Log InCreate An Account
  1. KVR Developer Challenge
  2. »
  3. 2018
KVR Developer Challenge 2018

KVR Developer Challenge 2018

Voting is CLOSED! The winners have been announced here (FYI they are listed below in the order they finished - the winner at the top)! Thank you and congratulations to everyone!

Welcome to the KVR Developer Challenge 2018, the seventh free-for-all audio plugin / audio application / soundware design event!

The "KVR Developer Challenge" is for anyone who develops Audio Plugins or Applications and Soundware. The challenge is to create and release a brand new free audio plugin, application or sound library / pack / set that will benefit the community at large. Creativity is key, it can be as simple or as complex as you want - KVR members will vote on the entries and pick the eventual winner using whatever criteria they choose to.

KVR Developer Challenge 2018 Entries


Plugin / App

Plugin / App



by Ignite Amps
Distortion / Overdrive / Amp, Guitar Pedal Emulation, Ignite Amps, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, ProFET

ProF.E.T. is a digital emulation of an high gain distortion preamp/stomp-box for guitar. It has been developed to accurately model its real hardware counterpart, designed and built by Ignite Amps in 2018.

The ProF.E.T. core circuit is capable of delivering tons of tube-like saturation using carefully tuned JFET based gain stages and filters to keep the distortion aggressive and rich of harmonics.

A 4 controls based tonestack with 2 different modes ensures maximum versatility and tone shaping options, whether you use the ProF.E.T. as a preamp or a distortion unit in front of a clean amplifier.


  • Ignite Amps proprietary JFET non-linear modeling engine.
  • 4 controls tonestack with additional Shape switch.
  • Mono / Stereo processing support.
  • Selectable oversampling rate (up to 8x).
  • Global input / output level controls.
  • Double precision (64-bit) floating point mathematical model.
  • Fully automatable controls.
  • Ignite Amps proprietary preset management system with bank file import/export functions.
by Dead Duck Software
Synth, Dead Duck Software, Deducktion, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Subtractive, VA synthesizer

Dead Duck Deducktion is a subtractive synthesizer, featuring:

  • Two oscillators with saw, square, triangle and noise waveforms with 'superwave' detune, PWM and square/triangle sub-oscillator options.
  • Flexible sub-oscillators with sub-octave and independent modes for advanced sound-design.
  • 2 resonant multi-mode filters with low pass, high pass, band pass, band stop and peaking options.
  • Multi-mode osc/filter/amp routing for multi-layer programming options.
  • Four envelopes, four LFOs and a 24-slot modulation matrix for a wide range of modulation possibilities.
  • Built-in delay and reverb effects.
  • MIDI CC control of parameters and modulation sources allowing full interaction with hardware controllers.
  • Customisable GUI themes.

Available in VST 2.4 format for Windows 32-bit and 64-bit hosts.

by Full Bucket Music
Synth, Full Bucket Music, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, MPS, Universal 2 Binary

MPS – short for "Musical Parameter Synthesizer" – is a software synthesizer plug-in for Microsoft Windows (VST2/VST3/CLAP) and Apple macOS (VST2/VST3/AU/CLAP). It is written in native C++ code for high performance and low CPU consumption. The main features are:

  • Unconventional sound creation approach.
  • Fast & easy editing using just a few "musical" parameters.
  • Straightforward resizable user interface.
  • 64 voices polyphony.
  • Supports MTS-ESP by ODDSound dynamic micro-tuning.
  • Resizable user interface (not "N" version.).
  • MIDI Learn ‒ all parameters can be controlled by MIDI CC.
  • Plug-in supports Windows (32-bit and 64-bit) and macOS (64-bit).

The aim of MPS is to create sounds fast and easy using a small intuitive set of
without bothering about the technical details.

MPS is the collaborative work of Wolfgang Kraus @www.wkreativ.at (idea+GUI concept) and Björn aka Full Bucket (DSP+GUI+patch programming). Read more about the background of this project in the user manual.


Here's a demo song by Wolfgang: SoundCloud.com/user-935392739/mypleasingsong

by Beat
Drum Sampler, Beat, Beat DRMR, Drum Bass, Drum Kit Sampler, Drum Kits, Drums, Electronic, Electronic Drums, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Techno

Beat DRMR is a VST/AU plugin for Windows and macOS, instantly providing 178 drum kits for Electro, Techno, Detroit, Minimal, Acid and other styles that need punchy drums. The pack includes a total 2.136 sounds, the sources include AirBase, Analog Rytm, Dreadbox, DrumBrute, a huge modular system and other fancy sources.

