OSC Tuning, Fine & Vol with readouts.
    • Ring Modulation Amount.
    • OSC MIX (Normal-Ring).
    • Sync On/Off.
  • 1 LFO:
    • Speed.
    • Aftertouch.
    • Wheel.
    • VCO.
  • 2 ADSR:
    • FM Modulation.
    • VCA.
  • Level out with VU Meter Key Tracking (Fixed).
  • High Pass Filter.
  • Effect:
    • Stereo Chorus engine with small delay (0-200 ms).
    • Modulation Depth.
    • Modulation Speed.
  • Arpeggio: (lots of features).
  • Velocity: (Variable).
  • Bend Range 1-12.
  • Portamento (Variable).
  • Mono (On/Off).
  • Retrigger (On/Off).
  • Transpose +/- 5 Octaves.
  • MIDI Receive Channel.
  • 128 Patches.
Made with SynthEdit

http://www.xsynth.com/

Unknown Synth

Unknown Synth free software-synthesizer by Odo Synths

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

Features:

  • 2 oscillators plus 2 for the phase modulation.
  • The first oscillator has detune and octave settings.
  • The 2nd also has detune.
  • Every osc has his own phase mod depth, the phase mod also has octave settings and you can choose note tune or normal tune.
  • 2 filter ADSRs with low/hi band and 4pole.
  • BPM filter sync or free.
  • BPM panner sync or free.
  • Bass Boost.
  • 2 BPM delays.
  • 128 presets.
  • The sequencer can control octaves or filters.
  • Trancegate.
  • Arpeggiator.
Made with SynthEdit

https://theodosynthsarchive.wordpress.com/

Unknown64

Unknown64 free software-synthesizer by Odo Synths

Unknown64 is a free software synthesizer developed by Odo Synths. Available format(s): VST for Windows.

Unknown 64 is a single oscillator synth designed to recreate the “classic” Commodore 64 sounds.

Features:

  • Vibrato.
  • PWM uses ADSR/Osc or both.
  • Low Hi Band Filter.
  • Auto panners.
  • Ring Modulator.
  • Arpeggiator with an end step and a wavetable.
Made with SynthEdit

https://theodosynthsarchive.wordpress.com/

Unknown 64 Pro

Unknown 64 Pro free software-synthesizer by Odo Synths

Unknown 64 Pro is a free software synthesizer developed by Odo Synths. Available format(s): VST for Windows.

Unknown 64 Pro is a single oscillator synth designed to recreate the “classic” Commodore 64 sounds.

Features:

  • Single oscillator
  • 4 waveforms (triangle, pulse, saw and noise).
  • A filter envelope with 3 filter types (lowpass, bandpass and hipass).
  • A pitch envelope / pulsewidth envelope and volume envelope.
  • Every Envelope can be inverted and has 13 different curves.
  • A ring-modulation oscillator or a ring-modulation BPM LFO.
  • A BPM LFO for the Pulsewidth, cutoff and oscillator pitch.
  • 3 big sequencers for creating the real c64 arps and percussions:
    • One is used for the octave and notes.
    • One only for octaves.
    • One for the waveforms.
  • All 3 sequencers are BPM sync with speeds from 1/16 to 1/128. They can be ended at every step or looped.
  • Vibrato, bitcrusher, MIDI learn and panner.
  • Envelope restart / pickup.
  • 128 presets.
Made with SynthEdit

https://theodosynthsarchive.wordpress.com/

Unit 1

Unit 1 free software-synthesizer by GTG Synths

Unit 1 is a free software synthesizer developed by GTG Synths. Available format(s): VST for Windows.

Features:

  • Unison oscillator. Stack up to 8 oscillators and detune these for really fat basses and leads.
  • LFO with key track.
  • Ring Modulator (Controlled by mod wheel).
Made with SynthEdit

http://www.gtgsynths.com/