Knowledge Base


This is only verified on Ubuntu 18.04 and requires 64bit version.

Minimum Requirements: resolution of 1920x1080 for your primary screen, and graphics card with drivers able to run version 4 of OpenGL shaders. Suggest installing the latest graphic drivers and recommend the system uses an SSD Drive.

You will need FFmpeg installed. sudo apt update;  sudo apt-get install ffmpeg;

If you have trouble importing a file (e.g. mp4), you could review:
which amounts to trying this: sudo apt-get install ubuntu-restricted-extras

Some OS distributions don't have the certain libraries installed by default, these should be detected missing and listed on the splash screen for you to install via your package manager. The deployment is not fool proof yet, therefore for reference, as well as ffmpeg,  IQSynth relies on the following libraries: sqlite3, libfreetype, libpng, libjpeg.

Known issues are listed below

If you can not find an answer, wish to report an issue or ask a question, please email contact@iqsynth for support.

Latest release notes and download here.

Currently working on: Midi Review

Known Issues are listed below (simple list at this time).

High Priority

1. Reworking APC mapping

Mid Priority

1. Text entry sometimes does not accept key presses unless cursor is left over control

Low Priority

1. New takes are not available for instances of a clip already in the rack (workaround: replace instances to use new takes)

General Notes:

As of 29th Aug 2019, v 0.15.0 updated plugin system and released all available plugins

As of 30th Jan 2019, v 0.10.5 updated plugin collection, should run better on NIVIDA setups .

As of18th Dec 2018, v 0.9.17 includes a security update for the SQLite component.

As of 24 Sept 2018, v 0.9.4 no longer requires libGLEW, this was causing the application to stall at startup.

To Do List (no particular order, you could contact and vote for priority)

  1. General tidy-up and optimizations (on going)
  2. Create and add menus system, and drop down controls
  3. Plugin installs via front end
  4. Plugin API Documentation
  5. Investigate AppImage deployments


Q & A

Q: The application stops with the splash screen saying my version of the OpenGL Shading Language is not high enough, why?

A: iQSynth relies on the response from the drivers when querying the available shading language version. You can check whats available by installing glxinfo, then run the following command at a terminal:

glxinfo | grep shading

It has been reported that it is possible to have a different shading language versions listed and the OpenGL check in iQSynth performed by glGetString(GL_SHADING_LANGUAGE_VERSION)  is returning a lower version then required.

IQSynth Revision Notes

A list of all the notes from all versions is provided below.


fixed bug in snapshots that was failing to load / assign macro setup
migrated macro table to new structure, pending cue rack macro controls


added toggle play option to AB Racks
updated plugin API
-- think this has been used/tested enough now
-- so also releasing all (44) current plugins


tweaked video editor button on workbench
tweaked look of buttons on sources
fixed bug in FX plugin interface, (when updating text on some of widgets)
fixed new FX Stack accordion had a few display / behavior bugs


replaced single autofade controls with more standard twin controls
replaced 3 separate fade controls with single control and alt option
replaced dimpled knobs with line marked knobs
changed size of cuerack to match other racks and allow space for macro controls
reintroduced 4 tape deck
changed timing of channel xfade to match feel of all fades speeds


Limited FXStack macro(previously called drivers) to 2 pairs of controls (main and alt)
- allows a single range parameter for each macro control at this time
- prep work for upcoming CueRack mixer
Reworked macro configuration panel
Fixed a gui mis-alignment bug
Mouse now warps on some control types
More minor interface tweaks