The drum kits:

  • 10 AirBase 99 kits.
  • 13 Analog Rytm kits.
  • 16 Defeated drum kits.
  • 8 DrumBrute kits.
  • 16 Hybrid kits.
  • 10 Lectro kits.
  • 19 Modular drum kits.
  • 15 Synthetic kits.
  • 16 TR-909 kits.
  • 8 Kits taken from Its Drums.
  • 26 Bonus percussion kits.
  • 11 selected synth kits (Blofeld, Dreadbox, Monark, Nova and others).

Audio demo: SoundCloud.com/beat-magazin/beat-drmr-kvr-developer-challenge-2018-audio-demo

EQ560 Free
by Red Rock Sound
Equalizer, EQ, eq560, EQ560 Free, Graphic EQ, Graphic Equalizer, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Red Rock Sound, Universal 2 Binary
EQ560 Free

EQ560 based on the 1967 classic. The 10-Band graphic equalizer features precision filtering and high headroom, ideal for signal enhancement. The curve shaping potential is unmatched, while unique "Proportional Q" design intuitively widens the filter bandwidth at lower boost/cut levels and narrows it at higher settings.


  • 10 bands of proprietary equalization.
  • Familiar graphics operation on one octave centers.
  • 12 dB of boost/cut per band.
  • "Proportional Q" narrows filter Q at extremes.
  • IN/OUT switch - Allows the user to bypass the Graphic Eq for before/after comparisons.


  • Double click — reset to default value;
  • Shift — reduce knob/fader sensitivity.

New in 1.0.2


  • Double click — reset to default value;
  • Save/Load patches.


  • plugin settings were not saved after exiting the DAW.
  • other bug fixes.
The Seeker
by Himiltungl Labs
Analyzer, Himiltungl Labs, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, The Seeker
The Seeker

Analog-style Spectrum Analyzer

The Seeker brings you fast, dynamic spectrum analysis that will make your FFT-based analysers look like they're frozen in time:

  • Up to insane 1/192-octave spectrum resolution.
  • 10 - 500 ms integration time to match different types of material.
  • Eigen SSE-optimized core for low CPU-usage.
  • Dual graph showing amplitude as well as dynamics simultaneously.
  • Resizeable, minimal user interface.

New features in v1.1.0:

  • Display graph axis values under cursor.
  • Hide logo*.
  • Hide settings*.
  • Set spectrum scale level to adjust for low or high signals*.

* saved in presets.

Video demo


  • Requires OpenGL hardware support.
  • Reportedly broken in Logic Pro X. Update: Please try v1.0.1 and see if it fixes the issue.

[Source code at github].

by tesselode
Pitch Shift, Flutterbird, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, tesselode

Flutterbird is a free, open-source effect plugin for adding pitch and volume fluctuation to incoming audio. It can be used for traditional wow/flutter effects as well as more chaotic, extreme modulation.

Flutterbird has four separate oscillators with adjustable speeds that can be mapped to either pitch or volume.

Inspire CC
by Samplesphere
Synth, Inspire CC, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Samplesphere

Please download from our site only - other sites providing a direct download aren't authorised to do so and may even charge for membership before allowing a download (royally ripping people off). Downloading from any site other than Samplesphere you are also risking the integrity of the files being corrupt or tampered with.


Inspire CC is a stereo or multi out sample based synth with four channels, each having its own sound source, controls and options. Although designed primarily to produce rich pads Inspire CC is capable of shorter sounds such as bass and other hard attack sounds.

The Dome randomises all four channels simultaneously or specific parts of each channel. Apart from the Domes centre it has intentionally been left unstated what other areas randomise to introduce absolute chance and maybe inspire new musical pieces as a result - see the general help picture. Obviously through trial and error it can be discovered what each part of the Dome randomises, if that is so desired.

The random sweep generators (RSG) for each of the four channels create sweeps of varying speed and tonality. The master random sweep generators do exactly the same as the RSGs but for all four channels simultaneously, creating different sweeps for each channel. The generated sweeps can be so subtle as to be almost imperceptible, powerfully dramatic or anywhere between the two. There are also sweep templates to aid the creation of custom sweeps. Sweeps can be turned off for each channel by disabling the filter envelope resulting in a regular low/high pass filter.

Using only the Dome and the random sweep generators it's quick and easy to create useful presets for Inspire CC.

Right click anything to check for available MIDI control.

Automation is available for all parameters that make creative sense to have it.

On interface help.

There are more preset banks other than the default.

All audio demos were created using only one instance of Inspire CC (with added drums).

Why 32-bit VST only? Many third party SynthEdit modules were used to create Inspire CC and, unfortunately, there are no 64-bit versions of the modules.

Syncla-X [Large Version]
by Digital Systemic Emulations
Synth (FM), Digital Systemic Emulations, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Syncla-X Large Version
Syncla-X [Large Version]

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.


  • 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).


Sounds Of Life
by Ocean Swift Synthesis
Sample Library, Field Recordings, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Ocean Swift Synthesis, Samples, Sound Effects, Sounds Of Life, Soundscapes
Soundware for: WAV 24-Bit

Sounds of Life is a sample library containing all sorts of every day sounds in clean sampled form and also edited into strange and crazy effects.


A Different and more experimental sample pack containing field recordings of everyday sounds in raw form, and transformations of these raw sounds into musical bits, chords, drums, atmospheres and effects........ Ambulances, microwaves, cars, engines, hums, honks, dogs, babies, alarms, chimes, kids, telephones, spoken words, machines... monsters, drones, screeches, aliens, stabs, pings, pongs... and... much more.

Useful to musicians and music producers – looking for everyday sounds to mix with your drums or snares, or pads and atmospheres for your intros, dramatic textures for your breaks - you can find many uses for your music even with the raw field recordings if you think a bit outside-the-box...

And of course - very useful to sound designers, video editors and game designers.

Files: 594 Files, 7 Folders, 904MB total.

Format: 24-bit – 44100hz .wav format.

by lkjb
EQ, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, lkjb, TinyQ

TinyQ is - as the name suggests - a rather tiny EQ. There are lots of good large EQs around but nothing versatile if simply a few adjustments are needed. The EQ provides the following features:

  • 4 bands 20 Hz to 20 kHz, two of them switchable between peak and shelf.
  • Butterworth hi- and lo-cut with orders between 6 and 48 dB/octave.
  • Toggle (Tiny/Large/Huge) to make it a bit less tiny. Huge mode is new in version 1.5.
  • As some may notice the user interface is inspired by a DAW's channel EQ.
  • Set a default size for new instances (new in version 1.5).
  • Set default settings for new instances.

  • Included frequency analyser.

To set default settings or enable the analyser (factory-default is disabled) use the menu shown by right-clicking on the frequency plot.

Version 1.5 now uses IPlug-Youlean and thus doesn't have the JUCE Personal License splash screen or the usage analytics any more. Please be aware of the following knwon issues:

  • VST3 seems to not show the user interface after a resize on macOS Mojave.
  • While the VST2 version 1.5 is compatible with the previous (JUCE) version of the plugin the VST3 and AU plugin isn't. While the VST3 plugin simply isn't compatible, the AU plugin will load blank projects that used JUCE versions of the plugin. For that reason, use the JUCE version when working with old projects. These can be downloaded below.

Up to but excluding version 1.5 the plugin was made with JUCE (juce.com) and used JUCE's Personal License. Due to this it shows a splash screen when it's opened. Also, the JUCE Personal license requires the product to send (anonymous) usage data to google-analytics. In the download's zip file is a text file with a few more details. This is only relevant if you use these versions for compatibility. The downloads are available here for macOS and Windows.

by Damaged
Distortion, Bitcrusher, Damaged, Dystroyed, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Resampler

Dystroyed is a high quality Plugin with creative distortion and conversion algorithms for inspiring sound-design:

  • Distression for distortion.
  • Bitcrushing.
  • Samplerate-Reduction.
  • Samplerate-Envelope.
  • Sidechain-Function for Samplerate.
  • Volume-Control.
  • So much fun and happiness while dystroying your sounds.

Youtube Teaser

Gogodze Phu Vol II
by Karoryfer
Drums, Gogodze Phu Vol II, Karoryfer, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018
Soundware for: sforzando, sfz, WAV
Gogodze Phu Vol II

Gogodze Phu Vol II is a free set of acoustic drum samples which can go from lo-fi to hi-fi. The sound is inspired by the dirty drums on Kim Jung Mi's 1973 album "Now", but the controls also offer the choice of greater clarity.

Key features:

  • Kick, snare, hi-hat and three toms.
  • Heavily dampened drums for a short, cutting sound.
  • Hi-hat with five degrees of openness plus foot chiks.
  • All kit pieces recorded with the same seven microphones.
  • Fidelity control for setting the microphone phase alignment.
  • Mixes ranging from one mic for the entire kit to all seven.
  • Four mic mix in the classic Glyn Johns setup.
  • Additional controls for kick dirt, snare fat, hi-hat trash and tom thud.
  • 1701 total WAV samples, over 400 MB extracted.

Requires Plogue Sforzando 1.933 or newer. This is an entry in the 2018 KVR Developer Challenge.


Mono Repeater
by Tilt Audio
Delay, Ambient, Delay / Echo, Filter Delay, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Mono Repeater, Tilt Audio

Mono Repeater is a classic digital delay simulation of an analog tape delay. The application was designed and written by Tilt Audio, a moniker of Akash Murthy, an audiophile and enthusiast. The sleek interface helps the user dial in the perfect delay, ranging from a subtle ambient reverb effect, to full blown in-your-face echo box. It is mainly intended to be used as a plugin within a host, and boasts a wide range of tempo selection option to dial in the perfect delay time setting when recording or playing to a click track.

Parameters and functions:

  1. Delay Time: is measured in milliseconds and ranges from 30 to 4000ms. Delay time can also be measured in beats (quarter, triplet, half, full, etc) when the selection switch is toggled to Sync. This syncs to an internal clock which can be determined by a manual BPM selection, tap tempo selection or host BPM selection.
  2. Feedback: determines the time taken for the delayed signal to fade out. At 0% the signal is only repeated once, while at 100%, the signal is repeated infinitely with no attenuation. Care should be taken when using this setting close to 100%, since it can cause feedback loops easily while playing out loud and can potentially overload the output device.
  3. High Pass: or Low Cut, determines the low cut off frequency of the high pass filter. It uses a classic 2nd order Butterworth IIR design. Use this to reduce the bass or low end of the delayed signal. Range: 20 - 2kHz.
  4. Low Pass: or High Cut, determines the high cut off frequency of the low pass filter. It uses a classic 2nd order Butterworth IIR design. Use this to reduce the shrillness or high end of the delayed signal. This setting is especially useful when used with string or percussive instruments to drown out the ring or attack sound. Range: 2k - 20k Hz.
  5. Mix: determines the amount of input signal vs delayed signal that is routed to the output.
  6. Type: currently supports two delay modes. Digital is the classic delay mode in which the mono signal is split into two stereo channels. Ping Pong delay offers a wider stereo spread where the signal bounces from one channel to the other.
  7. Host Selection Switch: Toggle this on to receive BPM information from the host application. If used as a standalone application, this is hardcoded to 120 BPM.
  8. Tap: lets you tap in the time by clicking on the tap button several times trying to hold a steady quarter note beat. The BPM can be finely adjusted by clicking and dragging on the BPM box or by entering a specific value.
  9. Performance Switch: is the unnamed switch on the top left which turns of metering and decreases the overhead required to run the plugin. If the plugin experiences sluggish use due to many plugins running simultaneously, use this in the Off setting.

The application allows the user to build a preset library that can can save and recall at anytime. It is supported as a VST and VST3 64-bit plugin and a standalone application in Windows and has added support for AU in OS X.

Please write to akash.360@aol.com for any questions, criticisms and/or drink invitations.

Minimal Clock
by Minimal Instruments
Clock, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Minimal Clock, Minimal Instruments, ROMpler, Universal 2 Binary
Minimal Clock

Minimal Clock is a clock ticking sound sampler.

This plugin simply contains collection of clock ticking sounds which are ready to use for pretty much any BPM from 68 to 160 BPM. This plugin contains more than a thousand samples. In addition to default BPM, Playback speed can also be controlled with the upper dial on the watch.

The BPM is adjusted without pitch shifting.

It is very usable for any genre of music.

Download is available at Minimal Clock - Minimal Instruments (minimal-instruments.com)

UPLOAR 24 Made a tutorial for us Thank you.


We are planning to add some more clock sounds in near future. Pls stay in tune.

by Mathieu Carre
Distortion, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Mathieu Carre, Waveshaper

Distortion is a distortion effect plug-in based on a graphical interface. You can draw the distortion function that shapes the nature of the distortion.

It includes:

  • Presets.
  • 4x oversampling to reduce aliasing created by the non-linear function.
  • 5 movable dots to shape the distortion function.
  • Drive knob to choose the amount of distortion.
  • Output gain knob to compensate for any gain increase due to the drive or the distortion function.
  • Output low-pass filter knob to reduce any harsh high-frequency.
  • Mono/stereo input to mono/dual-mono (not stereo) output.

For questions, ideas, issues, visite my website at mathieucarre.com

T.Rex 1982
by Max Project
Drum Machine, Classic Drum Machine, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Max Project, TRex 1982, Vintage Drum Machine
T.Rex 1982

T.Rex 1982 is the latest virtual instrument from Max Project designed in collaboration with producer Lic. Ezequiel Morfi (TITANIO, Buenos Aires, Argentina) - both have travelled through space and time in search of a special treatment for the original sounds from a "LinnDrum " rhythm machine possessing the 'retro' touch of the original patches while at the time sounding modern and up-to-date due to a 64-bit floating-point 'mastering' process with the latest in DSP. T.Rex 1982 will specially deliver in the new retrowave, vaporwave and synthwave genres.

MS Windows as well as Mac OS X x86 and x64 versions.

Main features:

  • 16 classic sounds with volume and pan control each.
  • master volume control.
  • integrated algorithmic reverb.
  • "80s Plus" effect (special lowpass filter).
  • Vintage-looking GUI.
  • Low CPU usage.
The Haunted Toy
by Misery Factory
Horror, Choir, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Misery Factory, Organ, ROMpler, Sampler, Scary, The Haunted Toy
The Haunted Toy

This is a funny and free virtual instrument, created for the KVR Developers Challenge 2018.

The instrument can be used to produce spooky, creepy and scary tunes, for Halloween videos, silly horror games or low-budget horror films.

It includes a 2-octave organ and a 2-octave bells kit (?), both supported by a chorus of angels and demons, and it also features some ghosts and haunted house sounds in the background.

The instrument is 100% free, and it was made using only Public Domain samples.

Ambiguous Guitar Duo
by Signal Experiments
Acoustic Guitar, Acoustic Bass, Ambiguous Guitar Duo, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, sfz, Signal Experiments
Soundware for: Dimension Pro, sforzando, SFZ/WAV

Remember that song where you couldn't tell if an instrument is a guitar or a piano?

Neither do I.

But now you will no longer forget. Because now, you can make your own confusing music.

Using the magic of phase alignment, we tried to answer the curious question of what would happen if you align samples grabbed from different instruments. And with the excellent samples of FlameStudios, FreePats, Patch Arena and bigcat Instruments, we present this one of a kind amalgamation of five different instruments squashed into a bass and a guitar. Well, sort of. Whatever, the outcome is, it is called the Ambiguous Guitar Duo.

Demos at Youtube:


  • The library format is SFZ and has been tested (and developed) with Plogue sforzando.
  • The samples themselves are in WAV format.
    • 144MB uncompressed.
    • 44.1kHz 16-bit.
  • There are several SFZ files provided:
    • Guitar and bass with a piano blended in:
      • ambGuitarPiano.sfz.
      • ambBassPiano.sfz.
      • ambBassGuitarPiano.sfz: Combined version for 88-key live-playing with the guitar shifted to higher keys. Key-switching controls whether there is more bass or more guitar.
    • Less weirdness without the piano:
      • ambGuitar.sfz.
      • ambBass.sfz.
      • ambBassGuitar.sfz.
    • Lightweight versions of the above sampled in minor-thirds:
      • xxx_lite.sfz.
  • A MIDI controller with weighted keys or a MIDI-capable digital piano is recommended for live playing. Otherwise, a bit more bravery might be necessary.
  • Licensing: GNU General Public License version 3 or later, with a special exception.
by Zoned
Sampler/Sample Player, Busta, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Zoned

Busta is a harmonic-series-based, instant-play, monophonic sampler for Windows.

Included are 30 fully customizable presets, based on 10 audio loops / textures, all played directly from your computer keyboard. Just click the question mark on the GUI for instant access to the full user manual.

by PhonicsAudio
guitar and drum synth/controller, Hardwired, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, PhonicsAudio

Introducing Phonics Hardwired - a toolset of 2 controller plugins and a drum synth.

You may be aware of my guitar to synth products 2SYN. This is a new application. This synth only needs a regular electric guitar, not a hexaphonic pickup. It's quasi-polyphonic, favouring the last played/loudest note. The synth is basic and heavy in my opinion. The pitch detection is a heavily filtered zero crossing counter for each string. It has 2 modes - mono and quasi poly. In mono only one note will sound at a time, and in poly it will let you play more than one string.

To use it:

  • Hopefully you just need to adjust the 'gain' knob and multiplier underneath for the level coming from your soundcard. More controls are exposed, if you use it you can get familiar with these.
  • Your pickup (I've only tried humbuckers) should be bridge with tone and volume all the way up. It will help to skew the bridge pickup by making high E as close to the strings as possible, and low E as far away as possible.

drum CTRL
This is a drum kit for X-Box controller or PlayStation 3&4 controller. It's got a real simple/intuitive layout. Sorry not quite finished yet. You can play a drum kit with a gaming controller. Hope it's fun. I think it is a bit addictive.

To use it:

  • An XBox controller will need to be installed on your computer. Windows 10 will automatically do this if you plug a controller in, lower Win versions need Microsoft XInput driver installed.
  • A PlayStation 3 or 4 controller needs a driver made by SCP, get it here: emulation-general.wikia.com/wiki/SCP_Driver_Package - after that is installed, the Xbox controller XInput driver is necessary as per your Win version installed.

This is a basic drum synth with necessary features. Sorry I haven't written the presets/drum sounds yet. Use is straightforward.

Hope you like these and enjoy all the new technology.

by beatassist.eu
Delay, beatassisteu, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Mid-Side, MSDevil

MSDevil is a plugin effect that makes part of a pack/bundle of plugin effects that is being created by beatassist.eu.

This effect is a simple Mid/Side Delay with crossover for each band (Mid/Side).

MSDevil is distributed for Win OS 32-bits VST2 / 64-bits VST2/VST3 and Mac OS.

(The Mac version is still in alpha stage. The user may encounter some bugs).

This product will be available for free at www.beatassist.eu as soon as the pack/bundle is complete.

by Strainwave
Synth (Analogue synthesis), Analog, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Strainwave, StrainwaveSCA2018, Synth

Sca is an analogue synth made of crossed forms combined with an ambient emulation of many instruments, you will be able to start from instruments sounds tweaking the acoustic parts.

A great tool in other ways if you wish to mess up colors and weight of the instruments by your synthesizer.

How to play Sca: read the user manual !

No sample and "acoustic" sounds based :

Piano, flute, brass, strings, plucked all marvelous.

oriental and occidental instruments are present.

SCA "signal control ambient"

Sustaining pure sine wave based sounds, < the most prevalent sound for each instrument family in parallel of a good reverb. Result the best emulation, on this keyboard you play tuned as real instrument sounds. Best envelope, eq scale range, many ambient controls and no sample.

sound is very stable, may be the next target is a smaller version focusing music productivity and discret interface.

"the sounds are magically colorful and live" this is a meeting with the silky notes of each acoustic family, a journey, how simple tuning your whole synth then go play all your sounds ... go ahead:


Alpha9 news:

  • Now The Screen Keep Edit Mode For A Sound Staying To Build
  • The Mod Wheel "Bender" Is Tuned For Two Modes (Bend/transpose)
  • Velocity Was Adjusted For Both Virtual And Controller Keyboards.
  • The Tessiture Tool Now Works, Sound Presets And "Mtone Presets" Buttons Was Inverted For Easier Use .
  • Sound Was Highly Revised Also The Microtone Becomes Real Better.

Old Fxp "shut sound " bug was repaired for 90% of the early version (better keep using respective older versions, much safer)

tech :

The Mtone is accurate as cent, diapason tuning works (automatic and precise).

Animated ADSR SPECTRUM in music mode "ADSR editor gauge.

V5 first tunable version of SCA (probably the last for Kvr challenge).

now get all the instruments tuned :

Tuning tools, now find automatically the pure A 880hz for all instruments:

Microtone tool, add it to your tuned instrument "15 types Mtone selection ".

On screen all tunings are shown for the fastest and best precision freq/tune setup.

Output sound quality always better.

A new sound demo, listen all kinds of instruments emulated by the SCA.

New updates everyday.

Now a precision tuning, Adsrc and visualization modes were added.

(complete version, Midplayer and tuning are fully operational).

Latest SCA:

20.09 Updated " Alpha Sca complet " Version 1.54C.

24 09 new V54c rev M, microtone new tool "now tuned" (first ready to play):

26.09 controls revised /augmented and display optimized.

28.09 Available SCA V1.54A The definitive real Alpha full features now tune.

" New manual for MIDI player and synthesis mode "


Happy VST fun.

Demos at Youtube:


An easy synthesizer, for Windows10 no latency at 1000 samples buffer.

Installing the sca, first start creates a SCA files folder.

(Sca is a synthedit plugin, it runs Vb2015 runtime).

Found on strainwave site.

SloTone Ultralite
by Midi Mobiles
ROMpler, Expander, Glitch generator, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, Midi Mobiles, Recycle, SloTone Ultralite
SloTone Ultralite

SloTone Ultralite is a MIDI Mobiles soundbank rompler for playing .wav sounds with a slice manager (up to 128 sounds for an instrument compiled in a single wave file with text files). It similar to SoundFonts and other formats merging wave sounds with MIDI files.

It's the third version of a collection of SloTone Software (SloTone Organizer and SloTone Player).

Lighter and more functional, SloTone Ultralite consumes very little CPU and is compatible with the majority of sequencers with the integration of 32-bit VST plugin.

With templates incorporated in the software, you can encapsulated sound with a quantification of 128 step and reindex this sound, you can rearrange the order of this sound and also the pitch in semitone with decimal value for more precision...

Some compatible soundbanks, didactic videos and video performances will soon be added...

You can compile your own soundbanks using several MIDI Mobile stamped software but also with audio processing and batch conversion software like Goldwave very suitable for the creation of the 'All in one' sort of ready 'Slug' Sounds for SloTone...

V.0.4 version:

  • Restart the plugin with the rights users parameters (save and load in your DAW).

V.0.5 version:

  • More stability when we change the sound.
  • The button 'Ready to Play' is advisable before load a prepared sound (for autoslice, new slice and .end file separate detected). Arm this and select your sound in the Navigator).

V.0.6 version:

  • Delay on the MIDI file names to avoid fatal crashes when changing sound during playing a MIDI file.
  • Better incorporation of SloTone.ini data.
  • Fix minor bug.
  • User manual (en) with mini tutorial inside in the package.

V.0.7 version:

  • The templates files are now well localized with SloTone.ini (the template control didn't work).
  • New templates texte file for make compatible 4, 8, 16, 32, 64 beats compatibles with a resolution of 64 and 128 beats.
  • More info in the packages.

V.0.8 version:

  • Template improvement.

  • More suitable settings on pitch offset, range of transposition by octave and semitone.

  • List of different controllers used for software settings:

. Mod wheel CC01.

. Volume CC07.

. Gain CC08
. Portamento time CC05
. Cutoff CC74
. Resonance CC71
. Pan CC10
. Pitch Offset CC31
. ADSR Attack CC73
. ADSR Release CC72.

. Pitchbend of course (you can adjust the range by right clicking on the pitchbend).

V.0.81 version:

  • Fix a bug about restart the plugin with the rigths users parameters.

V.0.9 version:

  • Fix a bug when you load a MIDI list .dim (custumised).
  • Double click in 'MIDI list' reload the SloTone.ini configuration (EcolooP.dim by default).

V.1.0 version:

  • All versions of SloTone (Organizer, Player and Ultralite) are in 1.0 version now.
  • Please download SloTone.rar another time to have new templates (with midifiles corrected). You can use midifiles with a '_' at the end of the name for transpose the sequence from the C2 note (slice 49).
  • New sounds in SloTone_Organizer\Instruments repertory...


  • Randomize min/max number with patchs memory.
  • Midi list index with patch memory.
  • the 'Sample Root' function has just been improved. You can pitched now a MIDI loop when 'Sample Root' is triggered .
  • Click to Root_Ultralite.bat for link the templates folder with SloTone.ini (put it in the SloTone_Ultralite folder of your 32-bit plugin folder).


New documentation in the package and:

  • Improvment to the Mute function (add smooth for avoid untimely clicks).
  • The min /max list show number equivalence for transposed templates (midi files and _10.txt / .end with '_' are transposed but not by default in the recent versions. There's no need to use the old system with new MIDI Mobiles soundbank but the old system was kept for the other).
  • Refresh of the Favoris list with favoris panel.

V.1.103: (11/17/2018):

  • Deleting deadlines when passing from one sound to another via the .wav file browser (no more crashes without delays with the new edit).
  • No more stop forcing on MIDI Player when instrument or program change.
  • minor bug fixes.

V.1.7: (02/07/2022):

  • Consolidation of indexes and 'Sample Root' mode (Passing background / Foreground of the plugin).
  • Better automation of the ModWheel in UltraliteXL.
  • Add a Show MIDI Keyboard option in Ultralite versions (see the keyboard picture in slice panel).
  • Fix other minor bug...

V.1.71: (18/07/2022):

  • Init Patch (.fxp & .fxb) have been updated.
  • Title .wav or Title Instrument (SEG List) when you click in right arrow (red to have .wav Title & green to have SEG List).
  • Bubble when you activate the keyboard for have the start Key (octave).
  • Click mode or Step mode on [Shift] touch (Image placed correctly).

SloTone_Ultralite can be downloaded at:


You can also download now the 3 versions of SloTone (SloTone_Organizer, SloTone_Player and SloTone_Ultralite) in an only SloTone.rar package with templates integrated in SloTone_Organizer repertory at:


The support for SloTone KVR Challenge DC2018 is here:


come and say hello ...

Don't forget to recover SloTone.ini and put it in the plugin repertory to access the templates...

(click to Root_Ultralite.bat or Root_Organizer.bat in SloTone_Organizer repertory for create the SloTone.ini file).







UNO Synth Editor
by Autodafe
MIDI Editor, Autodafe, KVR Developer Challenge, KVRDC, KVRDC18, KVRDC2018, UNO Synth Editor
UNO Synth Editor

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.

Rules, Information, Guidelines, etc.

Show/Hide Rules

Any operating system, any plugin format, a stand-alone application, a sound library - anything that will assist in music making goes! You have two months to get it together - submissions will end on August 31st, 2018. They will all then be hosted for download on the KVR server and released "AT ONCE" for public appraisal and voting!

Although anything goes, you should consider how to appeal to the largest market - things such as open source or being multi-platform may garner a bigger audience, and consequently more votes. This is your call though. Whatever you are comfortable with!

The Basics:

  • Anyone may enter.
  • Your entry must be an original creation made by you (your team / crew / company / family). Of course you may reuse code / modules / development frameworks, but the actual plugin / application / sound library should be a new, original creation, not just an obviously cut-down subset of a program you have already written.
  • Your entry must not break any copyright rules or license agreements - if your entry uses GPL code then your code should adhere to any restrictions imposed by this, for example.
  • Your entry must not be restricted in any way that could make it appear to be a demo / trial version for a subsequent "full" release. i.e. It must not be save-disabled or beep every few seconds or nag the user to donate / pay, etc. Your entry should be fully functioning and remain fully functioning forever.
  • Your entry may support any operating system(s) in general use for making music: Windows, Mac OS X, Linux, iOS or Android.
  • Your entry may support any plugin format, or be a stand alone application / utility, or be a sound / sample library.
  • You may use any programming language or development environment (e.g. programming languages such as C++, Delphi, Java, etc. or any of the myriad development applications such as SynthEdit, Flowstone, Max, etc.).
  • Design and testing must be done in private - public beta testing is not allowed as this may affect the voting process.
  • During the voting period you may update your entry but updates must be bug fixes ONLY. You are NOT allowed to add new features or rework existing ones during the voting period.
  • You grant KVRaudio.com the permission to distribute your entry for download via our server from September 3rd, 2018, onwards.
  • You grant KVRaudio.com the permission to act on your behalf, without monetary involvement, for your entry to be published and/or publicized in/on written publications with or without accompanied media such as CDs and DVDs, as well as online publications. You may choose to opt out via a written (email) disapproval of such permission at the time of your entry. KVRaudio.com will not seek or make attempts at financial gain by promoting your entries on written or online publications.

How To Enter:

  • To enter you will need a KVR Developer Account [get one here - it's free]. If you already manage your products and submit news directly at KVR, you will already have one.
  • Access the Developer Control area and add your entry as a new product but remember to also set the KVRDC18 flag. Anything flagged as KVRDC18 will NOT be made live on KVR until the KVRDC18 go live date of September, 2018.


  • KVR Members will vote for their favourite entries between September 3rd-30th, 2018. Depending on the amount of submissions, the voting period (and consequently the winner announcement date) may be extended for another week or so. All KVR members will be eligible to vote although we may instigate some restrictions at the time of voting - maximum joined date, minimum number of posts, etc. - to help prevent voter fraud.
  • Voting will be in the form of selecting a top 5:
    • 1st choice will be awarded 5 points.
    • 2nd choice will be awarded 4 points.
    • 3rd choice will be awarded 3 points.
    • 4th choice will be awarded 2 points.
    • 5th choice will be awarded 1 point.
  • The winners will be announced on October 1st, 2018.
  • The prize fund will be delivered to the winners (or charity or recipient of the winners' choices) via PayPal within a week of the winner being announced.

The Prize Fund (Money Money Money)

  • The prize will be cold, hard, cash, made up from donations from the KVR community. Donations can be made via PayPal and will be held in escrow by KVR Audio until the winner has been selected. The prize will be paid to the eventual winner via PayPal. We'll endeavor to keep the prize fund total updated here.
  • The prize fund will be split:
    • 30% to the Windows Plugin or Standalone Application entry with the most votes 1, 2
    • 30% to the Mac OS X Plugin or Standalone Application entry with the most votes 1, 2
    • 20% to the next highest placed entry
    • 10% to the highest placed Soundware entry
    • 10% to a wild card random selection (maybe an iOS or Android entry, if we get any!)
  • Additional prizes, donated by fellow developers, will also be available and distributed on an ad-hoc basis. If you wish to donate something please contact laura@kvraudio.com

1 These can be the same entry. If it is multi-format and gets the most votes the entrant would receive 60% of the prize fund.

2 Yes we know Linux (and other OS) appears to be overlooked but the Linux (and other OS) userbase at KVR is very small so we'll concentrate prize distribution on the two major Operating Systems for audio production - Windows and Mac OS X. However, in the event of the unlikely situation that the entry with the most votes is for Linux (or another OS) only it will be awarded 30% of the prize fund and the next 40% will be split between the highest placed Windows and Mac OS X entries (20% each) and the "next highest placed entry" will receive 10% instead of 20%.

Good Luck!